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Komatsu 600-821-3860 Alternator
Regular price $587.49 USDRegular priceSale price $587.49 USD -
Komatsu 6204-28-8100 Set Main Metal 050
Regular price $77.99 USDRegular priceSale price $77.99 USD -
Komatsu 6140-38-3040 Crankpin Metal 0.75 0.50
Regular price $25.49 USDRegular priceSale price $25.49 USD -
Komatsu 6204-31-2202 Piston Ring Set
Regular price $57.49 USDRegular priceSale price $57.49 USD -
Komatsu 6204-29-8100 Set Main Metal 025
Regular price $77.99 USDRegular priceSale price $77.99 USD -
Komatsu Ym129900-23910 Metal
Regular price $23.49 USDRegular priceSale price $23.49 USD -
Komatsu 700-22-11420 Gasket
Regular price $1.49 USDRegular priceSale price $1.49 USD -
Komatsu 08670-00635 Indicator
Regular price $41.46 USDRegular priceSale price $41.46 USD -
Komatsu Ym129900-11110 Valve Exhaust
Regular price $37.30 USDRegular price$46.63 USDSale price $37.30 USDSale -
Komatsu 6204-11-1440 Valve Seat Ex (Std)
Regular price $15.49 USDRegular priceSale price $15.49 USD -
Komatsu Ym129900-11100 Valve Intake
Regular price $17.06 USDRegular priceSale price $17.06 USD -
Komatsu Ym120130-22301 Piston Pin
Regular price $49.99 USDRegular price$62.49 USDSale price $49.99 USDSale -
Komatsu Ym119836-77200 Alternator
Regular price $371.99 USDRegular priceSale price $371.99 USD -
Komatsu 6204-39-2202 Piston Ring Assembly, .25Mm O/S
Regular price $65.49 USDRegular priceSale price $65.49 USD -
Komatsu 6204-31-3101 Connecting Rod
Regular price $130.49 USDRegular priceSale price $130.49 USD -
Komatsu 6144-21-2211 Liner Cylinder
Regular price $116.79 USDRegular price$145.99 USDSale price $116.79 USDSale -
Komatsu 6140-36-3040 Crankpin Metal 0.75 1.00
Regular price $27.99 USDRegular priceSale price $27.99 USD -
Komatsu 14Z-43-11310 Knob
Regular price $29.99 USDRegular priceSale price $29.99 USD -
Komatsu 14X-43-14170 Knob
Regular price $57.99 USDRegular priceSale price $57.99 USD -
Komatsu 07161-10050 Piston Ring
Regular price $41.19 USDRegular price$51.49 USDSale price $41.19 USDSale
Collection: Komatsu D21PL Parts
Komatsu D21PL 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 D21PL 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.