Alpha One & Gen 2 Outdrive Parts *Drawings *Videos

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Mercruiser Alpha One gen 2 water pump impeller kit

Lower unit impeller and gasket service kit

  • Alpha One water pump kit for Mercruiser Generation 2 outdrive models
  • Use with years 1991 - up (serial numbers OD469859 - up)
  • Kit includes carrier assembly P/N 12341 (OEM 807929A1)
  • When installing water pump kit gaskets, make sure to use a gasket sealant (shown below)
  • For outdrive seal kits, click here
  • Exploded view Mercruiser drawing please click here

12080 Impeller kit Mercruiser Alpha One Gen 2 Outdrive

12080 Impeller kit Mercruiser Alpha One Gen 2 Outdrive

P/N 12080 Impeller kit with carrier $66.99

Parts included:

P/N 12500 Wear plate OEM 817276-1
P/N 30090 Gasket OEM 27-43033-1
P/N 89630 OEM 47-43026T2
P/N 12341 Carrier assembly OEM 807929A1
P/N 31240 OEM 27-817277

Alpha One Gen 2 water pump kits

12043 47-43026Q06

12043

12043 Impeller kit OEM 47-43026K06

12043 Impeller kit OEM 47-43026K06

*Most popular* P/N 12043 Impeller kit for Mercruiser 1991 and up models.
Impeller $37.95

Includes coupling assembly P/N 12824 #816597A1
(1991 and up) S/N OD469859 and up

Parts included:
P/N 89630 / 47-43026T2
P/N 12824 / 816597A1 Coupling assembly
P/N 12500 / 817276-1 Wear plate
P/N 30090 / 27-43033-1 Gasket
P/N 82110 / 25-21836 O Ring
P/N 85590 / 26-816575A2 Seal
P/N 31240 / 27-817277 Gasket

*Does not include pump base, copper guide tube / water tube

89630 Alpha 1 Gen-2 1991 up

89630 Alpha 1 Gen 2 1991 up

P/N 89630 Mercruiser water pump impeller. Replaces 47-43026-2, Sierra 18-3056 and Mallory 9-45307. $15.95

817275Q4
Mercruiser 817275Q4

P/N 12414 Most popular complete rebuild set. Replaces 817275T4. $109.95
Includes metal water pump housing P/N 12413 Generation 2 - Mercruiser (1991 and up) S/N OD469859 and up.

11071 Key Alpha 1 1991 up
11071 Key Alpha 1 1991 up

11071 Replacement key OEM 28-43037
$4.09 

Tech support drawings illustrations

65 repair video on YouTube
Help to identify Mercruiser and Alpha 1 or Generation 2
and identify your Mercury and
Yamaha lower units.

Chrysler - Force outboard components.

Customers who ordered P/N 12080 also purchased:

317201 Large Sealant-Johnson

317201 Large Sealant-Johnson

P/N 508235 Johnson / Evinrude gasket sealant (includes brush inside lid). $24.15

51140 Mercruiser Alpha One exhaust manifold elbow 807988Q03

51140 Exhaust manifold elbow

P/N 51140 Mercruiser Alpha One exhaust manifold elbow/riser $143.95

Includes:
P/N 30240 Mercruiser elbow/riser gasket
P/N 21892 plug
P/N 22379 plug
P/N 22381 x 4 mounting bolts

12120 Alpha 1 outdrive water pump kit Mercruiser 1984-1990

12120

P/N 12120 Lower gear case water pump impeller kit rebuild kit, with housing. Compatible with R MR Alpha 1984-1990 models. Replaces Sierra 18-3320. $35.99

21450 Shift cable 865436A03

21450

P/N 21450 Lower unit shift cable. Compatible with all models 1972 and up. Note, this cable installs from the AFT end of the bell housing, some minor modifications may be required on older model housings. Replaces Mercury 865436A03 and Sierra kit 18-2603. $89.99

Kit includes:
P/N 21710 Shift Cable 41951A1
P/N 21750 Set Screw 10-45590
P/N 21790 Bellow Clip 54-38863
P/N 21791 Hose Clamp 54-85504320
P/N 39622 Gasket Kit 27-94996A2
P/N 89080 74639 Bellow
P/N 21085 Slide w/ Screw 850752-1
P/N 21140 Shift Arm 45518A2
P/N 21430 Guide 43433
P/N 21432 Anchor 43436
P/N 21433 Set Screw 10-20518
P/N 21462 Wrapping 38473
P/N 21463 Insert 14705

21960 Gen 2 kit 1991 up 30-803099T1

21960

P/N 21960 Sterndrive Generation 2 bellows kit with sealed gimbal bearing,oil seal and bellows gasket. Drive shaft bellows includes internal aluminum sleeve. For 1991 and up models only. Replaces Mercury part number 30-803099T1 $169.99

21950 Mercruiser 4-cylinder V6 V8 350 30-803097T1

21950

P/N 21950 Sterndrive exhaust bellows kit Years 1973 thru 1990 with serial numbers 3469428 to 0D469800. OEM part number 30-803097T1 $145.95

Includes:

P/N 21906 Gimbal bearing
P/N 85910 oil seal
P/N 89080 shift cable bellow
P/N 89100 exhaust bellow
P/N 39622 bell housing gasket
P/N 47110/47120 water hoses
P/N 89050 drive shaft bellow