Boat Parts Worldwide
1-800-998-9508   Intl. +1-206-780-5670
+ =
Free Shipping for Online Orders $99 or More See Conditions

Mercruiser Sterndrive Cooling System

mercury mercruiser engine parts finder
Post a question or comment about Mercruiser Sterndrive Cooling System.
Products: 1 - 50 of 212
Page:  1 | 2 | 3 | 4 | 5   Next >
Jabsco, Engine Cooling, 1-1/4" Water Pump, Bracket Mount, 43210 Series

Jabsco, Engine Cooling, 1-1/4" Water Pump, Bracket Mount, 43210 Series

Mfr. Jabsco Marine | Mfr No. 43210-0001

Jabsco, Engine Cooling, 1-1/4" Water Pump, Bracket Mount, 43210 Series. Flow rate: Nominal 20 US gallons/min (27 Litres/min) at 1500 rpm...
$472.68
On Sale


View Details
Perko, Flush Pro Marine Engine Flush & Winterizing Kit

Perko, Flush Pro Marine Engine Flush & Winterizing Kit

Mfr. Perko | Mfr No. 0457DP7

The Flush Pro Valve Kit lets you flush and winterize your marine engine without climbing in and out of your boat. With the Flush Pro Kit you use a garden hose from outside your boat...
$155.29


View Details
Bi Directional Water Circulation Pump, 18-3583

Bi Directional Water Circulation Pump, 18-3583

Mfr. Sierra | Mfr No. 18-3583

Bi Directional Water Circulation Pump, 18-3583. Replaces 60658, 850399, 17437. Fits: GM V-6 & V-8 engines with stamped steel timing covers. Ideal for both standard and counter-rotating engines...
$95.57


View Details
Water Circulating Pump, Bi-Directional - 18-3584

Water Circulating Pump, Bi-Directional - 18-3584

Mfr. Sierra | Mfr No. 18-3584

Water Circulating Pump, Bi-Directional - 18-3584. For use on Crusader Inboard cooling systems. Replacement for Pleasurecraft Inboard #RA057004, Mercruiser and Sterndrive/Cobra...
$96.92
On Sale


View Details
Water Circulating Pump, Bi-Directional - 18-3577

Water Circulating Pump, Bi-Directional - 18-3577

Mfr. Sierra | Mfr No. 18-3577

Water Circulating Pump, Bi-Directional - 18-3577, Big block GM engines with stamped steel timing covers, Replacement for Pleasurecraft Inboard #RA057019, Mercruiser Inboard/Outboard...
$118.22
On Sale


View Details
Water Circulating Pump, Bi-Directional - Mercruiser

Water Circulating Pump, Bi-Directional - Mercruiser

Mfr. Sierra | Mfr No. 18-3599

Water Circulating Pump, Bi-Directional - Mercruiser. For use on Mercruiser Inboard/Outboard cooling systems. For late model GM V-6, V-8 engines using a composite timing cover...
$78.36
On Sale


View Details
Water Circulating Pump, Big Block GM Engines, 18-3574

Water Circulating Pump, Big Block GM Engines, 18-3574

Mfr. Sierra | Mfr No. 18-3574

Water Circulating Pump, Big Block GM Engines, 18-3574.
$148.57


View Details
Mercruiser Water Pump Kit

Mercruiser Water Pump Kit

Mfr. Sierra | Mfr No. 18-3147

Mercruiser Water Pump Kit Replaces: 817275T4. For: Gen II-lower s/n D469859 and up...
$98.97


View Details
Thermostat Housing Kit - Mercruiser 861493A3

Thermostat Housing Kit - Mercruiser 861493A3

Mfr. Sierra | Mfr No. 18-1910

Thermostat Housing Kit - Mercruiser 861493A3. Fits: 3.0L GM 1999-Up, S/N 0L340999-Lower
$112.51


View Details
Thermostat Housing Kit - Mercruiser 87290A4

Thermostat Housing Kit - Mercruiser 87290A4

Mfr. Sierra | Mfr No. 18-1989

Replaces: 87290A4, 861006A1
$178.13


View Details
Thermostat Housing, Mercruiser, 18-1994

Thermostat Housing, Mercruiser, 18-1994

Mfr. Sierra | Mfr No. 18-1994

Thermostat Housing, Mercruiser, 18-1994, AP# 5004. Replaces 87290A4...
$141.03


View Details
Thermostat Kit Mercruiser - 18-3652

Thermostat Kit Mercruiser - 18-3652

Mfr. Sierra | Mfr No. 18-3652

Thermostat Kit Mercruiser - 18-3652. For use on Mercruiser Inboard/Outboard cooling systems...
$18.54


