Alpha One & Gen 2 Outdrive Parts *Drawings *Videos

Mercruiser Alpha 1 parts drawing *Lower unit 56-77

Lower gearcase part numbers 56 to 77 exploded view outdrive drawing Exploded view Mercruiser Alpha one drawings

87510	A P/N 87510 (Lower unit) seal kit $44.99
12120 Alpha 1 water pump	P/N 12120 Water pump kit (1984-1990) MR/Alpha One $42.99
23140 thrust ring	56 P/N 23140 Thrust ring OEM 68100-1 $13.99
21620 carrier ball bearing	57 P/N 21620 Ball bearing / 30-88957T $44.99
83445 Alpha O-ring	58 P/N 83345 O ring / 25-31534 $7.95
11410 OMC Roller bearing	59 P/N 11410 Bearing / 31-30956 $19.99
11405 bearing carrier	60 P/N 11405 Bearing carrier / 818763A10 $159.99
85130 Oil seal	61 P/N 85130 Oil seal (inside) / 26-14077 $10.99
85700 oil seal	62 P/N 85700 Oil seal (outside) / 26-12224 $15.99
32800 Alpha 1 shim kit washer	63 P/N 32800 Washers / 12-92721 $4.95
11381 tab washer	64 P/N 11381 washer OEM number 14-18323 $14.95
21120 Alpha 1 prop cover nut	65 P/N 21120 Cover nut / 79448 $21.99
21301 thrust hub	66 P/N 21301 Trust hub OEM part number 12-825467 $25.99
21760 lockwasher	67 P/N 21760 Lock-washers / 13-42351-1 $4.95
21360 Tab washer receiver	68 P/N 21360 Tab washer receiver / 12-31211A3 $7.99
21210 Mercruiser Alpha 1 tab washer	69 P/N 21210 Tab washer / 14-31210 $4.00
21230 prop lock nut	70 P/N 21230 Prop nut / 11-827614 $8.95
hardware	70B P/N Propeller hardware parts please click on picture
11120 Alpha 1 drive shaft	71 P/N 11120 Drive shaft (1970 - 1990) / 45-42634 $154.99 71B P/N 11140 Drive shaft (1991 - up) /45-816919, 45-816472, 45-853647 $475.99
21330 slinger	72 P/N 21330 Slinger / 25-30271 $4.95
21490 Alpha 1 outdrive washers	73 P/N 21490 Washer (10 units) / 12-29245 $4.00
11012 Alpha 1 Gen 2 Thrust spacer	74 P/N 11012 Thrust spacer / 23-824108 $4.95
12702 anode	76 P/N 12702 Anode (for prop shaft carrier, 1991 and up) / 806105A1 $39.95
11080 Alpha gen 2 bearing carrier key	77 P/N 11080 Key (1 unit only) 28-30281 $4.00

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