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 772 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”. FOR 12-17 103” TWIN CAM AND 07-13 96” TWIN CAM BIG BORE 103” (COATED SKIRTS) BORE 10:1 COMP. PISTONS REPLACEMENT RINGS # Std. (3.875”) 0910-0915 DS-750692 +0.005” 0910-0916 DS-750693 +0.010” 0910-0917 DS-750694 FOR 99-06 95” TWIN CAM BIG BORE BORE 10.5:1 COMP. PISTONS 9.3:1 COMP. PISTONS REPLACEMENT RINGS # Std. (3.875”) DS-751286 DS-751281 DS-750874 +0.005” DS-751287 DS-751282 DS-750875 +0.010” DS-751288 0910-2020 - FOR 86-20 XL883 TO 1200 CONV BORE (REVERSE DOME) 10:1 COMP. PISTONS Std. (3.498”)1 DS-751253 +0.005”1 DS-751264 +0.010”1 DS-751254 +0.020”1 DS-751255 1 08-18 models require using 1200cc cylinders FOR 88-03 XL1200 BORE (FLAT TOP) 9:1 COMP. PISTONS REPLACEMENT RINGS # Std. (3.498”) DS-751235 DS-750840 +0.005” DS-751236 DS-750653 +0.010” DS-751237 DS-750841 +0.020” DS-751238 DS-750842 +0.030” - DS-750843 FOR 99-06 88” TWIN CAM BORE 10.5:1 COMP. PISTON # (FLAT TOP) 8.8:1 COMP. PISTON # REPLACEMENT RINGS # Std. (3.750”) 0910-6092 0910-6087 DS-7508691 +0.005” 0910-6093 0910-6088 - +0.010” 0910-6094 0910-6089 - +0.020” 0910-6095 0910-6090 - +0.030” - 0910-6091 - 1 Ring set is for one piston only. PART # DESCRIPTION 0913-0001 Wrist pin lock ring 0913-0002 Wrist pin lock ring for Twin Cam KB PERFORMANCE HYPEREUTECTIC PISTON KITS •Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy •Allows a tighter fit and longer piston and ring life •Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (0.0005”) tolerances from piston to piston •Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings •Replacement piston rings available separately •Piston pin lock rings available separately; PART #0913-0001 is for 0.791” and 0.792” wrist pins; PART #0913-0002 fits 0.927” wrist pins NOTE: KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance. NOTE: Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation. NOTE: Each replacement ring PART # denotes rings for two pistons, except 99-06 88” Twin Cam kits, which require two sets. 0910-0915 NOTE: Use lock rings PART #0913-0002 (4 pk.). NOTE: Use lock rings PART #0913-0002 (4 pk.). NOTE: Use lock rings PART #0913-0001 (4 pk.).
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