View Details
Thermostat Kit - Mercruiser 807252T2, 27-47510, 27-53045-1

Thermostat Kit - Mercruiser 807252T2, 27-47510, 27-53045-1

Mfr. Sierra

Replaces Thermostat 160 Degree F. 807252T2, Cover Gasket 27-47510 & 27-53045-1
Sale Price From $15.89

View Details
Thermostat Kit Mercruiser - 18-3568

Thermostat Kit Mercruiser - 18-3568

Mfr. Sierra | Mfr No. 18-3568

Thermostat Kit Mercruiser - 18-3568. For use on Mercruiser 454, 340HP closed system thermostat kit. Replaces Mercruiser Part # 99155T1...
$15.97


View Details
Thermostat Kit Mercruiser - 18-3650

Thermostat Kit Mercruiser - 18-3650

Mfr. Sierra

Thermostat Kit Mercruiser - 18-3650. For use on Mercruiser Inboard/Outboard cooling systems...
Sale Price From $15.02

View Details
Thermostat Kit Mercruiser - 18-3651

Thermostat Kit Mercruiser - 18-3651

Mfr. Sierra

Thermostat Kit Mercruiser - 18-3651. For use on Mercruiser Inboard/Outboard cooling systems...
Sale Price From $10.25

View Details
Thermostat Kit Mercruiser - 18-3667

Thermostat Kit Mercruiser - 18-3667

Mfr. Sierra

Thermostat Kit Mercruiser - 18-3667. For use on Mercruiser Inboard/Outboard cooling systems...
Sale Price From $13.29

View Details
Thermostat Kit Mercruiser - 18-3668

Thermostat Kit Mercruiser - 18-3668

Mfr. Sierra

Thermostat Kit Mercruiser - 18-3668. For use on Mercruiser Inboard/Outboard cooling systems...
Sale Price From $12.91

View Details
Thermostat Kit, 160 Degree Mercruiser - 18-3648

Thermostat Kit, 160 Degree Mercruiser - 18-3648

Mfr. Sierra | Mfr No. 18-3648

Thermostat Kit, 160 Degree Mercruiser - 18-3648. For use on Mercruiser Inboard/Outboard cooling systems...
$17.63


View Details
Thermostat Kit, Mercruiser, 18-3646

Thermostat Kit, Mercruiser, 18-3646

Mfr. Sierra

Thermostat Kit, Mercruiser, 18-3646, replaces Mercruiser # 807252Q3...
Sale Price From $15.48

View Details
Thermostat Service Kit

Thermostat Service Kit

Mfr. Sierra

Service Kit for 18-1989 Thermostat Housing
Sale Price From $6.99

View Details
Thermostat, 140 degree, Mercruiser, 18-3550

Thermostat, 140 degree, Mercruiser, 18-3550

Mfr. Sierra

Thermostat, 140 degree, Mercruiser, 18-3550, replacement for Mercruiser Inboard/Outboard #59078...
Sale Price From $13.95

View Details
Thermostat, 160 Degree Mercruiser - 18-3649

Thermostat, 160 Degree Mercruiser - 18-3649

Mfr. Sierra

Replacement Thermostat, 160 Degree Mercruiser - 18-3649...
Sale Price From $17.46

View Details
Thermostat, 160 Degree, Crusader, Mercruiser - 18-3552

Thermostat, 160 Degree, Crusader, Mercruiser - 18-3552

Mfr. Sierra

Thermostat, 160 Degree, Crusader, Mercruiser - 18-3552, 165 - 229 ci, CH190/CH220, 305 ci and CH270, 350 ci and 454 ci...
Sale Price From $10.00

View Details
Thermostat, 160 degree, Mercruiser, 18-3555

Thermostat, 160 degree, Mercruiser, 18-3555

Mfr. Sierra

Thermostat, 160 degree, Mercruiser, 18-3555. Replacement for Mercruiser Inboard/Outboard #99155A1...
Sale Price From $11.36

View Details
Thermostat, Chevrolet, GM, Ford V8's, 142°, 18-3551

Thermostat, Chevrolet, GM, Ford V8's, 142°, 18-3551

Mfr. Sierra

Thermostat, Chrysler, GM, Ford V8's, 142°, 18-3551 for Raw Water cooled engines, Chrysler/Force/US. Marine, Crusader GM models, Pleasurecraft, Ford and Mercruiser Inboard/Outboards...
Sale Price From $9.59

