Product Overview

This is a premium replacement Valve Tappet designed for Cummins 6L and 6LT series diesel engines. Engineered for durability and precise operation, it is an essential component for engine overhauls and repairs. We supply this critical part globally to support the construction, industrial, agricultural, power generation, marine, and material handling sectors with reliable aftermarket solutions.

Key Features & Benefits

• OEM-Spec Precision: Manufactured to exact OEM dimensions and tolerances for a perfect fit and reliable performance, ensuring seamless integration with your Cummins engine.
• Enhanced Durability: Constructed from high-grade materials to withstand the high-stress environment of diesel engines, providing excellent wear resistance and a long service life.
• Optimal Valve Timing: Ensures accurate valve actuation, which is crucial for maintaining engine efficiency, power output, and fuel economy.
• Comprehensive Quality Verification: Each part undergoes rigorous inspection, supported by machinery test reports and video outgoing-inspection records for your peace of mind.
• Global Logistics Ready: Packaged securely in plastic bags, boxes, and cartons for safe international shipping and storage.

Technical Specifications

OEM Cross-Reference

Primary OEM Number: 3965966

This part is a direct replacement for the original Cummins component bearing the same part number. Our OEM service ensures specifications are matched precisely for guaranteed compatibility.

Compatibility

This valve tappet is specifically designed for use in:

• Engine Models: Cummins 6L and 6LT series diesel engines.
• Primary Applications: This part is critical for engines used in a wide range of heavy-duty equipment, including:
  • Construction: Excavators, bulldozers, loaders.
  • Industry & Power Generation: Generator sets (Gensets), industrial power units.
  • Agriculture: Tractors, harvesters, and irrigation pumps.
  • Marine: Auxiliary and propulsion engines for vessels.
  • Material Handling: Forklifts, port cranes, and terminal tractors.

Global Supply & Distribution

We are a trusted supplier for B2B clients worldwide, specializing in efficient international logistics for automotive and industrial engine parts.

• Worldwide Shipping: We export to all major markets, including North America, Europe, the Asia-Pacific region, the Middle East, Africa, and South America.
• Fast Delivery Network: Consolidated shipping to major global ports and industrial hubs ensures timely delivery for your maintenance schedules and inventory needs.
• Export Expertise: Extensive experience in handling international documentation, customs clearance, and compliance for seamless cross-border trade.

Quality Assurance

Our commitment to quality ensures you receive a reliable product that meets professional repair standards.

• Manufacturing Standards: Produced in ISO-certified facilities using precision machining and quality-controlled materials.
• Rigorous Testing: Every batch is subject to dimensional checks and performance validation. Full machinery test reports are available upon request.
• Pre-Shipment Inspection: Video outgoing-inspection provides transparent verification of product condition before dispatch.
• Warranty Backed: This part is covered by a 6-month warranty against manufacturing defects, underscoring our confidence in its quality.

FAQ

Q: Is this valve tappet a direct fit for my Cummins 6LT engine?
A: Yes. This part is manufactured to the exact OEM specifications of part number 3965966, ensuring it is a direct, bolt-on replacement for Cummins 6L and 6LT engines without requiring modifications.

Q: What documentation is provided with the shipment?
A> We provide all necessary commercial invoices and packing lists. Upon request, we can also supply the machinery test report and a copy of the video outgoing-inspection for quality verification.

Q: Do you recommend replacing all valve tappets at once during an engine overhaul?
A> For optimal engine performance and longevity, it is a standard best practice to replace valve tappets in complete sets. This ensures uniform wear characteristics and consistent valve timing across all cylinders. We can supply the required quantity for a full engine set.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .