Choosing the right replacement fuel pump matters for starting, throttle response, and dependable running on the water. The best kits match your exact engine family, horsepower range, and mounting style.
Below, you’ll find a focused roundup of 10 options to help narrow the search for a compatible, durable outboard motor fuel pump kit.
Best 10 Outboard Motor Fuel Pump Kit Picks for 2026
Classic Johnson/Evinrude Replacement
- Fits many Johnson/Evinrude outboards
- Includes fuel pump plus gasket
- Aluminum alloy, leak-resistant build
Best For: Compatible Johnson/Evinrude owners needing a gasket-included replacement
OEM-Style Pump Kit
Sierra 18-7800 Marine Fuel Pump Kit
- Service kit for Johnson/Evinrude pumps
- Includes valves, O-rings, and gasket
- Meets or exceeds OEM quality
Best For: Owners doing a rebuild-style repair on compatible Johnson/Evinrude pumps
Complete Mercury Service Kit
8M0118177 Outboard Fuel Pump Kit
- Includes pump, filters, oil pump, and gaskets
- Fits Mercury 4-stroke 30-60 HP models
- Supports EFI and carb 3/4-cylinder engines
Best For: Mercury 4-stroke owners wanting a bundled fuel-system service kit
OEM-Style Johnson/Evinrude Fit
438556 Replacement Fuel Pump Kit
- Replaces several Johnson/Evinrude part numbers
- Includes carburetor, filter, and gasket
- Built with corrosion-resistant materials
Best For: Compatible Johnson/Evinrude owners replacing older fuel pump parts
Mercury/Mariner OEM Match
Sierra 18-7812 Marine Fuel Pump Kit
- Interchangeable with several Mercury-related part numbers
- Includes O-rings for the kit
- Vehicle-specific fit for boat use
Best For: Mercury and Mariner owners checking exact part-number compatibility
OMC Repair-First Choice
SouthMarine 393103 Fuel Pump Repair Kit
- Matches 393103/0393103 and related references
- Designed to repair fuel pump 0388268
- OE-equivalent, vehicle-specific boat fit
Best For: Compatible Evinrude, Johnson, and BRP OMC owners needing a targeted repair
Mercury Repair Pick
Mercury 80-125 HP Fuel Pump Kit
- Direct replacement for Mercury 811287 and 1395-811287.
- Fits select Mercury 80 jet and 4-cylinder 100/115/125 HP models.
- Plug-and-play repair kit for fuel delivery issues.
Best For: Mercury and Mariner owners with compatible 80-125 HP outboards.
Johnson/Evinrude Compact Fit
- Fits Johnson/Evinrude 6-25 HP outboards.
- Includes pump, straps, gasket, and instructions.
- Replaces 397839, 397274, 395091, and more.
Best For: Owners of smaller Johnson/Evinrude outboards needing a complete replacement kit.
Classic Johnson/Evinrude Replacement – Marine Fuel Pump Rebuild Kit
If you need an outboard motor fuel pump kit for a wide range of older Johnson and Evinrude engines, this replacement pump is built around broad OEM compatibility. It comes with a gasket and is intended for vehicle-specific fit on many 2-stroke boat motors, making it a practical choice when you want to restore fuel delivery with a direct-style replacement.
Best For: Owners of compatible Johnson/Evinrude outboards who want a gasket-included replacement pump
Pros:
- Compatible with many Johnson/Evinrude outboards from 18hp to 140hp
- Includes the fuel pump and gasket in the package
- Aluminum alloy construction is described as low-pressure and leak-resistant
- Cross-references several OE part numbers for easier matching
Cons:
- Compatibility is broad, so part-number verification is important
- Mechanical replacement only, not a universal fit
For older OMC-powered boats, this kit is a straightforward way to replace a worn pump without buying extra sealing parts separately. The key is checking the listed engine range and OEM numbers before ordering so you get the right match.
Broad Mercury 2-Stroke Match – 14360A78 Outboard Fuel Pump
This outboard motor fuel pump kit is aimed at Mercury 2-stroke engines across a very wide horsepower range, from 30 HP up to 300 HP. It is designed as an internal replacement part and is described as a stable, wear-resistant option for restoring smoother fuel delivery on the water.
Best For: Mercury 2-stroke boat owners replacing an internal fuel pump across many horsepower ratings
Pros:
- Covers Mercury 2-stroke engines from 30 HP to 300 HP
- Cross-references multiple OEM part numbers, including 14360A78 and 14360A73
- Internal, vehicle-specific replacement with threaded outlet connection
- Described as stable, durable, and engineered for smoother fuel delivery
Cons:
- Replacement part is specific to Mercury 2-stroke applications
- Does not include extra service components or filters
If your Mercury engine falls within the listed range, this pump is a strong candidate for a direct replacement. Its broad compatibility and internal fit make it especially useful for owners who want a straightforward swap rather than a more complex service kit.
OEM-Style Pump Kit – Sierra 18-7800 Marine Fuel Pump Kit
For buyers looking for an outboard motor fuel pump kit with service parts included, this Sierra kit is a compact replacement for Johnson/Evinrude applications. It is built to meet or exceed original equipment quality and includes the small components needed for a proper rebuild-style installation.
