Genuine 8-98121309-0 8981213090 Connecting Rod Bushing for Isuzu 4HF1 4HG1 6HH1 Truck Engine

Product Details

Product Overview

This is a genuine, new connecting rod bushing designed for specific Isuzu diesel engine models. The part carries the OEM number 8-98121309-0 (also referenced as 8981213090) and is a critical component for maintaining precise rod-to-crankpin clearance and reducing friction in high-torque applications.

Originally sourced from Japan, this bushing is commonly used for the Isuzu 4HF1, 4HG1, and 6HH1 engine platforms. These engines are typically found in Isuzu FRR, FSR, and other medium-duty truck chassis. While fitment is inferred based on the model numbers provided, buyers should verify compatibility with their specific engine serial number to ensure a perfect match.

Key Features & Benefits

• Genuine Quality: Sourced as a new, genuine component from Japan, ensuring the correct metallurgy and dimensional tolerances required for Isuzu engines.
• Exact Part Identification: Clearly marked with OEM numbers 8-98121309-0 and 8981213090, eliminating guesswork during procurement.
• Long-Lasting Performance: Designed for longevity in heavy-duty truck applications, reducing the risk of premature bearing failure and connecting rod damage.
• Reduced Friction: Precision-machined surface finish minimizes friction between the connecting rod and piston pin, improving overall engine efficiency.
• Cost-Effective Maintenance: Replacing the bushing during an engine overhaul is a standard practice that prevents costly crankshaft or rod replacement.
• Low MOQ: Available with a minimum order quantity of just 1 piece, ideal for both single engine rebuilds and stock replenishment.

Technical Specifications

OEM Cross-Reference

This connecting rod bushing is directly cross-referenced to the following OEM numbers:

• Isuzu OEM: 8-98121309-0
• Isuzu OEM (Alternate Format): 8981213090

No other alternative aftermarket numbers are provided. For absolute certainty, compare the dimensions of your original bushing (inner diameter, outer diameter, and width) against this genuine unit.

Compatibility

This part is commonly used for the following engine and vehicle applications:

• Engine Models: Isuzu 4HF1, Isuzu 4HG1, Isuzu 6HH1
• Vehicle Applications: Isuzu FRR, Isuzu FSR, and other medium to heavy-duty Isuzu trucks utilizing these engine platforms.
• Note: The 6HH1 engine is a 6-cylinder, while the 4HF1/4HG1 are 4-cylinder. While the same bushing part number is listed for all three, double-check your engine block type to ensure the quantity required per engine is correct.

Global Supply & Distribution

We offer worldwide shipping capabilities to support international B2B buyers. Our distribution network covers major markets including:

• North America: Fast delivery to industrial hubs in the USA, Canada, and Mexico via air and sea freight.
• Europe: Reliable shipping to ports in Rotterdam, Hamburg, and Antwerp, as well as inland express services.
• Asia-Pacific: Direct service to Japan, Australia, Singapore, and the Middle East (Dubai).
• Africa & South America: Experienced in handling customs documentation and logistics to key ports in Nigeria, Kenya, Chile, and Brazil.

All shipments are processed promptly upon payment receipt, with tracking information provided for every order.

Quality Assurance

Each connecting rod bushing is sourced as a genuine, new component to ensure it meets the original equipment manufacturer’s specifications for the Isuzu 4HF1, 4HG1, and 6HH1 engines.

• Manufacturing Origin: Japan
• Warranty: 3 months against manufacturing defects.
• Testing: Parts are visually inspected and dimensionally verified before shipping to ensure they match the OEM profile.
• After Warranty Service: Video technical support is available to assist with installation queries or troubleshooting.

FAQ

Q1: Is this bushing a press-fit or a slip-fit installation?

This connecting rod bushing is typically a press-fit component. It requires the use of a properly sized arbor press or bushing driver tool to install it into the small end of the connecting rod. After installation, the inner diameter may need to be honed to achieve the correct clearance with the piston pin. We recommend consulting the Isuzu service manual for your specific engine model (4HF1, 4HG1, or 6HH1) for exact installation torque and clearance specifications.

Q2: Will this bushing fit both the 4-cylinder (4HF1) and 6-cylinder (6HH1) engines?

Based on the OEM part number 8-98121309-0, this bushing is listed as compatible with the 4HF1, 4HG1, and 6HH1 engines. However, the number of bushings required per engine will differ. You will need 4 bushings for a 4-cylinder engine and 6 bushings for a 6-cylinder engine. We strongly advise measuring the outer diameter of your original bushing to confirm it matches this part before purchasing a full set.

Q3: What is the typical lifespan of this connecting rod bushing?

As a genuine component, the lifespan is directly tied to the engine’s oil quality, maintenance schedule, and operating load. Under normal conditions in a well-maintained Isuzu truck engine, a connecting rod bushing should last for several hundred thousand kilometers. However, it is considered a wear item and should be replaced during any major engine overhaul or if you notice knocking sounds from the lower engine block. Regular oil analysis can help detect elevated copper or lead levels, which indicate bushing wear.