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Mercury EFI Oil Pump 150HP-250HP & 240 SportJet 8M0185615
| Quantity | Price |
| 1 | 556.99 |
OEM Mercury EFI Oil Pump
Mercury 2.5L / 3.0L EFI Oil Pump Assembly
This OEM Mercury oil pump assembly fits select Mercury and Mariner 150HP-250HP EFI outboards along with compatible 240 EFI SportJet applications.
Mercury part number 8M0185615 supersedes several earlier EFI oil pump assemblies and is used on multiple Mercury 2.5L and 3.0L EFI powerhead platforms.
Compatible Applications
| Horsepower / Model | Engine Family | Engine Type | Application Notes |
|---|---|---|---|
| 150 EFI | Mercury / Mariner 2.5L | EFI 2-Stroke | Select serial-number applications |
| 175 EFI | Mercury / Mariner 2.5L | EFI 2-Stroke | Select EFI powerhead applications |
| 200 EFI | Mercury / Mariner 2.5L | EFI 2-Stroke | Select high-performance EFI models |
| 200 EFI | Mercury / Mariner 3.0L | EFI 2-Stroke | Select 3.0L EFI applications |
| 225 EFI | Mercury / Mariner 3.0L | EFI 2-Stroke | Select offshore and EFI applications |
| 250 EFI | Mercury / Mariner 3.0L | EFI 2-Stroke | Select 3.0L EFI applications |
| 225X EFI Pro Max | Mercury Racing 3.0L | High Performance EFI | Select Pro Max applications |
| SeaPro / Marathon | Mercury 3.0L | Commercial EFI | Select commercial-duty applications |
| 240 EFI / 240 EFI M2 | Mercury SportJet | EFI Jet Drive | Select SportJet powerhead applications |
Always verify your engine serial number before ordering internal engine lubrication components.
OEM Part Numbers & Supersessions
| Type | Part Number |
|---|---|
| Current Mercury OEM Number | 8M0185615 |
| Mercury Supersession | 8M0128081 |
| Mercury Supersession | 8M0101630 |
| Mercury Supersession | 879892T |
| Mercury Supersession | 879892T03 |
| Mercury Supersession | 879892T04 |
| Mercury Supersession | 879892T05 |
What This Oil Pump is Used For
This Mercury EFI oil pump circulates engine oil throughout the powerhead to lubricate crankshaft bearings, rods, pistons, internal rotating assemblies, and other critical engine components.
Proper oil pressure and oil flow are essential for protecting Mercury EFI 2-stroke engines from premature wear and engine damage.
Oil pump wear, contamination, internal scoring, or oil pressure problems can contribute to serious powerhead damage if not repaired promptly.
Oil pumps are commonly replaced during complete engine rebuilds, oil-pressure diagnosis, or major EFI powerhead repair work.
Key Features and Benefits
- OEM Mercury EFI oil pump assembly
- Fits select Mercury and Mariner 2.5L and 3.0L EFI outboards
- Compatible with 240 EFI SportJet applications
- Replaces multiple earlier Mercury oil pump assemblies
- Supports proper engine oil pressure and lubrication
- Critical internal engine lubrication component
- OEM Mercury fit and compatibility
- Common replacement during powerhead rebuild service
Oil Pump Details
- Brand: Mercury Marine
- Part Number: 8M0185615
- OEM Supersessions: 8M0101630, 8M0128081, 879892T, 879892T03, 879892T04, 879892T05
- Applications: Mercury / Mariner EFI 2-Stroke Outboards
- Compatible Engines: 2.5L & 3.0L EFI Platforms
- Compatible Models: EFI, Pro Max, SportJet, SeaPro, Marathon
- System: Engine Lubrication System
- Use: Engine oil circulation and oil pressure supply
FAQ
What engines does this oil pump fit?
This oil pump fits select Mercury and Mariner 150HP-250HP EFI 2-stroke outboards and 240 EFI SportJet models using the listed OEM numbers.
What OEM numbers does this replace?
This pump replaces Mercury part numbers 8M0101630, 8M0128081, 879892T, 879892T03, 879892T04, and 879892T05.
What does an oil pump do?
The oil pump circulates engine oil throughout the engine to lubricate and protect internal moving components.
What are symptoms of a failing oil pump?
Low oil pressure, internal engine noise, warning alarms, or poor lubrication can indicate oil pump problems.
Should engine serial number be verified before ordering?
Yes. Mercury used multiple oil pump variations depending on engine family and production range.
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.
- Internal engine lubrication components should be installed only by qualified technicians.
- 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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