Best For: Johnson/Evinrude owners who want a compact repair kit with valves, O-rings, and gasket
Pros:
- Meets or exceeds original equipment quality
- Includes check valves, O-rings, and a fuel pump gasket
- Interchanges with several Johnson/Evinrude, GLM, and Mallory numbers
- Very small, lightweight kit for targeted repairs
Cons:
- Kit components are specific to the listed pump assembly
- Not a full pump assembly on its own
This is a good choice when you want to service rather than replace the entire fuel pump assembly. The included valves and seals make it especially useful for restoring a pump that still has a serviceable housing.
Complete Mercury Service Kit – 8M0118177 Outboard Fuel Pump Kit
If you want an outboard motor fuel pump kit that goes beyond the pump itself, this Mercury service kit bundles fuel system parts and related maintenance items in one package. It is made for Mercury Marine 4-stroke outboards in the 30 to 60 HP range and covers both EFI and carbureted 3- and 4-cylinder models.
Best For: Mercury 4-stroke owners who want a bundled service kit with pump and filter components
Pros:
- Complete kit includes fuel pump, fuel filter, inline fuel filter, gear lube oil pump, and drain plug gaskets
- Fits Mercury Marine 4-stroke 30-60 HP engines from 2002-2012
- Covers both EFI and carb 3- and 4-cylinder models
- Cross-references several OEM pump and filter numbers
Cons:
- Limited to specific Mercury 4-stroke applications
- More components than needed if you only want a pump replacement
This kit makes sense when you are handling broader maintenance and want multiple service items in one order. For the right Mercury application, it can simplify upkeep and help maintain steady fuel delivery with fewer separate purchases.
OEM-Style Johnson/Evinrude Fit – 438556 Replacement Fuel Pump Kit
If you need an outboard motor fuel pump kit for a compatible Johnson or Evinrude engine, this replacement kit is built around specific part-number matchups and older horsepower ranges. It combines the pump assembly with a carburetor, filter, and gasket, which makes it a practical choice when you want to refresh multiple related components at once.
Best For: Owners of compatible Johnson/Evinrude outboards looking for a full replacement kit for older engines.
Pros:
- Replaces multiple part numbers, including 438556, 388268, 385781, 395713, 394543, and 382354
- Fits a wide range of Johnson/Evinrude models, including 25hp, 33hp, 35hp, 50hp, 55hp, and 85hp applications listed in the notes
- Includes carburetor, filter, and gasket for a more complete repair
- Uses corrosion-resistant materials for marine use
Cons:
- Fitment is specific to listed engine models and years
- Best suited for replacement use rather than universal applications
This kit makes sense if you are matching a known Johnson/Evinrude part number and want a more complete service package. The key is verifying your engine model and reference number before ordering.
Mercury/Mariner OEM Match – Sierra 18-7812 Marine Fuel Pump Kit
This outboard motor fuel pump kit is a vehicle-specific replacement for Mercury and Mariner applications, with interchangeable references tied to known OEM and aftermarket numbers. It is a compact kit that includes O-rings and is meant for buyers who want to confirm fit by part number before replacing the pump assembly.
Best For: Mercury/Mariner owners who need a part-number-based replacement kit with OEM-equivalent references.
Pros:
- Interchangeable with GLM 40360, Mallory 9-37751, Mercury 89031A2, and 66599A2
- Includes O-rings 18-7411 and 18-7120
- Listed as a vehicle-specific fit for boat use
- OEM-equivalent reference to Mercury Marine 89031A2
Cons:
- Fit depends on confirming part numbers before purchase
- Limited to specific Mercury/Mariner applications
If your repair depends on an exact cross-reference, this Sierra kit is a straightforward option. The compact design and included O-rings make it a focused replacement, but verifying compatibility is essential.
OMC Repair-First Choice – SouthMarine 393103 Fuel Pump Repair Kit
For buyers searching for an outboard motor fuel pump kit that supports OMC and BRP applications, this repair kit targets specific fuel pump part numbers and replacement references. It is designed for vehicle-specific use and is meant to repair compatible pump assemblies rather than serve as a universal solution.
Best For: Owners of compatible Evinrude, Johnson, BRP OMC, or related engines needing a part-number-specific repair kit.
Pros:
- Matches part numbers 393103 and 0393103, with references to 18-7820 and 40820
- Suitable for repairing fuel pump 0388268
- Vehicle-specific fit for boat applications
- Listed with OE-equivalent specification
Cons:
- Compatibility must be checked carefully before buying
- Repair kit format is only suitable when rebuilding an existing pump
- Fitment is limited to specific engine groups and horsepower listings
This is the kind of replacement kit to consider when you already know the pump number you need to service. It is best used as a targeted repair part for matching outboard applications.
Mercury Repair Pick – Mercury 80-125 HP Fuel Pump Kit
If you need an outboard motor fuel pump kit for a Mercury 80-125 HP engine, this repair kit is aimed at restoring fuel delivery on compatible Mercury and Mariner setups. It is a direct replacement for Mercury OE part numbers 811287 and 1395-811287, plus Sierra 18-97354, and it is designed for specific 4-cylinder 100, 115, and 125 HP models from 1988 to 2004.
