Fuel Filter for MerCruiser 2.5L, 3.0L & 3.7L Engines (Replaces 8M0046752, 35-8M0046752)
Fuel Filter for MerCruiser 2.5L, 3.0L & 3.7L Engines (Replaces 8M0046752, 35-8M0046752) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Fuel Filter for MerCruiser 2.5L, 3.0L & 3.7L Engines (Replaces ...
Fuel Filter for MerCruiser 2.5L, 3.0L & 3.7L Engines (Replaces 8M0046752, 35-8M0046752) is backordered and will ship as soon as it is back in stock.
Product Details
This fuel filter is intended for selected MerCruiser sterndrive applications using a carbureted engine with the compatible Carter mechanical fuel pump. The filter is installed in the fuel-pump canister and helps remove contaminants from gasoline before the fuel reaches the engine.
Company catalog data lists this replacement for MerCruiser 2.5L, 3.0L, and 3.7L engines. A marine replacement-parts catalog also associates the same filter reference with 2.5L and 3.0L applications, MCM 224 CID engines, and GM 262 CID engines equipped with a Carter fuel pump.
- Product type: Replacement fuel filter, sold as a single filter component.
- Installation location: Inside the compatible engine-mounted mechanical fuel pump canister.
- Fuel: For gasoline fuel systems.
- Fitment requirement: The engine must use the compatible Carter mechanical fuel-pump configuration.
Part Number References
Use the following manufacturer and aftermarket references when comparing your original filter. Number references do not replace checking the fuel-pump design and engine application.
| Brand or source | Reference number |
|---|---|
| MerCruiser | 8M0046752 |
| MerCruiser | 35-8M0046752 |
| MerCruiser | 35-8M004675 |
| MerCruiser | 8M0046751 |
| MerCruiser | 803897K1 |
| MerCruiser | 11004T1 |
| MerCruiser | 11004T2 |
| MerCruiser | 803897Q1 |
| MerCruiser | 35-803897Q1 |
| Sierra | 18-7784 |
| Volvo Penta | 3855104 |
Engine Compatibility
Compatibility is dependent on the fuel-pump configuration and applicable serial-number range. Confirm that your engine uses the fuel filter mounted inside the Carter mechanical fuel pump before ordering.
| Brand | Engine application | Stroke | Serial or application condition | Reference | Notes |
|---|---|---|---|---|---|
| MerCruiser | 2.5L | 4-Stroke | Selected applications; catalog reference indicates serial number 6229718 and later | 35-8M0046752 / 35-803897Q1 | Use only with the compatible Carter mechanical fuel pump |
| MerCruiser | 3.0L | 4-Stroke | Selected applications; catalog reference indicates serial number 6229718 and later | 35-8M0046752 / 35-803897Q1 | Use only with the compatible Carter mechanical fuel pump |
| MerCruiser | 3.7L | 4-Stroke | Company-listed fitment | 8M0046752 | Verify the filter canister and pump configuration |
| MerCruiser | MCM 224 CID | 4-Stroke | Catalog reference indicates serial number 6218037 and later | 35-8M0046752 | Application requires the compatible Carter fuel pump |
| MerCruiser | GM 262 CID | 4-Stroke | Catalog reference indicates serial number A331455 and later | 35-8M0046752 | Only configurations with the compatible Carter fuel pump |
Technical Specifications
- Product type
- Fuel filter
- Application
- Selected MerCruiser sterndrive gasoline engines
- Installation
- Mounted inside the compatible mechanical fuel-pump canister
- Fuel type
- Gasoline
- Required configuration
- Carter mechanical fuel pump with the matching internal filter arrangement
- Quantity
- One fuel filter component
- Aftermarket reference
- Sierra 18-7784
What's in the Box
- 1 x Fuel filter
This listing is for the filter component. Additional seals, springs, or other fuel-pump service parts are not confirmed as included unless specifically shown in the product package.
Installation Notes
- Allow the engine to cool, disconnect the battery, and work in a well-ventilated area away from ignition sources.
- Place an appropriate container below the fuel pump to catch fuel. Follow the engine manufacturer's service instructions for fuel-system pressure and spill control.
- Remove the lower fuel-pump canister or retaining hardware as specified for your pump design.
- Remove the old filter and inspect the canister, spring, sealing surfaces, and fuel-pump components for dirt or damage.
- Install the replacement filter in the same orientation as the original component. Reuse or replace sealing parts only as specified by the service manual and as appropriate for your pump.
- Reassemble the fuel-pump canister without cross-threading or over-tightening the hardware.
- Reconnect the battery, prime the fuel system according to the service manual, and inspect carefully for fuel leaks before operating the engine.
Troubleshooting & FAQ
How do I confirm that this filter fits my engine?
Confirm the engine displacement, applicable serial-number range, and fuel-pump design. This filter is listed for selected MerCruiser 2.5L, 3.0L, and 3.7L applications and for certain MCM 224 CID and GM 262 CID configurations with a Carter mechanical fuel pump. Compare the original filter and pump canister before ordering.
Does this filter fit every MerCruiser 2.5L, 3.0L, or 3.7L engine?
No. Fitment depends on the exact fuel-pump configuration and, where applicable, the engine serial number. Engines using a different pump or an electric fuel-pump system may require a different filter.
Is this a complete fuel-pump rebuild kit?
No. This product is listed as a single replacement fuel-filter component. It should not be treated as a complete fuel-pump rebuild kit or as including unlisted springs, gaskets, or seals.
What are common signs of a restricted fuel filter?
Possible symptoms include hard starting, hesitation, loss of power, stalling, or poor operation under load. These symptoms can have other causes, so inspect the complete fuel system and follow the engine service manual for diagnosis.
Is this an OEM part?
This is an aftermarket replacement fuel filter. The listed manufacturer and aftermarket numbers are provided as reference numbers for comparison and application checking.
Safety & Important Information
- Fuel is flammable. Work only with the engine stopped and cooled, in a well-ventilated area, away from sparks, flames, and other ignition sources.
- Verify the original filter, fuel-pump canister, engine serial number, and application details before purchase and installation.
- Do not install this filter in an electric fuel-pump system or any application with a different filter design.
- Professional installation is recommended when fuel-system service procedures are unfamiliar.
About Sea Sierra
- Marine Replacement Parts — Practical replacement components for selected marine engine and sterndrive applications.
- Application-Focused Support — Compare engine, pump, serial-number, and part-number details before ordering.
- Aftermarket Value — Replacement options for routine marine maintenance and repair.
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