Engine derating during heavy dozing? The Hydraulic Fan Motor GP (7087W00012) maintains critical cooling for Komatsu D275A Mining Bulldozers in 50°C+ conditions. Our OEM-spec solution delivers:
✅ 55°C ambient temperature tolerance
✅ 3,800 RPM ±1.5% speed stability
✅ ISO 12103-1 Dust Certification Plus
Critical Failure Indicators:
• Coolant temp >110°C during ripping
• Hydraulic oil viscosity breakdown
• Visible steam from radiator
• Frequent ECO mode activation on slopes
• Diagnostic Codes E551/E552/E450
Technical Specifications:
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Part Numbers: 7087W00012, 708-7W-00012, GP-7087W00012
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Type: Gerotor hydraulic motor with thermal sensor port
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Torque Output: 280 Nm @ 170 bar
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Flow Range: 48-55 L/min
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Compatible Models:
› D275A-1 (SN: 5001-5999)
› D275A-2 (SN: 6001-6999)
› D275A-3 (SN: 7001-7999)
› D275A-5 (SN: A5001-A5999)
› D275A-5EO (SN: E5001-E5999)
› D275A-5HR (SN: H5001-H5999)
Engineering Innovations:
▶ Nanoceramic bearings – 30,000hr MTBF rating
▶ Triple-labyrinth seal system – IP69K+M certified
▶ Vibration-optimized impeller – <0.15mm imbalance
▶ Thermal-conductive aluminum housing (k=1.2 W/m·K)
Extreme Validation:
“7087W00012 motors maintained 93°C operating temp in D275A-5EOs during 96h continuous operation at Pilbara iron ore mines” – Komatsu Mine Cooling Report #MCR-228
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