Briggs & Stratton Air Filter - 270528S (4 Pack - 4133)

Overview

Briggs & Stratton Genuine OEM foam air filter designed for Briggs & Stratton single‑cylinder petrol engines in the 7–8 hp range. The foam filtration element traps dust and particulates while preserving sufficient airflow to support easy starts and smooth operation. Supplied as a 4‑pack for regular servicing, seasonal maintenance, and fleet stock management. Part references: 270528S (individual filter) and 4133 (4‑pack).

Key Features

• Part Number: 270528S (individual), 4133 (4‑pack SKU)
• Type of machine suitable for: Briggs & Stratton single‑cylinder petrol engines, typically 7–8 hp, vertical shaft; common on walk‑behind mowers and garden tractors
• Installation tips:
  • Inspect and clean the air filter housing before installation to ensure a proper seal
  • Verify fit by comparing to the existing filter; ensure the foam sits evenly in the housing
  • Install a dry foam element (do not over‑tighten housing) and replace at the recommended service interval
  • Keep a multipack on hand for routine maintenance and fleet replacements

Compatibility

• Briggs & Stratton single‑cylinder petrol engines, typically vertical crankshaft, 7–8 hp
• Walk‑behind lawn mowers, garden tractors, and similar outdoor power equipment
• 270528S (individual filter), 4133 (4‑pack SKU)
• Fitment note: Air filter compatibility depends on the engine model number and housing design; compare the existing filter to confirm correct match before ordering