Mercruiser outdrive parts drawing *Videos *SEI sterndrive

T.C. Electronics/Marine Home Page

Mercruiser water pump kit *Outdrive *Ford-Chevy engine

GLM Marine aftermarket Mercruiser replacement water pump
Lower unit and engine circulation pump years 1965 and up

  • Complete aftermarket GLM Marine and Sierra lower unit water pump kits for MC 1 / R / MR and Mercruiser Alpha One stern drives. In-line 4, 6 cylinder and V8 model Mercruiser water pumps for years 1965 and up.
  • Located in Canada please contact boat parts.ca for water pump kit
  • Mercruiser engine water pumps for Volvo penta and Chevy in-line 4 and 6 cylinders. 4.3 liter V6, 5.0 and 5.7 liter small block. 7.5 liter large block Volvo or Chevy 460 V8 and Ford 5.0 liter V8 engines.
  • Remember to use a small amount of grease on the impeller and o rings when installing a new impeller in the water pump kit.
  • Use a Mercruiser gasket sealant compound on the Volvo or Chevy GM engine.
  • Need help *Water pump repair video

Please click on water pumps photo for outdrive service set

12110 years 1970-1990 OEM 46-57234A3

12110 Years 1970-1990 OEM 46-57234A3

P/N 12110
Water pumps for outdrive years 1970 thru 1983 Mercruiser models,
Mercruiser 1 / R Serial numbers 2763442 - 6854392 $39.95

Aftermarket pump assembly parts includes:

  • P/N 89840 / 47-89984T4 Impeller
  • P/N 12510 / 32435 Wear plate
  • P/N 12310 / 46-57234T1 Pump housing base
  • P/N 31010 / 27-85608-1 Gasket
  • P/N 11070 / 28-56654 Key
  • P/N 12410 / 46-96148T1 Water pump housing
  • P/N 12820 / 23-29804T Guide water tube
  • P/N 12810 / 48752 Cup

18-3317 Pump
18-3317 Sierra water pump
Sierra water pump housing 18-3317 Mercruiser 1 / R years 1970 - 1983 $52.00

Mercruiser MC-1 / R years 1970 - 1983
serial numbers 2763442 - 6854392
Aftermarket Mercruiser parts included:
47-89984T4 Impeller
28-56654 Key
46-96148T1 Water pump housing
46-57234T1 base
23-29804T Guide water tube
48752 Cup
Wear plate
27-85608-1 Gasket

12130 GLM aftermarket water pump
12130 GLM aftermarket Mercruiser water pump
GLM Marine water pump kit P/N 12130 assembly with flush screw. $69.95

Compatible with the Mercruiser 1 model years 1965 - 1969 serial numbers 2495186 - 2763441
Pump assembly includes:
P/N 89840 / 47-89984T4 impeller
P/N 11070 / 28-56654 Key
P/N 12410 / 46-96148T1 pump housing
P/N 12333 / 46-48748T1 base
P/N 12820 / 23-29804T Guide tube
P/N 12810 / 48752 cup
P/N 12510 / 32435 Wear plate
P/N 31010 / 27-85608-1 Gasket

18-3321 Sierra aftermarket Mercruiser pump
18-3321 1965-1969

Sierra water pump 18-3321 Mercruiser-1 years 1965 - 1969 $88.00

Aftermarket parts included:
47-89984T4 Impeller
28-56654 Key
46-96148T1 Pump housing
46-48748T1 Base
23-29804T Guide tube
48752 Cup
32435 Wear plate
27-85608-1 Gasket

12120 Water pump kit MR Alpha 1984-1990
12120 MR 1984-1990
GLM Kit P/N 12120 For Mercruiser Alpha One Gen 1 models $35.95 Years 1984 - 1990
Mercruiser serial numbers 6854393 - OD469858

