Engine Spare Parts

This brand-new common rail solenoid fuel injector, part number 5263262 and 0445120231, matches QSB4.5 and QSB6.7 diesel engines. It adopts multi-hole nozzle design with precise fuel atomization. Every injector is calibrated and tested on professional test bench before shipment.

Brand-new 4089963 piston for QSL9/ISL9 engines features a steel crown and aluminum skirt, closed cooling gallery, and plasma-coated ring grooves for durability under heavy loads. Precision-sorted for balance, it offers excellent interchangeability and a 6-month warranty—ideal for excavator and mining engine overhauls.

Brand-new 4376335 forged aluminum piston for 6B5.9 heavy-duty diesel engines. Features refined ring grooves, oil-retaining skirt texture, and weight-graded sets for durability and balance. Premium aftermarket replacement with 6-month warranty; available individually or as a complete kit with pin, circlips, and rings.

Standard size 102mm Piston Ring Set (OEM 5I-7538 / 5I7538), cross-referenced with 178-6543 and Mitsubishi 34317-19010. Specially engineered for CAT 3066, 3064, and S6K diesel engines and excavators. Crafted from high-grade alloy steel to ensure superior cylinder sealing and durab

Direct-fit piston assembly (1830532C3/C2) for Navistar DT530E and 1306 engines with 116.5mm bore. Cast iron construction ensures thermal resistance to 120°C. Complete kit with pin and retainers restores compression and power. Backed by 12-month warranty and 15-day delivery.

P/N 3803002 Diesel Piston, compatible with V28, G28 and VTA28 engine. Made of high-grade cast aluminum alloy with wear-resistant skirt coating. Reinforced combustion bowl structure adapts to severe high-load combustion environment. Fine machining of ring grooves ensures consisten

P/N 3802657 Diesel Piston, compatible with 6C, 6CT 8.3L, ISC and QSC8.3 engine. Made of high-grade cast aluminum alloy with wear-resistant skirt coating. The optimized combustion chamber structure adapts to severe working conditions of medium & heavy-duty diesel engines.

Piston 2881926, replacement piston for L8.9 ISL QSL 6L 8.9L diesel engine. High-strength cast aluminum alloy, precise dimension, dependable quality for heavy truck and construction machinery engine rebuild.