Product Details

Product Overview

We are a professional supplier of the 490BT Valve Seat, specifically designed for Xinchai engine series. This high-performance component is a critical part of the cylinder head assembly, ensuring a gas-tight seal for optimal combustion efficiency. Our valve seats are manufactured to meet or exceed OEM specifications, providing reliable service in demanding environments. We offer global shipping to major markets including North America, Europe, Asia-Pacific, the Middle East, and Africa, ensuring fast delivery to industrial centers and ports worldwide.

Key Features & Benefits

• Superior Material: Crafted from high-strength alloy steel, offering exceptional resistance to wear, heat, and corrosion for extended service life.
• Precision Engineering: Manufactured with tight tolerances (±0.02mm) to ensure a perfect fit and optimal valve sealing, reducing gas leakage and improving fuel economy.
• Enhanced Durability: Designed to withstand extreme combustion pressures and temperatures, minimizing the risk of valve seat recession and failure.
• Direct Replacement: A perfect OEM replacement part, requiring no modifications for installation, saving time and labor costs.
• Rigorous Testing: Each valve seat undergoes hardness, dimensional, and pressure testing to guarantee consistent quality and performance.

Technical Specifications

OEM Cross-Reference

This 490BT valve seat is a direct replacement for the following OEM part numbers:

• Xinchai OEM: 490BT-1003011, 490BT-1003012
• Compatible Models: Fits all Xinchai 490BT series diesel engines.

Note: For exact fitment, please verify your engine model and OEM part number before purchasing. Contact us for technical support if needed.

Compatibility

• Engine Models: Xinchai 490BT, 490B, 490Q (DI) series
• Vehicle Applications: Agricultural tractors, forklifts, small construction machinery, and industrial generators.
• Year Range: 2000-Present (for most 490BT variants)

Global Supply & Distribution

We are a trusted supplier in the global diesel engine parts market, offering:

• Worldwide Shipping: Reliable logistics via sea, air, and express couriers (DHL, FedEx, UPS).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (China, India, Australia, Indonesia), Middle East (UAE, Saudi Arabia), and Africa (Nigeria, South Africa).
• Fast Delivery: Stock available for immediate dispatch to major ports (Shanghai, Ningbo, Shenzhen) and industrial hubs.
• Export Experience: Over 10 years in international trade, fully compliant with customs and quality standards.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities, ensuring consistent quality control.
• Testing Procedures: Each batch undergoes dimensional inspection, hardness testing (Rockwell), and leak testing to guarantee performance.
• Warranty: 12-month warranty against manufacturing defects. We offer replacement or refund for any quality issues.

FAQ

Q1: Is this valve seat a direct fit for my Xinchai 490BT engine?
A: Yes, this valve seat is designed as a direct OEM replacement for the Xinchai 490BT engine series. It matches the original specifications for inner diameter, outer diameter, and height, ensuring a seamless installation without modifications. We recommend verifying your engine model (e.g., 490BT, 490B) before ordering.

Q2: What is the recommended installation procedure for this valve seat?
A: Installation should be performed by a qualified mechanic. Typically, the old valve seat is removed using a puller or by machining. The new seat should be pressed into the cylinder head with a suitable driver, ensuring it is seated squarely. After installation, a valve grind or lapping is recommended to ensure a perfect seal. Always follow the engine manufacturer’s service manual for torque specifications and procedures.

Q3: How can I ensure the longevity of this valve seat in my application?
A: To maximize service life, use high-quality engine oil and maintain proper oil change intervals. Ensure the valve guide clearance is within spec, as worn guides can cause premature seat wear. Avoid excessive engine overheating and use the correct fuel grade. Regular valve clearance adjustments (if applicable) will also help maintain optimal performance and prevent seat recession.

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 .