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 All part numbers in BLUE are new for 2026. SECTION 7 572 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”. DESCRIPTION PISTON KIT PART # REPL. RING SET PART # FOR 07-15 TWIN CAM 96 BORED TO 1746CC (106 CU. IN.) VM-RING PACKAGE (10.5:1 COMP.) 3.75” bore 0903-15941, 2 0912-0927 FOR 07-15 TWIN CAM 96 BORED TO 1691CC (103 CU. IN.) VM-RING PACKAGE (10.5:1 COMP.) 3.875” bore 0903-15651, 3 0912-0931 3.885” bore 0903-15661, 3 0912-0932 3.895” bore 0903-15671, 3 0912-0933 FOR 99-06 TWIN CAM 88 BORED TO 95 CU. IN. VM-RING PACKAGE (9.5:1 COMP.) 3.875” bore 0903-15581 - 3.885” bore 0903-15591 0912-0932 3.895” bore 0903-15601 0912-0933 DESCRIPTION PISTON KIT PART # REPL. RING SET PART # FOR 99-06 TWIN CAM 88 BORED TO 95 CU. IN. VM-RING PACKAGE (10.5:1 COMP.) 3.875” bore 0903-15611 - 3.885” bore 0903-15621 0912-0932 3.895” bore 0903-15631 0912-0933 FOR 99-06 TWIN CAM 88/95 BORED TO 97 CU. IN. VM-RING PACKAGE (10.5:1 COMP.) 3.93” bore 0903-15641 0912-0927 1 Requires aftermarket EFI tuner on fuel injected models. 2 Fit Twin Cooled cylinder heads. 3 Fit Screamin’ Eagle cylinder heads 11-15. TRACKER™ SERIES PISTON KITS •Forged piston crown with generous valve pockets for big valves and cams •Precision-fit rings selected for each application for ultimate sealing •Force-fed pin oiling provides enhanced lubrication of the piston pin •Pressure seal groove reduces ring lifting and power loss • ArmorGlide® skirt coating reduces friction, providing quieter operation and improving scuff resistance •Value-packaged with two pistons, rings, piston pins and circlips •Made in the U.S.A. DESCRIPTION PISTON KIT PART # REPL RINGS PART # FOR 17-25 M-EIGHT (107”) 3.937” bore x 4.375” stroke, 107 cu. in.; positive dome (+4.2cc) 0903-1551 0912-0927 4.080” bore x 4.375” stroke, 114 cu. in.; positive dome (-2cc) 11:1 compression 0903-1552 0912-0928 4.125” bore x 4.375” stroke, 117 cu. in.; flat top (+4cc) 11:1 compression 0903-1553 0912-0929 4.250” bore x 4.375” stroke; 124 cu. in.; dished (-9cc) 11:1 compression 0903-1554 0912-0930 FOR 17-25 M-EIGHT (114”/117”) 4.016” bore x 4.5” stroke, 114 cu. in.; negative dome (-3.3cc) 11.1 compression 0910-6943 0912-0935 4.075” bore x 4.5” stroke, 117 cu. in.; negative dome (-0.6cc) 11:1 compression 0910-6944 0912-0928 4.080” bore x 4.5” stroke, 118 cu. in.; negative dome (-2.6cc) 11.3:1 compression 0910-6945 - 4.135” bore x 4.5” stroke, 121 cu. in.; negative dome (-0.5cc) 11.3:1 compression 0910-6946 0912-0936 BLACK EDITION PISTON KITS FOR M-EIGHT •Features ArmorX™ piston coating for superior protection in extreme conditions and reduced wear •ArmorFit™ skirt coating auto-adjusts to the cylinder wall so there’s no need to measure clearance; provides smooth, quiet, trouble-free operation •Dome design for improved flame travel to maximize air/fuel burn efficiency •High compression for added power •Superfinish piston pin reduces friction and improves scuff resistance •Enhanced pin oiling for improved lubrication and reduced friction •Augmented ring land details improve ring seal and function •Dedicated rings for precise fit, improved compression and oil control 0903-1551 0903-1558 •Fits OEM and Screamin’ Eagle cylinder heads (unless noted) •Kit includes two pistons, rings, piston pins and circlips •Made in the U.S.A.
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