Fuel Injector 1077733 for Cat 3114 3116 3126 3126B / 446B 446D Backhoes
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Cat engines | 3114, 3116, 3126, 3126B applications using 1077733 |
|---|---|
| Equipment | Selected Cat 446B and 446D backhoe applications |
Product Overview
A failing injector can cause hard starting, rough idle, cylinder misfire, smoke, excessive fuel consumption and low power. Correct injector operation is especially important on mechanically/electronically controlled Cat engine families where spray quality and fuel delivery directly affect combustion.
The 3114/3116/3126 family covers many machine and truck installations, and injector design can vary by engine serial number and fuel-system revision. Use 1077733 as the primary match and confirm engine serial/build before ordering.
Key Features & Performance
- Replacement injector for selected Cat 3114/3116/3126 applications
- Reference 1077733
- Restores controlled fuel delivery and atomization
- Useful for injector-related rough running, smoke and hard-start repairs
Specifications & Reference Numbers
- Reference: 1077733
- Part type: Diesel fuel injector
Before You Order
Verify engine serial number and injector reference before purchase. Cat 3116/3126 engines used multiple injector families that are not interchangeable.
Frequently Asked Questions
What should I use as the final fitment check? Use the listed part/reference numbers, your exact engine or machine model, and the physical configuration of the part being replaced. Serial-number and production changes can matter.
What are common reasons to replace this part? A failing injector can cause hard starting, rough idle, cylinder misfire, smoke, excessive fuel consumption and low power. Correct injector operation is especially important on mechanically/electronically controlled Cat engine families where spray quality and fuel delivery directly affect combustion.