Description
Overview:
This Filter-Pre Cleaner is a genuine Briggs & Stratton foam sleeve designed to protect the main air filter on engines including 319775 and 31G777. Made from durable, open-cell green foam, it traps larger dirt, grass, and debris before they reach the primary paper element, helping the engine breathe clean air and reducing wear. The pre-cleaner supports reliable starting, steady performance, and longer service intervals. Suited to a wide range of Briggs & Stratton V-Twin and single-cylinder engines used on lawn tractors, ride-on mowers, and other outdoor power equipment, it is a simple, effective way to maintain efficiency. This part is a direct replacement for OEM No. 797704 and is designed to fit snugly around the main filter housing where specified by the engine manufacturer.
Key Features:
- Genuine Briggs & Stratton part for assured fit and quality
- Open-cell foam pre-filter captures coarse debris to protect the main filter
- Helps maintain airflow for consistent performance and reduced engine wear
- Washable and reusable when serviced correctly (check your engine manual for care guidance)
- Simple, tool-free installation on compatible filter housings
- Extends the life of the primary filter and can lengthen service intervals
- Durable foam construction resists tearing and compression under normal use
- Direct replacement for OEM No. 797704 for straightforward identification
Typical Applications:
Used on Briggs & Stratton-powered lawn tractors, garden tractors, and larger walk-behind equipment operating in dusty or grassy conditions. Ideal for regular maintenance where clippings and debris are common, helping to keep engines running smoothly across domestic, commercial, and grounds-care tasks.
Also known as:
Air filter pre-cleaner, pre-filter wrap, foam outer filter, pre-cleaner sleeve, engine intake pre-filter.
Fits Models:
319775, 31G777, 31P777, 31Q507, 31Q577, 31R507, 31R577, 31R607, 31R677, 31R707, 31R777, 31R807, 31R877, 31R907, 31R975, 31R976, 31R977, 40N777, 40N877, 40R577, 40R677, 40R877, 40U777, 44C677, 44C777, 44C877, 44J677, 44N677, 44N877, 44Q777, 44Q977, 44R577, 44R677, 44S977, 44T977, 44U577, 44U677, 44U777, 44U877, 44X977, 44Y977, 49C877, 49E877, 49J677, 49R977, 49T777, 49T877, 49V677, 49X977
Alternate Part Numbers:
797704, BS797704
Product Specifications
| L&S Part No. | BS797704 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Briggs & Stratton |
| OEM No. | 797704 |
| Unit of Sale | 1 |
| Applications | 319775, 31G777, 31P777, 31Q507, 31Q577, 31R507, 31R577, 31R607, 31R677, 31R707, 31R777, 31R807, 31R877, 31R907, 31R975, 31R976, 31R977, 40N777, 40N877, 40R577, 40R677, 40R877, 40U777, 44C677, 44C777, 44C877, 44J677, 44N677, 44N877, 44Q777, 44Q977, 44R577, 44R677, 44S977, 44T977, 44U577, 44U677, 44U777, 44U877, 44X977, 44Y977, 49C877, 49E877, 49J677, 49R977, 49T777, 49T877, 49V677, 49X977 |
| Fits Brands | Briggs & Stratton |
Reviews
Ask a Question
Compatibility
Customers also bought
Related Products
-
![]()
Oil Filter for Briggs & Stratton Engines - BS492932S£12.98 £10.82
