Komatsu SAA4D102E engine for Komatsu PC130-7 PC120LC-6 PC138US PC160LC-7 PW130-7 PW160-7 excavator
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Komatsu 4D95L-1GG engine for Komatsu PC60‑3 PC60‑5 PC60‑6 PC75UU‑1 PC100‑5 PC120‑5 PC130‑5 excavator
China
China, Jining City
China, Guangzhou
China
China, Guangzhou
China, Guangzhou
China, Guangzhou
China, Guangzhou
China, Guangzhou
China, Guangzhou
China, Guangzhou
Lithuania, Padvariai
Germany, Rheda-Wiedenbrück
Romania, Targu Mrues
Spain, León
Romania, Targu Mrues
1. Application Compatibility
This engine is the primary power source for Komatsu’s mid-sized crawler and wheeled excavators:
PC Crawler Series: PC120-6, PC120LC-6, PC128UU, PC130-7, PC160LC-7
PC Short Tail Series: PC138US-2, PC138USLC-2
PW Wheeled Series: PW130-7, PW140-7, PW148-7, PW160-7
Bulldozer: D31EX-21, D37EX-21
Other Equipment: Also found in Komatsu loaders (WA100, WA150, WA200) and certain telescopic handlers.
2. Technical Specifications
Engine Model: SAA4D102E-2 (Turbocharged & Aftercooled)
Type: 4-Cylinder, 4-Cycle, Water-Cooled, Inline
Aspiration: Turbocharged and Aftercooled (Air-to-Air)
Bore x Stroke: 102 mm x 120 mm
Displacement: 3.92 Liters
Rated Output: 60 - 90 kW (Approx. 80 - 120 HP @ 2200 RPM)
Combustion System: Direct Injection
Lubrication: Forced lubrication via gear pump
3. Key Engineering Advantages
Optimized Power-to-Weight: The 3.9L displacement provides high torque rise, allowing models like the PC130-7 to maintain fast cycle times and strong digging forces in hard soil.
Air-to-Air Aftercooling: By cooling the intake air, the SAA4D102E achieves better combustion efficiency and lower thermal stress, extending the life of the pistons and valves.
Rugged Block Design: Features a heavy-duty cast iron block without cylinder liners (parent-bore design), which provides superior heat transfer and structural rigidity for the PC160LC-7.
Global Compatibility: The SAA4D102E is based on the proven Cummins 4BT/QSB3.9 platform, making spare parts globally accessible and maintenance straightforward for any technician.
4. Supply Scope for Parts
Engine Assemblies: Brand new original engines, factory remanufactured (exchange) units, and tested used "running" engines.
Overhaul Kits: Pistons, rings, main and rod bearings, and thrust washers (available in standard and various oversize options).
Gasket Sets: Complete engine overhaul kits, including the multi-layer steel (MLS) head gasket.
Fuel & Turbo System: Turbochargers, mechanical injection pumps, fuel injectors, and lift pumps.
Cooling & Electrical: Water pumps, oil coolers, thermostats, 24V starters, and alternators.
Service Support: 1-year quality warranty on new components and fast global shipping (DHL, UPS, FedEx).