Key Benefits
- OEM quality & correct fit: Briggs & Stratton genuine parts are designed to exact OEM standards to help deliver optimum performance and proper fitment.
- Helps maintain engine power & reliability: Air filters are designed to stop dust/debris entering the engine; a clogged filter can restrict airflow and contribute to power loss.
- Essential service item: Replacing the air filter during routine servicing helps keep equipment running efficiently in dusty, outdoor environments.
Fitment & Compatibility
This cartridge is listed by Briggs & Stratton as an Air Filter that fits 3LC engines (confirm by engine Model/Type/Code to ensure correct selection).
It is also used on selected type variants across a range of Vanguard / Briggs engine models (examples include 356447, 358772, 358776, 358777, 385777, 437447, 474177, 588447, 589447, 58A447 and others – selection varies by type code).
Replaces / Cross-references: commonly listed as replacing 1718908SM (always verify against your parts list).
Not sure it fits? Message us your engine Model / Type / Code and we’ll confirm compatibility before you order.
Specifications (Approx.)
| OEM Part Number | 820263 |
|---|---|
| Part Type | Air cleaner cartridge / Filter‑A/C cartridge |
| Approx. Length | 179 mm (≈ 18 cm) |
| Approx. Outside Diameter | 89 mm (≈ 9 cm) |
| Approx. Inside Diameter | 44.5 mm |
What’s in the Box
- 1 × Genuine Vanguard / Briggs & Stratton air cleaner cartridge (820263)
Service Tips
- Inspect the cartridge regularly and replace sooner in dusty conditions.
- Ensure the sealing faces are clean and the filter is seated correctly to prevent unfiltered air bypass.
Why buy from Mitchell Powersystems? Genuine OEM supply, fast UK dispatch, and expert parts support to help you get the right part first time.