GLM aftermarket water pumps parts includes:
P/N 89840 OEM 47-89984T4 Water pump impeller
P/N 11070 / 28-56654 Key
P/N 12410 / 46-96148T1 Pump housing
P/N 12322 / 46-44292A3 Base
P/N 12820 / 23-29804T Guide tube
P/N 12810 / 48752 Cup
P/N 12510 / 32435 Wear plate
P/N 31010 / 27-85608-1 Gasket

18-3320 Alpha 1 water pump kit 1984-1990

18-3320 Alpha 1 water pump kit 1984-1990

Sierra water pump 18-3320 Mercruiser MR / Alpha 1 water pump 1984 - 1990 $43.00

Aftermarket Mercruiser parts includes:
47-89984T4 impeller
28-56654 Key
46-96148T1 pump housing
46-44292A3 water pump base
23-29804T Guide tube
48752 Cup
32435 Wear plate
27-85608-1 Gasket

88010 Upper Lower Mercruiser Parts
88010 Upper Lower Mercruiser Parts
P/N 88010 GLM Marine aftermarket lower unit water pump and upper - lower gearcase seal kits $99.00
Compatible with models 1 and R (1970 - 1983)
Mercruiser serial numbers 2663442 - 6225576

Aftermarket Mercruiser parts includes:
P/N 87500 / 26-32511A1 Upper housing seal set
P/N 87510 / 26-33144A2 Lower seal set
P/N 89840 / 47-89984T4 Impeller
P/N 11070 / 28-56654 Key
P/N 12410 / 46-96148T1 Housing
P/N 12322 / 46-44292A3 base
P/N 12820 / 23-29804T Guide tube
P/N 12810 / 48752 Cup
P/N 12510 / 32435 Wear plate
P/N 31010 / 27-85608-1 Gasket

88020 Water pump Seal kit 1984-1990
88020 1984-1990
P/N 88020 Water pump housing, impeller and outdrive seal kit set $99.00
Mercruiser MR / Alpha 1 Gen 1 (1984 - 1990)
Mercruiser serial numbers 6854393 - OD469858

GLM aftermarket Mercruiser pump kit included:
P/N 89840 Mercruiser OEM number 47-89984T4 Water pump impeller
P/N 11070 / 28-56654 Key
P/N 12410 / 46-96148T1 pump housing
P/N 12322 / 46-44292A3 pump Base
P/N 12820 / 23-29804T Guide tube
P/N 12810 / 48752 pump Cup
P/N 12510 / 32435 Wear plate
P/N 31010 / 27-85608-1 Gasket

Parts included in seal kit P/N 87510
OEM 26-33144A2 are as follows:

P/N 12830 Seal 25-39970
P/N 81160 O-ring 25-30613
P/N 81390 O-ring 25-90011
P/N 81180 O-ring 25-25439
P/N 31020 Gasket 25-858524
P/N 31050 Gasket 27-42631-1
P/N 31010 Gasket 27-85608-1
P/N 85040 Oil seal 26-16977
P/N 85070 Oil seal 26-89238
P/N 85700 Oil seal 26-12224
P/N 85581 Oil seal 26-816464
P/N 85140 Seal 26-45577-1
P/N 21330 Slinger 25-30271
P/N 21010 bushing assembly 23-30617A2

11070
11070 Key
P/N 11070 Mercruiser -1, R, MR and Alpha One Gen 1 impeller key OEM 28-56654 $9.95

28-43037 Key 11071
11071
P/N 11071 Mercruiser Alpha one gen 2 key 28-43037 $4.95

89840 Impeller outdrive 47-89984-2

89840 Impeller

P/N 89840 Water pump impeller (all models up to 1990) Mercruiser OEM number 47-89984T4 $13.95

12410 Aftermarket Mercruiser water pump housing
12410 Housing 46-96148T1
P/N 12410 Upper housing (all models up to 1990) 46-96148T1 $29.95

12310 GLM aftermarket Mercruiser pump base
12310 Base 46-57234A1
P/N 12312 Water pump base (1970-1983 only, Mercruiser serial numbers 2763442-6854392 OEM number 46-57234T1 $39.15

