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Mercruiser Inboard Engine Parts

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Products: 1 - 50 of 1,157
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Direct Replacement Mercruiser V8 Center Riser Exhaust Manifold, MC-1-87114

Direct Replacement Mercruiser V8 Center Riser Exhaust Manifold, MC-1-87114

Mfr. Barr Marine by EDM | Mfr No. MC-1-87114

Direct Replacement Mercruiser V8 Center Riser Exhaust Manifold, MC-1-87114. Port or Starboard. Replaces Mercruiser # 87114A8 and 87114A19...
$221.53


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Prestolite 4 Cylinder, Ignition Conversion Kit, 1546

Prestolite 4 Cylinder, Ignition Conversion Kit, 1546

Mfr. Pertronix | Mfr No. 1546

Prestolite 4 Cylinder, Ignition Conversion Kit, 1546. Electronic ignition conversion kit to replace standard point-type ignition. Fits Prestolite 4 Cylinder 6 Volt Distributor #IBM 7026...
$133.11


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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


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Thermostat Housing Kit - Mercruiser 87290A4

Thermostat Housing Kit - Mercruiser 87290A4

Mfr. Sierra | Mfr No. 18-1989

Replaces: 87290A4, 861006A1
$178.13


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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...
$154.68


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Thermostat Kit Mercruiser - 18-3651

Thermostat Kit Mercruiser - 18-3651

Mfr. Sierra | Mfr No. 18-3651

Thermostat Kit Mercruiser - 18-3651. For use on Mercruiser Inboard/Outboard cooling systems...
$14.65


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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


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Thermostat Kit Mercruiser - 18-3667

Thermostat Kit Mercruiser - 18-3667

Mfr. Sierra | Mfr No. 18-3667

Thermostat Kit Mercruiser - 18-3667. For use on Mercruiser Inboard/Outboard cooling systems...
$16.00


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Thermostat Kit Mercruiser - 18-3668

Thermostat Kit Mercruiser - 18-3668

Mfr. Sierra | Mfr No. 18-3668

Thermostat Kit Mercruiser - 18-3668. For use on Mercruiser Inboard/Outboard cooling systems...
$14.55


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

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

Mfr. Sierra | Mfr No. 18-3644

Replaces Thermostat 160 Degree F. 807252T2, Cover Gasket 27-47510 & 27-53045-1
$17.72


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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


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Thermostat Kit Mercruiser - 18-3650

Thermostat Kit Mercruiser - 18-3650

Mfr. Sierra | Mfr No. 18-3650

Thermostat Kit Mercruiser - 18-3650. For use on Mercruiser Inboard/Outboard cooling systems...
$16.18


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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


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Thermostat Kit, Mercruiser, 18-3646

Thermostat Kit, Mercruiser, 18-3646

Mfr. Sierra | Mfr No. 18-3646

Thermostat Kit, Mercruiser, 18-3646, replaces Mercruiser # 807252Q3...
$16.29


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Thermostat Service Kit

Thermostat Service Kit

Mfr. Sierra | Mfr No. 18-1989K

Service Kit for 18-1989 Thermostat Housing
$10.69


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Thermostat, 140 degree, Mercruiser, 18-3550

Thermostat, 140 degree, Mercruiser, 18-3550

Mfr. Sierra | Mfr No. 18-3550

Thermostat, 140 degree, Mercruiser, 18-3550, replacement for Mercruiser Inboard/Outboard #59078...
$17.81


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Thermostat, 160 Degree Mercruiser - 18-3649

Thermostat, 160 Degree Mercruiser - 18-3649

Mfr. Sierra | Mfr No. 18-3649

Replacement Thermostat, 160 Degree Mercruiser - 18-3649...
$20.62


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

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

Mfr. Sierra | Mfr No. 18-3552

Thermostat, 160 Degree, Crusader, Mercruiser - 18-3552, 165 - 229 ci, CH190/CH220, 305 ci and CH270, 350 ci and 454 ci...
$13.38


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Thermostat, 160 degree, Mercruiser, 18-3555

Thermostat, 160 degree, Mercruiser, 18-3555

Mfr. Sierra | Mfr No. 18-3555

Thermostat, 160 degree, Mercruiser, 18-3555. Replacement for Mercruiser Inboard/Outboard #99155A1...
$14.31


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

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

Mfr. Sierra | Mfr No. 18-3551

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...
$10.80


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

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

Mfr. Sierra | Mfr No. 18-3549

Thermostat, Mercury / Mariner, 120° F. For various Mercury and Mariner outboards. Replaces Mercury #14586...
$19.71


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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


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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


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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

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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


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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


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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


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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


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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...
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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


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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
$34.37


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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


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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...
$112.10 - $1,168.09

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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


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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


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Complete Pump Housing Kit Mercruiser - 18-3320

Complete Pump Housing Kit Mercruiser - 18-3320

Mfr. Sierra | Mfr No. 18-3320

Complete Pump Housing Kit Mercruiser - 18-3320. For Mercruiser Inboard/Outboard #1 Units thru S/N D494568.
$32.56


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Complete Pump Housing Kit Mercruiser - 18-3321

Complete Pump Housing Kit Mercruiser - 18-3321

Mfr. Sierra | Mfr No. 18-3321

Complete Pump Housing Kit Mercruiser - 18-3321. For Mercruiser Inboard/Outboard cooling system...
$60.50


