Targeted Injector Repair for Your CAT 315, 315B or D5G — One Cylinder at a Time

When one injector fails on your Caterpillar equipment, you don't always need to replace the full set. This single Fuel Injector (Part# 128-3293 / 1283293) is precision-engineered for the Caterpillar 3046 diesel engine, delivering the exact spray pattern and injection timing your combustion chamber demands — whether you're doing a targeted repair or keeping a spare on the job site for fast turnaround.

Fits:

• Caterpillar 315 Excavator (CAT 3046 Engine)
• Caterpillar 315B Excavator (CAT 3046 Engine)
• Caterpillar D5G Dozer (CAT 3046 Engine)

Why Choose This Injector?

• ✅ Dual OEM part number match — replaces both 128-3293 and 1283293 for verified CAT fitment
• ✅ Precision spray pattern control — meters pressurized fuel with exacting accuracy for efficient fuel-air mixing and responsive throttle under heavy construction loads
• ✅ Consistent injection characteristics — maintains smooth engine operation, fuel economy, and emissions control across all operating conditions
• ✅ Built for heavy equipment demands — withstands continuous high-pressure cycling and thermal stress of sustained excavation and dozing operation
• ✅ Direct drop-in fit — no modifications required; installs straight into the CAT 3046 cylinder head
• ✅ 100% new, aftermarket quality — not remanufactured or refurbished

Specs:

• Condition: 100% New
• Type: Aftermarket
• Quantity: 1 Piece
• Part Numbers: 128-3293 / 1283293
• Application: CAT 3046 Engine — 315, 315B Excavator, D5G Dozer

Replacing all six cylinders? Check out our 6-piece injector set for the CAT 3046 — available separately for better per-unit value and a complete engine refresh in one job.

Order now and get your CAT back to work without delay.