4W2448 Oil Pump | Construction Machinery & Heavy Truck Diesel Engine Spare Parts

Premium 4W2448 engine oil pump for  construction machinery and heavy-duty truck diesel engines. OEM standard lubrication system replacement pump, factory direct wholesale, flexible MOQ, fast lead time, ISO & CE certified for global aftermarket repair.

The 4W2448 oil pump is a core lubrication system component tailored for heavy-duty diesel engines, widely applied in  construction machinery and commercial heavy trucks. As the power source of the engine lubrication system, it stably delivers pressurized engine oil to all moving parts, including bearings, pistons, crankshafts and valve train components. This continuous oil circulation effectively reduces friction, lowers operating temperature, and prevents dry wear and engine seizure. Manufactured with high-strength cast iron and precision alloy accessories, the 4W2448 oil pump adopts professional CNC machining and internal gear precision grinding technology. It features stable oil pressure output, low noise, strong wear resistance and long operational lifespan. Strictly produced in line with OEM dimensional and technical standards, this oil pump achieves 100% installation interchangeability, serving as a perfect direct replacement for original faulty or aging oil pumps in engine overhaul and daily equipment maintenance.

• Part Number: 4W2448
• Product Name: Engine Lubrication Oil Pump
• Applicable Engine:  heavy-duty diesel engine series
• Applicable Equipment: Construction machinery, excavators, loaders, bulldozers, heavy-duty trucks and industrial generator sets
• Main Material: High-strength cast iron + wear-resistant alloy gear
• Processing Technology: Precision casting, CNC finishing, gear hardening, pressure calibration
• Core Features: Stable oil pressure, high lubrication efficiency, wear resistance, low failure rate, full OEM fit
• Main Function: Provide continuous pressurized oil supply, lubricate engine moving parts, reduce wear and cool engine components

Each 4W2448 oil pump undergoes strict cleaning and anti-rust treatment before packaging. It is individually wrapped with shockproof foam and moisture-proof film to avoid scratches, oxidation and extrusion damage. Thickened drop-resistant export cartons are used for outer packaging. Pallet packaging is available for bulk wholesale orders. Standard neutral export packaging is provided by default, and custom branded logo packaging can be customized for large orders.

We support flexible order quantities to meet diverse global procurement needs. 1–3 pieces of sample orders are acceptable for quality inspection and equipment compatibility testing. The standard wholesale MOQ is 20 pieces. Mixed container loading with other construction machinery and heavy truck spare parts is supported to reduce customers’ comprehensive procurement and logistics costs.

In-stock 4W2448 oil pumps can be shipped within 3–7 working days after deposit confirmation. Bulk mass-production orders take 15–25 working days according to actual order quantity. Priority rush delivery service is available for urgent engineering projects upon advance negotiation.

All 4W2448 oil pumps pass strict factory tests including oil pressure detection, sealing performance test, dimensional tolerance inspection and durability test. Our factory holds ISO9001 quality management system certification and CE certification. All products comply with international mechanical industry standards and support smooth cross-border customs clearance for global customers.

• Manufactured strictly per OEM standards with precise dimensions, no modification required for seamless installation
• High-strength cast iron body, strong pressure resistance and structural stability for harsh working environments
• Hardened alloy gear components, excellent wear resistance and extended service life
• Stable and consistent oil pressure output, avoiding insufficient or unstable engine lubrication
• Effectively reduces engine component friction, lowers failure rate and extends engine service life
• Strict full-process inspection before shipment, stable quality and ultra-low defective rate
• Factory direct supply with sufficient inventory and competitive wholesale prices
• 12-month quality warranty for manufacturing defects
• Wide compatibility with multiple  construction machinery and heavy-duty truck engines

HES Co., Ltd is a company specializing in engineering machinery parts and Sinotruk Shacman truck components. Over the years since its establishment, the company has maintained excellent collaborations with multiple manufacturers such as XCMG, SDLG, Sinotruk, and Shacman. Adhering to the principles of "Quality First, Customer Supremacy, Credibility, and Win-Win Cooperation," we are committed to sincerely cooperating with all clients and pursuing mutual development.