Variklis Komatsu SAA4D102E ekskavatoriaus Komatsu PC130-7 PC120LC-6 PC138US PC160LC-7 PW130-7 PW160-7

PRODUCT: Komatsu SAA4D102E Diesel Engine Assembly & Parts

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).