High Pressure Electric Fuel Pump with Regulator – Fits MerCruiser & Yamaha V8/V6 Engines (Replaces 866169T01, 866169A01)
High Pressure Electric Fuel Pump with Regulator – Fits MerCruiser & Yamaha V8/V6 Engines (Replaces 866169T01, 866169A01) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
High Pressure Electric Fuel Pump with Regulator – Fits MerCruiser &...
Product Details
This is a direct-fit High Pressure Electric Fuel Pump with Regulator designed for a range of MerCruiser and Yamaha engines equipped with the Gen III Cool Fuel module. It ensures consistent fuel pressure and flow, restoring performance and reliability to your V6 or V8 marine engine.
This assembly serves as a direct interchange for Mercury part numbers 866169T01, 866169A01, and others, as well as Yamaha 6C5-13907-00-00.
- Engineered specifically for installation within the Gen III Cool Fuel module.
- Integrated regulator maintains precise fuel flow for optimal engine operation.
- Designed for use with standard marine gasoline.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 866169T01 |
| Mercury | 866169A01 |
| Mercury | 880889T02 |
| Mercury | 8M0065218 |
| Yamaha | 6C5-13907-00 |
| Yamaha | 6C5-13907-00-00 |
| Sierra | 18-8864 |
| ProTorque | PH500-M063 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For MerCruiser applications, this pump fits V8 engines using the Gen III Cool Fuel module system.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | 305 CID V8 | 4-Stroke | 866169T01 | With Gen III Cool Fuel module | ||
| MerCruiser | 350 CID V8 | 4-Stroke | 866169T01 | With Gen III Cool Fuel module | ||
| MerCruiser | 377 CID V8 | 4-Stroke | 866169T01 | With Gen III Cool Fuel module | ||
| MerCruiser | 496 CID V8 | 4-Stroke | 866169T01 | With Gen III Cool Fuel module | ||
| MerCruiser | 502 CID V8 | 4-Stroke | 866169T01 | With Gen III Cool Fuel module |
For Yamaha applications, this pump fits a variety of 4-stroke outboards from 2005 onwards that use the specified OEM part number.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | F40D/G/H | 40 | 4-Stroke | 2006+ | 6C5-13907-00-00 |
| Yamaha | F50F/H/T | 50 | 4-Stroke | 2005+ | 6C5-13907-00-00 |
| Yamaha | F60A/B/C/F/T | 60 | 4-Stroke | 2005+ | 6C5-13907-00-00 |
| Yamaha | F70A | 70 | 4-Stroke | 2011+ | 6C5-13907-00-00 |
| Yamaha | F75C/T | 75 | 4-Stroke | 2005–2009 | 6C5-13907-00-00 |
| Yamaha | F80A/B/C | 80 | 4-Stroke | 2005+ | 6C5-13907-00-00 |
| Yamaha | F90A/B/T | 90 | 4-Stroke | 2005+ | 6C5-13907-00-00 |
| Yamaha | F100D | 100 | 4-Stroke | 2005+ | 6C5-13907-00-00 |
Technical Specs
- Product Type
- High Pressure Electric Fuel Pump with Regulator
- Installation
- Specific to Gen III Cool Fuel module
- Fuel Type
- Gasoline (Marine)
- Dimensions
- 8.5 x 8.5 x 17.5 inches (215.9 x 215.9 x 444.5 mm)
- Weight
- 0.98 lb (0.44 kg)
- Other Technical Attributes
- High pressure pump with regulator for precise fuel flow level
What’s in the Box
- 1 x Fuel Pump/Regulator Kit (866169T01)
Installation Notes
- Disconnect the battery and relieve fuel system pressure according to your engine's service manual.
- Locate the Gen III Cool Fuel module and disconnect the fuel lines and electrical connectors.
- Remove the module from the engine block.
- Disassemble the module to access the high-pressure fuel pump. Note the orientation of all components.
- Remove the old fuel pump assembly and replace it with the new unit, ensuring all seals are correctly seated.
- Reassemble the Cool Fuel module, checking all O-rings and gaskets for damage.
- Reinstall the module onto the engine, reconnect fuel lines and electrical harness.
- Reconnect the battery, prime the fuel system, and check for leaks before starting the engine.
Troubleshooting & FAQ
How do I know if my fuel pump is failing?
Common signs of a failing high-pressure fuel pump include difficulty starting, engine stalling, rough idling, poor acceleration, and a noticeable loss of power, especially at high RPMs. You may also hear a whining noise from the fuel tank area.
Is this pump compatible with ethanol-blended fuels?
This pump is designed for standard marine gasoline. While it can tolerate ethanol blends up to E10, prolonged use of higher concentrations is not recommended as it can degrade fuel system components.
Does this pump fit engines with the older Gen II Cool Fuel system?
No, this high-pressure pump is specifically designed for the MerCruiser Gen III Cool Fuel module. The design and connections are different from the Gen II system. Please verify your module type before ordering.
What is the function of the integrated regulator?
The built-in fuel pressure regulator ensures that the fuel is delivered to the injectors at the precise pressure required by the engine's computer (ECU). This is critical for maintaining the correct air-fuel ratio, engine performance, and fuel efficiency.
Can I replace just the pump instead of the whole assembly?
This unit is sold as a complete pump and regulator assembly. Attempting to separate them is not recommended, as they are calibrated to work together. Replacing the full assembly ensures proper function and pressure regulation.
Why would my new pump read a different pressure than the old one?
Pressure differences can occur if the old pump was failing and operating below specification. This new pump is calibrated to meet or exceed OEM pressure standards for the listed engines. Always test pressure against the specifications in your official service manual.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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