dragspecialties.com All part numbers in BLUE are new for 2025. SECTION 7 WINDSHIELDS & FAIRINGS AUDIO, COMMUNICATION & MOUNTS SADDLEBAGS & LUGGAGE SEATS & SISSY BARS FUEL/AIR SYSTEMS EXHAUST TRANSMISSION & DRIVELINE ENGINE GASKETS & SEALS LIGHTING ELECTRICAL HANDLEBARS, CONTROLS & MIRRORS CABLES TANKS & OIL FILTERS BRAKES DASHES & GAUGES FENDERS & LICENSE PLATE FRAMES HARDWARE, COVERS & GENERAL FRAMES & SUSPENSION FOOTRESTS & FLOORBOARDS WHEELS & AXLES 774 See OLDBOOK For Early Model Applications DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 5-7 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. MONSTER BIG BORE PISTON KITS •Top-quality, custom-forged piston kits manufactured with high-strength aluminum alloy •Includes pistons with skirt coating, rings, chrome piston pins and retainer clips •Features superior ring seal, bore compatibility, quiet running and longer lifespan •M-Eight 139”/143” pistons have line-to-line coated skirts for zero install clearance •High-tech manufacturing ensures greater operating strength and lower expansion at high temperatures •High-tension compression rings with 3 mm oil scrapper rails •Offset pin design for smoother operation •Replacement rings sold separately; ring set is for a single piston •Made in the U.S.A. NOTE: Piston kits are intended for use with Revolution Monster Big Bore Kits only. NOTE: Not recommended for use with cast-iron cylinders. PART # DESCRIPTION 143” PISTON KIT FOR 17-24 M-EIGHT 114”/117” (4 1/2” BORE; 4 1/2” STROKE; 11.3:1 FLAT-TOP) 0910-6383 Piston kit 0912-0920 Repl. rings 139” PISTON KIT FOR 17-24 M-EIGHT 107” (4 1/2” BORE; 4 3/8” STROKE; 11.1:1 FLAT-TOP) 0910-6382 Piston kit 0912-0920 Repl. rings 131” PISTON KIT FOR 99-17 TWIN CAM (4 1/4” BORE; 4 5/8” STROKE; 11.4:1 FLAT-TOP) 0910-6379 Piston kit 0912-0917 Repl. rings 124” PISTON KIT FOR 99-17 TWIN CAM (4 1/4” BORE; 4 3/8” STROKE; 11.2:1 FLAT-TOP) 0910-6378 Piston kit 0912-0917 Repl. rings PART # DESCRIPTION 117” PISTON KIT FOR 99-17 TWIN CAM (4 1/8” BORE; 4 3/8” STROKE; 11.2:1 DOMED) 0910-6377 Piston kit 0912-0919 Repl. rings 117” PISTON KIT FOR 99-17 TWIN CAM (4 1/8” BORE; 4 3/8” STROKE; 10.6:1 DISHED) 0910-6376 Piston kit 0912-0919 Repl. rings 90” PISTON KIT FOR 91-20 XL (3 7/8” BORE; 3 13/16” STROKE; 10.8:1 FLAT-TOP) 0910-6388 Piston kit 0912-0922 Repl. rings 0910-6376 0910-6377 0910-6383 0912-0920
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