XZR8®
Product TypeDiesel injector assembly
Injection TechnologyHEUI (Hydraulically Driven Electronic Unit Injector)
Applicable Engine SeriesCaterpillar 3126B / 3126E
Applicable Vehicle Year2002-2007
Installation Bolt Size4 x 1 bolt
High Pressure Hose TorqueStandard SAE Interface
MaterialHigh-Strength Alloy Steel, Precision Matched Parts
Injector TypeElectro-controlled Single-Piston Injector
Fuel System TypeHigh Pressure Common Rail (applicable to some models)
Manufacturer No.
177-4752
OEM Part No.
177-4752
Engine Part No.
31263126B3126EC7
Interchange No.
177475210R-125710R1257178-63421786342177-47541774754178-01991780199171-9704171970410R-1306229-8842178-6343205-128510R07820 445 120 17704451201775254261185-8016390078X
Fitment Vehicles
CAT 320D953C Track Loader963C Track LoaderD5N ExcavatorD6N Excavator938G II Wheel Loader120H Grader135H Grader561N Pipe LayerIT38G II Utility VehicleE325C Excavator

Fuel System - Industrial Encyclopedia

High-quality Caterpillar 177-4752 fuel injector compatible with 3126B engines featuring HEUI (Hydraulic Electronic Unit Injector) technology. Precision-engineered for optimal fuel delivery and engine performance. Direct replacement for OEM part 177-4752.