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. 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 111750 ONE (1) NEW OEM BLACK VALVE SPRING OMC 18HP 22HP CUSHMAN PART. $18.99 Sold Out 111752 ONE (1) USED OEM PUSH ROD HOUSING TUBE OMC 18HP/22HP CUSHMAN PART. $14.99 Sold Out 111730 ONE (1) USED OEM PUSH ROD OMC 18HP/22HP CUSHMAN PART TRUCKSTER HAULSTER $14.99 111751 FOUR (4) NEW OEM NITRILE-70 BUNA-N LARGE O-RINGS OMC 9HP 18HP 22HP CUSHMAN PART. $3.99 111966 ONE (1) NEW EXHAUST VALVE OMC TO REPLACE CUSHMAN PART # 111740 OR INTAKE VALVE PART # 111739 . $31.99