Details Place of Origin: China (Mainland) Model Number: 3944816 name:: Screw shipment::by air ,sea ,express MOQ::20Piece/Pieces feature::good price with high quality Supply Ability::5000 Piece/Pieces per Week     Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details Place of Origin: China (Mainland) Model Number:3936365 name::pressure relief valve shipment::by air ,sea ,express MOQ::20Piece/Pieces feature::good price with high quality Supply Ability::5000 Piece/Pieces per Week   Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details 6BT Engine Parts Bypass Valve 3934410: Type: Bypass Valve Part No.: 3934410 Egine Model: 6BT Color: Sliver MOQ: 20PCS Size: Standard Package: Carton    Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details   Part Name Screw, Hex Flange Head Cap 3900678 Engine Model ISF2.8 Engine Type Diesel Engine P/N 3900678 MOQ 10pc Weight contact us applied engines: KTA38G5 engineKTA38G2 engineKTA38G2 engineKT(A)38G(M) engineKT(A)38G(M) engineKT38M engine         Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.      Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.      Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.      Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details Type:Valve Collet Size:Standard Size OE NO.:3900250 Place of Origin: China (Mainland) Model Number:4BT 3.9 Warranty:12 Months   4BT3.9 valve collect 3900250 ET No. MODEL OEM NO. SCDC-CS001 4BT 3929039 SCDC-CS002 4BT 3914638 SCDC-CS003 4BT 3925582 SCDC-CS004 　 A2300 SCDC-CS005 6BT 3949042 SCDC-CS006 6BT5.9 3929042 SCDC-CS007 6BT5.9 3914638 SCDC-CS008 6BT5.9 3929886 SCDC-CS009 6BT5.9 3914639 SCDC-CS010 6BT5.9 3925582 SCDC-CS011 6BT5.9 3907824 SCDC-CS012 6BT5.9 3929039 SCDC-CS013 6BT5.9 3910624 SCDC-CS014 6CT 3914640 SCDC-CS015 6CT 3923478 SCDC-CS016 6CT 3924471 SCDC-CS017 6CT 3935716 SCDC-CS018 6CT 3935715 SCDC-CS019 6CT 3927693 SCDC-CS020 6CT 3930347 SCDC-CS021  6CT 3923478 SCDC- CS022 6CT 3976620 SCDC-CS023 6CT 3977620 SCDC-CS024 6CT 3976619 SCDC-CS025 NT855 111888 SCDC-CS026 NT855 129860 SCDC-CS027 NT855 3023228 SCDC-CS028 NT855 3801030 SCDC-CS029 NT855 3608840 SCDC-CS030 NT855 143450 SCDC-CS031 NT855 3023177 SCDC-CS032 NT855 3023229 SCDC-CS033 NT855 3608842 SCDC-CS034 NT855 3023874 SCDC-CS035 NT855 3050000 SCDC-CS036 NT855 3049023 SCDC-CS037 NT855 3047452 SCDC-CS038 NT855 3801763 SCDC-CS039 NT855 3025518 SCDC-CS040 NT855 3042568 SCDC-CS041 NT855 3026975 SCDC-CS042 NT855 3049024 SCDC-CS043 NT855 3025517 SCDC-CS044 NT855 3026972 SCDC-CS045 NT855 3044767 SCDC-CS046 NT855 3801668 SCDC-CS047 NT855 3608786 SCDC-CS048 NT855 3801951 SCDC-CS049 NT855 3053525 SCDC-CS050 NT855 3801426 SCDC-CS051 NT855 3036697 SCDC-CS052 NT855 3803903 SCDC-CS053 NT855 3801749 SCDC-CS054 　 NH220 SCDC-CS055 K19 207770 SCDC-CS056 K19 3066877 SCDC-CS057 K19 3066882 SCDC-CS058 K19 3066822 SCDC-CS059 K19 3608786 SCDC-CS060 K19 3076767 SCDC-CS061 K19 3060610 SCDC- CS062 M11 3087856 SCDC-CS063 M11 4004556 SCDC-CS064 L10 3031461 SCDC-CS065 L10 3036117 SCDC-CS066 L10 3803651 SCDC-CS067 L10 3804824 SCDC-CS068 L10 3037523 SCDC-CS069 L10 3803650 SCDC-CS070 L10 3804823 SCDC-CS071 L10 3895679 SCDC- CS072 　 3895809 SCDC- CS073 　 3895805 SCDC-CS074 K38 3066888 SCDC-CS075 K38 3066884 SCDC-CS076 K38 3066885 SCDC-CS077 K38 3066889 SCDC-CS078 K38 3062076 SCDC-CS079 K38 3062077 SCDC-CS080 K38 3070838 SCDC-CS081 K38 962550 SCDC-CS082 K38 3277463 SCDC-CS083 K38 3278029 SCDC-CS084 K38 3277462 SCDC-CS085 K38 3278031 SCDC-CS086 K38 4896421 Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details Place of Origin: China (Mainland) Parts Number:3067979 Engine Type:Diesel Part Name:CLAMP,V BAND Required:As You Need Perfermance:High Perfermance Warranty:6 Months Size:Standard Size   CLAMP,V BAND 3067979  Part Number 3067979 Part Name CLAMP,V BAND Brand Genuine / OEM Engine Type 3067979 Warranty 6 Months MOQ 1 Piece Payment Terms T/T, L/C, Paypal, Escrow, Western Union, etc. Delivery way DHL/FEDEX/UPS/TNT,By  Air, By Sea FOB Port Shanghai, Wuhan, Shenzhen, Guangzhou etc.    Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details Place of Origin: Chongqing, China (Mainland) Model Number: KTA19 Warranty: 1 Years Part Number :3046200 Part Name: Jaw Coupling Type:New Used on: KTA19 Diesel Engine Packing:Strong Carton Material:Plastic Size:standard   Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Details The thrust bearing 129900-02930 is a component designed to withstand axial loads in rotating machinery. It is commonly used in various applications such as engines, transmissions, pumps, and compressors. The thrust bearing helps to support and facilitate smooth rotation while minimizing friction and wear. Its durable construction ensures reliable performance and longevity in demanding operating conditions.   Place of Origin:China (Mainland) Model Number:4TNV94L engine Engine Type:Diesel Type:129900-02930 thrust washer 4TNV94L engine Engine:4TNV94L Gasket cylinder head:129906-01340 main bearing set:729900-02800 block assy, cylinder:729906-01560 seal,oil:129900-01780 pump assy, lub., oil:129900-32001 valve spring:129907-11120 cotter assy:27310-070001 camshaft assy:129907-14581 starter:123900-77010     For 4TNV94L  engine,wehave worked the following parts:   729907-01560 729907-22950 129900-25100 27310-070001 129907-53100 129900-02410 120130-22301 129150-25920 129907-11100 129907-59810 729900-02800 22252-000300 129900-32001 119625-11880 129907-59820 129900-02340 129900-23000 24-07301 129907-11341 129907-59830 129900-02930 129900-23910 22-40233 129907-11250 129907-59840 129900-02940 129900-23200 129907-11700 129907-11260 729946-51390 129907-01331 129900-23600 129907-11800 129907-11270 119653-77950 129982-01710 129900-23610 123907-11820 129907-11650 129900-77010 977770-01212 129920-21580 129907-11110 129150-11230 129423-77200 129902-21000 127410-21480 129907-11120 129907-11660 22-40233 129900-21200 129907-14581 119620-11180 129907-42000 22-45201 129907-22090 129150-02450 124160-11340 129916-44740 729907-92760 729907-22910 129900-14100 124950-11340 729946-53300 129907-01331 129907-22050 123900-25920 129907-11510 129937-53000 124160-11340   Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.      Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.      Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.    Contact Details:ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com WhatsApp/Wechat: +8618965520297    

Details Part number: 119810-02930 Model Number: SK20SR-3 3TNV82 Engine Type: Diesel Type: Other, Engine thrust bearing Part name: Thrust bearing Engine model: 3TNV82 Excavator model: SK20SR-3 Cylinder no: 3 cylinders Package:Standard export boxes Name Thrust bearing Condition New Used for excavator model SK20SR-3 Engine model 3TNV82 More series: 4BD1, 4BG1, 6BD1, 6BG1, 6SD1, 6WG1, 4LE1, 4LE2, 6RB1, 4JB1, 6HK1... Stock condition In stock Size STD Category Group Engine parts related products 1. Piston set 2. Liner 3. Piston ring 4. Main bearing 5. Connecting rod bearing 6. Trust washer 7. Full gasket kit 8. Water pump 9. Valve seal 10. Valve guide 11. Intake and exhaust valve 12. Turbocharger 13. Oil pump    Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.   Guarantee 1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible Supply the Details photos and Questions Descrption.   Contact Details: ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356

Description Model Number: 3968886 Part Name: Wiring Harness Model Number:  L375   Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.   Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.   Guarantee   1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible for the freight come-and-go,and the custom tax. 4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together. 5. To save the cost,pls send the item back without packing. 6. Pls provide the defective appearance and related invoice number.   Contact Details:   ADD::YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL::+86-592-7115297 Email: Sales@parts-machining.com Skype:Parts-machining WhatsApp::+8618965520297 Viber: :+8618965520297 QQ:1325401356 Wechat:1325401356

