Sierra 18-7914 Oil Filter Mercury 25-30HP 822626K04 35-822626Q04
35-822626Q04
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Sierra 18-7914 Oil Filter
For selected Mercury FourStroke outboards
The Sierra 18-7914 is a branded spin-on engine oil filter for selected Mercury FourStroke outboards. It is engineered as a service replacement for the listed Mercury, Quicksilver and aftermarket references and helps remove damaging contaminants from the lubricating oil.
Key Features
- ✔ Genuine Sierra-branded replacement filter
- ✔ Spin-on design for straightforward routine servicing
- ✔ 20mm x 1.5 thread specification
- ✔ Cross-references multiple Mercury and Quicksilver numbers
- ✔ Suitable for selected 25HP and 30HP FourStroke applications
Technical Specs
| Brand | Sierra |
| Sierra part number | 18-7914 |
| Filter type | Spin-on engine oil filter |
| Thread | 20mm x 1.5 |
| Typical application | Selected Mercury 25–30HP FourStroke |
| 4Boats SKU | 35-822626Q04 |
Compatibility / Fitment Guide
Listed for selected Mercury 25HP FourStroke 2-cylinder engines (approximately 1997–2006) and selected 30HP FourStroke 3-cylinder engines (approximately 1999–2001). Model years are a guide only. Match the filter reference on the engine or consult the serial-number-specific Mercury parts catalogue before purchase.
Part Number Cross Reference
| Sierra | 18-7914 |
| Mercury / Quicksilver | 35-822626; 35-8226261; 35-822626A2; 35-822626K04; 35-822626Q04; 35-8M0065103; 35-8M0065104 |
| Wix | 51356 |
| Fram | PH7317 |
| 4Boats SKU | 35-822626Q04 |
Cross-reference numbers identify potential equivalents; always confirm dimensions, thread and engine application before installation.
Questions & Answers
Is this a genuine Mercury filter?
No. This is a genuine Sierra filter supplied as an aftermarket service replacement.
Does it fit all Mercury 25HP and 30HP engines?
No. Compatibility is limited to selected FourStroke models. Confirm the original number and engine serial number.
Is an O-ring supplied separately?
This is a spin-on filter with its sealing gasket incorporated into the filter. Check the product received before fitting.
How often should I replace it?
Replace it at the interval specified in the Mercury service schedule, normally as part of an engine-oil change.
Note: Lubricate the new filter gasket with clean engine oil, tighten according to the engine manual and check for leaks after running.
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