12810 Cup 48752

12810 Cup 48752

P/N 12810 Impeller pump cup 48752 $5.95

12820 Guide Tube 23-29804T

12820 Guide Tube

P/N 12820 Guide tube (plastic) 23-29804T $6.95

12510 Wear plate 32435-1

12510 Wear plate 32435-1

P/N 12510 Wear or impeller plate years 1965 to 1990 OEM number 32435-1 $4.95

21330 Alpha 1 slinger

21330 slinger

P/N 21330 Rubber slinger (up to 1990) Mercruiser OEM number 25-30271 $4.15

Mercruiser water pump kit for Alpha One gen 2

12290 Impeller gasket kit Mercruiser Alpha one

12290 service kit

GLM Marine aftermarket pump kit part number Impeller and gaskets $31.95
Mercruiser-1/R/MR/Alpha one years 1965 thru 1990
Serial numbers 2495186 to OD469858

Aftermarket pump kit included:
  1. Impeller P/N 89840 / 89984T4
  2. Wear plate P/N 12510 / 32435
    Slinger P/N 21330 / 25-30271
  3. Seal P/N 85140 / 26-45577-1
  4. Guide tube P/N 12820 / 23-2904T
  5. Grommet P/N 12830 / 26-38970
  6. Gaskets P/N 31170 / 12-20260 2 units
  7. Gaskets P/N 31030 / 27-32438
  8. Gaskets P/N 31050 / 27-42631-1
  9. Gaskets P/N 31010 / 27-85608-1
  10. Gaskets P/N 31020 / 27-85824
  11. Gaskets P/N 31040 / 27-856704
  12. O ring P/N 82250 / 25-30224
  13. O ring P/N 81160 / 25-30613
  14. O ring P/N 82260 / 25-33145
  15. O ring P/N 81390 / 25-90011
  16. O ring P/N 82270 / 25-38099

39530 gasket kit
39530

P/N 39530 GLM Marine aftermarket pump gasket kit $19.95
Compatible with Mercruiser -1 / R / MR and Alpha one years 1965 - 1990
Serial numbers 2495186 - OD469858
Aftermarket Mercruiser parts included:
  1. Slinger P/N 21330 / 25-30271
  2. Seal P/N 85140 / 26-45577-1
  3. Pump gaskets P/N 31170 / 12-20260 (2 units)
  4. Pump gaskets P/N 31030 / 27-32438
  5. Pump gaskets P/N 31050 / 27-42631-1
  6. Pump gaskets P/N 31010 / 27-85608-1
  7. Pump gaskets P/N 31020 / 27-85824
  8. Gaskets P/N 31040 / 27-856704
  9. O ring P/N 82250 / 25-30224
  10. O ring P/N 81160 / 25-30613
  11. O ring P/N 82260 / 25-33145
  12. O ring P/N 81390 / 25-90011
  13. O ring P/N 82270 / 25-38099
  14. O ring P/N 82240 / 25-26722

12043 Water pump impeller kit Alpha 1 Gen 2

12043 Water pump
impeller kit Alpha 1 Gen 2

P/N 12043 GLM Marine aftermarket pump kit and impeller $37.95
Alpha 1 Generation 2 (1991 and up)
Mercruiser serial numbers OD469859 and up

GLM aftermarket Mercruiser Alpha one gen 2 pump kit included:
  1. P/N 12500 / 817276-1 Wear plate
  2. P/N 30090 / 27-43033-1 Gasket
  3. P/N 89630 / 47-43026T2 Water pump impeller
  4. P/N 82110 / 25-21836 O Ring
  5. P/N 85590 / 26-816575A2 Seal
  6. P/N 31240 / 27-817277 Gasket

12080 Impeller kit Alpha 1 Generation 2 outdrive

12080 Lower unit water pump impeller kit Generation 2 outdrive

P/N 12080 GLM Marine aftermarket Mercruiser Alpha one gen 2 water pump impeller $57.95
Includes carrier assembly P/N 12341 / 807929A1
Alpha One Generation 2 (1991 and up)
Mercruiser serial numbers OD469859 and up

