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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
Mercruiser Engine Cooling, fuel, ignition, exhaust, and engine parts 
Mercruiser Drive Driveshaft housing, lower gearcase, transom, and trim parts 
Volvo Engine Volvo cooling, electrical, exhaust, and internal engine parts 
Volvo Drive Volvo drive housing, gearcase, transom, and trim components 
OMC Engine OMC fuel, cooling, electrical, exhaust, and engine parts 
OMC Drive OMC drive housing, lower gearcase, transom, and trim parts 
Crusader Engine Crusader cooling, fuel, ignition, exhaust, and engine parts 
Pleasurecraft Engine Pleasurecraft marine engine maintenance and repair parts 
Indmar Engine Indmar cooling, fuel, electrical, and engine components 
Chrysler Engine Chrysler marine engine maintenance and rebuild parts 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.
8M0210760
8M6000623
859596
881879A7
881879010
8818793
MES Trim Motor Reservoir
3-Wire Tilt & Trim Motor with Reservoir for Mercury and MerCruiser
This MES trim motor reservoir assembly is an aftermarket replacement for select Mercury, MerCruiser, Volvo Penta, and early BMW marine tilt and trim systems.
The assembly includes the 12-volt trim motor and reservoir for compatible 3-wire ring-terminal trim pump systems. The pump valve body is not included.
Compatible Applications
| Brand / Application | System Type | Years / Range | Application Notes |
|---|---|---|---|
| MerCruiser Stern Drives | Power Trim & Tilt | Most models through 1984 | For compatible 3-wire motor and reservoir trim pump systems |
| Mercury Outboards | Power Trim & Tilt | Select 1975-1992 applications | Commonly listed for 35-220HP applications using compatible 3-wire / 4-line trim systems |
| Volvo Penta Stern Drives | Power Trim & Tilt | Early compatible models | For compatible early 3-wire ring-terminal trim motor systems |
| BMW Marine Z-Drive | Power Trim & Tilt | Early compatible models | Used on compatible BMW marine stern drive trim systems |
Always verify your original trim motor OEM number, wire configuration, terminal style, pump design, and trim system diagram before ordering.
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| MES | T2975M |
| Replaces Mercury / MerCruiser | 64461A4 |
| Replaces Mercury / MerCruiser | 67914A2 |
| Replaces Mercury / MerCruiser | 76395A2 |
| Replaces Mercury / MerCruiser | 76395A5 |
| Replaces Mercury / MerCruiser | 8317 |
| Replaces Mallory | 9-18210 |
| Replaces Mercury / MerCruiser | 92975A22 |
| Replaces Mercury / MerCruiser | 92975A28 |
| Replaces Mercury / MerCruiser | 92975A32 |
| Replaces Mercury / MerCruiser | 92975A4 |
| Replaces Mercury / MerCruiser | 92975A6 |
| Replaces Mercury / MerCruiser | 97528A3 |
| Common Aftermarket Cross Reference | Sierra 18-6763 |
| Common Aftermarket Cross Reference | ARCO 6217 |
What This Trim Motor Reservoir is Used For
This trim motor reservoir assembly is used on compatible hydraulic power trim systems to drive the trim pump and hold trim system fluid.
The trim motor powers the hydraulic pump that raises and lowers the sterndrive or outboard during trim and tilt operation.
A failed or weak trim motor may cause slow trim movement, intermittent operation, clicking with no pump movement, or complete trim system failure.
Replacing the motor and reservoir assembly can help restore proper trim system operation when the original unit has failed and the pump valve body is still serviceable.
Key Features and Benefits
- MES aftermarket trim motor reservoir assembly
- 12-volt trim motor with reservoir
- 3-wire configuration with ring-terminal connections
- Designed for compatible Mercury, MerCruiser, Volvo Penta, and BMW marine trim systems
- Replaces multiple Mercury and MerCruiser OEM part numbers
- Common replacement for early-style trim pump systems
- Motor and reservoir only; pump valve body is not included
- Aftermarket alternative to OEM trim motor assemblies
Trim Motor Reservoir Details
- Brand: MES
- Part Type: Trim Motor Reservoir Assembly
- MES Part Number: T2975M
- Voltage: 12 Volt
- Connection Type: 3-wire ring-terminal connections
- Includes: Trim motor and reservoir
- Does Not Include: Pump valve body
- Application: Compatible hydraulic power trim and tilt systems
- Quantity Sold: Each
FAQ
What does MES T2975M replace?
MES T2975M replaces multiple Mercury and MerCruiser trim motor and reservoir numbers including 64461A4, 67914A2, 76395A2, 76395A5, 92975A22, 92975A28, 92975A32, 92975A4, 92975A6, and 97528A3.
Does this include the pump valve body?
No. This is the trim motor and reservoir assembly only. The pump valve body is not included.
Is this a 3-wire trim motor?
Yes. This replacement is for compatible 3-wire trim motor systems with ring-terminal connections.
What applications does this fit?
It fits select MerCruiser stern drives, Mercury outboards, Volvo Penta, and early BMW marine trim systems using the matching 3-wire motor and reservoir assembly.
Will this fit all Mercury or MerCruiser trim pumps?
No. Fitment depends on the original OEM part number, wire configuration, terminal style, reservoir design, and pump assembly.
Should I verify my original part number before ordering?
Yes. Always compare your original trim motor part number and trim pump layout before ordering replacement trim motor components.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Electrical trim components should be installed only after confirming correct fitment.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
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PT440
TRM0005
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