New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US
New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US is a direct-fit replacement fuel pump priced at $35.56. Designed for marine inboard engines, it ensures reliable fuel delivery for MerCruiser and OMC 2.5L to 4.1L models from 1964–1989, especially where the filter bowl faces upward.
● In stock
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Key features
- Replaces 86234A05, 60032, 18-7278
- Fits MerCruiser 3.0, 3.7, 4.1L engines
- Compatible with OMC 2.5L, 3.0L models
- For filter bowl facing up only
- OEM-spec mechanical design
- Direct bolt-on installation
- Verified by serial number ranges
Pros
- +Affordable at $35.56
- +Exact OEM replacement fit
- +Easy to install for DIYers
- +Durable for marine use
- +Wide model coverage
Cons
- −Only for upward-facing bowl
- −Not for all 1983–1989 models
- −Requires serial verification
About New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US
What is New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US?
This new fuel pump is engineered as a direct replacement for select MerCruiser and OMC marine inboard engines from 1964 to 1989. Compatible with 2.5L, 3.0L, 3.7L, and 4.1L GM-based engines, it replaces OEM part numbers including 86234A05, 60032, and 18-7278. Built to meet original specifications, it delivers consistent fuel pressure for reliable engine performance. Ideal for boat owners maintaining older inboard systems, this pump supports smooth starts and steady operation in freshwater and marine environments.
Key features
- Exact Fit — Replaces 86234A05, 60032, 18-7278, and related OEM numbers.
- Broad Compatibility — Fits MerCruiser 3.0, 3.7, 4.1L and OMC 2.5, 3.0L engines from 1964–1989.
- Filter Bowl Orientation — Designed for models where the filter bowl faces upward.
- Robust Construction — Built for durability in marine-grade fuel systems.
- Easy Installation — Direct bolt-on replacement with no modifications needed.
- Reliable Flow — Maintains proper fuel pressure for consistent engine performance.
- Serial Range Match — Verified fit for specific serial number ranges across multiple models.
Who is New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US for?
This fuel pump serves DIY boat owners and marine mechanics maintaining older MerCruiser and OMC inboard engines. It’s best suited for those restoring or repairing boats from the 1960s through the 1980s, particularly with GM-derived 4- and 6-cylinder powerplants. Users must verify fit by checking flange ID numbers or inlet/outlet clock positions to ensure compatibility.
How does New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US compare?
Compared to modern electric fuel pumps or aftermarket universal kits, this mechanical pump offers a true OEM-style solution for vintage marine engines. Unlike generic replacements, it matches original flow rates and mounting specs. It’s more affordable than dealer-sourced OEM units while maintaining form and function. However, it’s not interchangeable with downward-facing bowl models, requiring careful identification before purchase.
Best use cases
- →Replacing failed mechanical fuel pump
- →Restoring vintage MerCruiser engine
- →Maintaining OMC 3.0L inboard system
- →Boat repair with GM 4.1L engine
- →Upgrading worn OEM fuel pump
Is New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US right for you?
Buy this fuel pump if you own a MerCruiser or OMC inboard from 1964–1989 and need an OEM-spec replacement. Ideal for DIY mechanics with basic tools. Confirm fit by checking your current pump's flange ID or inlet orientation. Not for downward-facing filter bowls. Consider professional help if unsure. Alternatives include pricier dealer OEM parts or universal kits requiring modification.
How it compares: Compared to universal electric fuel pumps, this mechanical unit offers a plug-and-play fix for vintage marine engines. It’s more reliable than modified adapters and cheaper than dealer OEM parts, but less flexible than modern systems requiring wiring and regulators.
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What engines does this fuel pump fit?
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It fits MerCruiser 3.0L, 3.7L, and 4.1L, plus OMC 2.5L and 3.0L engines from 1964–1989. Confirm compatibility using serial numbers or flange ID stamps to ensure correct match for your model year and configuration.
Does this pump work with downward-facing filter bowls?
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No, this pump is designed only for models where the fuel filter bowl faces upward. If your current pump has a downward-facing bowl, this is not the correct replacement. Check your setup before ordering.
How do I verify this is the right fuel pump?
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Check the stamped ID number on the rocker arm flange of your old pump or note the clock position of the fuel inlet and outlet. Match these to the specs provided to confirm compatibility.
Is installation difficult?
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Installation is straightforward for most DIYers. It’s a direct bolt-on replacement requiring basic hand tools. Ensure fuel system is depressurized and follow safety precautions when working with gasoline components.
Can I use this for a 1983–1984 Merc 3.7L 488 model?
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Yes, but only if your filter bowl faces upward. The 1983–1984 488 model used two different pumps. Verify your configuration by checking the bowl orientation or flange ID before purchase.
How much does New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US cost?
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New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US is $35.56 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US in stock at Lab Work Auto?
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Yes, New Fuel Pump For MerCruiser 3.0 3.7 4.1L OMC 2.5 3.0L 86234A05 60032 18-7278 US is currently in stock at Lab Work Auto.
Specifications
- SKU
- F7-6725