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Inboard Marine Engine & Drive Parts For Mercruiser, Volvo, OMC, PCM

Shop inboard and sterndrive marine parts for maintenance, troubleshooting, repair, and full engine rebuild projects. This category includes OEM parts and quality OEM specification aftermarket products from Pro Marine for Mercruiser, Volvo, OMC, Crusader, Pleasurecraft, Indmar, and Chrysler marine engine applications.

Browse marine engine parts by brand and engine system, including cooling systems, ignition and electrical components, fuel delivery parts, exhaust components, internal engine parts, sterndrive and lower drive components, gaskets, seals, steering components, service kits, oil change kits, and rebuild parts.

 

Shop Inboard Categories

 

Common Inboard and Sterndrive Parts Found in This Category

  • Water pumps, impellers, thermostats, manifolds, and cooling system parts
  • Fuel pumps, carburetor kits, injectors, filters, and fuel delivery components
  • Ignition coils, distributors, sensors, alternators, starters, and electrical parts
  • Pistons, bearings, crankshafts, gaskets, seals, and engine rebuild components
  • Bellows, gimbal bearings, shift cables, trim parts, and sterndrive components
  • Exhaust manifolds, risers, couplers, and marine exhaust parts
  • Oil change kits, filters, spark plugs, lubricants, and routine service items
 

Common Inboard and Sterndrive Problems and Where to Start

  • Overheating: inspect impellers, water pumps, thermostats, manifolds, and cooling passages.
  • Hard starting or rough idle: check ignition components, carburetor parts, fuel delivery systems, and sensors.
  • Water intrusion into the drive: inspect bellows, seals, gimbal bearings, and sterndrive housing components.
  • Loss of power or engine noise: inspect compression, bearings, gaskets, pistons, and internal engine components.
  • Drive vibration or shifting issues: inspect couplers, shift cables, u-joints, gears, and lower drive components.
 

Frequently Asked Questions

What is the difference between OEM and aftermarket marine parts?

OEM parts are produced by the original engine manufacturer. Aftermarket parts are replacement parts produced by other manufacturers to fit the same application. Pro Marine provides quality OEM specification aftermarket products for marine maintenance, repair, and rebuild applications.

How do I find the correct inboard or sterndrive parts?

Use your engine model number, serial number, drive model, and horsepower information to confirm fitment. Sterndrive applications may also require the drive serial number for accurate parts matching.

What brands are included in this category?

This category includes Mercruiser, Volvo, OMC, Crusader, Pleasurecraft, Indmar, and Chrysler marine engine applications.

What are common signs my sterndrive needs service?

Common warning signs include overheating, water in gear lube, vibration, difficult shifting, drive noise, poor acceleration, bellows leaks, and excessive corrosion.

Are aftermarket sterndrive and inboard parts reliable?

Yes. Quality aftermarket marine parts are commonly used by marine mechanics and rebuilders. Pro Marine offers OEM specification aftermarket products for many marine engine and sterndrive repair applications.

 

Tip: Before ordering sterndrive or inboard parts, verify the engine model, serial number, and drive model information whenever possible.

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Alpha I Gen II W/O Dipstick 1991-Up
Item#:
18-2382
Cross Reference#:
18312A3
828692A1
9-78120
Manufacturer Item:
828692A1
Manufacturer:
Sierra
Available:
In Stock
Your Price:
284.29
Each
GM 454/7.4L .020
Item#:
2-74RB-2
Cross Reference#:
49172
69888
85729
Manufacturer Item:
85729
Manufacturer:
Felpro
Available:
In Stock
Your Price:
16.25
Each
Mercruiser 2.5L 3.0L 4cyl w/Power Steering 37"Long 1979-2001
Item#:
15370P
Cross Reference#:
18-15370
509302
65607
65607Q
65607T
9-55005
Manufacturer Item:
65607T
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
28.83
Each
Chrysler Inboard w/61Amp
Item#:
40112
Cross Reference#:
18-5954
3527501
3527502
Manufacturer Item:
3527501
Manufacturer:
Arco
Available:
In Stock
Your Price:
311.35
Each
Mercruiser 4.3L 5.0L 350Mag 76.5"Long 1998 & Up
Item#:
15101P
Cross Reference#:
18-15101
862086
862086A1
8620861
8638764
865615Q04
865615004
Manufacturer Item:
865615Q04
Manufacturer:
Engineered Marine Parts
Available:
In Stock
Your Price:
99.99
Each
Volvo 4.3GXi,Si,5.0GXi,Si 5.7Gi, GXi
Item#:
3889124
Cross Reference#:
3817287
3889124
Manufacturer Item:
3889124
Manufacturer:
Volvo
Available:
Out of Stock
ETA:
08/21/2026
Your Price:
64.20
Each
Mercruiser V6 & V8 1" ID 1996-2001
Item#:
18-70940
Cross Reference#:
860144
9-44058
Manufacturer Item:
860144
Manufacturer:
Sierra
Available:
In Stock
Your Price:
60.79
Each
Alpha I
Item#:
32470
Cross Reference#:
10-32470
18-6245
18-6245
21740
21740
32470
47580
74728
Manufacturer Item:
32470
Manufacturer:
Sierra
Available:
In Stock
Your Price:
11.49
Each
Mercruiser 3.0L 4cyl 1982-2003
Item#:
18-70931
Cross Reference#:
3857391
47640
509282
8M0071007
9-44050
96879
Manufacturer Item:
96879
Manufacturer:
Sierra
Available:
In Stock
Your Price:
42.29
Each
Item#:
3852665
Cross Reference#:
3852665
769499
911748
912992
Manufacturer Item:
3852665
Manufacturer:
Volvo
Available:
In Stock
Your Price:
29.10
Each
Item#:
864625P
Cross Reference#:
849296T
864625T
Manufacturer Item:
864625T
Manufacturer:
Mercruiser
Available:
In Stock
Your Price:
33.69
Each
Item#:
864625T
Cross Reference#:
18-6457
849296T
864625T
Manufacturer Item:
864625T
Manufacturer:
Mercury Marine
Available:
Out of Stock
ETA:
08/12/2026
Your Price:
65.49
Each
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