OS ENGINES

OSM45903400 O.S. Piston Ring FS-91-P Note: Graves RC Coupons are not applicable with this product     This is the stock replacement Piston Ring for the FS91-S, and 91S II.This is...

OSM45808000 OS ENGINES DRIVE WASHER FS48, OS52SUR Note: Graves RC Coupons are not applicable with this product     This washer goes directly behind the propeller and has grooves that...

OSM45761200 O.S. Tappet Screw FS-20/48 Note: Graves RC Coupons are not applicable with this product     This is the replacement tappet screw for the following OS engines:FS26...

OSM45630000 OS CRANKSHAFT Rear Bearing FS61 Note: Graves RC Coupons are not applicable with this product     This is the Rear Bearing for the OS Max FS-61 Engine. INCLUDES One...

OSM45605000 OS CONNECTING ROD FS61,61M,70S,91 Note: Graves RC Coupons are not applicable with this product     This is the replacement connecting rod for the O.S. FS61, FS61-M, FS70...

OSM45581820 OS CARB Rotor Guide Screw F90-300 Note: Graves RC Coupons are not applicable with this product     This is the replacement rotor guide screw for the following O.S...

OSM45566300 OS O Ring Large FF FT 120-320 Note: Graves RC Coupons are not applicable with this product     This is a pair of Large pushrod O-rings for the O.S. FF-320 Pegasus,...

OSM45566000 OS Pushrod FT-120-240 Note: Graves RC Coupons are not applicable with this product     This is the pushrod for the listed engine. The pushrod movesup an down to close the...

OSM45526200 O.S. Exhaust Joint 120 Surpass Note: Graves RC Coupons are not applicable with this product     This is the replacement Exhaust Joint for the following OS engines:FS-120...

OSM45508200 OS WOODRUFF KEY FS120,140,160,320 Note: Graves RC Coupons are not applicable with this product     The Woodruff Key is a small, semi-disk that locks the Drive Washer to...

OSM45361000 O.S. Rocker Arm Assembly F61-300 Note: Graves RC Coupons are not applicable with this product     This is a replacement parts set for the O.S. FS-61, FS-70 Surpass,...

OSM45281700 O.S. Carburetor Screw FS-20 Note: Graves RC Coupons are not applicable with this product     This item is the screw that holds the carb to the engineon the O.S. FS20, FS40...