Technical description for Briggs & Stratton OEM Pre Cleaner (Part 491435S).

Key Features

• External pre-filtration stage designed to intercept large dust and debris before reaching the main air filter.
• Genuine Briggs & Stratton OEM pre-cleaner (491435S) ensures correct fit and performance.
• Durable foam media resists wear and repeated cleaning in outdoor environments.
• Secure slip-on installation positioned ahead of the primary filter housing to reduce main filter clogging.
• Supports consistent engine performance in dusty, dry conditions typical of mowing, landscaping, and grounds maintenance.

Product Details

• Part Reference: 491435S – Briggs & Stratton OEM pre-cleaner.
• Construction: Durable foam media with pre-filtration capability.
• Function: Intercepts large dust and debris to protect the main air filter and maintain airflow.
• Fit: Precision-matched to compatible air filter housings for a secure, slip-on installation.
• Operating Context: Suited for engines and outdoor power equipment used in dusty environments.
• Alternate references: 491435, 792435, 799435 appear in catalogs as cross-references (availability varies; verify with parts diagram).

Compatibility

• Used on select Briggs & Stratton engines and outdoor power equipment where an external pre-filter is specified in the air intake assembly.
• Typical applications include horizontal-shaft single-cylinder OHV engines, walk-behind lawn mowers, garden tractors and similar turf equipment.
• Exact compatibility depends on the engine’s Model–Type–Code; always verify with the parts manual before ordering.
• Cross-reference caution: cross-reference numbers may appear as 491435 (standard), 792435, or 799435 depending on production lot.