Fuel Injection Pump for Cummins 6C / 6CT / 6CTA 8.3L Engine — 3922425 / 0402736845

The Cummins 6C series — including the 6C8.3, 6CT, and 6CTA — is one of the most trusted diesel engine families in construction equipment, marine vessels, and industrial machinery worldwide. When its injection pump fails, you're facing hard starts, severe power loss, excessive smoke, and a machine that can't do its job. This brand-new aftermarket injection pump is a direct bolt-on replacement for part numbers 3922425 and 0402736845, precision-calibrated to restore OEM fuel pressure, injection timing, and delivery volume. Get your Cummins-powered equipment back to full operation — fast.

Why Replace Your Injection Pump?

The injection pump is the heart of the Cummins 6C fuel system. A failing pump starves the engine of properly pressurized fuel, causing hard starts, loss of power under load, black or white smoke, and increased fuel consumption. Left unaddressed, low fuel pressure accelerates injector wear and can cause engine damage far more costly than the pump itself. At ~$1,000, this is a high-value repair that protects a much larger engine and equipment investment.

Compatible Cummins Engines

• Cummins 6C8.3
• Cummins 6C
• Cummins 6CT
• Cummins 6CTA

OEM Cross-Reference Part Numbers

3922425 | 3922425RX | 0402736845 | 0-402-736-845 | 0 402 736 845

What's Included

• 1 × Fuel Injection Pump (3922425 / 0402736845)

Key Specs

• ✅ 100% Brand New Aftermarket — Not remanufactured or refurbished
• ✅ OEM-Spec Calibration — Correct injection timing, fuel pressure, and delivery volume for the 6C series
• ✅ Direct Bolt-On Fit — No modifications required; installs like the original
• ✅ Broad Engine Family Coverage — Fits 6C, 6CT, and 6CTA variants in a single part number
• ✅ Bosch Cross-Reference Included — Replaces Bosch 0402736845 for easy identification
• ✅ Protects Downstream Components — Proper fuel pressure prevents accelerated injector wear and rail damage

Please verify your engine serial number and existing part number before ordering. The Cummins 6C series was used across a wide range of equipment and applications — contact us for fitment confirmation if needed.