Direct replacement for OEM OK501-20/20

4250 and more - Replaces OEM Number AH21762

D61PX-23 - Replaces OEM Number 12Y-979-1140

Suction Hose - Compressor End for John Deere replaces OEM numbers RE302510

3/4" female NPT outlet

Maxiforce Basic Engine Kit, Standard Pistons, Standard Main Bearings, .010" Rod Bearings, 4.318 for Perkins BK490 W54247 Direct replacement for OEM OK501-20/20Aftermarket Basic Engine Kit. Direct replacement for OEM BK490 STD 10. Please verify fitment against your equipment's serial and engine casting numbers before ordering. Cross references are provided as a guide; the customer is responsible for confirming compatibility.