The Cummins 6C8.3, 6CT8.3, and 6CTA are 8.3L inline-6 diesel engines from Cummins' proven C-series — widely used in medium-duty trucks, buses, coaches, construction equipment, and marine applications worldwide. The fuel injection pump is the heart of the fuel system, responsible for delivering precisely metered, high-pressure fuel to each cylinder. When it fails, you'll experience hard starts, rough running, loss of power, excessive smoke, and in severe cases complete engine shutdown. This brand-new aftermarket Bosch-type injection pump covers five cross-reference part numbers including Cummins OEM 3922471 and Bosch 0402736834, engineered to restore correct fuel delivery and engine performance.

✅ Direct-Fit Compatibility

• Cummins Engines: 6C8.3, 6CT8.3, 6CTA (8.3L inline-6 C-series)
• Suitable for medium-duty trucks, buses, coaches, construction equipment, and marine applications fitted with these Cummins engines
• Direct replacement — no modifications required

🔧 Product Highlights

• 100% Brand New Aftermarket: Not rebuilt or refurbished — starts with a full service life
• Bosch-Type Injection Pump: OEM-spec fuel delivery, injection timing, and pressure for the Cummins C-series fuel system
• Direct Drop-In Fit: No modifications required; installs like the original
• 5 Cross-Reference Part Numbers: Covers Cummins OEM (3922471, 3922471RX) and Bosch (0402736834, 0402736834DR) formats for confirmed fitment
• Restores Full Engine Performance: Eliminates hard starts, rough running, and power loss caused by a failed injection pump
• No Dealer Markup: OEM-equivalent quality at aftermarket pricing

📦 What's Included

• 1 × Fuel Injection Pump (3922471 / 0402736834)

🔑 Key Specs

• Part Numbers: 3922471, 3922471RX, 0402736834, 0-402-736-834DR, 0402736834DR
• Condition: 100% New Aftermarket
• Fitment: Cummins 6C8.3 / 6CT8.3 / 6CTA engines (8.3L C-series)

Please verify your engine serial number and existing part number before ordering. Contact us for fitment confirmation if needed.