Cushman OMC Engine Parts | X-TREMEDIST.COM › 111038 ONE (1) USED OEM ROCKER ARM OMC 18HP/22HP ENGINE CUSHMAN PART TRUCKSTER HAULSTER RESTORATION. Image 1 of 1 111038 ONE (1) USED OEM ROCKER ARM OMC 18HP/22HP ENGINE CUSHMAN PART TRUCKSTER HAULSTER RESTORATION. $9.99 CONTINUE SHOPPINGFor the OMC air cooled engine 18hp or 22hp only for the cushman truckster/haulster. Get notified by email when this product is in stock. Quantity: Add To Cart Added! CONTINUE SHOPPINGFor the OMC air cooled engine 18hp or 22hp only for the cushman truckster/haulster. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like 111752 ONE (1) USED OEM PUSH ROD HOUSING TUBE OMC 18HP/22HP CUSHMAN PART. $14.99 Sold Out 111751 FOUR (4) NEW OEM NITRILE-70 BUNA-N LARGE O-RINGS OMC 9HP 18HP 22HP CUSHMAN PART. $3.99 111750 ONE (1) NEW OEM BLACK VALVE SPRING OMC 18HP 22HP CUSHMAN PART. $18.99 Sold Out 111966 ONE (1) NEW EXHAUST VALVE OMC TO REPLACE CUSHMAN PART # 111740 OR INTAKE VALVE PART # 111739 . $31.99 111967 ONE (1) NEW OEM EXHAUST VALVE SPRING (MARKED WITH YELLOW PAINT) OMC 18HP/22HP CUSHMAN PART. $16.99 Sold Out