A-RE23172-AI Piston

One New Aftermarket Replacement Piston Fits John Deere 4.270 / 6.404D Diesel Engines

This aftermarket replacement piston is designed Fits John Deere 4.270 and 6.404D diesel engines used in early-production tractors, backhoes, combines, and industrial equipment. The piston includes a wrist pin and retaining clips and is engineered to restore proper compression and engine performance. Note: This part applies to early-production engine blocks. Verify your engine serial number and block casting number before ordering to confirm fitment, as later-production engines with the same displacement require different piston part numbers.

Specifications

• Bore: 4.250 in (107.95 mm / 108 mm)
• Includes wrist pin and retaining clips
• For use in Fits John Deere 4.270 and 6.404D diesel engines (early / replacement block)

Compatible Models

Fits John Deere Tractors: 3020 (S/N up to 280000), 4020 (S/N up to 280000), 3010, 4000, 4010

Fits John Deere Backhoes / Construction & Industrial: JD500 (S/N up to 280000), JD500A (S/N up to 123113), JD500B (S/N up to 280000)

Fits John Deere Combines: 105 (6.404D, S/N 3001-19000)

Fits John Deere Industrial / Carrier: JD600

Replaces Part Number(s):

RE23172, A-RE23172-AI

Aftermarket Interchange Numbers

AR40254, AR40265, AR46264, AR46265, HRE-40566, MFX172, NRE40566K, RE40566, R26091, R32073, R39927, 1703P, PA420

New aftermarket replacement part - not remanufactured, not used.