Best For: Mercury and Mariner owners needing a direct-fit repair kit for compatible 80-125 HP outboards.
Pros:
- Direct replacement for Mercury 811287, 1395-811287, and Sierra 18-97354.
- Built for Mercury 80 jet and 4-cylinder 100/115/125 HP engines.
- Intended to help prevent stalling and other fuel-related issues.
- Plug-and-play installation with no specialized tools required.
Cons:
- Compatibility is limited to specific Mercury/Mariner engine families and years.
- This is a repair kit, not a full fuel pump assembly.
For owners with the matching Mercury platform, this is a practical repair-focused option that targets common fuel delivery problems without adding installation complexity. The key is verifying exact engine fit before ordering.
Johnson/Evinrude Compact Fit – 6-25 HP Marine Fuel Pump Kit
This outboard motor fuel pump kit is geared toward smaller Johnson and Evinrude engines, covering 6 to 25 HP marine motors. It replaces several OEM numbers, including 397839, 397274, 395091, and 391638, and comes as a complete package with the pump, straps, gasket, and install instructions.
Best For: Smaller Johnson/Evinrude outboard owners wanting a replacement pump kit with included hardware.
Pros:
- Fits Johnson/Evinrude outboards in the 6, 8, 9.5, 9.9, 15, and 25 HP range.
- Replaces multiple OEM and aftermarket references, including Sierra 18-7350.
- Package includes pump, straps, gasket, and install instructions.
- Made with marine-grade materials and stainless steel body components.
Cons:
- Limited to specific Johnson/Evinrude small-engine applications.
- Uses a foot-mount design, so it is not universal.
For compact marine motors, this kit offers a straightforward replacement path with the core hardware needed for installation. It is a sensible choice if your model matches the listed OEM references and horsepower range.
Wide-Range Replacement – Johnson Evinrude 20-140 HP Pump
If you are shopping for an outboard motor fuel pump kit for a broad range of Johnson Evinrude engines, this replacement is built around the 18-7352 / 438556 fitment family. It is listed for many 20 to 140 HP models and is designed to address fuel delivery problems such as hard starting, stalling, and reduced power when the original pump wears out.
Best For: Johnson Evinrude owners who need a widely compatible replacement pump for mid- to larger-horsepower outboards.
Pros:
- Covers a wide Johnson Evinrude horsepower range from 20 HP up to 140 HP.
- Replaces 438556, 388268, 385781, and Sierra Marine 18-7352.
- Built from alloy and metal components for durability and corrosion resistance.
- Includes a gasket and is described as straightforward to install.
Cons:
- Fitment is still specific to listed Johnson Evinrude applications.
- No accessory bundle is listed beyond the pump and gasket.
This is the most versatile option in the group if your motor falls within the listed Johnson Evinrude range. Its broad fitment and durable construction make it a strong replacement candidate, but confirming the exact part number remains important.
How We Picked the Best Outboard Motor Fuel Pump Kit
We focused on compatibility first, since an Outboard Motor Fuel Pump Kit is only useful when it matches the engine family and horsepower range. We also looked for clear replacement part numbers, broad application lists, and kits that include common install essentials such as gaskets or service components. Marine-use relevance, brand fit, and value for maintenance or repair were also considered.
Quick Comparison
Some kits are built for Johnson/Evinrude applications, while others target Mercury and Mariner engines. A few cover narrow horsepower bands for smaller motors, while others support much wider ranges for mid- to high-horsepower setups. The best choice usually comes down to whether you need a direct replacement for a specific OEM number or a broader repair kit for an older motor.
Key Buying Factors for an Outboard Motor Fuel Pump Kit
Exact Engine Compatibility
Match the kit to your engine brand, model, and horsepower rating. Even similar-looking pumps can differ in diaphragm layout, bolt pattern, or fuel line connections.
OEM Cross-Reference Numbers
Part numbers are one of the fastest ways to confirm fit. If your existing pump or service manual lists an OEM number, compare it carefully before ordering.
Kit Contents
Some kits include only the pump housing and diaphragm components, while others add gaskets, filters, or repair pieces. More complete kits can simplify maintenance, especially on older outboards.
Engine Age and Condition
Older engines may need a repair kit rather than a simple swap. If the housing is worn, corroded, or cracked, a full replacement may be the better long-term fix.
Material and Marine Durability
Look for marine-grade construction that can handle vibration, fuel exposure, and moisture. Reliable sealing and sturdy diaphragms matter for consistent fuel delivery over time.
Who Should Buy Which Outboard Motor Fuel Pump Kit?
If you want a direct replacement for a known Johnson/Evinrude or Mercury application, choose the kit with the closest OEM match and tightest horsepower range. If you’re servicing an older outboard, a repair kit with more included parts may offer better value and a higher chance of restoring proper operation.
For owners maintaining multiple boats or older engines, it can also help to keep your engine’s part number, model year, and horsepower rating on hand. That makes it easier to choose the right Outboard Motor Fuel Pump Kit the first time and avoid compatibility issues after delivery.