AR78122 TO4B11 Turbocharger Replacement for John Deere 6404A

The AR78122 TO4B11 turbocharger is an aftermarket replacement unit designed for John Deere 6404A engine applications. This assembly serves as an aftermarket replacement part for the John Deere Tractor 4630, with OEM reference numbers such as 408970-0003 provided to help buyers verify fitment against their specific equipment documentation.

Key Specifications

• Part Number: AR78122
• Product Type: Turbocharger
• Turbo Model: TO4B11
• Application Clue: John Deere 6404A engine
• OEM Reference Numbers: 408970-0003, 408970-3, 408970-5003, 408970-9003
• Packing Dimensions: 21 x 23 x 26 cm
• Gross Weight: 10 kg

These specifications help buyers verify the physical unit and cross-check part numbers against their equipment documentation before ordering.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

• JOHN-DEERE > JOHN-DEERE TRACTOR 4630 > JOHN-DEERE 6404A

The AR78122 TO4B11 turbocharger is listed for John Deere 6404A engine applications, including the John Deere Tractor 4630. These application clues help buyers identify the correct replacement unit for their specific equipment.

• Application Path: John Deere > John Deere Tractor 4630 > John Deere 6404A
• OEM Reference Numbers: 408970-0003, 408970-3, 408970-5003, 408970-9003

Buyers should verify the part number, engine code, and production year against their equipment documentation. Cross-checking the OEM reference numbers helps confirm fitment before ordering. Technical fitment support is available to assist with verification.

Technical Notes

The TO4B11 turbocharger is a fixed-geometry unit, so installation does not require VNT vane inspection. Verify the actuator related electrical detail type and voltage rating against the John Deere 6404A harness before mounting. Confirm the turbine and compressor housings are free of debris and that the oil supply and return lines are clean. Check the gasket surfaces for damage and ensure the exhaust manifold is properly aligned to prevent stress on the turbine housing. Use the OEM reference numbers 408970-0003 and 408970-3 to cross-check the unit against your specific engine documentation. Technical fitment support is available to assist with these verification steps.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the AR78122 TO4B11 turbocharger. Worldwide shipping is available for this 10 kg unit, which ships in a 21 x 23 x 26 cm carton. Technical fitment support is available to help verify the part number, engine application, and OEM reference numbers such as 408970-0003 before ordering. Contact our team for bulk inquiries or to confirm specific John Deere 6404A application details.