A-R51112-AI Retainer, Piston Pin

One New Aftermarket Replacement Piston Pin Retainer (Snap Ring) Fits John Deere Engines

This piston pin retainer is an internal snap ring that secures the piston pin (wrist pin) within the piston bore, preventing lateral movement during engine operation. It is used during engine rebuilds and overhaul service on Fits John Deere equipment. Replaces OEM part number R51112.

Specifications

• Type: Internal snap ring (piston pin retainer)
• Free Outer Diameter: 33.55 mm (1-5/16 in)
• Bore Diameter: 30.18 mm (1.19 in)
• Width: 1.98 mm (0.08 in)
• Groove Diameter: 33.55 mm (1-5/16 in)
• Material: General steel

Replaces Part Number(s):

R51112, A-R51112

Verify fitment against your engine model and serial number before ordering. This snap ring is used across a range of Fits John Deere (Fits JD) engine applications - consult your engine parts manual or dealer to confirm compatibility with your specific machine.

New aftermarket replacement part - not remanufactured, not used.