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Komatsu 6745-31-2140 Pin Piston
Regular price $20.99 USDRegular priceSale price $20.99 USD -
Komatsu 6745-31-2010 Piston Ring
Regular price $65.49 USDRegular priceSale price $65.49 USD -
Komatsu 6745-31-1120 Crankshaft
Regular price $1,956.80 USDRegular priceSale price $1,956.80 USD -
Komatsu 0426-00952 Ball
Regular price $1.49 USDRegular priceSale price $1.49 USD -
Komatsu 6745-11-3102 Injector Assy
Regular price $697.99 USDRegular priceSale price $697.99 USD -
Komatsu 6743-82-6150 Starter
Regular price $892.99 USDRegular priceSale price $892.99 USD -
Komatsu 6743-61-3740 Belt 1Set=1Pc
Regular price $43.15 USDRegular priceSale price $43.15 USD -
Komatsu 6743-61-1610 Thermostat
Regular price $58.49 USDRegular priceSale price $58.49 USD -
Komatsu 6743-11-5721 Muffler
Regular price $601.99 USDRegular priceSale price $601.99 USD -
Komatsu 6743-11-5720 Muffler
Regular price $546.99 USDRegular priceSale price $546.99 USD -
Komatsu 6743-11-3120 Nozzle
Regular price $101.49 USDRegular priceSale price $101.49 USD -
Komatsu 6742-01-5474 Pin Piston
Regular price $19.99 USDRegular price$24.99 USDSale price $19.99 USDSale -
Komatsu 6742-01-5170 Alternator
Regular price $910.49 USDRegular priceSale price $910.49 USD -
Komatsu 6742-01-1900 Thermostat
Regular price $34.39 USDRegular price$42.99 USDSale price $34.39 USDSale -
Komatsu 6742-01-0840 Gasket, Inta
Regular price $12.49 USDRegular priceSale price $12.49 USD -
Komatsu 6741-61-1621 V-belt
Regular price $52.49 USDRegular priceSale price $52.49 USD -
Komatsu 6738-82-8220 Turbocharger
Regular price $1,208.99 USDRegular priceSale price $1,208.99 USD -
Komatsu 6738-82-6810 Starter
Regular price $874.36 USDRegular price$1,092.95 USDSale price $874.36 USDSale -
Komatsu 6738-81-8092 Turbocharger
Regular price $2,020.49 USDRegular priceSale price $2,020.49 USD -
Komatsu 6738-81-8091 Turbocharger
Regular price $2,101.49 USDRegular priceSale price $2,101.49 USD
Collection: Komatsu Excavator Parts
Komatsu Excavator Parts from WQC Parts are organized to help buyers identify reliable aftermarket replacement parts by part number, equipment family, system, and application. This collection focuses on replacement parts, service components, hardware, wear parts, and related assemblies used to support repair, maintenance, and uptime across heavy equipment applications.
Heavy equipment parts should be selected carefully because the same general description can apply to multiple machines, serial ranges, component groups, or diagram positions. Use this collection as a focused product group, then confirm the exact part number and machine details before ordering.
Komatsu Replacement Parts Applications
Products in this collection may support construction, mining, quarry, forestry, utility, road-building, and fleet maintenance applications. Depending on the machine and component group, fitment may depend on model series, serial range, installed arrangement, hydraulic configuration, engine arrangement, attachment package, or work-equipment setup.
How to Confirm Fitment
- Search by the original part number when available.
- Confirm the machine model, serial range, and component location.
- Check diagram position, quantity, and arrangement notes where parts-book information is available.
- Compare dashed and non-dashed part-number formats when searching.
- Contact WQC Parts with the part number, model, serial number, and photos when fitment is uncertain.
Why Quality Matters
Incorrect or low-quality replacement parts can lead to premature wear, leaks, downtime, poor fitment, repeat repairs, and damage to related components. Properly matched aftermarket parts help protect machine uptime and reduce avoidable repair cost.
Why Buy from WQC Parts?
- Aftermarket heavy equipment parts organized by part number, system, and machine family.
- Support for alternate part numbers and practical fitment review.
- Clear collection structure for faster product discovery.
- Reliable sourcing focused on keeping equipment working.