Key Features

• Genuine OEM Briggs & Stratton Diaphragm — 272538S, manufactured to Briggs & Stratton’s original specifications for precise fit and dependable performance.
• Responsive fuel control — flexes with engine vacuum changes to maintain stable fuel delivery across idle, mid-range and high-load operating conditions.
• Durable construction — designed to withstand repeated movement, contact with fuel, heat and engine vibration for long-term reliability.
• Straightforward installation — designed for easy replacement during routine carburettor maintenance or rebuilds, minimizing downtime.
• Supports accurate metering and smoother throttle response, contributing to consistent engine performance.

Product Details

• Product Type: Carburettor Fuel Pump Diaphragm
• Part Reference: 272538S
• OEM Status: Genuine Briggs & Stratton component
• Application: Regulates fuel flow by responding to carburettor vacuum changes
• Benefits: Maintains correct fuel delivery under varying engine loads and throttle positions, supporting smoother running and dependable performance

Compatibility

• Specifically specified for use with selected Briggs & Stratton petrol engines requiring this diaphragm as part of the fuel pump system.
• Typical fitment includes Briggs & Stratton small to medium petrol engines used in lawn mowers, tillers, cultivators, pressure washers, generators and other outdoor power equipment that rely on this diaphragm.
• Fitment tip: Diaphragm compatibility depends on your engine model and carburettor design — verify by comparing with your existing diaphragm or checking the engine model/tag before ordering.