View Details
Thermostat, Mercury / Mariner, 120 F Replaces Mercury #14586

Thermostat, Mercury / Mariner, 120° F Replaces Mercury #14586

Mfr. Sierra

Thermostat, Mercury / Mariner, 120° F. For various Mercury and Mariner outboards. Replaces Mercury #14586...
Sale Price From $13.97

View Details
Thermostat, Volvo, Mercury / Mariner, Johnson / Evinrude, Chrysler / Force / US. Marine, 143, 18-3557

Thermostat, Volvo, Mercury / Mariner, Johnson / Evinrude, Chrysler / Force / US. Marine, 143°, 18-3557

Mfr. Sierra | Mfr No. 18-3557

Thermostat, Mercury / Mariner, Johnson / Evinrude, Chrysler / Force / US. Marine, 143°, 18-3557...
$20.71


View Details
V-8 Thermostat Cover Gasket - Mercruiser - 18-2844

V-8 Thermostat Cover Gasket - Mercruiser - 18-2844

Mfr. Sierra | Mfr No. 18-2844

V-8 Thermostat Cover Gasket - Mercruiser - 18-2844. Replacement for Mercruiser Inboard/Outboard #27-48818-1.
$1.40


View Details
Barr, MerCruiser, Upper Thermostat Housing Assembly

Barr, MerCruiser, Upper Thermostat Housing Assembly

Mfr. Barr Marine by EDM

Barr, MerCruiser, Upper Thermostat Housing Assembly. Models 225 (GM), 260, 228, 898/198...
$33.10 - $37.24

View Details
Mercruiser Lower Thermostat Housing, MC-29-87290

Mercruiser Lower Thermostat Housing, MC-29-87290

Mfr. Barr Marine by EDM | Mfr No. MC-29-87290

Mercruiser Lower Thermostat Housing, MC-29-87290, Replaces Mercruiser 87290A4...
$172.54


View Details
Mercruiser Thermostat Housing Cover

Mercruiser Thermostat Housing Cover

Mfr. Barr Marine by EDM | Mfr No. MC-29-47442

Mercruiser Thermostat Housing Cover with off set bolt pattern...
$33.00


View Details
Thermostat Housing, Small Block Chevrolet V6 & V8, CHV-29-80

Thermostat Housing, Small Block Chevrolet V6 & V8, CHV-29-80

Mfr. Barr Marine by EDM | Mfr No. CHV-29-80

Thermostat Housing, Small Block Chevrolet V6 & V8, CHV-29-80 for dual pump cooling system...
$122.57


View Details
Mercruiser Thermostat Housing Sleeve, 23-806922

Mercruiser Thermostat Housing Sleeve, 23-806922

Mfr. Quicksilver by Mercury | Mfr No. 806922

Mercruiser Thermostat Housing Sleeve, 23-806922...
$15.94


View Details
Thermostat Housing Replaces: 47441A1

Thermostat Housing Replaces: 47441A1

Mfr. Sierra | Mfr No. 18-1977-1

Fits 225, GM 260, 228, 898/198, 185R, 898R, 228R, 2GR
$37.48


View Details
Mercruiser Thermostat Housing Replaces: 860256A4

Mercruiser Thermostat Housing Replaces: 860256A4

Mfr. Sierra | Mfr No. 18-3530-1

For: GM V6 and V8 (305 & 350 ci)
$324.54


View Details
Thermostat Housing - Mercruiser 90736A18

Thermostat Housing - Mercruiser 90736A18

Mfr. Sierra | Mfr No. 18-3678

Thermostat Housing - Mercruiser 90736A18Lifetime warranty on Sierra Thermostat Housings and other Sierra Engine Parts...
Not Currently Available

View Details
Thermostat Housing - Mercruiser 861188A1

Thermostat Housing - Mercruiser 861188A1

Mfr. Sierra | Mfr No. 18-3531

Thermostat Housing - Mercruiser 861188A1. Lifetime warranty on Sierra Thermostat Housings and other Sierra Engine Parts...
$279.23


View Details
Mercruiser - Direct Replacement Heat Exchangers & Oil Coolers

Mercruiser - Direct Replacement Heat Exchangers & Oil Coolers

Mfr. Seakamp Engineering

Mercruiser direct replacement heat exchanger allows use of hot water cabin heater in cooler climates...
$118.82 - $1,238.18

View Details
Water Pump Upper Housing Repair Kit - 817275Q 4

Water Pump Upper Housing Repair Kit - 817275Q 4

Mfr. Quicksilver by Mercury | Mfr No. 817275Q4

Water Pump Upper Housing Repair Kit - 817275Q 4. Fits Alpha One - Gen II...
$130.54