  Home > Diesel Engine Parts > Pressure Relief Valves > 3963808 Part #3963808 — Pressure Relief Valve CUMMINS PRESSURE RELIEF VALVE 3963808 — OEM REPLACEMENT The Cummins Engine Pressure Relief Valve 3963808 is a precision-engineered replacement component designed for ISC, ISL, QSC, and QSL diesel engine platforms. Manufactured by CHINA EVERLASTING PARTS CO., LIMITED, a professional high-quality engine parts and filters manufacturer, this valve delivers OEM-equivalent performance at a competitive Pressure Relief Valve Price point. Our facility specializes in air filters, oil filters, hydraulic filters, fuel water separators, and precision diesel engine components — with full OEM & ODM service capability. ✅ Cross Reference: This valve matches Cummins Pressure Relief Valve Cross Reference part number 3963808 and is fully interchangeable with OEM specifications for seamless installation. Product Features — Cummins Pressure Relief Valve 3963808 The Cummins Engine Pressure Relief Valve 3963808 is constructed using high-grade alloy steel and precision-machined internal components to ensure consistent pressure regulation under the most demanding diesel engine operating conditions. This replacement valve is engineered to match the exact dimensional tolerances and flow characteristics of the original Cummins part, providing a direct bolt-on installation without modification. Part Number: 3963808 Brand: Cummins Replacement (Aftermarket OEM Quality) Material: High-strength alloy steel body with hardened internal spring mechanism Operating Pressure Rating: Calibrated to OEM factory specifications Finish: Anti-corrosion zinc-nickel coating for extended service life Precision Fit: CNC-machined threads and sealing surfaces for leak-free installation Quality Control: 100% pressure-tested before shipment to ensure consistent performance Packaging: Individually sealed in anti-static protective packaging with holographic authenticity label Product Advantages — Why Choose Our OEM Pressure Relief Valve Compared to purchasing directly from authorized Cummins dealerships, our OEM Pressure Relief Valve offers a significant cost advantage without compromising quality. The Pressure Relief Valve Replacement Cost is typically 40–60% lower than genuine dealer pricing, making it an ideal choice for fleet operators, independent repair shops, and wholesale parts distributors looking to maximize their margins while providing reliable components to their customers. Competitive Factory-Direct Price: Eliminate middleman markups with our manufacturer-direct pricing model. Compare our Pressure Relief Valve Price with dealer quotes and save immediately. OEM & ODM Customization: We offer custom branding, private labeling, and design modifications to meet your specific market requirements. Your logo, your box, your specifications. Low Minimum Order Quantity (MOQ): Start with just 10 pieces to test the market. Ideal for retailers, distributors, and service shops building their inventory. 12-Month Warranty: Every valve is backed by a comprehensive 12-month warranty against manufacturing defects, giving you and your customers peace of mind. Fast Global Shipping: With established logistics partnerships, we deliver to North America, Europe, Southeast Asia, and beyond within 7–15 business days. Dedicated B2B Support: A dedicated account manager is assigned to every wholesale, distributor, and OEM client for streamlined communication and order processing. Customer Benefits — What This Means For Your Business When you source the Cummins Pressure Relief Valve 3963808 from China Everlasting Parts, you are not just purchasing a component — you are building a supply chain advantage that impacts your bottom line. Here is how our clients benefit: Lower Total Cost of Ownership Reduce your Pressure Relief Valve Replacement Cost by up to 50% while maintaining OEM-grade quality, directly improving your service margins and competitiveness. Reduced Engine Downtime A properly functioning Pressure Relief Valve prevents over-pressurization damage. Our valves ensure your customers' equipment stays operational longer. Flexible Scaling & Customization From 10-piece trial orders to full container loads with custom