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Complete Water Pump Housing Kit For Mercruiser, 18-3317

Complete Water Pump Housing Kit For Mercruiser, 18-3317

Mfr. Sierra | Mfr No. 18-3317

Complete Water Pump Housing Kit For Mercruiser, 18-3317. Complete kit contents listed...
$35.16


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

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

Mfr. Sierra | Mfr No. 18-3318

Mercruiser Water Pump Kit, Fits All Bravo Engines Replaces: 47-59362Q08. Mercruiser Water Pump Kit- Fits All Bravo (2 Piece Body)...
$58.15


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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


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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...
$93.62


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Water Pump Kit, Mercruiser - 18-3309

Water Pump Kit, Mercruiser - 18-3309

Mfr. Sierra | Mfr No. 18-3309

Water Pump Kit, Mercruiser - 18-3309. Fits MerCruiser engines with a plastic 2-piece body seawater pump...
$24.40


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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


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Alternator, Pleasurecraft RA097707C - 18-6453

Alternator, Pleasurecraft RA097707C - 18-6453

Mfr. Sierra | Mfr No. 18-6453

Alternator, Pleasurecraft RA097707C - 18-6453. Lifetime warranty on Sierra Alternators and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM and Sierra engine part...
Request Availability

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Alternator, Pleasurecraft RA097009 - 18-6452

Alternator, Pleasurecraft RA097009 - 18-6452

Mfr. Sierra | Mfr No. 18-6452

Alternator, Pleasurecraft RA097009 - 18-6452. Lifetime warranty on Sierra Alternators and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM and Sierra engine part...
$436.28


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Alternator, Pleasurecraft RA970007, Marine Power 000E-05157, 18-6450

Alternator, Pleasurecraft RA970007, Marine Power 000E-05157, 18-6450

Mfr. Sierra | Mfr No. 18-6450

Alternator, Pleasurecraft RA970007, Marine Power 000E-05157, 18-6450. Lifetime warranty on Sierra Alternators and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM...
$196.47


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Alternator, Replaces Mando, Motorola, Delco - 18-5945

Alternator, Replaces Mando, Motorola, Delco - 18-5945

Mfr. Sierra | Mfr No. 18-5945

Alternator, Replaces Mando, Motorola, Delco - 18-5945. Lifetime warranty on Sierra Alternators and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM and Sierra engine part...
$271.82


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Alternator, Universal 288182, 288759 - 18-6263

Alternator, Universal 288182, 288759 - 18-6263

Mfr. Sierra | Mfr No. 18-6263

Alternator, Universal 288182, 288759 - 18-6263. Lifetime warranty on Sierra Alternators and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM and Sierra engine parts...
$212.19


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Voltage Regulator - Mercruiser 32702

Voltage Regulator - Mercruiser 32702

Mfr. Sierra | Mfr No. 18-5730

Voltage Regulator - Mercruiser 32702. Lifetime warranty on Sierra Voltage Regulators and other Sierra Engine Parts...
$44.74


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Voltage Regulator - Mercruiser 42785

Voltage Regulator - Mercruiser 42785

Mfr. Sierra | Mfr No. 18-5740

Voltage Regulator - Mercruiser 42785. Lifetime warranty on Sierra Voltage Regulators and other Sierra Engine Parts...
$64.10


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Products: 1 - 50 of 1,157
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Go2marine carries a complete selection of marine engine parts for Mercruiser Inboard Engines and related cooling, electrical, exhaust, fuel, internal and drive systems. Contact our experienced Mercruiser Marine Engine mechanics to help you choose the correct part for your Mercruiser Marine Inboard...

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Post a question or comment about Mercruiser Inboard Engine Parts to our online boating community.
Question
Adjustable, slotted front mounting alternator bracket.

1985 4 cylinder inboard Chevy engine. 130 horsepower.

Need the above part. Do you carry it?

Submitted by: John
Answer

We suggest purchasing the Alternator Adjuster Bracket.


Question
Users manual

Bayliner 2850 Inboard Engine Mercruiser V8

Submitted by: Andre Nagel
Answer

Go2marine has the Repair Manual for your engine.


Question
raw water pump - 1986 - 350ci

I’ve a 1986 350/260 Mercruiser that needs a raw water circulating pump - which part # is correct? It mounts lower left when looking at the front of the motor.

Thanks! Ed

Submitted by: Ed in OC MD
Answer

If the serial number is A566791, this should be the water pump replacement you’re looking for!
Here is a link to the replacement Sea Water Pump:

Sea Water Pump


Question
correct spark plugs

I have a 2006 mie horizon 350 inboard engine serial # ow396961. My owners manual calls for ac platinum 41-983 spark plug. however the plug that was installed (orig equip) is ac 41-932. which is the correct spark plug? tks

Submitted by: dom
Answer

The AC number is 41-993. The NGK part number is ITR4A15. Hope this helps!


Question
starter

I have a 1979 Mercruiser and the starter clicks. Any idea on how I can check the starter or get the starter to turn over? It was working fine until last week.

Submitted by: Les
Answer

First make sure you have a fully charged battery and all cables are clean and tight. If you have good voltage to the starter, try tapping the starter case with a hammer. If that doesn’t free things up, you will need to remove the starter.


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