Replaces John Deere OEM Number(s) AA6819R. Compatible with John Deere Engine(s) 303 (gas). Compatible with John Deere Tractor(s) 620, 630 (both gas). Compression Rings per Piston: (4) @. 125″. Oil Rings per Piston: (2) @. 250″.

Replaces John Deere OEM Number(s) AA6819R. Compatible with John Deere Engine(s) 303 (gas). Compatible with John Deere Tractor(s) 620, 630 (both gas). Compression Rings per Piston: (4) @. 125″. Oil Rings per Piston: (2) @. 250″.