Sierra Marine Fuel Pump 18-7267 – MerCruiser / Volvo Penta GM V8 Mechanical Fuel Pump
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Sierra 18-7267 Fuel Pump is a mechanical, engine-mounted fuel pump designed for GM-based V8 marine engines used in MerCruiser, Volvo Penta, and OMC applications. This pump delivers consistent fuel flow from the tank to the carburetor, ensuring reliable engine performance across all RPM ranges.
Built with a marine-safe vented design, this pump helps prevent fuel from entering the bilge in the event of diaphragm failure—meeting critical marine safety requirements.
Engineered to meet or exceed OEM specifications, this pump is a direct replacement for original equipment on carbureted V8 engines.
Key Features
- Mechanical diaphragm-style fuel pump
- Designed specifically for GM V8 marine engines
- Marine-safe vent/overflow tube design
- Engine-mounted (camshaft-driven)
- Provides consistent fuel delivery under load
- Corrosion-resistant marine-grade construction
- Sierra limited lifetime warranty
Engine Compatibility
MerCruiser (GM-Based V8 Engines)
- 5.0L V8
- 5.7L V8
- 6.2L V8
Volvo Penta
- 5.0L V8
- 5.7L V8
OMC / Cobra / Inboard
- GM-based V8 engines
➡️ Fits carbureted engines only (not compatible with EFI systems)
Serial Number Fitment Notice
Fitment depends on fuel system configuration and pump style.
⚠️ Always confirm:
- Carbureted vs fuel-injected engine
- Mounting configuration
- Fuel line and vent tube routing
Serial number verification is strongly recommended.
When This Part Needs Replacement
Replace the fuel pump if you experience:
- Hard starting or extended cranking
- Engine stalling or hesitation
- Fuel starvation at higher RPM
- Fuel leaks or fuel smell in bilge
- Oil contamination due to diaphragm failure
Installation Notes
- Properly route the vent/overflow tube (critical safety feature)
- Replace mounting gasket during installation
- Inspect fuel lines and filters
- Ensure correct pushrod engagement
- Prime fuel system before startup
Alternate / Superseded Part Numbers
OEM Cross References
- Mercury / MerCruiser:
- 97401A2
- 861155A1
- Volvo Penta:
- 3854858
- OMC:
- 0985444
Aftermarket Cross References
- Mallory: 9-35402
- Carter: M6624
- Airtex: M6624
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.