Product Details

Product Overview

This high-quality valve stem oil seal is specifically engineered for the Mitsubishi 6D17 diesel engine. As a critical component in preventing oil from entering the combustion chamber and controlling valve guide lubrication, this seal ensures optimal engine performance and longevity. Sourced from a leading manufacturer with years of export experience, this part is available for global shipping to major markets including North America, Europe, Southeast Asia, the Middle East, and Africa. It is the ideal direct replacement for worn or failed seals, helping to reduce oil consumption and eliminate blue smoke from the exhaust.

Key Features & Benefits

• Premium Material Construction: Manufactured from high-grade nitrile rubber (NBR) or fluorocarbon rubber (FKM/Viton) for exceptional heat and oil resistance, ensuring a long service life even under extreme operating temperatures.
• Precision Engineering: Designed to exact OEM specifications for a perfect fit on Mitsubishi 6D17 valve stems and guides, eliminating installation issues and premature failure.
• Superior Sealing Performance: Features a precisely designed lip profile that provides an optimal balance between oil control and valve stem lubrication, reducing friction and wear.
• Direct OEM Replacement: A perfect drop-in replacement part that meets or exceeds original equipment standards, restoring engine efficiency and reducing harmful emissions.
• Enhanced Durability: Built with an internal spring to maintain consistent sealing pressure over time, preventing leaks and extending the life of the valve train.

Technical Specifications

OEM Cross-Reference

This valve stem oil seal is a direct replacement for the following original equipment manufacturer (OEM) and reference numbers:

• Mitsubishi OEM: ME035723, ME994223
• Other Compatible Numbers: 6D17-001, 6D17-002 (for reference)

Note: Always verify your engine model and existing part number to ensure correct fitment.

Compatibility

This seal is specifically designed for the following engine and applications:

• Engine: Mitsubishi 6D17 (6-cylinder, direct injection diesel engine)
• Typical Applications:
  • Mitsubishi FH/FK/FM Series Trucks
  • Mitsubishi Heavy Duty Industrial and Construction Equipment (e.g., Excavators, Forklifts, Generators)
  • Marine engines based on the 6D17 platform
• Year Range: 1980s – 1990s (Production era for the 6D17 engine)

Global Supply & Distribution

We are a trusted supplier to the global automotive and industrial aftermarket. Our logistics network ensures fast and reliable delivery worldwide.

• Worldwide Shipping: We ship to all major ports and industrial centers via air, sea, and express courier (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America, Europe (EU & UK), Asia-Pacific (Japan, Korea, China, Australia), Middle East (UAE, Saudi Arabia, Qatar), Africa, and South America.
• Fast Delivery: Standard stock items are dispatched within 24-48 hours. Bulk orders are processed with priority.
• Export Experience: We have extensive experience in international trade, ensuring all documentation (commercial invoice, packing list, certificate of origin) is handled professionally.

Quality Assurance

We are committed to providing parts that meet the highest industry standards.

• Manufacturing Standards: All seals are produced in ISO 9001 certified facilities, ensuring consistent quality control.
• Material Testing: Raw materials are tested for tensile strength, elongation, and heat/ oil resistance before production.
• Dimensional Inspection: Each batch is subject to rigorous dimensional checks to ensure perfect fitment with OEM specifications.
• Warranty: We offer a standard 12-month warranty against manufacturing defects from the date of purchase.

FAQ

Q1: How do I know if my Mitsubishi 6D17 engine needs new valve stem seals?
A: Common symptoms include blue smoke from the exhaust on startup or during deceleration, increased oil consumption, and fouled spark plugs (if applicable). A compression test and leak-down test can help confirm if the issue is related to the valve seals rather than piston rings.

Q2: Can I install these seals without removing the cylinder head?
A: Yes, it is possible to replace valve stem seals without removing the cylinder head on the 6D17 engine. This is typically done using a valve spring compressor tool and a compressed air fitting to hold the valves in place. However, for a thorough job, especially if the engine has high hours, a full head removal is recommended to inspect valve guides and seats.

Q3: What is the recommended installation procedure for these seals?
A: First, ensure the valve stem and guide are clean and free of burrs. Lightly lubricate the inside of the new seal with clean engine oil. Use a proper valve seal installation tool (or a deep socket) to gently tap the seal onto the valve guide until it is fully seated. Do not use a hammer directly on the seal. Always replace seals in sets to ensure even wear and performance.

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 .