Description
Overview:
This genuine Briggs & Stratton pre-filter (OEM 491435S) is a foam air-intake pre-cleaner designed to protect and extend the life of your engine's main air filter. Made from durable green foam, it sits before the primary filter to capture larger dust and debris, helping maintain clean airflow and stable engine performance. It is suitable for a range of small engines used in garden and construction equipment, including the Briggs & Stratton 21T215-0110-G2 10 HP Series and 20S237-0042-F1 1400 GT Series. By reducing the amount of dirt reaching the main filter, it supports easier starting, smoother running, and consistent power output. The foam sleeve design is straightforward to fit and service as part of your routine maintenance schedule.
Key Features:
- Genuine Briggs & Stratton part for assured fit and performance (OEM 491435S)
- Durable foam construction helps trap coarse particles before they reach the primary filter
- Helps maintain clean, steady airflow for better efficiency and reliability
- Supports longer intervals between main filter changes, reducing downtime
- Simple slide-on/sleeve design for quick fitting and removal
- Suitable for engines used on mowers, generators, pressure washers, and compactors
- Can be cleaned and refitted as part of routine servicing
- Designed for consistent performance in dusty outdoor conditions
- Lightweight and compact for easy storage in service kits
- Genuine Part branding for quality assurance and correct specification
Typical Applications:
Used on Briggs & Stratton engines powering lawn mowers, garden tractors, pressure washers, generators, tillers, and light construction machines such as plate compactors. Ideal where equipment operates in dusty or debris-heavy environments, helping protect the main air filter, reduce wear, and keep engines running smoothly over longer working periods.
Also known as:
Air pre-cleaner, foam prefilter, pre-cleaner sleeve, air filter pre-wrap, engine pre-filter foam, intake pre-filter, foam air cleaner wrap.
Fits Models:
21T215-0110-G2 10 HP Series
20S237-0042-F1 1400 GT Series
Alternate Part Numbers:
491435S, BS491435S
Product Specifications
| L&S Part No. | BS491435S |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Briggs & Stratton |
| OEM No. | 491435S |
| Unit of Sale | 1 |
| Applications | 21T215-0110-G2 10 HP Series, 20S237-0042-F1 1400 GT Series |
| Machine Type | Engines |
| Fits Brands | Briggs & Stratton |
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