Komatsu D375A-6 Fan Pump Assembly – China Remanufactured (708-1W-00670 / 708-1W-00690)

Description

Detail Information

1. Key Features & Benefits

• Professionally remanufactured to Komatsu OEM standards – This fan pump assembly (OEM 708-1W-00670 / 708-1W-00690) has been fully disassembled, cleaned, crack-inspected, and rebuilt to meet Komatsu‘s original equipment specifications. Every critical component – cylinder block, piston assemblies, valve plate, bearings, and seals – is either renewed or replaced with new, high-quality parts. The result is restored hydraulic performance at a fraction of the cost of a new genuine pump.

• Direct replacement for Komatsu D375A-6 / D375A-6R bulldozers – Specifically engineered for Komatsu D375A-6, D375A-6R, and related large bulldozer models. This pump assembly is a critical component of the dozer’s hydraulic cooling system, driving the engine cooling fan to maintain optimal operating temperatures during heavy dozing, ripping, and earthmoving operations. Serial number applicability from SN: 60001-UP.

• High-capacity fan drive for 70-ton class dozers – The D375A-6 is a 70+ ton bulldozer powered by the Komatsu SAA6D170E-5 engine delivering 455 kW (610 HP) at 1,800 rpm. The hydraulic system features a piston-type pump with a rated flow of 366 L/min at额定转速 and a rated working pressure of 27.5 MPa (≈3,990 psi) . This fan pump assembly ensures the engine cooling fan operates at the required speed to dissipate heat from the engine, transmission, and hydraulic system during the most demanding applications.

• Robust construction for extreme conditions – Built with high-strength materials and precision-machined components to withstand the extreme shock loads, vibration, and abrasive dust conditions typical of large-scale mining, quarrying, and heavy earthmoving environments. The pump assembly weighs approximately 80 kg, reflecting its heavy-duty construction.

• Restored cooling system performance – After remanufacturing, this pump delivers the full rated flow and pressure your D375A-6 was designed for. Your bulldozer regains consistent engine cooling performance, preventing overheating and ensuring reliable operation during long shifts in the toughest conditions.

• Direct bolt-on replacement – Mounting flange, drive shaft spline, and hydraulic port configurations are restored to original Komatsu specifications. No modifications, no adapters – your mechanic unbolts the old pump and bolts this one in.

• Pre-shipment visual verification – Before packing, we send you detailed high-resolution photographs of the actual unit (mounting flange, splines, port threads, castings, overall condition). You approve shipment – we never ship blind.

• Fast delivery – 5–8 working days lead time from our Guangzhou warehouse. Monthly supply capacity of 300 units, available for single-piece or bulk orders.

2. Applications

The remanufactured Komatsu 708-1W-00670 fan pump assembly is the power source for the engine cooling fan on D375A-6 and D375A-6R bulldozers used in the most demanding earthmoving operations:

• Large-scale open-pit mining – D375A-6 dozers are the backbone of overburden removal, coal stockpiling, and road maintenance in copper, gold, iron ore, and coal mining operations. The fan pump‘s 366 L/min flow capacity ensures consistent engine cooling during 20+ hour shifts in remote mine sites where overheating can cause catastrophic engine failure. The heavy-duty construction withstands the extreme shock loads and abrasive dust of hard rock mining environments.

• Quarrying & aggregates – Stockpile management, bench preparation, and material handling in granite, limestone, and basalt quarries. The pump’s robust construction and contamination-resistant design withstand abrasive dust conditions, while the consistent flow ensures the cooling fan maintains optimal engine temperatures even under continuous heavy loads.

• Heavy construction & infrastructure – Highway construction, dam building, airport runway grading, and large-scale earthmoving projects. The pump’s high flow capacity (366 L/min) and pressure capability (27.5 MPa) deliver reliable cooling system performance hour after hour, preventing engine derating due to high temperatures during long shifts.

• Land clearing & forestry – Clearing vegetation, pushing fallen timber, and firebreak construction. The pump’s consistent output ensures the cooling fan responds to varying engine loads, maintaining stable operating temperatures in demanding terrain conditions.

• Equipment rental fleet – D375A-6 dozers are high-value rental assets. A remanufactured fan pump offers predictable performance at a cost that makes proactive replacement financially sensible – avoiding costly mid-rental failures, towing bills, and customer complaints.

3. Why Choose Hongtengda Parts

Since 2001, Hongtengda Parts has been a leading distributor of earthmoving machinery parts, serving customers across Southeast Asia, the Middle East, Africa, the Americas, and Oceania. Headquartered in Guangzhou‘s Zhucun parts hub – one of Asia’s major distribution centres for construction machinery parts – we combine deep inventory, cross-brand knowledge, and reliable global shipping to keep your machines running.

What you get when you order from us:

• 25 years of heavy equipment parts experience – Since 2001, we have been the go-to supplier for repair shops, fleet owners, and wholesalers worldwide. We know the Komatsu D375 platform inside out – the different engine variants (SAA6D170E-5), hydraulic systems, and production changes over the years.

• Remanufacturing that delivers performance comparable to new – Our remanufacturing process follows strict quality standards to ensure same-as-new quality and performance. Each pump is rebuilt using precision engineering principles, with all critical wear components replaced – not just patched or resealed.

• 90% of our catalog in stock – Your fan pump sits in our Guangzhou warehouse, not in a supplier’s backlog. From hydraulic pumps to undercarriage kits, most orders are dispatched within 24 hours on fumigated, export-ready pallets.

• One supplier, all parts – Got a serial number, a model code, or just a photo of a worn-out part? Our specialists cross-reference across Komatsu, Caterpillar, Hitachi, and 15+ brands to find what you need. OEM, OEM-quality, or hard-to-find older model parts – we handle the search so you don‘t have to.

• Own maintenance factory and technical team – Equipped with our own maintenance factory and a team of experienced technicians, we provide global customers with one-stop solutions covering parts supply, technical support, and equipment maintenance.

• Pre-shipment verification – We never ship a pump blind. You receive clear photos of the actual unit before packing – you approve, we ship. When downtime costs money, we move at your speed.

• Cost-effective alternative to new OEM – Remanufactured pumps deliver the same performance as new Komatsu pumps while priced at a fraction of the cost. This makes proactive replacement financially accessible for fleet owners and repair shops alike.

• After-sales support that works – Three senior technicians review your case together. If it‘s a quality issue – we cover it. If not – we still guide you through the fix. We don’t just sell parts; we keep you running.

Send us your Komatsu D375A-6 machine serial number and a photo of the old pump – we will confirm the exact model and quote you within 24 hours.