4D31 4D32 4D34 6D31 6D32 6D34 Connecting Rod Bushing for Mitsubishi Excavator Engine Pb-1807j

Product Details

Product Overview

This premium connecting rod bushing, identified by part number Pb-1807j, is a genuine component engineered for Mitsubishi diesel engines. Designed to support the critical interface between the connecting rod and piston pin, this bushing ensures precise alignment and reduces friction for optimal engine performance.

Commonly used in excavator applications, this bushing is compatible with a range of Mitsubishi engine models including the 4D31, 4D32, 4D34, 6D31, 6D32, and 6D34. It is also a suitable replacement for the 4BD1T engine model. As a genuine Japan-origin part, it meets rigorous original equipment standards for durability and reliability in heavy-duty construction equipment.

Key Features & Benefits

• Genuine Quality: Manufactured to original equipment specifications, ensuring a precise fit and consistent performance in Mitsubishi diesel engines.
• Enhanced Durability: Built from high-grade materials to withstand extreme pressures and temperatures, reducing wear and extending service life.
• Reduced Friction: Engineered surface finish minimizes friction between the connecting rod and piston pin, improving fuel efficiency and power output.
• Direct Fit Replacement: Designed as a direct drop-in replacement for worn bushings, saving time and labor during engine overhaul or repair.
• Long-Lasting Parts: As a “long-lasting part,” it offers extended intervals between replacements, lowering total cost of ownership for fleet operators.
• Easy Identification: Clearly marked with part number Pb-1807j for simple cross-referencing and inventory management.

Technical Specifications

OEM Cross-Reference

This connecting rod bushing (Pb-1807j) is a direct replacement for the following Mitsubishi engine models and part numbers:

• Mitsubishi 4D31 (Engine Series)
• Mitsubishi 4D32 (Engine Series)
• Mitsubishi 4D34 (Engine Series)
• Mitsubishi 6D31 (Engine Series)
• Mitsubishi 6D32 (Engine Series)
• Mitsubishi 6D34 (Engine Series)
• Isuzu 4BD1T (Engine Model – Cross-Compatible)

Note: Always verify compatibility with your specific engine serial number and connecting rod specification before installation.

Compatibility

This connecting rod bushing is commonly used for the following applications:

• Engine Models: Mitsubishi 4D31, 4D32, 4D34, 6D31, 6D32, 6D34, and Isuzu 4BD1T
• Equipment Type: Excavators, construction machinery, and industrial diesel engines

Fitment is inferred based on engine model compatibility. Please verify with your equipment manufacturer’s specifications for exact fitment.

Global Supply & Distribution

We offer worldwide shipping capabilities to meet the demands of international B2B buyers. Our logistics network supports fast delivery to major ports and industrial centers across:

• North America: Los Angeles, Houston, Chicago, Toronto, Vancouver
• Europe: Rotterdam, Hamburg, Antwerp, London, Dubai (Jebel Ali)
• Asia-Pacific: Singapore, Shanghai, Tokyo, Sydney, Busan
• Middle East & Africa: Dubai, Jeddah, Lagos, Nairobi, Cape Town
• South America: Santos, Buenos Aires, Callao, Valparaíso

With export experience and international trade compliance, we ensure smooth customs clearance and reliable delivery for orders of all sizes. Our minimum order quantity is just 1 piece, making it easy to source genuine parts for maintenance, repair, or inventory stocking.

Quality Assurance

• Manufacturing Standards: Produced in Japan under strict quality control processes that meet or exceed original equipment specifications.
• Warranty: Each bushing comes with a 3-month warranty against manufacturing defects, providing peace of mind for your purchase.
• Testing Procedures: Components undergo dimensional inspection, material hardness testing, and surface finish verification to ensure consistent quality.
• After Warranty Support: Video technical support is available to assist with installation guidance and troubleshooting after the warranty period.

FAQ

Q: How do I verify if this connecting rod bushing (Pb-1807j) fits my Mitsubishi 4D34 engine?
A: Check your engine’s serial number and connecting rod part number. The Pb-1807j bushing is designed for the 4D34 series, but we recommend measuring the inner diameter of your connecting rod small end (typically 30-35mm for these engines) and cross-referencing with your OEM bushing part number. If in doubt, contact our team with your engine details for confirmation.

Q: What is the recommended installation procedure for this bushing?
A: Installation should be performed by a qualified diesel mechanic. The bushing is press-fit into the connecting rod small end. Use a properly sized driver or arbor press to avoid distortion. After installation, ensure the bushing is honed to the correct piston pin clearance (typically 0.02-0.05mm for Mitsubishi engines). Over-tightening or misalignment during installation can cause premature wear. Refer to your engine service manual for specific torque and clearance specifications.

Q: Can this bushing be used in high-hour excavator engines?
A: Yes, this genuine bushing is ideal for engine overhauls and rebuilds in high-hour excavators. When replacing connecting rod bushings, we recommend also inspecting the piston pin, connecting rod, and crankshaft for wear. Replace any worn components simultaneously to ensure optimal engine performance and longevity. The 3-month warranty covers manufacturing defects, but proper installation and maintenance are key to achieving long service life.