Product Specification

High-quality engine oil pump 3634643 for Cummin s QSK50 and K50 diesel engines. OEM replacement with stable oil pressure, reliable lubrication, and worldwide shipping.

The Engine Oil Pump 3634643 is a high-performance replacement lubrication pump designed for Cummin s QSK50, KTA50, and K50 diesel engines. Engineered to maintain stable oil pressure and continuous lubrication, this oil pump helps protect critical engine components under demanding operating conditions, reducing wear and extending engine service life.

Manufactured from high-strength materials with precision-machined internal gears, this oil pump delivers reliable oil flow and excellent durability for heavy-duty applications including mining equipment, power generation systems, marine engines, oilfield equipment, and industrial machinery. Part number 3634643 is commonly used on Cummin s K50 and QSK50 engine platforms and is interchangeable with several related oil pump references.

Reference Part Numbers

• 3634643
• 3177103
• 3176014
• 3177098

Please verify the engine model and OEM part number before ordering.

Why Choose Us

We specialize in supplying high-quality diesel engine replacement parts for the global aftermarket. Every oil pump undergoes strict quality inspection before shipment to ensure reliable performance, accurate fitment, and long service life.

Whether you are an engine rebuilder, distributor, equipment dealer, or repair workshop, we provide dependable products, competitive pricing, and professional support for your business.

Complete Diesel Engine Parts Solution

As a professional supplier of diesel engine spare parts, we provide a complete range of replacement components for engine repair, overhaul, and maintenance.

Engine Components

• Cylinder Block
• Cylinder Head
• Crankshaft
• Camshaft
• Connecting Rod

Engine Rebuild Parts

• Full Gasket Kit
• Piston
• Cylinder Liner
• Piston Ring
• Main Bearing
• Connecting Rod Bearing
• Thrust Washer

Lubrication System

• Oil Pump
• Oil Nozzle

Valve Train Components

• Engine Valve
• Valve Guide
• Valve Seat
• Valve Spring
• Valve Lock
• Valve Cap
• Tappet
• Push Rod
• Rocker Arm Assembly

Fuel Injection System

• Fuel Injector
• Nozzle Sleeve

Engine Brands We Support

We supply parts for Kubota, Cummin s, CAT, Perkins, Yanmar, Isuzu, Komatsu, Mitsubishi, Hino, Nissan, Vol vo, Deutz, Doosan, Daewoo, John Dee re, Scania, Hyundai and JCB.

FAQ

1. Is this oil pump compatible with Cummin s QSK50 engines?

Yes. Part number 3634643 is widely used on Cummin s QSK50, K50, KTA50, and KT50 diesel engines. Please confirm the OEM number before purchase.

2. What is the function of the engine oil pump?

The oil pump circulates engine oil throughout the lubrication system, ensuring proper lubrication of bearings, crankshaft, camshaft, pistons, and other moving components.

3. What are the signs of a failing oil pump?

Common symptoms include:

• Low oil pressure
• Oil warning light
• Engine knocking noise
• Poor lubrication
• Excessive engine wear

4. Can this oil pump be used during engine overhaul?

Yes. It is commonly installed during complete engine rebuilds and preventive maintenance projects.

5. Do you provide wholesale pricing?

Yes. We support distributors, engine rebuilders, equipment dealers, and repair workshops worldwide.

6. Can you supply other QSK50 engine parts?

Yes. We can provide overhaul kits, gasket kits, pistons, liners, bearings, cylinder heads, crankshafts, injectors, fuel pumps, water pumps, valves, and many other Cummin s QSK50 engine parts.

Keywords

• Cummin s QSK50 Oil Pump
• 3634643 Oil Pump
• Cummin s K50 Oil Pump
• KTA50 Engine Oil Pump
• Diesel Engine Lubrication Pump
• Cummin s Engine Parts
• QSK50 Replacement Oil Pump
• Heavy Duty Diesel Engine Oil Pump
• Cummin s 3634643 Oil Pump
• Engine Overhaul Parts for QSK50 Diesel Engine