4HK1 Connecting Rod Bearing | Isuzu Engine Parts | OEM Size | Diesel

Product Details

Product Overview

This high-precision Connecting Rod Bearing is specifically designed for the Isuzu 4HK1 diesel engine. As a critical component within the engine’s bottom end assembly, this bearing ensures the smooth and reliable rotation of the connecting rod on the crankshaft journal. Manufactured to OEM size specifications, it provides the exact tolerances required for optimal oil film clearance and load distribution.

Ideal for a wide range of heavy-duty applications including construction, industrial machinery, agricultural equipment, gensets, marine propulsion, and material handling systems, this bearing is a direct replacement part for maintaining engine performance. The part, branded under , is precision-engineered from Guangdong, China, to meet the rigorous demands of continuous operation.

Key Features & Benefits

• OEM Standard Dimensions: Manufactured to the exact OEM size specifications for the Isuzu 4HK1 engine, ensuring a direct, hassle-free replacement without the need for line boring or modification.
• Superior Load-Bearing Material: Constructed from high-strength, multi-layer aluminum or copper-lead alloy, providing excellent fatigue resistance and durability under high compression and combustion pressures.
• Enhanced Wear Resistance: Features a specialized overlay plating that reduces friction during initial start-up and provides long-term protection against scuffing and seizure.
• Precision Oil Clearance: Designed to maintain the precise oil film thickness required for effective hydrodynamic lubrication, reducing heat buildup and extending engine life.
• Rigorous Quality Control: Every batch undergoes a machinery test report and video outgoing inspection to verify dimensional accuracy, surface finish, and material integrity.

Technical Specifications

OEM Cross-Reference

This connecting rod bearing is a direct replacement for the following Isuzu genuine part numbers. Please verify your existing part number for exact fitment.

• Isuzu OEM: 8-98023-526-0
• Isuzu OEM: 8-98023-526-1
• Isuzu OEM: 1-87810-596-0
• Isuzu OEM: 1-87810-596-1

Note: Always cross-reference your old bearing part number with the list above. If your number is not listed, please contact our support team with your engine serial number for confirmation.

Compatibility

This connecting rod bearing is commonly used for the following Isuzu engine models and applications:

• Engine: Isuzu 4HK1 (4HK1-TC, 4HK1-TCC)
• Vehicle/Equipment Applications:
  • Construction: Excavators, Wheel Loaders
  • Industrial: Forklifts, Generators (Genset)
  • Agricultural: Tractors, Harvesters
  • Marine: Auxiliary engines, Pumps
  • Material Handling: Telehandlers, Cranes

Important Fitment Note: While this bearing is designed for the 4HK1 engine family, we recommend verifying the crankshaft journal diameter and rod big end bore to ensure correct clearance. This part is for standard size crankshafts only.

Global Supply & Distribution

As a specialized supplier of Isuzu engine components, we maintain a robust global supply chain to ensure fast and reliable delivery to B2B buyers worldwide.

• Major Markets: North America, Europe (EU), Southeast Asia, Middle East, Africa, and Oceania.
• Shipping Capabilities: We offer flexible logistics options including DDP (Delivered Duty Paid), FOB (Shenzhen/Guangzhou), CIF, and EXW.
• Delivery Speed: Stock items are dispatched within 24-48 hours. Express shipping (DHL, FedEx, UPS) typically arrives in 3-7 business days. Sea freight for bulk orders is available with 15-25 day transit times.
• Export Experience: Our team is experienced in international trade documentation, customs clearance, and compliance for industrial engine parts.

Quality Assurance

We are committed to supplying only high-quality replacement parts that meet or exceed original equipment specifications.

• Manufacturing Standards: Parts are produced in ISO 9001 certified facilities using precision CNC machining and advanced metallurgy.
• Testing: Each production batch undergoes a Machinery Test Report to verify hardness, tensile strength, and dimensional accuracy. A Video Outgoing Inspection is available upon request for full transparency.
• Warranty: This product comes with a 6-month warranty against manufacturing defects. Our after-warranty service includes online technical support to assist with troubleshooting and installation queries.

FAQ

Q1: How do I confirm this connecting rod bearing fits my Isuzu 4HK1 engine?
A: First, check the part number stamped on your old bearing. If it matches one of our OEM cross-reference numbers (e.g., 8-98023-526-0), it is a direct fit. If not, measure the crankshaft journal diameter. For a standard 4HK1, the journal diameter is typically 56mm. You can also send us a photo of your old bearing or your engine serial number, and our technical team will confirm compatibility.

Q2: What is the difference between standard size and undersize bearings?
A: This listing is for OEM Standard Size bearings. Standard bearings are used when the crankshaft journal is within factory specification. If your crankshaft has been reground or is worn beyond limits, you would require an undersize bearing (e.g., 0.25mm, 0.50mm). Undersize bearings have a thicker wall to compensate for the reduced journal diameter. Always use a micrometer to check your crankshaft before purchasing.

Q3: Do I need to replace the main bearings when installing new connecting rod bearings?
A: While it is not strictly mandatory, it is highly recommended best practice. Replacing both main bearings and rod bearings simultaneously ensures consistent oil pressure and clearance across the entire rotating assembly. If you only replace the rod bearings, be sure to check the main bearing clearance and condition. For a complete engine overhaul, we recommend a full bearing set.