Mercury Mariner Inline Fuel Filter – Replacement for 35-853733A2, 35-853733T02, 35-853733T03, 35-898101T68 and 35-8M0088825
Mercury Mariner Inline Fuel Filter – Replacement for 35-853733A2, 35-853733T02, 35-853733T03, 35-898101T68 and 35-8M0088825 is backordered and will ship as soon as it is back in stock.
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Mercury Mariner Inline Fuel Filter – Replacement for 35-853733A2, 3...
Mercury Mariner Inline Fuel Filter – Replacement for 35-853733A2, 35-853733T02, 35-853733T03, 35-898101T68 and 35-8M0088825 is backordered and will ship as soon as it is back in stock.
Product Details
This replacement inline fuel filter is listed for selected Mercury and Mariner outboard fuel systems. It installs in the fuel line to help remove contaminants before fuel reaches the engine. Because fitment varies by model and serial-number range, compare your complete engine details and the original filter before ordering.
This is a single fuel filter replacement, not a maintenance kit or multi-piece bundle. The product is identified with the following Mercury reference numbers: 35-853733A2, 35-853733T02, 35-853733T03, 35-898101T68, and 35-8M0088825. Short-form reference numbers 853733T02, 853733T03, 898101T68, and 8M0088825 are also associated with the same reference family.
- Inline fuel-filter design for installation in the engine fuel line.
- Helps filter fuel-borne dirt and contamination.
- Supplied as one complete fuel filter.
- Confirm fuel-hose size, filter appearance, engine model, and serial number before installation.
Part Number Matrix
The following customer-facing manufacturer reference numbers are associated with this replacement filter.
| Brand | Reference Number |
|---|---|
| Mercury | 35-853733A2 |
| Mercury | 35-853733T02 |
| Mercury | 35-853733T03 |
| Mercury | 35-898101T68 |
| Mercury | 35-8M0088825 |
| Mercury | 853733T02 |
| Mercury | 853733T03 |
| Mercury | 898101T68 |
| Mercury | 8M0088825 |
Engine and Model Compatibility
Catalog references associate this filter family with the Mercury applications below. The catalog data includes model and serial conditions but does not consistently specify a stroke for every application. Do not assume two-stroke or four-stroke compatibility from horsepower alone.
| Brand | Model | Rated HP | Stroke | Serial condition | Catalog diagram |
|---|---|---|---|---|---|
| Mercury | 9.9, 2-cylinder, International | 9.9 | Not specified | 0N059858 and up | Air Silencer and Fuel Lines |
| Mercury | 15, 2-cylinder, International | 15 | Not specified | 0N055285 and up | Air Silencer and Fuel Lines |
| Mercury | 18, 2-cylinder, International | 18 | Not specified | 0N055285 and up | Air Silencer and Fuel Lines |
| Mercury | 25, 2-cylinder, International | 25 | 2-Stroke | 0N055505 and up | Fuel Pump |
| Mercury | 25 Jet, 2-cylinder, International | 25 | 2-Stroke | 0N088578 and up | Fuel Pump |
| Mercury | 25 EFI, 3-cylinder | 25 | 4-Stroke | 0R106999 and up | Fuel Pump |
| Mercury | 25 Jet EFI, 3-cylinder | 25 | 4-Stroke | 0R165086 and up | Fuel Pump |
| Mercury | 30, 2-cylinder, International | 30 | 2-Stroke | 0N055505 and up | Fuel Pump |
| Mercury | 30 EFI, 3-cylinder | 30 | 4-Stroke | 0R106999 and up | Fuel Pump |
| Mercury | 40 MXL SeaPro | 40 | Not specified | 0N037781 through 0N056164 | Fuel Line |
| Mercury | 40 Lightning | 40 | Not specified | 0N000001 through 0N056164 | Fuel Line |
| Mercury | 40 Lightning XR | 40 | Not specified | 0N000513 through 0N056164 | Fuel Line |
| Mercury | 40 Lightning XR, International | 40 | Not specified | 0N056165 and up | Fuel Line |
| Mercury | 50MH | 50 | Not specified | 0N056165 and up | Fuel Line |
Important: A model or horsepower match alone is not sufficient. Verify the complete serial number, engine designation, fuel-system diagram, and original filter before purchase.
Technical Specifications
- Product Type
- Inline fuel filter
- Product Configuration
- Single replacement filter
- Application
- Mercury and Mariner outboard fuel systems listed above
- Installation Position
- In-line on the fuel hose
- Fuel
- Use only with fuel approved by the engine manufacturer
What's in the Box
- 1 x Inline fuel filter
Hose clamps, fuel hose, mounting hardware, and other accessories are not specified as included.
Installation Notes
- Stop the engine, disconnect the ignition source as appropriate, and shut off or isolate the fuel supply.
- Allow the engine and fuel system to cool. Work in a well-ventilated area away from flames, sparks, and smoking materials.
- Place an approved container or absorbent material beneath the filter to catch fuel.
- Note the fuel-flow direction and the routing of the original filter before removal.
- Release the hose clamps and remove the old filter carefully. Avoid damaging the fuel hose.
- Install the replacement filter with the flow direction pointing toward the engine, unless the engine service information specifies otherwise.
- Secure the connections with suitable clamps and inspect the hose for cracking, hardening, or other damage.
- Restore the fuel supply, prime the system according to the engine instructions, and check every connection for leaks before operation.
Troubleshooting and FAQ
How do I confirm that this filter fits my engine?
Compare the complete engine model and serial number with the compatibility table, then compare the original filter's shape, connections, and flow direction. Horsepower alone is not enough to confirm fitment.
Why is the serial number important?
Mercury applications can change within the same horsepower rating. The listed catalog applications use specific serial ranges, so an apparently similar model may use a different fuel filter.
What are common signs of a restricted fuel filter?
Possible symptoms include hard starting, hesitation, loss of power, rough running, or stalling. These symptoms can also result from fuel-pump, hose, tank, carburetor, EFI, or ignition problems and should be diagnosed before replacing parts.
Which way should the filter be installed?
Follow the flow arrow on the filter and the engine service information. In a typical outboard fuel system, flow runs from the tank toward the engine.
Can this filter be cleaned and reused?
Fuel filters are normally treated as replaceable service components. Do not attempt to clean or reuse a contaminated or damaged filter unless the engine manufacturer specifically states that it is serviceable.
Is this an OEM Mercury part?
This listing is for a replacement fuel filter. It is not represented as a genuine Mercury-branded component. The reference numbers are provided for identification and compatibility comparison.
Safety and Important Information
- Fuel is flammable. Relieve hazards, prevent spills, and follow the engine manufacturer's safety instructions.
- Do not operate the engine if any fuel connection leaks.
- Inspect fuel hoses and clamps during installation and replace damaged components as needed.
- Verify the complete model and serial-number condition before ordering.
- Professional installation is recommended when you are not familiar with marine fuel systems.
About Sea Sierra
- Marine Replacement Parts — Replacement components for maintenance and repair applications.
- Reference-Based Selection — Use manufacturer reference numbers together with engine model and serial information.
- Fitment First — Compare the original component and the applicable engine catalog information before installation.
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