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Komatsu 42N-20-11400 Cardan Shaft, Front
Regular price $525.10 USDRegular priceSale price $525.10 USD -
Komatsu 42N-20-11311 Propeller Shaft
Regular price $526.43 USDRegular priceSale price $526.43 USD -
Komatsu 42N-20-11300 Shaft, Rear Drive
Regular price $489.33 USDRegular priceSale price $489.33 USD -
Komatsu 42N-07-11910 Filter, Return Air
Regular price $45.29 USDRegular price$56.61 USDSale price $45.29 USDSale -
Komatsu 428-20-12620 Spider Assembly
Regular price $2,528.71 USDRegular priceSale price $2,528.71 USD -
Komatsu 427-70-11250 O-Ring
Regular price $20.76 USDRegular priceSale price $20.76 USD -
Komatsu 427-46-12260 Bushing
Regular price $251.52 USDRegular priceSale price $251.52 USD -
Komatsu 427-46-11140 Dust Seal
Regular price $48.31 USDRegular priceSale price $48.31 USD -
Komatsu 427-22-21760 Seal
Regular price $57.71 USDRegular priceSale price $57.71 USD -
Komatsu 427-15-15910 O-Ring
Regular price $0.58 USDRegular priceSale price $0.58 USD -
Komatsu 427-09-11120 Seal
Regular price $55.20 USDRegular priceSale price $55.20 USD -
Komatsu 426-70-31970 Pin
Regular price $666.25 USDRegular priceSale price $666.25 USD -
Komatsu 426-46-22120 Pin
Regular price $201.70 USDRegular price$252.12 USDSale price $201.70 USDSale -
Komatsu 426-46-12341 Packing
Regular price $463.39 USDRegular priceSale price $463.39 USD -
Komatsu 426-15-22740 Plate
Regular price $165.42 USDRegular price$206.78 USDSale price $165.42 USDSale -
Komatsu 426-09-11380 Oil Seal
Regular price $54.69 USDRegular price$68.36 USDSale price $54.69 USDSale -
Komatsu 426-09-11340 Dust Seal
Regular price $92.35 USDRegular price$115.44 USDSale price $92.35 USDSale -
Komatsu 425-70-31970 Pin
Regular price $475.38 USDRegular priceSale price $475.38 USD -
Komatsu 425-70-31940 Pin
Regular price $488.02 USDRegular priceSale price $488.02 USD -
Komatsu 425-70-31840 Bushing
Regular price $246.76 USDRegular priceSale price $246.76 USD
Collection: KOMATSU PARTS
Komatsu Parts for Construction & Mining Equipment
Komatsu equipment is built for extreme productivity in construction, quarry, mining, and heavy civil applications. Maintaining that performance requires precision-fit, high-quality replacement components designed to withstand high loads, abrasive environments, and continuous operating cycles.
WQPARTS supplies a comprehensive range of aftermarket Komatsu parts engineered to support uptime, durability, and long-term equipment performance.
Complete Coverage for Komatsu Machines
We supply replacement parts for a wide range of Komatsu equipment, including:
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PC Series Excavators (PC200, PC300, PC400, PC490, PC800 and more)
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WA Series Wheel Loaders (WA250, WA380, WA470, WA500, WA600)
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D Series Dozers (D39, D51, D65, D85, D155)
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Articulated Dump Trucks
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Rigid Mining Trucks
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Motor Graders
Our inventory supports both mid-size construction fleets and large-scale mining operations.
Komatsu Parts We Supply
Our product range includes:
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Engine components
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Hydraulic pumps and hydraulic parts
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Seal kits and cylinder components
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Pins and bushings
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Bearings and wear components
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Gaskets and sealing systems
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Undercarriage components
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Service and maintenance kits
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Cooling system components
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Electrical components
Each part is selected to meet or exceed OEM dimensional and material standards, helping ensure proper fitment and reliable performance under load.
Built for Real-World Operating Conditions
Komatsu equipment often operates in:
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High-abrasion soil
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Mining environments
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Demolition sites
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Long-hour production cycles
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High-temperature hydraulic systems
Component quality directly affects machine life. Improper hardness, incorrect tolerances, or poor material composition can lead to premature wear, hydraulic leakage, structural damage, and costly downtime.
Our aftermarket Komatsu parts are selected with durability and service life in mind.
Supporting Contractors & Fleet Managers
We work with:
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Independent contractors
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Equipment rental fleets
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Mining operations
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Service shops
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Heavy equipment rebuild specialists
Whether you’re performing scheduled maintenance, rebuilding a hydraulic cylinder, replacing undercarriage components, or completing a major engine repair, WQPARTS provides dependable Komatsu replacement parts backed by industry knowledge.
Why Choose WQPARTS for Komatsu Parts?
✔ Industry experience in heavy equipment
✔ Competitive aftermarket pricing
✔ Technical fitment assistance
✔ Global shipping
✔ Reliable inventory availability
We understand the operational and financial pressures of heavy equipment ownership — and supply parts accordingly.