6245-31-1100 Crankshaft assembly Komatsu bulldozer spare parts

6245-31-1100 Crankshaft assembly Komatsu bulldozer spare parts

The Komatsu 6245-31-1100 crankshaft assembly is a core power component of the Komatsu bulldozer engine. Manufactured strictly according to Komatsu’s original dimensions, precision, and process standards, it is specifically designed for harsh operating conditions involving high temperature, high pressure, and continuous heavy loads. It is responsible for converting the linear motion of the piston into rotational power output, and is a key fundamental component ensuring strong engine power and smooth operation.

The 6245-31-1100 crankshaft assembly is made of high-quality alloy forged steel, undergoing forging, tempering heat treatment, precision grinding, dynamic balancing, and strengthening treatment. It boasts excellent overall rigidity, strong wear resistance, and outstanding fatigue resistance, capable of withstanding high-intensity impact loads for extended periods without easily deforming, cracking, or wearing. The main journals and connecting rod journals have high dimensional accuracy and a good surface finish, ensuring precise clearance with bearings and bushings, resulting in excellent lubrication and effectively reducing heat generation, abnormal noise, and wear. The crankshaft’s phase angles strictly match the original factory standards, ensuring uniform and stable power output and providing reliable power transmission and operational precision for the engine.

This product is suitable for harsh working environments such as mining, infrastructure construction, and earthmoving. It features high overall strength, good balance, and a long service life. It effectively restores engine power, reduces fuel consumption and vibration, and improves equipment reliability and uptime.

Core Technical Parameters

Product Model: 6245-31-1100
Product Name: Crankshaft Assembly
Applicable Models: Komatsu series bulldozers
Material: High-quality alloy forged steel
Process: Precision forging, heat treatment, high-precision grinding, dynamic balancing
Characteristics: High strength, high rigidity, wear resistance, high precision, smooth operation
Functions: Power conversion, torque output, core engine transmission

Core Advantages

Original factory standard high precision, good matching; high strength and fatigue resistance, long service life; excellent dynamic balance, smoother operation; reduced heat generation and abnormal noise, improving overall engine performance.

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6245-61-6710 Hose
6245-61-6270 Tube
6245-61-6430 Hose
6245-61-6440 Hose
6245-61-6450 Hose
6245-61-6970 Union
6245-11-9110 Elbow
6245-11-9430 Gasket
01020-11075 Bolt, Stainless
6152-51-5520 Spacer
6245-11-9120Tube
01020-11030 Bolt, Stainless
01010-E1060 Bolt
6261-11-9220 Plate
01010-E1055 Bolt
6245-11-9320 Bracket
6261-11-9870 Clamp
6261-11-9880 Clamp
6245-11-9180 Stay
6245-11-9210 Plate
6245-11-9220 Plate
6245-11-9440 Gasket
01010-E1270 Bolt
6245-11-9240 Gasket
PML160-13000 • Case Assembly, Gear
PML152-08601 • Cover Assembly
6261-51-9200 • Gear Assembly
6261-51-9230 • O-ring
6261-51-2140 • Valve
PML137-05901 • Spring
07002-22434 •O-ring
PML139-01700 • Plug
PML199-00210 • Bolt
6245-51-9100 Pump Assembly, Supply
07000-72110 O-ring
6245-51-9260 Plate
07043-70211 Plug

*For other spare parts procurement needs, please contact us!