Catastrophic engine overheating in high-ambient conditions? The Hydraulic Fan Pump GP (7081S00390) drives critical cooling for Komatsu D375A Bulldozers. Our mining-grade replacement delivers uncompromised thermal control:
✅ 50°C ambient temperature tolerance
✅ Precision flow control (45±0.5 L/min)
✅ Rock-impact resistant housing
Critical Failure Symptoms:
• Engine temp >108°C during ripping
• Hydraulic oil carbonization
• Coolant boiling overflow
• Fan speed fluctuations (>±15%)
• Error Code E551/E552 activation
Technical Specifications:
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Part Numbers: 7081S00390, 708-1S-00390, GP-7081S00390
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Type: Gear-driven hydraulic fan pump
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Operating Pressure: 220 bar (3,200 PSI)
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Displacement: 28.3 cm³/rev
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Compatible Models:
› D375A-1 (SN: 5001-59999)
› D375A-3 (SN: 7001-79999)
› D375A-5EO (SN: E5001-E5999)
› D375A-6 (SN: B5001-B5999)
› D375A-8 (SN: H7001-H7999)
Engineering Breakthroughs:
▶ Hardened alloy gears – 50,000hr MTBF rating
▶ Triple-stage filtration – 5μm particle exclusion
▶ Thermal-stabilized seals (-30°C to 130°C)
▶ Vibration-dampened mounting – 40% longer hose life
Extreme Validation:
“7081S00390 pumps maintained 85°C engine temp in D375A-5EOs during 120h continuous mine operation” – Komatsu Thermal Management Report #TR-775
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