Product Overview

This premium crankshaft bearing set is engineered for the ISUZU 4HF1 diesel engine, a cornerstone of commercial vehicle fleets worldwide. As a leading supplier to the global automotive aftermarket, we provide reliable engine components with direct shipping to major industrial hubs across North America, Europe, the Asia-Pacific region, and the Middle East. This bearing set is a critical replacement part designed to restore engine performance and longevity.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal oil clearance, ensuring smooth crankshaft rotation and reduced friction.
• Enhanced Durability: Constructed from high-grade, wear-resistant materials to withstand extreme pressures and temperatures within the engine block, extending service intervals.
• Optimal Performance: Maintains proper oil film strength for consistent lubrication, protecting the crankshaft journal and preventing costly engine seizures or failures.
• Complete Set Solution: Includes all necessary bearings for a full engine rebuild, ensuring uniform quality and compatibility across all bearing positions.
• Global Compliance: Produced in facilities adhering to international quality management standards, suitable for demanding commercial applications in diverse climates and operating conditions.

Technical Specifications

OEM Cross-Reference

This bearing set directly replaces the following OEM and aftermarket part numbers, ensuring broad compatibility and easy sourcing for workshops worldwide.

• Primary Part No.: M801H
• ISUZU Part No.: NPR66
• Common Aftermarket Reference: 8-98023-526-0 (Verify for specific kit configurations)

Compatibility

This crankshaft bearing set is specifically designed for the ISUZU 4HF1 turbo-diesel engine. This engine is commonly found in a range of ISUZU commercial vehicles, including:

• ISUZU NPR / NQR / NRR Truck Series (with 4HF1 engine)
• ISUZU FSR / FTR Truck Series (with 4HF1 engine)
• Various bus and industrial generator applications powered by the 4HF1 platform.

Note: Always verify the specific engine model and serial number before purchase. Compatibility is primarily for vehicles manufactured from the late 1990s through the 2000s equipped with the 4HF1 engine.

Global Supply & Distribution

We specialize in the international export of heavy-duty engine components. Our streamlined logistics network ensures efficient delivery to key markets:

• Worldwide Shipping: We ship via air and sea freight from Asia to global destinations, with consolidated container options for bulk orders.
• Major Markets Served: We regularly supply distributors and workshops in North America (USA, Canada, Mexico), the European Union, Australia, Southeast Asia, Africa, and the Middle East.
• Fast Port Delivery: Priority routing to major ports like Los Angeles, Rotterdam, Hamburg, Sydney, Dubai, and Singapore.
• Export Expertise: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is prepared to full international trade compliance standards for smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Components are produced using advanced machining and quality control processes to meet or exceed original dimensional and performance specifications.
• Rigorous Testing: Bearings undergo material hardness testing, dimensional accuracy checks, and surface finish analysis to ensure reliability.
• Warranty: Backed by a standard warranty against manufacturing defects. Specific warranty terms are provided with the commercial invoice.

FAQ

Q1: Is this a complete set for a full 4HF1 engine rebuild?
A1: Yes, this M801H / NPR66 set typically includes all required main bearings and connecting rod bearings needed for a complete crankshaft installation on an ISUZU 4HF1 engine. Please confirm the exact contents with your sales representative for your specific rebuild kit requirements.

Q2: Do I need to machine the crankshaft or block when installing these bearings?
A2: Installation of replacement bearings requires precise measurement. Always measure the crankshaft journal diameters and the main bearing bore diameters in the engine block to determine the correct bearing size (standard or undersize). If journals are worn beyond specification, crankshaft regrinding and corresponding undersize bearings will be necessary.

Q3: Are these bearings suitable for high-mileage or performance applications?
A3: These are OEM-quality bearings designed for the standard operating parameters of the ISUZU 4HF1 engine. They provide excellent durability for standard commercial use. For severe-duty or performance-enhanced engines, consulting with an engine specialist for application-specific recommendations is advised.

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 .