Product Overview

This is a premium-quality, Japan-made camshaft bearing set designed for the Isuzu 4HG1 diesel engine. Engineered for durability and precise fitment, this C804a / SH-1640a STD set is an essential component for engine rebuilds and overhauls. We specialize in global B2B supply, serving major markets across North America, Europe, Asia-Pacific, and the Middle East with reliable shipping and export compliance.

Key Features & Benefits

• Premium Japanese Manufacturing: Produced to exacting standards for superior material quality and dimensional accuracy.
• Optimal Engine Performance: Ensures proper oil clearance and support for the camshaft, reducing friction and wear for smooth engine operation.
• Extended Service Life: High-durability bearings contribute to the longevity of the entire valve train assembly.
• Precision Fit (STD Size): Manufactured to standard OEM specifications for a perfect, hassle-free installation.
• Reliable Supply for Workshops: Ideal for engine rebuilders, heavy-duty repair shops, and parts distributors requiring consistent, high-quality inventory.

Technical Specifications

OEM Cross-Reference

This cam bearing set is a direct replacement for the following OEM part numbers:

• Isuzu: 8-94185-277-0, 8-94185-278-0 (Consult specific engine serial for exact application)
• Primary Part Numbers: C804a, SH-1640a

Note: Always verify the part number against your engine’s specific serial number or existing bearing set for confirmation.

Compatibility

This bearing set is specifically designed for the Isuzu 4HG1 diesel engine. This engine is commonly found in:

• Isuzu Forward / Elf trucks (specific model years and configurations)
• Isuzu Giga trucks (certain models)
• Various industrial and generator applications utilizing the 4HG1 power unit.

Important: Compatibility can vary. We strongly recommend confirming the engine model and serial number before purchase.

Global Supply & Distribution

We are a trusted partner for automotive parts distributors and workshops worldwide. Our logistics network ensures efficient delivery to key industrial hubs and ports.

• Worldwide Shipping: We export to all major regions, including North America (USA, Canada, Mexico), Europe (UK, Germany, Benelux), Asia-Pacific (Australia, Singapore, Japan), and the Middle East (UAE, Saudi Arabia).
• Fast Delivery: Consolidated sea freight and air freight options available for fast delivery to major logistics centers.
• Export Expertise: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is provided for smooth customs clearance.
• Bulk & Wholesale: Competitive pricing for container loads (FCL) and pallet orders (LCL) tailored for B2B clients.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities adhering to strict Japanese quality control protocols.
• Material Certification: Raw materials are sourced from certified suppliers to ensure consistent performance.
• Dimensional Inspection: Each bearing is manufactured to precise tolerances and undergoes rigorous checks for ID/OD and wall thickness.
• Warranty: Backed by a standard warranty against manufacturing defects. Specific terms are provided with the commercial invoice.

FAQ

Q1: Is this bearing set suitable for a performance rebuild, or just standard repair?
A1: This Japan-made STD size set is manufactured to original equipment specifications, making it an excellent choice for both standard overhauls and performance rebuilds where maintaining OEM clearances is critical for reliability.

Q2: How do I confirm this is the correct bearing set for my specific 4HG1 engine?
A2: The most reliable method is to cross-reference the part number stamped on your old cam bearings (C804a or SH-1640a) or use your engine’s full serial number. Our technical team can assist with verification based on your engine details.

Q3: What are the critical installation steps to ensure proper function of these bearings?
A3: Proper installation is key. Ensure the engine block bearing saddles are clean and undamaged. Correct alignment and proper oil hole alignment are mandatory. Use a suitable bearing driver tool and always follow the engine manufacturer’s specified torque sequence and values for the bearing caps. Proper lubrication during initial startup is crucial.

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 .