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High-Quality 4D105-5 Overhaul Kit for Komatsu S4D105-5 Engines
OEM: 6137-31-2112, 6137-32-2010 | Premium Komatsu Engine Parts
Product Overview
Premium 4D105-5 Excavator Engine Overhaul Kit - the ultimate solution for restoring peak performance, reliability, and durability to your Komatsu 4D105-5 engine. This comprehensive overhaul rebuild kit contains all essential components needed for a full engine rebuild, eliminating the hassle of sourcing individual parts and minimizing equipment downtime.
Engineered specifically for heavy-duty construction, excavation, and earthmoving applications, our overhaul kit meets or exceeds OEM specifications, ensuring perfect fit and long-lasting performance for your Komatsu equipment.
OEM-quality components matching genuine Komatsu engine parts standards
Restores lost engine power, improves compression, and reduces oil consumption
Complete kit includes all critical 4D105-5 engine parts for full rebuild
Saves time and money compared to purchasing components separately
Built for heavy-duty durability in harsh construction, mining, and industrial environments
Extends engine service life and reduces unplanned downtime
Easy to install for professional workshops and on-site maintenance
Kit Components & Specifications
Component Name
OEM Part Number
Quantity
Material
Compatibility
Overhaul Gasket Set
6137-32-2110, 6137-32-2010
1 Set
High-Temperature Resistant Rubber & Metal
4D105-5, S4D105-5 Series Engines
Main Bearing Set (Standard Size)
6137-31-2112
1 Set
High-Strength Alloy Steel
4D105-5, S4D105-5 Series Engines
Connecting Rod Bearing Set (Standard Size)
6137-31-2112
1 Set
Chrome Plated Alloy
4D105-5 Series Engines
Piston Set (Standard Size)
6136-32-2120
4 Pcs
High-Quality Aluminum Alloy
4D105-5, S4D105-5 Series Engines
Piston Ring Set (Standard Size)
6137-32-2110
4 Sets
Cast Iron & Steel
4D105-5, S4D105-5 Series Engines
Cylinder Liner (Semi-Finished)
6136-32-2120
4 Pcs
High-Density Cast Iron
4D105-5, S4D105-5 Series Engines
Thrust Bearing
6137-31-2112
1 Set
Alloy Steel
4D105-5 Series Engines
Intake & Exhaust Valves
6137-32-2110
4 Pcs Each (8 Total)
Heat-Resistant Steel
4D105-5, S4D105-5 Series Engines
Valve Guides & Seats
6137-32-2010
4 Sets Each
Cast Iron & Bronze
4D105-5, S4D105-5 Series Engines
Compatibility Notes
This 4D105-5 overhaul kit is 100% compatible with Komatsu 4D105-5 and S4D105-5 series engines, as well as the corresponding Komatsu motor graders, dozers, and excavators listed above. The semi-finished cylinder liners require professional machining before installation to ensure precise fit and optimal engine performance. We recommend verifying your engine serial number and equipment model before purchase to confirm compatibility.
Quality Assurance
We prioritize quality and reliability, with each component undergoing rigorous inspection and testing to meet OEM standards. Our 4D105-5 engine rebuild kit offers a cost-effective alternative to genuine Komatsu parts without compromising on quality, helping reduce maintenance costs while extending your equipment's service life.
As a trusted Komatsu engine parts supplier, we provide fast delivery and responsive customer support, ensuring you get the overhaul parts needed to keep your equipment running smoothly.
