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

The Caterpillar 3408 and 3412 are legendary big-bore V8 and V12 diesel engines powering some of the most demanding machines on earth — including the iconic D9 and D10 series dozers. When diagnostics confirm four faulty injectors, this set of four brand-new fuel injectors gets your machine back to work without the cost of a full replacement set. Each injector is engineered to OEM specifications, restoring precise fuel atomization and consistent combustion across the affected cylinders — recovering lost pushing power, reducing black smoke, and improving fuel efficiency on these high-output engines.

Why Choose This Injector Set?

• Set of 4 — Cost-Effective Partial Replacement — The smart choice when diagnostics confirm four injectors need replacing. Replace exactly what’s needed and save versus a larger set.
• 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 handle the extreme demands of large dozer and heavy industrial operation.
• Restored Fuel Atomization — Precise spray pattern recovers lost pushing power, improves fuel efficiency, and eliminates the black smoke caused by worn or clogged injectors on these high-displacement engines.
• Wide Cross-Reference Coverage — Matches six OEM part number formats across two part number families 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 4 Injectors
• Condition: 100% New Aftermarket
• Compatible Brand: Caterpillar (CAT)
• Equipment Type: Large Crawler Dozers, Heavy Industrial Equipment

Also available as a single injector for targeted replacement, or a 6-piece set for larger partial or full coverage.

Every hour of downtime on a D9 or D10 costs serious money — order today and get your CAT back to full pushing power fast with shipping from Fuel Parts Depot.