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Komatsu 6754-21-6230 Seal
Regular price $36.27 USDRegular priceSale price $36.27 USD -
Komatsu 6754-21-9120 Gasket
Regular price $19.40 USDRegular priceSale price $19.40 USD -
Komatsu 6754-11-4280 Gasket
Regular price $14.42 USDRegular price$18.02 USDSale price $14.42 USDSale -
Komatsu 6754-11-3101 Injector
Regular price $936.22 USDRegular priceSale price $936.22 USD -
Komatsu 6754-11-7120 Gasket
Regular price $26.33 USDRegular priceSale price $26.33 USD -
Komatsu 6754-11-3130 Gasket
Regular price $6.42 USDRegular priceSale price $6.42 USD -
Komatsu 6754-11-1811 Gasket
Regular price $124.10 USDRegular priceSale price $124.10 USD -
Komatsu 6742-01-5158 Gasket
Regular price $15.34 USDRegular priceSale price $15.34 USD -
Komatsu 6736-27-8620 Crankshaft Thrust Bearing
Regular price $151.27 USDRegular priceSale price $151.27 USD -
Komatsu 6736-28-8100 Main Metal Assembly
Regular price $175.40 USDRegular priceSale price $175.40 USD -
Komatsu 6736-26-8100 Main Metal Assembly
Regular price $123.28 USDRegular priceSale price $123.28 USD -
Komatsu 6736-27-8100 Main Metal Assembly
Regular price $137.17 USDRegular priceSale price $137.17 USD -
Komatsu 6735-71-6610 Gasket
Regular price $7.58 USDRegular priceSale price $7.58 USD -
Komatsu 6735-28-8110 Main Upper Bearing
Regular price $175.40 USDRegular priceSale price $175.40 USD -
Komatsu 6735-27-8110 Main Upper Bearing
Regular price $137.17 USDRegular priceSale price $137.17 USD -
Komatsu 6735-29-8110 Main Upper Bearing
Regular price $150.47 USDRegular priceSale price $150.47 USD -
Komatsu 6735-26-8110 Main Upper Bearing
Regular price $123.28 USDRegular priceSale price $123.28 USD -
Komatsu 6735-28-8200 Crankshaft Thrust Bearing
Regular price $175.40 USDRegular priceSale price $175.40 USD -
Komatsu 6732-81-8220 Clamp
Regular price $35.89 USDRegular priceSale price $35.89 USD -
Komatsu 6732-28-8100 Main Bearing Assembly
Regular price $150.47 USDRegular priceSale price $150.47 USD
Collection: Komatsu D51EX Parts
Komatsu D51EX Parts from WQC Parts is organized to help buyers find aftermarket Komatsu replacement parts by machine model, part number, and application. Use this collection to review related parts, then confirm final fitment by checking the Komatsu part number, machine model, serial range, and component arrangement before ordering.
Komatsu D51EX Parts Applications
Parts in this collection may support heavy equipment repair, maintenance, and uptime across construction, mining, quarry, road-building, utility, forestry, and fleet applications. Fitment can vary by serial range, installed arrangement, hydraulic configuration, engine arrangement, or attachment package.
How to Confirm Fitment
- Search by the original Komatsu part number when available.
- Compare dashed and non-dashed part-number formats.
- Confirm model, serial number, diagram position, and quantity.
- Contact WQC Parts with the part number, model, serial number, and photos when fitment is uncertain.
Why Choose WQC Parts?
WQC Parts focuses on WQ Certified aftermarket Komatsu parts, organized product data, and practical support for keeping heavy equipment working.