Genuine 1-12271072-1 Connecting Rod Bearing for Isuzu 6WG1 Excavator ZX450-3

Product Details

Product Overview

This high-quality connecting rod bearing, identified by the genuine part number 1-12271072-1 (also referenced as 1122710721), is a critical internal engine component specifically designed for the Isuzu 6WG1 and 6WG1TC diesel engines. As a genuine OEM component, it ensures the precise tolerances required for optimal crankshaft clearance and oil film retention.

This bearing is commonly utilized in heavy-duty excavators, most notably the Hitachi ZX450-3 series. Given the critical nature of engine bottom-end components, using a genuine bearing is essential to prevent oil pressure loss, rod knock, and catastrophic engine failure. This part is sourced directly from Japan, ensuring it meets the original manufacturing specifications for durability and performance.

Key Features & Benefits

• Genuine OEM Quality: Manufactured to the exact specifications of the original equipment, guaranteeing a perfect fit and consistent performance for your 6WG1 engine.
• Long-Lasting Durability: Engineered with high-grade materials to withstand extreme loads and temperatures, reducing wear on the crankshaft journal and extending engine life.
• Precise Fit Confidence: The part number 1-12271072-1 ensures a direct replacement without modification, eliminating guesswork and installation errors.
• Critical Oil Clearance: Designed to maintain the precise oil clearance necessary for proper lubrication, preventing seizure and reducing friction in the connecting rod assembly.
• Reduced Downtime: A genuine bearing minimizes the risk of premature failure, keeping your excavator operational and reducing the cost of unscheduled maintenance.
• Japanese Engineering: Sourced from Japan, this component adheres to strict quality control standards synonymous with Japanese heavy equipment manufacturing.

Technical Specifications

OEM Cross-Reference

This connecting rod bearing is an exact genuine OEM replacement. The following part numbers are cross-referenced for your convenience:

• 1-12271072-1 (Primary OEM Number)
• 1122710721 (Alternate Format)

Note: Always verify the exact part number stamped on your old bearing or refer to your engine parts manual to ensure correct selection.

Compatibility

This bearing is specifically designed for the Isuzu 6WG1 engine family and is commonly used for the following applications:

• Engine Models: Isuzu 6WG1, 6WG1-TC
• Excavator Models: Hitachi ZX450-3, ZX470-3, ZX490-3

Disclaimer: While this part is commonly used for the models listed above, we recommend confirming fitment with your equipment’s serial number or parts catalog to ensure compatibility.

Global Supply & Distribution

We offer reliable worldwide shipping for this genuine connecting rod bearing, ensuring your heavy equipment stays operational regardless of location. Our logistics network supports fast delivery to major industrial hubs and ports across the globe.

• North America: Rapid delivery to the US, Canada, and Mexico for mining and construction sites.
• Europe: Efficient shipping to Germany, the UK, Netherlands, and France.
• Asia-Pacific: Direct sourcing from Japan with fast delivery to Australia, Indonesia, and Singapore.
• Middle East & Africa: Supply to UAE, Saudi Arabia, and South Africa for oil & gas and mining operations.
• South America: Reliable export to Brazil, Chile, and Peru.

We are experienced in international trade documentation and compliance, ensuring a smooth customs clearance process for B2B buyers.

Quality Assurance

This product is a genuine OEM component, meaning it has passed the stringent quality control standards set by the original engine manufacturer. It is not an aftermarket or re-manufactured part.

• Manufacturing Standard: OEM Specifications (Japanese Industrial Standards).
• Warranty: 3-month warranty against manufacturing defects.
• Testing: Components are tested for dimensional accuracy, hardness, and material composition during the manufacturing process.
• Condition: 100% New and unused, packaged to prevent damage during transit.

FAQ

Q: How do I confirm that part number 1-12271072-1 fits my engine?
A: We recommend checking the part number stamped on your old connecting rod bearing. This bearing is specifically designed for the Isuzu 6WG1 engine. If your engine model is 6WG1 or 6WG1-TC, this is the correct genuine bearing. For excavator models, it is commonly used in the Hitachi ZX450-3 series, but an engine model check is the most reliable method.

Q: What is the risk of using a non-genuine connecting rod bearing?
A: Non-genuine bearings often have inconsistent tolerances and inferior material quality. This can lead to incorrect oil clearance, causing oil starvation, overheating, and eventual seizure of the connecting rod to the crankshaft. Using a genuine 1-12271072-1 bearing ensures the precise fit and material hardness required for the high-stress environment of a 6WG1 diesel engine, preventing catastrophic failure and expensive rebuilds.

Q: Do I need to replace the connecting rod bolts when installing this bearing?
A: Yes. We strongly recommend replacing the connecting rod bolts with new OEM bolts whenever you remove the connecting rod cap. Connecting rod bolts are torque-to-yield fasteners and become stretched after initial use. Reusing them can lead to incorrect clamping force, bearing spin, and rod failure. Always follow the manufacturer’s torque and angle specifications for your 6WG1 engine during installation.