Product Details

Product Overview

This high-quality Diesel Valve Seat is specifically manufactured for the Mitsubishi 4D56U engine. Designed as an OEM size repair part, it provides a precise, direct replacement for worn or damaged valve seats. Ideal for engine rebuilders and maintenance workshops, this component ensures a proper seal for the intake/exhaust valves, restoring engine compression and performance. We ship globally, serving major markets including North America, Europe, Southeast Asia, and the Middle East.

Key Features & Benefits

• OEM Specification: Manufactured to match original Mitsubishi dimensions and material hardness for a perfect fit and long service life.
• High Durability: Constructed from wear-resistant alloy steel to withstand the high temperatures and pressures of diesel combustion.
• Restores Engine Performance: Replacing worn valve seats helps eliminate compression loss, reduces blow-by, and improves fuel efficiency.
• Precision Engineering: Machined to tight tolerances for a secure interference fit in the cylinder head.
• Direct Replacement: “New” part, ready to install. No modifications required for standard cylinder head reconditioning.

Technical Specifications

OEM Cross-Reference

This valve seat is designed as a direct replacement for the original Mitsubishi parts. While a specific Mitsubishi part number is not always listed for valve seats (as they are often sized for the cylinder head), this part is manufactured to the standard OEM specifications for the 4D56U engine. It is compatible with standard cylinder head reconditioning procedures for this engine family.

• Engine Family: Mitsubishi 4D56 / 4D56U
• Application: Standard repair/replacement part for cylinder head rebuilds.

Compatibility

• Engine: Mitsubishi 4D56U (Turbo Diesel & Naturally Aspirated variants)
• Vehicle Applications (Common):
  • Mitsubishi Pajero / Montero (2nd & 3rd Gen)
  • Mitsubishi L200 / Strada / Triton
  • Mitsubishi Delica
  • Mitsubishi Canter (light truck)
  • Various industrial and marine applications using the 4D56U engine.
• Note: This is an engine internal part. Always verify cylinder head specifications and seat dimensions before installation.

Global Supply & Distribution

We specialize in the global supply of diesel engine components. Our logistics network ensures fast and reliable delivery to major ports and industrial centers worldwide.

• Worldwide Shipping: We ship to all continents via sea, air, and express courier (DHL, FedEx, UPS).
• Major Markets: Strong presence in North America, Europe, Southeast Asia (Thailand, Indonesia, Philippines), the Middle East (UAE, Saudi Arabia), Africa, and Oceania.
• Reliable Delivery: Efficient order processing and tracking provided for all international orders.
• Export Compliance: Experienced in international trade documentation and customs clearance.

Quality Assurance

• Manufacturing Standard: Produced in ISO 9001 certified facilities.
• Material Integrity: Sourced from high-quality alloy steel to resist heat and wear.
• Precision Check: Each batch is inspected for dimensional accuracy (inner diameter, outer diameter, and seat angle).
• Warranty: Standard warranty against manufacturing defects. Please contact us for specific warranty terms.

FAQ

Q1: Is this valve seat a direct fit for my Mitsubishi 4D56U engine?
A: Yes, this is an OEM size valve seat designed for the 4D56U engine. However, valve seats are interference-fit parts that must be installed by a qualified machinist during a cylinder head rebuild. The cylinder head must be machined to accept the new seat. You should also verify the specific dimensions (OD, ID, height) against your original part to ensure compatibility.

Q2: What is the difference between an intake and exhaust valve seat? Is this for both?
A: Intake and exhaust valve seats often have different material compositions to handle different thermal loads. This part is a general “Valve Seat” for the 4D56U. It is crucial to confirm with your supplier if this specific seat is for the intake or exhaust valve, or if it is a universal type for both. For a full rebuild, you may need to order a set that includes both intake and exhaust seats.

Q3: Can I install this valve seat myself?
A: No. Installing a valve seat requires specialized tools and machinery. The process involves heating the cylinder head, pressing the new seat into a machined recess, and then cutting/grinding the new seat to the correct angle to match the valve face. This must be done by a professional engine machine shop to ensure a perfect seal and prevent the seat from loosening during engine operation.

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 .