1W5283 Insert-Valve Exh Fits Caterpillar Models model-285 (FR) Oliver: Disc harrow applications using

Oliver: Disc harrow applications using 238481B bearing

Replaces Part Number D2NN983A

Casting numbers 190460 and 155911AS are associated with this pump -- verify your casting number before ordering to confirm fitment

Model 228 GM 5

1W5283 Insert-Valve Exh Fits Caterpillar Models model-285 (FR) Oliver: Disc harrow applications usingOne New Aftermarket Replacement Exhaust Valve Seat Insert for Caterpillar (Cat) 3400 Series Engines and Equipment This exhaust valve seat insert (valve seat insert, exhaust) fits into the cylinder head and provides the precision sealing surface where the exhaust valve seats after each combustion cycle. A worn or damaged exhaust valve seat insert causes compression loss, poor combustion efficiency, and accelerated valve wear making this a critical