Aftermarket parts included:
  1. P/N 12500 / 817276-1 Impeller plate
  2. P/N 30090 / 27-43033-1 Gasket
  3. P/N 89630 / 47-43026T2 impeller
  4. P/N 31240 / 27-817277 Gasket
  5. P/N 12341 / 807929A1 Carrier assembly

Note for Water pump:

Mercruiser, MC-1 lower unit and the Alpha One lower unit can be used with the same upper gearcase.
That said the replacement are not the same for both sterndrive units.

Example: let say you have this Mercruiser upper gearcase showing and your boat is years 1970 to 1983 our GLM Marine aftermarket water pump kit is number 12110 how ever if the lower unit was replaced with the newer Alpha one that came out in years 1984 to 1990, Then the GLM Marine water pump kit is number 12120.

The water pump base, gasket and o-ring is not the same. You can the year of the lower units for years 1970 thru 1983 by the Mercruiser vertical drive shaft end that has the 1/4 pin in it about 5/8 of inch long and Alpha one drive shaft has no pin on the end.

Over the years your Mercruiser outdrive lower unit may have been replaced after all unit is about 40 plus year old. Need more help just send us a picture to omcparts@rogers.com or call Brian Tanask 416-752-7278 on the order desk for the tech service number.

Mercruiser Technical Support videos

Mercruiser tech support is available from Wayne at our Canadian location
Search on Google for YouTube videos by Wayne Coll
Select the repair video needed there is no charge to view


Sample of Mercruiser repair videos :

  • Mercruiser outdrive bellow and shift cable repair 592,000 views
  • Water pump housing removal and repair video 320,200 views
  • How can I remove my Mercruiser Alpha one gen 2 lower unit 76,300 views
  • Water pump kit install video

GLM Marine aftermarket engine circulation water pumps

15100 Chevy 4-6 inline water pump

15100 Chevy 4-6 inline water pump

P/N 1500 Circulation water pumps for Chevy / GM 4 / 6 cylinder inline marine engine $87.95
Includes mounting water pump gaskets
  • P/N 31350 / 827-33956
  • 153 CID
  • 2.5 liter
  • 181 CID
  • 3.0 liter
  • 5.0 CID
  • 4.0 liter

15201 Chevy GM V6-V8 small block water pump OEM-850399-1

15201 Chevy GM V6-V8 small block water pump OEM 850399-1

P/N 15201 GLM Marine engine circulation pump for Volvo/GM/Chevy V6 / V8 small block engine $96.95 Includes 2 mounting pump gaskets P/N 31380 / 27-34897
Fits metal and composite timing cover chain
  • 229 CID 3.8 Liter engine
  • 262 CID 4.3 Liter engine
  • 305 CID 5.0 Liter engine
  • 350 CID 5.7 Liter engine

15301 engine water pump
15301 Chevy V8 big block

P/N 15301 GLM Marine engine water pump circulation pump for Volvo or Chevy V8 big block $156.95 Includes water pump mounting gasket P/N 31770 / 27-49110
Fits both tin and aluminum timing cover chain
  • 409 CID 6.6 Liter
  • 427 CID 6.9 Liter
  • 454 CID 7.4 Liter
  • 502 CID 8.2 Liter

15400 engine water pump

15400 engine water pump

P/N 15400 GLM Marine engine circulation pump for Ford V8 small block $121.00
Includes water pump mounting gasket P/N 31900 OEM number 27-56880
  • 302 CID 5.0 Liter
  • 351 CID 5.8 Liter

Quicksilver back view
Quicksilver back view
P/N 71683 Genuine quicksilver circulation pump part number OEM 071683 made by ford casting number DJ3E-8605-AA $162.95

Water Circulating Pump Fits Ford V-8 engines Mercury Quicksilver OEM 883885
  • 302 CID 5.0 Liter Ford engines
  • 351 CID 5.8 Liter Ford engines
  • 18-3584 Sierra Marine,
    9-42607 Mallory Marine
    P/N 15400 GLM Marine products ltd.

