2021 Parts Unlimited Offroad

ENGINE parts-unlimited.com 2021 PARTS UNLIMITED OFFROAD BOLD MAGENTA part numbers are new for 2021 1050 DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION. HIGH-PERFORMANCE PISTONS (CONT) FITS MODEL BORE (MM) X STROKE (MM) DISPL. (CC) BORE SIZE (MM) OVER SIZES (MM) PK KIT PART # PISTON PART # REPL. RING SET PART # REPL. CIRCLIPS PART # REPL. WRIST PIN PART # TOP‑END BEARING PART # HONDA MOTORCYCLE 4‑STROKE (Correct replacement ring style is stamped on dome of piston – Example “C” for XC, “G” for XG and “H” for XH) (CONT) XR500 79‑82 89 497 89.0 STD - - 3504XC CW21 S527 - XL500 79‑82 x 89.5 0.5 - 4163M08950 3524XC FT500 82‑84 80 90.0 1.0 - 4163M09000 3544XC 12:1 Compression XR500R 83‑84 92 498 92.0 STD - 0910-2903 3622XC CW22 - - Radial Head x 92.5 0.5 - 4330M09250 3642XC 10.25:1 Compression 75 93.0 1.0 - 4330M09300 3661XC XL600R 83‑87 100 589 100.0 STD - - 3937XH CW24 - - Radial Head x 101.0 1.0 - 4332M10100 3977XH 11:1 Compression 75 XR600R 85‑01 97 591 97.0 STD - 4577M09700 3819XH CW24 - - Radial Head x 97.5 0.5 - 4577M09750 - 9:1 Compression 80 98.0 1.0 - 4577M09800 - *88‑90 model has Nikasil Bore ‑ Cylinder sleeving or replating required for oversizes XR600R 85‑01 97 591 97.0 STD - - 3819XH CW24 - - Radial Head x 97.5 0.5 - 4366M09750 - 11:1 Compression 80 100.0 3.0 - 0910-0760 3937XH *88‑90 model has Nikasil Bore ‑ Cylinder sleeving or replating required for oversizes XR650L 93‑17 100 650 100.0 STD - 0910-0337 3937XH CW24 - - 100‑101mm 8.7:1 compression x 101.0 1.0 - 4562M10100 3977XH 102.41mm 9:1 compression 82 102.4 2.40 - 0910-0338 - Cylinder boring required for oversizes XR650L 93‑17 100 650 100.0 STD - 0910-2939 3937XH CW24 - - 10.5:1 Compression x 101.0 1.0 - 0910-2940 3977XH ArmorGlide skirt coated 82 102.4 2.40 - 0910-2941 - XR650R 00‑07 100 644 100.0 STD - 4715M10000 - CW23 - - 10:1 Stock Compression x 82.6 XR650R 00‑07 100 644 100.0 STD - 0910-2921 - CW23 - - 11:1 Stock Compression x 102.36 2.4 - 0910-2922 Cylinder boring required for oversizes 82.6 HUSABERG 2‑STROKE TE 125 12‑14 54 124 54.0 STD - 786M05400 2126CS CW15 - B1013 Pro‑Lite x 56.0 2.00 - 786M05600 2205CS *Nikasil Bore ‑ Cylinder sleeving or 54 replating required for oversizes TE 250 13‑14 66.4 249 66.4 STD - 824M06640 0912-0106 CW18 S-508 B1037 Pro‑Lite x Single Ring 72 TE 250 13‑14 66.4 249 66.40 STD - 0910-0778 2614CD CW18 S-508 B1037 Pro‑Lite x Double Ring 72 TE 300 13‑14 72 297 72.0 STD 0903-1164 0910-0779 2835CD CW18 S-477 - Pro‑Lite x Double Ring 73 HUSABERG 4‑STROKE FE 250 13 76 249.5 76 STD 0903-0934 0910-0846 - - - - ArmorGlide skirt coated x 12.8:1 Std. Compression 55 FE 250 13 76 249.5 76 STD - 0910-0848 - - - - ArmorGlide skirt coated x 262.8 13:1 High‑Compression 55 FE 350 13‑15 88 350 88.0 STD 0903-1139 0910-2897 - CW18 - - 12.3:1 Stock Compression x ArmorGlide skirt coated 57.5 FE350 13‑14 88 350 88.0 STD 0903-1140 - - CW18 - - x 57.5 FE 450 13‑14 95 ‑ 95.0 STD 0903-1145 0910-3927 - CW19 - - 11.8:1 Stock Compression x ‑ 72 FE 501 13‑14 95 ‑ 95.0 STD 0903-1145 0910-3927 - CW19 - - 11.8:1 Stock Compression x 72