Piston Ring Set 4-Cylinder 4" Bore Fits Massey Harris GP 4WD Tractors 1/8" NPT to 1/4" Compression:

1/8" NPT to 1/4" Compression: JJS3577

Quality Aftermarket: Carb Nozzle

Pins & Grease

Mounting tabs are on the ends of the cutout

Must reuse main adjusting needle

Piston Ring Set 4-Cylinder 4" Bore Fits Massey Harris GP 4WD Tractors 1/8" NPT to 1/4" Compression:Quality Aftermarket Piston Ring Set Fits Massey Harris MH: GP 4WD Tractors w Hercules OOC Engine Specifications 4"" bore (3) 0. 125"" compression rings (1) 0. 187"" oil ring Measure old rings before purchasing. Do not order by tractor model only. Due to the many different piston manufacturers, there can be as many as 8 different ring sets available for one particular engine. To ensure you order the correct rings, we will need the following