 
Sierra P/N 18-3575 GM engine inline Bi-directional 4 / 6 cylinder 65142A1 $109.00

 
Sierra circulation pump number 18-3573 GM 8.1L engine big block 883925 $255.00
For engines with composite timing cover

GLM Marine Sea water pump assembly belt driven engines

12115 V belt brass sea water pump
12115 V belt brass sea water pump

P/N 12115
GLM Marine pump assembly fits all V belt engines and has all brass sea water pump with stainless steel fittings.
Use with Alpha 1 gen 2 and Bravo boat engines

12114 Sea water pump assembly belt driven
12114 Sea water pump assembly belt driven

P/N 12114
GLM Marine pump assembly fits all serpentine engines
Use with Gen 2 and Bravo boat engines

Customers also looked at:

21960 Gen 2 kit 1991

21960

P/N 21960 Kit with exhaust, u-joint and shift cable bellows with gimbal bearing and oil seal. Includes outdrive installation gasket. The gimbal bearing is the new sealed type which is maintenance free. Replaces Mercury part number 30-803099T1 $169.99

21960 Generation 2 exhaust u-joint

Complete repair kit

P/N 21960K *most popular Same kit as above, also includes bellows adhesive glue and hinge pin removal/installation$204.99

21450 Shift cable 865436A03

Basic kit without bearing/seal, glue and tool

P/N 21450 Complete outdrive lower unit shift cable kit. Includes cable, shift bellow, outdrive installation gasket kit and other parts. Replaces Mercury 865436A03 and Sierra 18-2603. $89.99

21950 Alpha 1 adhesive hinge pin tool 30-803097T1

21950

P/N 21950K *most popular* Same kit as above, also includes bellows adhesive glue and hinge pin removal/installation tool$179.99

21950 Bellows kit 30-803097T1

21950 Bellows kit 30-803097T1

P/N 21950 Transom 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 39622 bell housing gasket
P/N 47110/47120 water hoses
P/N 89050 drive shaft bellow
P/N 89080 shift cable bellow
P/N 89100 exhaust bellow
P/N 85910 oil seal

87500

87500 Upper gearcase seal kit

P/N 87500
Upper gearcase seal kit Upper gearcase seal kit. Replaces OEM number 26-32511A1.
For Mercruiser 1 / R / MR / Alpha one years 1964 thru 1990
Mercruiser serial numbers 1684188 - OD469858 $24.95
Includes:
  • P/N 85020/85060/85030 Oil seals
  • P/N 80420 O-ring
  • P/N 85150 Grommet
  • P/N 80190 O-ring
  • P/N 81180 O-ring
  • P/N 82380 O-ring
  • P/N 31150 Gasket

39622

Bell housing gasket set

P/N 39622 Bell housing gasket set
  • 1983 and up, serial number 6225577 - up
  • For R / MR / Alpha 1 and Gen 2 $9.95

P/N 39590 GLM Marine aftermarket bell housing gasket set
  • 1967-1982, Mercruiser serial number 2062141-6225576
  • For Mercruiser-1 and R $9.95

Contact us if you need help and tech support

Technical support is available from Wayne our tech service rep in person Toronto, Canada location
Search on Goggle for YouTube videos by Wayne Coll or T.C. Electronics/Marine
there is about 72 boat repair video in total as of 2019 there is no charge to view

Example of Mercruiser sterndrive water pumps listed on YouTube
  • Mercruiser outdrive shift cable and bellows repairs 593,228 views
  • Water pump removal and repair video 320,214 views
  • How do I remove my Alpha One gen 2 lower unit 76,350 views
  • 65 repair video on YouTube for Mercury Marine outboard or outdrive parts
  • Help to identify Mercruiser and Alpha One or Generation 2 outdrive
    and identify your Mercury and Yamaha outboard parts