6-Piece Fuel Injector Set 4W-7019 — Complete Replacement for Caterpillar 3408 & 3412 Engines | D9L, D9N & D10N Dozers

The Caterpillar 3408 and 3412 are legendary V8 and V12 powerplants — found in some of the most demanding heavy equipment on earth, from D9 and D10 bulldozers to large industrial generators and marine applications. When injectors wear out on these high-displacement engines, the performance drop is significant. This complete set of six brand-new fuel injectors restores precise fuel delivery across all cylinders, bringing your CAT equipment back to the raw, reliable power these engines are built to deliver.

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 3408, 3408B, 3408C, 3412, 3412B, and 3412C engine specifications. Drops in without modifications for a professional installation.
• 100% New Aftermarket Parts — Not rebuilt or remanufactured. Full service life from day one, built to withstand the extreme demands of large-displacement CAT engine operation.
• Restored Fuel Atomization — Precise spray pattern across all cylinders recovers lost horsepower, improves fuel efficiency, and eliminates the black smoke and rough running caused by worn injectors.
• Wide Cross-Reference Coverage — Matches six OEM part number formats for easy verification and confident ordering.

Compatible Part Numbers

4W-7019 | 4W7019 | CA4W7019 | 0R-3536 | 0R3536 | CA0R3536

Compatible CAT Engines & Equipment

Engines: CAT 3408 | 3408B | 3408C | 3412 | 3412B | 3412C

Dozers: CAT D9L | D9N | D10N

Product Details

• Part Number: 4W-7019 / 4W7019
• Quantity: Set of 6 Injectors
• Condition: 100% New Aftermarket
• Compatible Brand: Caterpillar (CAT)
• Equipment Type: Bulldozers, Large Industrial Equipment, Marine, Generators

These engines are built to move mountains — don't let worn injectors hold them back. Order the complete set today and restore full power to your CAT equipment — fast shipping from Fuel Parts Depot.