View Details
Water Pump Upper Housing Repair Kit, Mercury / Mariner, Mercruiser, 46-96148A 8

Water Pump Upper Housing Repair Kit, Mercury / Mariner, Mercruiser, 46-96148A 8

Mfr. Quicksilver by Mercury | Mfr No. 96148A8

Water Pump Upper Housing Repair Kit, Mercury / Mariner, Mercruiser, 46-96148A 8. Fits Mercury/Mariner 65 hp (4 cylinder) Through V-6 outboards with short-vane impellers and fits MerCruiser...
$45.68


View Details
Complete Pump Housing Kit Mercruiser - 18-3320

Complete Pump Housing Kit Mercruiser - 18-3320

Mfr. Sierra

Complete Pump Housing Kit Mercruiser - 18-3320. For Mercruiser Inboard/Outboard #1 Units thru S/N D494568.
Sale Price From $30.07

View Details
Complete Pump Housing Kit Mercruiser - 18-3321

Complete Pump Housing Kit Mercruiser - 18-3321

Mfr. Sierra

Complete Pump Housing Kit Mercruiser - 18-3321. For Mercruiser Inboard/Outboard cooling system...
Sale Price From $55.62

View Details
Complete Water Pump Housing Kit For Mercruiser, 18-3317

Complete Water Pump Housing Kit For Mercruiser, 18-3317

Mfr. Sierra

Complete Water Pump Housing Kit For Mercruiser, 18-3317. Complete kit contents listed...
Sale Price From $32.47

View Details
Mercruiser Water Pump Kit, Fits All Bravo Engines Replaces: 47-59362Q08

Mercruiser Water Pump Kit, Fits All Bravo Engines Replaces: 47-59362Q08

Mfr. Sierra

Mercruiser Water Pump Kit, Fits All Bravo Engines Replaces: 47-59362Q08. Mercruiser Water Pump Kit- Fits All Bravo (2 Piece Body)...
Sale Price From $45.02

View Details
Upper Pump Housing Unit w/o Base-Mercury / Mariner, 18-3517

Upper Pump Housing Unit w/o Base-Mercury / Mariner, 18-3517

Mfr. Sierra | Mfr No. 18-3517

Mercury/Mariner Outboard #46-60367A1, 46-96148A5. Merc Sterndrive: 32437A1,32437A3, 37433A1, 42579A4, 44292A4, 48747A3,57234A3, 58618A4,60367A1...
$25.09


View Details
Water Pump Kit, Mercruiser - 18-3150

Water Pump Kit, Mercruiser - 18-3150

Mfr. Sierra | Mfr No. 18-3150

Water Pump Kit, Mercruiser - 18-3150. Replacement for Mercruiser Inboard/Outboard #46-807151A14. For Bravo cooling systems...
$61.08


View Details
Water Pump Kit, Mercruiser - 18-3309

Water Pump Kit, Mercruiser - 18-3309

Mfr. Sierra

Water Pump Kit, Mercruiser - 18-3309. Fits MerCruiser engines with a plastic 2-piece body seawater pump...
Sale Price From $22.53

View Details
Bi-Directional Water Pump,GM Big Block, WP 1900

Bi-Directional Water Pump,GM Big Block, WP 1900

Mfr. API Marine | Mfr No. WP1900

API New Bi-Directional Water Pump,GM Big Block, WP 1900...
$143.48


View Details
Water Pump, GM 8.1L Engines, WP 2000

Water Pump, GM 8.1L Engines, WP 2000

Mfr. API Marine | Mfr No. WP2000

API New Water Pump, GM 8.1L Engines, WP 2000...
$167.61


View Details
Products: 1 - 50 of 212
Page:  1 | 2 | 3 | 4 | 5   Next >

Ask. Answer. Discuss.
Post a question or comment about Mercruiser Sterndrive Cooling System to our online boating community.
Question
For a Merc 120 1967 model----Which way is "up" for the thermostat

For a Merc 120 1967 model—-Which way is "up" for the thermostat. It appears it could go either way. Anyway it is overheating with a 140 degree stst.

Submitted by: Phil
Answer

The end with the spring goes in towards the engine. Have you changed the water pump impeller?


 
Name / Nickname:

Email:
(optional)


Type of Submission:

Subject:

Message:
Tips on Reviewing:
  • How you use the product
  • What you like about this product
  • How can this product be improved
  • When asking about Engine Parts, please include: Year, Make, Model and Serial Number of engine or part

Please do not include: personal information, profanity or copyrighted works. Conditions of Use