Mercruiser water pump kit | Alpha one lower unit

All GLM Marine aftermarket water pump kits
Kits include: seal, gaskets, o-rings and impeller
When installing, make sure to use gasket sealing compound on o-rings and gaskets (shown below)
1967 - 1990 Mercruiser models (up to Alpha One gen 1)
GLM Marine recirculating engine water pumps

12110 Water pump kit

P/N 12110
lower unit water pump kit
1970 - 1983, serial numbers 2763442-6854392

Parts included:

12312 46-57234T1 Base
12410 46-96148T1 Housing
12510 32435-1 Wear Plate
12820 23-29804T Guide Tube
21330 25-30271 Slinger
31010 27-85608-1 Gasket
31020 27-858524 Gasket
31040 27-856704 Gasket
31170 (2) 12-19183-3 Gasket
81160 25-30613 O-ring
85140 26-45577-1 Seal
89840 47-89984T4 Impeller

$44.95

$54.95

88010 Service

P/N 88010 Water pump kit complete rebuild, includes upper and lower unit seals and gaskets. (1970 - 1983, serial numbers 2763442-6854392)

$140.95

$185.95

12120 Alpha 1

P/N 12120 Impeller kit for Mercruiser outdrives with housing (1984 - 1990 serial numbers 6854393-OD469858)

Parts included:

12321 46-57234A1 Base
12410 46-96148T1 Housing
12510 32435-1 Wear Plate
12820 23-29804T Guide Tube
21330 25-30271 Slinger
31010 27-85608-1 Gasket
31020 27-858524 Gasket
31040 27-856704 Gasket
31170 (2) 12-19183-3 Gasket
81160 25-30613 O-ring
85140 26-45577-1 Seal
89840 47-89984T4 Impeller

$37.95

$47.95

88020

P/N 88020 Outdrive service, includes impeller and upper housing and lower gearcase seal kit. (1984 - 1990 serial numbers 6854393-OD469858)

$140.95

$185.95

12130 Mercruiser impeller MC-1

P/N 12130 Parts (1966 - 1969, serial numbers 2495186-2763441)

$70.95

$93.95

12280 Complete kit 65-225 hp OEM 46-96148A8

P/N 12280 Pump housing impeller service kit, with the water pump housing OEM 46-961-48T8 and 46-78400A2. (1966 - 1990, serial numbers 2495186-OD469858)

Parts included:
12410 water pump housing
12510 32435-1 Wear Plate
12820 23-29804T Guide Tube
12830 26-38970 Grommet
21330 25-30271 Slinger
31010, 31020, 31030, 31040 Gaskets
31170 (2) 12-19183-3 Gasket
81390, 81160, 82260, 82250 O-ring
85140 26-45577-1 Seal
89840 47-89984T4 Impeller

P/N 12280 4 and 6 cylinder
OEM 46-78400A2

650 65 HP 4 Cylinder 1963-1969 serial number 1542745-2803561

650 65 HP 4 Cylinder 1970-1972, serial number 2803562 to 2874263, 2997439 to 3293183

700 E/EL-2 70 HP 6 cylinder 1961, serial number 1503959-1566239

75 HP 4 cylinder 1984-1988 USA 6432901 - Up

75 HP 4 cylinder 1984-1988 CAN 7208573 - Up

800 80 HP 4 cylinder 1969-1972, serial number 2559001-3493912

80 HP 4 cylinder 1978-1983, USA 4831999-6432900

80 HP 4 cylinder 1978-1983, CAN 7110998-7208572

850 SX 85 HP 4 Cylinder 1973-1977

90 HP 4 Cylinder 1978-1986 USA 4845301 and up

90 HP 6 Cylinder 1978-1986 CAN 7111698 and up

1000 SS (E) 100 HP 6 Cylinder 1962-1965, 1968-1969

Various 105 to V200 hp. models please call with year and serial number

$29.95

$38.95

12290

P/N 12290 Impeller service, without housing. (1966 - 1990, serial numbers 2495186-OD469858)

Parts included:
12510 32435-1 Wear Plate
12820 23-29804T Guide Tube
12830 26-38970 Grommet
21330 25-30271 Slinger
31010, 31020, 31030, 31040 Gaskets
31170 (2) 12-19183-3 Gasket
81390, 81160, 82260, 82250 O-ring
85140 26-45577-1 Seal
89840 47-89984T4 Impeller

$25.95

$32.95

39530

P/N 39530 Mercruiser water pump housing gasket and seal, without housing. Years 1966 to 1990, serial numbers 2495186-OD469858

$21.95

$25.95

12043

P/N 12043
Impeller kit 1991 and up Alpha One Generation 2 with serial numbers OD469859 and up

Parts included:
11071 Key
12500 Wear plate
12824 Coupling Assembly

30009 Gasket
31170 Gasket
31240 Gasket
85140 Seal
85590 Seal
89630 Impeller

$37.95

$49.95

12080 Gen 2

P/N 12080 Alpha One Generation 2 water pump impeller kit for years 1991 and up Generation 2, serial numbers OD469859 and up

Parts included:
12341 Carrier assembly
12500 Wear plate
30009 Gasket
31240 Gasket
89630 Impeller

$57.95

$75.95

12040

P/N 12040 Alpha One Generation 2 water pump impeller kit for years 1991 and up Generation 2, serial numbers OD469859 and up

Parts included:
12500 Wear plate
30090 Gasket
31240 Gasket
89630 Impeller

12824 coupling assembly
82110 o ring
85590 seal

$57.95

$75.95

12414 Water pump kit

P/N 12414 Alpha One Generation 2 water pump kit

Parts included:
11071 Key
12341 Pump base
12413 Pump housing
12500 Wear plate
30090 Gasket
31170 Gasket (2)
31240 Gasket
82115 O-ring (2)
82150 O-ring
82210 O-ring
85590 Face seal
89630 Impeller

