Caterpillar 178-6342 Diesel Injector - Fit for 3126B Engine HEUI Fuel Injection System
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| Product Type | Injector assembly / Single pump injector |
| Fuel System | HEUI Electronic Hydraulic Unit Injector System |
| Engine Model | Caterpillar 3126B |
| Part Number | 178-6342 / 1786342 |
| Interchange Number | 10R-1257, 183-0691, 177-4752 |
| Height | 4.8 inches (approximately 122 mm) |
| Length | 12.3 inches (approx. 312 mm) |
| Packaging Weight | Approx. 2 kg (4.4 lbs) |
| Material and Process | High-strength Alloy Steel, Precision Machining, OEM Specification Manufacturing |
| Applicable Fuel | Diesel |
Manufacturer No.
1786342178-6342
OEM Part No.
1786342178-634210R-125710R1257183-0691177-4752178019910R-9237
Engine Part No.
CAT 31263126B3126EC6.4
Interchange No.
CA178634217747541780199
Fitment Vehicles
Caterpillar 3126 EngineCaterpillar 3126B EngineD5N ExcavatorD6N Excavator120H Grader135H Grader938G II LoaderIT38G II Utility Vehicle953C Crawler Loader963C Crawler Loader561N Pipe Layer3216 Engine
Fuel System - Industrial Encyclopedia
Professional supply of Caterpillar 178-6342 (1786342) diesel injector assembly, fit for CAT 3126B engine. This injector is a core component of the HEUI electronic unit pump fuel injection system, widely used in Caterpillar D5N, D6N crawler dozers, 120H, 135H graders, 938G II loaders, and IT38G II trucks. The product is a market after-market or remanufactured part, manufactured strictly according to OEM specifications, ensuring fuel injection pressure and atomization effect. Replaces OEM numbers 10R-1257, 183-0691, 177-4752, etc. Highly reliable, enhancing engine power and fuel economy.