Sierra 18-7921 Marine Oil Filter Mercury Verado 135-200HP 4-Stroke 35-877767Q01
18-7921
- Dispatched in 2-3 days
- 30 Day Return Policy
- Low stock - 5 items left
- Backordered, shipping soon
Sierra 18-7921 Marine Oil Filter
Replaces Mercury 35-877767Q01 | Premium 4-Cycle Protection
The Sierra 18-7921 Oil Filter is a high-efficiency replacement part specifically designed for the demanding conditions of marine environments. Engineered to meet or exceed original equipment (OE) filtration standards, this spin-on filter ensures clean oil delivery to your Mercury or Mariner outboard, protecting internal components from premature wear and corrosion.
Key Features
- ✔ Anti-Drain-Back Valve: Prevents dry starts.
- ✔ High-Efficiency Media: Traps more contaminants.
- ✔ Direct Fit: Seamless replacement for Mercury L4 Verado.
- ✔ Marine-Grade: Epoxy coated for durability.
Technical Specs
| Thread Size | 24mm x 1.5 |
| Height | Approx. 4.0" |
| Diameter | Approx. 3.25" |
| Valve Type | Anti-Drain Back |
Compatibility / Fitment Guide
| Engine Family | HP Range | Notes |
|---|---|---|
| Mercury Verado L4 | 135 HP / 150 HP | Inline 4-Cylinder (2006-2020) |
| Mercury Verado L4 | 175 HP / 200 HP | Inline 4-Cylinder (2006-2020) |
| Mariner 4-Stroke | 135 - 200 HP | Equivalent Verado models |
OEM Cross Reference
| Mercury Marine | 35-877767Q01, 35-877767K01, 35-896546T |
| Quicksilver | 35-877767Q01 |
| Mallory Marine | 9-57821 |
| Fram | CH836PL |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part from Sierra (Dometic Marine), manufactured to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
We recommend checking the SKU/MPN and Cross Reference list provided above. If your original filter is marked 35-877767Q01 or 35-896546T, this is a guaranteed fit.
Will this fit the 6-cylinder Verado models?
No, this filter (18-7921) is specifically for the Inline 4-cylinder Verado engines. 6-cylinder Verado models typically require Sierra part number 18-7918.
Note: Please verify your original part number against the references above before purchasing. All technical data is sourced from Sierra Marine catalog records for domain 4boats.co.uk.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