branding, our OEM Pressure Relief Valve program grows with your business. Product Specifications — Cummins Pressure Relief Valve 3963808 Parameter Specification Part Number 3963808 Part Type Pressure Relief Valve Brand Cummins Replacement (Aftermarket OEM Grade) Application Cummins ISC, ISL, QSC, QSL Diesel Engines Minimum Order Quantity (MOQ) 10 Pieces Material High-Strength Alloy Steel, Zinc-Nickel Coated Pressure Calibration OEM Factory Specification (Certified Test Report Available) Service OEM & ODM — Custom Branding, Private Label, Design Modifications Warranty 12 Months Against Manufacturing Defects Net Weight (per unit) Approx. 0.35 kg (0.77 lbs) Packaging Individual Anti-Static Sealed Bag + Protective Box (Custom Packaging Available) Lead Time 3–5 Business Days (Stock Orders) / 15–25 Business Days (Custom OEM Orders) Verified Customer Reviews — What Our B2B Clients Say ★ ★ ★ ★ ★ "We ordered 200 units of the 3963808 valve for our fleet maintenance program. The Cummins Pressure Relief Valve Cross Reference was spot-on — direct bolt-in, zero leaks, and our techs couldn't tell the difference from dealer parts. The Pressure Relief Valve Price saved us over $4,200 compared to our previous supplier. This is now our go-to source." — Michael T., Procurement Manager Diesel Parts Wholesale Co., Texas, USA ★ ★ ★ ★ ★ "As an independent repair shop, we rely on quality aftermarket parts to stay competitive. The Cummins Engine Pressure Relief Valve from China Everlasting Parts has exceeded our expectations. We've installed over 80 units without a single warranty claim. The OEM & ODM option also lets us offer our own branded line to customers." — Sandra R., Owner Heavy Equipment Maintenance LLC, Ohio, USA ★ ★ ★ ★ ★ "We service a mixed fleet of ISC and ISL engines across three states. The 3963808 valve has become our standard replacement part. The team at China Everlasting Parts provided detailed Pressure Relief Valve Change instructions and always ships within 48 hours. Their WhatsApp support is incredibly responsive — even late at night our time." — David L., Operations Director Fleet Truck Service Center, California, USA Pressure Relief Valve Change — Installation Guidance for Professionals Performing a Pressure Relief Valve Change on Cummins ISC, ISL, QSC, or QSL engines requires attention to torque specifications and proper sealing techniques. The 3963808 valve is designed for a straightforward swap-out process that experienced diesel technicians can complete in approximately 30–45 minutes. Here are the key steps we recommend: Ensure the engine is fully cooled and the system is depressurized before beginning any service work. Locate the pressure relief valve housing on the engine block — typically near the oil filter assembly or high-pressure fuel rail. Clean the surrounding area thoroughly to prevent debris from entering the system during valve removal. Remove the old valve using a properly sized socket. Inspect the mating surface for wear, gouges, or corrosion. Install the new Cummins Engine Pressure Relief Valve 3963808 with a new copper or composite sealing washer as applicable. Torque to OEM specifications (contact our support team for detailed torque charts for your specific engine model). Start the engine and verify proper oil/fuel pressure readings. Check for any leaks around the valve seat area. Note: Always consult the engine manufacturer's service manual for model-specific procedures. China Everlasting Parts provides free technical documentation and video support for all wholesale and distributor clients. Frequently Asked Questions (FAQ) 1. What is the minimum order quantity for the Cummins Pressure Relief Valve 3963808? The MOQ is 10 pieces. This low threshold allows retailers, repair shops, and small distributors to test the product quality in their local market before committing to larger volume orders. For custom OEM/ODM orders, the MOQ may vary based on branding and packaging requirements. 