3175278 New Aftermarket Fuel Injector fits Caterpillar 3176C (6 Cyl Engine) – GOTTO

Product Specifications:

Engineered to conquer the brutal mechanical loads of heavy grading, compaction, and earthmoving, the 3175278 is a premium aftermarket MEUI (Mechanically Actuated Electronically Controlled Unit Injector). Precision-manufactured for the legendary CAT C10, C12, and 3176C diesel engines (the rugged powerplants driving the D7R II track-type tractors, 140H/160H motor graders, and 966G II wheel loaders), this heavy-duty component aggressively eliminates rough idling, poor fuel economy, and critical power loss under peak breakout force. Built to exact OEM specifications with advanced high-stress metallurgy and precise internal valving, it ensures a true plug-and-play installation. Heavy equipment fleet managers can bypass expensive dealership diagnostic delays, instantly restoring optimal fuel atomization and maximized mechanical torque to keep large-scale construction operations running smoothly.

📊 Part Number Cross Reference

(Data verified via global catalog search – Extensive Interchangeability)

Manufacturer Ref (Bosch Style)	Original Equipment (CAT)
3175278	317-5278 / 20R-0055
208-9160 / 2089160	10R-1264 / 10R1264
170-5240 / 1705240

🚛 Fits Applications (Engine & Vehicle)

(Verified application list)

Make	Model / Application	Engine Size	Year	Engine Code & Specs
CAT	D7R II Track-Type Tractor (Dozer)	Various	Various	C10 / C12 / 3176C
CAT	140H, 143H, 160H Motor Graders	Various	Various	C10 / C12 / 3176C
CAT	966G II Wheel Loader	Various	Various	C10 / C12 / 3176C
CAT	815F, 816F Compactors	Various	Various	C10 / C12 / 3176C

👨‍🔧 Tech Notes & Installation Guide (FAQ)

Q: Why should I replace the full set of 6 injectors on my C10 / C12 engine?

A: Operating heavy motor graders or track-type tractors with a degraded unit injector causes erratic fuel distribution and severe cylinder washing. This directly results in violent engine shaking under heavy earthmoving payloads, increased emissions, and a critical loss of mechanical pushing power. We highly recommend utilizing our Volume Discounts to install a completely synchronized set of 6 units to ensure perfectly matched cylinder firing and instantly restore maximum factory torque.

Q: Does the 3175278 injector require IMA coding?

A: No. This is a heavy-duty MEUI unit injector built for direct drop-in installation. Because it is manufactured to precise mechanical tolerances, it relies on physical actuation via the engine’s camshaft mechanism. It requires zero complex ECU programming or dealership calibration, providing a true plug-and-play solution that drastically reduces equipment downtime on the job site.

Q: What is the critical cleaning step before installation?

A: Earthmoving and compaction environments expose fuel tanks to extreme dust and abrasive contaminants. You must thoroughly flush the entire fuel supply system and install brand-new OEM-spec 5-micron fuel filters before cranking the engine to prevent immediate internal nozzle scoring and firmly protect your warranty.

🔍 Explore More Heavy Duty Parts:

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⚖️ Legal Disclaimer

Part numbers, OE numbers, and brand names mentioned above are for reference and identification purposes only. This product is a compatible aftermarket replacement part and is NOT manufactured, sponsored, or affiliated with the original equipment manufacturers.