CAT 336E / 336F Main Hydraulic Pump – China Remanufactured (377-4968)

Description

Detail Information

Note: The application information provided is for reference only. Please confirm the part number and compare it with the old component before purchasing. If you have any questions, please feel free to contact us.
It is worth choosing a product that features stable performance, high reliability, easy installation, and quick response.

1. Key Features & Benefits

• Precision-remanufactured for CAT 336E / 336F excavators – This main hydraulic pump (OEM 377-4968) has been fully disassembled, cleaned, crack-inspected, and rebuilt to meet Caterpillar’s original equipment specifications. Every critical component – cylinder block, piston assemblies, valve plate, swashplate, 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 30–35 ton class excavators – Specifically engineered for CAT 336E, CAT 336F, and related 30–35 ton class excavators. This pump powers the boom, arm, bucket, swing, and travel circuits with the precise flow and high pressure required for heavy construction, quarrying, and mining operations.

• High-pressure capability for demanding work – Designed for Caterpillar’s heavy-duty hydraulic systems, this pump delivers consistent pressure and flow under extreme loads. The reinforced structural design ensures stable high-pressure output even in the most demanding applications. Heavy-duty bearings and bushings provide high peak power density and on-demand flow performance.

• Restored 30–35 ton class hydraulic power – After remanufacturing, this pump delivers the full rated flow and pressure your CAT 336E or 336F was designed for. Your excavator regains original digging force, fast cycle times, responsive swing, and powerful travel – eliminating the sluggish performance caused by internal wear and leakage.

• Energy-efficient performance – The remanufactured pump features an energy-efficient design that reduces parasitic load on the engine. This translates directly to lower fuel consumption and reduced operating costs over thousands of hours.

• High-performance sealing system – Premium seals and gaskets are installed during remanufacturing to withstand extreme hydraulic pressures and temperatures. This prevents internal and external leakage, maintaining peak efficiency and extending pump service life.

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

• Heavy-duty construction for long service life – Built with durable materials and precision-machined components. The pump is designed to withstand heavy loads, shocks, and vibrations commonly encountered in mining, quarrying, and heavy construction environments.

• 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 CAT 377-4968 main hydraulic pump is the power source for CAT 336E and CAT 336F excavators used in the most demanding job sites:

• Large-scale construction & infrastructure – Highway excavation, dam building, bridge footings, and large-scale earthmoving projects. The pump’s high-pressure capability delivers consistent digging force and swing torque hour after hour, while the energy-efficient design reduces fuel consumption across long shifts.

• Quarrying & aggregates – Loading trucks, stockpile management, and material handling in granite, limestone, and basalt quarries. The pump’s robust construction and contamination-resistant design withstand abrasive dust conditions, while the reinforced structure absorbs shock loads from hard rock extraction.

• Mining support – Site cleanup, road maintenance, drainage works, and equipment pad grading. A remanufactured pump with new bearings and seals provides predictable service life (typically 3,000–5,000 hours) – avoiding costly unplanned downtime in remote mine sites.

• Demolition & scrap processing – Shock loads, vibration, and sharp debris are routine in demolition yards and metal recycling facilities. The pump’s heavy-duty bearings and reinforced housing absorb these extreme conditions without premature wear.

• Equipment rental fleet – 30–35 ton excavators are high-value rental assets. A remanufactured pump offers predictable performance at a cost that makes proactive replacement financially sensible – avoiding costly mid-rental failures, towing bills, and customer complaints.

• Forestry & land clearing – Steep slopes, fallen timber, and uneven terrain demand reliable hydraulic performance. The pump’s consistent pressure output maintains stable power for saws, grapples, and mulchers, even under varying load conditions.

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 CAT 336E / 336F platform inside out – the different engine variants, control 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 the same precision engineering principles as OEM manufacturing, with all critical wear components replaced – not just patched or resealed.

• 90% of our catalog in stock – Your 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 Caterpillar, Komatsu, Hitachi, Sany, 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 typically cost 50–80% of new OEM prices while delivering the same performance and reliability. 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 CAT 336E or 336F machine serial number and a photo of the old pump – we will confirm the exact model and quote you within 24 hours.