6-Piece Fuel Injector Set 212-8470 — Complete Replacement for Caterpillar 3064 & 3066 Engines | CAT 311C, 312C, 314C, 318C, 320C, 320D & 321C Excavators

The CAT 320 series is one of the most widely used hydraulic excavators on job sites around the world — and keeping it running at full capacity starts with reliable fuel delivery. When injectors wear out on your 311C, 312C, 314C, 318C, 320C, 320D, or 321C, the performance drop is immediate: sluggish digging response, black smoke, hard starts, and wasted fuel. This complete set of six brand-new fuel injectors restores precise fuel atomization across all cylinders, bringing your CAT excavator back to the powerful, dependable performance your operation demands.

Why Choose This Injector Set?

• Complete Set of 6 — A full matched set ensures balanced combustion and even power delivery across all cylinders for consistent, long-term reliability. No mixing old and new injectors.
• Direct OEM-Equivalent Fit — Engineered to match Caterpillar 3064 and 3066 engine specifications as fitted to the C-series and D-series CAT excavators. Drops in without modifications for a professional installation.
• 100% New Aftermarket Parts — Not rebuilt or remanufactured. Full service life from day one, built to handle the continuous heavy-duty demands of excavator operation.
• Restored Fuel Atomization — Precise spray pattern across all six cylinders recovers lost digging power, improves fuel efficiency, and eliminates the black smoke caused by worn or clogged injectors.
• Broad CAT Excavator Coverage — Fits seven popular CAT C-series and D-series excavator models powered by the 3064 and 3066 engines, making it easy to confirm the right part for your machine.

Compatible Part Numbers

212-8470 | 2128470

Compatible CAT Engines & Excavators

Engines: CAT 3064 | CAT 3066

Excavators: CAT 311C | 312C | 314C | 318C | 320C | 320D | 321C

Product Details

• Part Number: 212-8470 / 2128470
• Quantity: Set of 6 Injectors
• Condition: 100% New Aftermarket
• Compatible Brand: Caterpillar (CAT)
• Equipment Type: Hydraulic Excavators, Construction Equipment

Every hour of downtime on a job site costs money. Restore your CAT excavator to full digging power with a complete matched injector set — order today and ship fast from Fuel Parts Depot.