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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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Mercruiser 4.3L 5.0L 5.7L 1 " ID 1987-Up
Item#:
18-70938
Cross Reference#:
8066351
9-44057
Manufacturer Item:
8066351
Manufacturer:
Sierra
Available:
In Stock
Your Price:
57.09
Each
Mercruiser 4.3L 5.0L 5.7L 1 1/4" ID 1987-1996
Item#:
18-70935
Cross Reference#:
806856
9-44054
Manufacturer Item:
806856
Manufacturer:
Sierra
Available:
In Stock
Your Price:
41.49
Each
Mercruiser 120/140 3.0L 1" ID 1975-1995
Item#:
18-70930
Cross Reference#:
9-44065
Manufacturer Item:
52481
Manufacturer:
Sierra
Available:
In Stock
Your Price:
40.09
Each
Mercruiser V6 & V8 1 1/4" ID 1981-1995
Item#:
18-70925
Manufacturer:
Sierra
Available:
In Stock
Your Price:
38.89
Each
MC I R/MR/Alpha I w/Ridge 1975-1990
Item#:
64932P
Cross Reference#:
0769871
0773046
0775540
60932A1
60932A4
Manufacturer Item:
60932A4
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
55.13
Each
Mercruiser V6 V8 w/Center Rise & 4" Y-Pipe Qty 2 1982-1996
Item#:
65166P
Cross Reference#:
14348
14348A1
14348A2
807166A3
Manufacturer Item:
807166A3
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
76.93
Pair
Mercruiser V6 V8 w/4" Y-Pipe 1992-2001
Item#:
65167P
Cross Reference#:
807166A1
Manufacturer Item:
807166A1
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
52.00
Each
Mercruiser 4.3L 5.7L 496 w/Serpentine 2000-Up
Item#:
862351P
Cross Reference#:
8M0150724
862351
862351T
Manufacturer Item:
862351
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
102.99
Each
Mercruiser 6.2L MPI
Item#:
865615Q10
Cross Reference#:
86387610
865615Q10
865615010
Manufacturer Item:
865615Q10
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
122.99
Each
Mercruiser 4.3L 5.0L 5.7L w/Drain 1 3/4" ID 123/4" Tall
Item#:
861590A05
Cross Reference#:
806825
861590A05
861590A1
861590A2
87108
Manufacturer Item:
861590A05
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
65.99
Each
Mercruiser7.4L 8.2L 454 502Mag
Item#:
807201
Cross Reference#:
807201
Manufacturer Item:
807201
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
58.49
Each
Alpha Gen II w/Sleeve 1991-Up
Item#:
64431P
Cross Reference#:
0775491
816431A1
Manufacturer Item:
816431A1
Manufacturer:
Pro Marine
Available:
Out of Stock
ETA:
07/15/2026
Your Price:
57.21
Each
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