2. Is the 3963808 valve a genuine Cummins part or aftermarket? This is a high-quality aftermarket replacement manufactured by China Everlasting Parts Co., Limited. It is engineered to meet or exceed OEM performance specifications and is fully interchangeable with the genuine Cummins part number 3963808. We are not affiliated with or endorsed by Cummins Inc. — the term "Cummins" is used solely for compatibility reference purposes. 3. What is the typical Pressure Relief Valve Replacement Cost comparison? Genuine dealer pricing for this part typically ranges from $85–$140 USD per unit. Our factory-direct Pressure Relief Valve Price for bulk orders is significantly lower — often 40–60% less — depending on order volume and customization requirements. Contact our sales team for a detailed quotation based on your specific quantity. 4. Do you provide OEM/ODM services for this product? Yes, absolutely. As a professional manufacturer, we offer full OEM Pressure Relief Valve services including custom branding (laser engraving of your logo), private label packaging, custom color finishes, and design modifications to meet specific performance requirements. Our engineering team works closely with clients to develop custom solutions tailored to their market. 5. Which Cummins engines are compatible with this pressure relief valve? The 3963808 valve is specifically designed for Cummins ISC, ISL, QSC, and QSL diesel engine platforms. These engines are commonly found in medium-duty trucks, buses, construction equipment, marine vessels, and industrial power generation units. If you need a Cummins Pressure Relief Valve Cross Reference check for a different engine model, contact our technical support team. 6. How long does shipping take for international orders? Standard international shipping via air freight typically takes 7–12 business days to major markets in North America, Europe, and Southeast Asia. Express shipping options (DHL, FedEx, UPS) are available for 3–5 business day delivery. Sea freight is recommended for large volume orders to reduce shipping costs — transit time is approximately 25–35 days depending on destination port. Get a Quote — Contact Our B2B Sales Team Ready to place an order or request a sample of the Cummins Pressure Relief Valve 3963808? Our B2B sales representatives are available 7 days a week to answer your questions and prepare a detailed quotation. WhatsApp: +86 18965520297 WeChat: +86 18965520297 Email: Sales@parts-machining.com Company: CHINA EVERLASTING PARTS CO., LIMITED — Professional High Quality Filters ManufacturerAir Filter | Air Cleaner Filter | Air Dryer | Ventilation Filter | Breather Filter | Oil Filter | Fuel Filter | Hydraulic Filter | Fuel Water Separator | Air Oil Separator | Filters Assembly | Diesel Engine Parts © 2025 China Everlasting Parts Co., Limited. All rights reserved. | OEM & ODM Manufacturer of High-Quality Filters & Diesel Engine Components Product images are for reference only. Specifications are subject to change without prior notice. Please confirm details with our sales team before ordering.

Description Model Number: 3945967 Part Name: Plunger Model Number:  ISC ISL QSC QSL   Payment Term 1.We accept T/T,West Union,Money Gram, Cash. 2.All major Credit cards are accepted through secure payment processor ESCROW. 3:Begin to Ready the goods after receiving the 30% down payment, the balance payment before shipment.    Shipment Term 1. We Ship to Worldwide, except APO/FPO. 2: We cooperate with the lots air line, can send the goods by air with competitive freight. 3: For the urgently or small order, can send by express.    Guarantee   1. Guarantee:365 days after selled. 2. During guarantee,the items share free repairs or replacement. 3. Customer is responsible for the freight come-and-go,and the custom tax. 4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together. 5. To save the cost,pls send the item back without packing. 6. Pls provide the defective appearance and related invoice number.    Contact Details:   ADD: :YUZHOU DAXUE CHEN,XIKE TWON,TONG AN DISTRICT,XIAMEN CITY,CHINA TEL: :+86-592-7115297 Email: Sales@parts-machining.com Skype: Parts-machining WhatsApp: :+8618965520297 Viber: :+8618965520297 QQ: 1325401356 Wechat:1325401356