Sierra Marine Parts Catalog

452 ➀ Requires 2 ➁ Shift Shaft Retainer ➃ Fits most applications OUTBOARD — MERCURY/MARINER - Powerhead Seals/O-Rings LOWER UNIT O-RING APPLICATION Model Beginning Serial # Ending Serial # Lower O-Ring Lower Oil Seal Upper O-Ring Upper Oil Seal V-200 EFI (2.5L) C291520 & UP 18-0860 18-2016 18-0858 18-2016 V-200 DFI G386496 & UP 18-0860 N/A 18-7414 N/A V-200 PRO XS B504989 & UP 18-0860 N/A 18-7414 N/A V-200 LASER B117316 & UP 18-0860 18-2016 18-0858 18-2016 V-225 (2.4L) 5628028 & UP 18-0860 18-2016 N/A 18-2016 V-225 (3.0L) SEA PRO / MARATHON CARB G245605 G303045 18-0860 N/A 18-7414 N/A V-225 (3.0L) SEA PRO / MARATHON CARB G303046 & UP 18-0860 N/A 18-7414 N/A V-225 DFI G590000 & UP 18-0860 N/A 18-7414 N/A V-225 PRO XS B104549 & UP 18-0860 N/A 18-7414 N/A V-225 EFI G129222 G303045 18-0860 N/A 18-7414 N/A V-225 EFI G303046 & UP 18-0860 N/A 18-7414 N/A V-250 w/o UPPER BEARING FITTING C101891 & UP N/A N.L.A 18-7414 18-2016 V-250 w/UPPER BEARING FITTING C101891 & UP N/A N.L.A 18-7414 18-2016 V-250 EFI G129222 G303045 18-0860 N/A 18-7414 N/A V-250 EFI G303046 & UP 18-0860 N/A 18-7414 N/A V-250 DFI B528615 & UP 18-0860 N/A 18-7414 N/A V-250 PRO XS B426561 & UP 18-0860 N/A 18-7414 N/A V-275 CARB w/o UPPER BEARING FITTING C101891 & UP N/A N.L.A 18-7414 N/A V-275 CARB w/UPPER BEARING FITTING C101891 & UP N/A N.L.A 18-7414 N/A V-300 (3.4L) 5611648 & UP N/A N.L.A 18-7414 N/A POWERHEAD SEALS & O-RING APPLICATION HP Beg. S/N End S/N Bearing Carrier Water Pump Base Shift Shaft Drive Shaft 3.9 1655013 2498135 18-7121 18-7156 18-7180 18-7168 4 2498136 5589201 18-7121 18-7156 18-7180 18-7168 4/4.5 5589203 A809601 18-7171 18-7156 18-7180 - 6 1408611 2529894 18-7171 18-7156 18-7180 18-7168 6 A197112 UP 18-7162 - - - 7.5 2529895 3801457 18-7171 18-7156 18-7180 18-7168 7.5 3801458 5206549 18-7171 18-7156 18-7180 - 7.5 5206550 UP 18-7171 18-7156 18-7180 18-7116 8 A197112 UP 18-7162 - - - 9.8 1470349 3795657 18-7171 18-7156 18-7180 18-7168 9.8 3795658 5206549 18-7171 18-7156 18-7180 - 9.8 5206550 UP 18-7171 18-7156 18-7180 18-7116 9.9/15 A197112 UP 18-7162 - - - 18 5837437 6443972 - 18-7419 - - 20 1558310 1866494 18-7163 18-7164 18-7180 18-7180 20 1866495 6443972 18-7163 18-7164 18-7180 18-7180 25 5705532 6443972 - 18-7419 - - 18/20/25XD 6443973 UP - 18-7419 18-7135 ➁ - 30 1271885 1356947 18-7152 18-7115 18-7153 - 30 G055314 UP - - 18-7155 ➁ - MK 35A 1217222 1271884 18-7152 18-7115 18-7153 - 35 1356948 1448139 18-7152 18-7115 18-7153 - 35 1571114 1960826 18-7160 18-7155 18-7153 - 35 1960827 2874703 18-7160 18-7155 18-7153 - 35 6445653 UP 18-7160 18-7115 18-7153 - 40 1279685 2874703 18-7152 18-7115 18-7153 - 40 2874704 3336257 18-7160 18-7155 18-7153 - 40 3336258 4117709 18-7160 18-7155 18-7153 - 40 4117710 4860102 18-7160 18-7155 18-7153 - 40 4860103 6445652 18-7160 18-7115 18-7153 - 40 4cyl C159200 G053313 18-7160 18-7115 18-7153 - 40 2cyl G055314 UP - - 18-7155 ➁ - 45 1476510 1531568 18-7160 18-7155 18-7153 - 45 4cyl 5531630 UP 18-7160 18-7115 18-7153 - 50 1421113 1639472 18-7152 18-7155 18-7153 - 50 1639473 1770178 18-7160 18-7155 18-7153 - ➀ Requires 2 ➁ Shift Shaft Retainer ➃ Fits most applications