OEM 817275Q4

$109.95

$144.95

89840 Impeller	P/N 89840 Impeller OEM 47-89984T4 for MC-1 / R / MR / Alpha One years 1966 to 1990 with serial numbers 2495186 - OD469858
11070 Key 28-56654	P/N 12070 Impeller key for MC-1 / R / MR / Alpha One years 1966 to 1990 with serial numbers 2495186 - OD469858
12820 Tube guide 23-29804T	P/N 12820 Tube guide 23-29804T
12830 Seal 26-38970	P/N 12830 Seal 26-38970
12410 Pump housing 46-96148T1	P/N 12410 Pump housing 46-96148T1
12310 Pump base 46-57234A1	P/N 12310 Pump base 46-57234A1
12510 Wear plate 32435-1	P/N 12510 Wear plate 32435-1
81390 O ring	P/N 81390 O ring (5 units)
82260 O ring 25-33145

89630	P/N 89630 Impeller, 1991 - present Alpha One Generation 2, serial numbers OD469859 and up) 47-43026T2	$19.95	$23.95
11071 Key	P/N 11071 Key 28-43037 for Alpha One generation 2 outdrives with serial numbers OD469859 and up
12500 Face plate	P/N 12500 Wear plate 817276-1
12825 Guide tube	P/N 12825 Alpha generation 2 guide tube 23-816583
12824 Coupling assembly	P/N 12824 Mercruiser generation 2 coupling assembly 816597A1
85590 Face seal	P/N 85590 Face seal 26-816575A2
30090 Gasket	P/N 30090 Gasket 27-43033-1
31240 Gasket	P/N 31240 Gasket 27-817277-1
12413 Alpha 1 Gen 2 pump housing	P/N 12413 Alpha 1 Gen 2 Pump housing

GLM Marine recirculating Mercruiser engine water pumps

Stainless Steel Backing Plate
Stainless banded ceramic seal seat
Bi-Directional and Balanced
Stainless steel seal cup and spring
Machined Brass Impeller
Epoxy Painted Pump Housing

15100 Chevy 4-6 inline water pump	P/N 15100 Chevrolet inline Mercruiser 4 cylinder water pump OEM 884727, 3854017 153 CID - 2.5 Liter 181 CID and 3.0 Liter
15201 Circulating engine pump OEM 850399-1	P/N 15201 Inline 6 Cylinder engines small block engine water pumps OEM: 884727, 3854017 229 CID - 3.8 Liter 262 CID - 4.3 Liter 250 CID - 4.0 Liter 305 CID - 5.0 Liter 350 CID - 5.7 Liter
15400 Ford Engine	P/N 15400 Chevrolet V8 big block engines New style water pump OEM: 850454 409 CID 6.6 Liter 427 CID 6.9 Liter 454 CID 7.4 Liter 502 CID - 8.2 Liter
508235 OMC Johnson sealing compound	P/N 508235 Gasket sealing compound. This sealant is used on the o-rings and gaskets when re-sealing the outdrive

	P/N 39750 OEM 27-56108A1 302 and 351 CID engines 215 Inboard 233, 255 HP 888 with 188 HP
39760 Mercruiser 224 CD 4 Cylinder engines	P/N 39760 OEM 27-68714A7 Mercruiser 224 CD 4-Cylinder engines 165, 170, 180, 190, 470, 488 & 485 HP
	P/N 31380 OEM 27-34897 For item listed above P/N 15201, V6 305/350 Mercruiser Chevy engine
	P/N 32690 OEM 27-803192A2 For part number 15301 454-502 Chevy
	P/N 31770 OEM 27-49110 Use for P/N 15301 454/502 Chevy engine
	P/N 31900 OEM 27-56880 Ford 302/351
	P/N 30231 OEM 27-803192A1 For above part P/N 15201 V6 305/350 Chevy
	P/N 32480 OEM 27-88046 MCM 470

12097 Sea water pump assembly	P/N 12097 Sea water pump assembly OEM 46-807151A9b V6/V8 Engines with serpentine belt Body: Cast Impellers with neoprene shaft Stainless steel bearing and steel ball bearing housing: cast brass
	P/N 12093 Sea water pump assembly OEM 46-807151A12 and 46-72774A32 V6 / V8 Engines with V-belt Body: Cast brass Impellers: Neoprene Shaft Stainless steel Ports 1-1/4" stainless steel Bearing: Steel ball Bearing Housing: Cast brass
	P/N 12115 OEM: Not available Mercruiser V6/V8 engines with v-belt Body with: Cast Brass Impellers: Neoprene Shaft: Stainless Steel Ports: 1-1/4" Stainless steel bearing: Steel ball Bearing housing: cast brass
	P/N 22734 OEM: N/A For engines with serpentine belt Fits GLM's 1 Piece brass water pump
	P/N 22732 OEM N/A For use with Mercruiser and Alpha one engines with V-belt. Fits both 1-piece "brass" and the 2 piece plastic water pump

Install instructions for V4, V6 and V8 engines

Complete water pump kit

Slide water tube grommet into water pump housing, then install guide tube with grommet onto water pump housing.
Install gasket compound on small 0-ring into water pump housing and install impeller cup.
Glue seal into groove on water pump housing, set aside.
Clean gasket surface on gearcase. Install gasket and impeller plate onto gearcase.
Install key and 0-ring onto driveshaft. Slide impeller down driveshaft with 0-ring groove facing down, until it seats.
Lightly lubricate impeller housing with soapy water. Do not install impeller dry use a wheel bearing grease.
Slide impeller housing over impeller.
While turning driveshaft in a clockwise direction push down on impeller housing.
Tighten bolts, grease driveshaft splines.