Briggs Stratton 845589 Valve Spring

Product Description

The BRIGGS STRATTON 845589 is a valve spring designed for use in small gasoline engines common to outdoor power equipment. Valve springs maintain consistent pressure on intake and exhaust valves, ensuring proper seating and timing throughout the engine cycle. A worn or broken valve spring can cause loss of compression, rough running, or failure to start. This is an OEM-specification replacement part intended for installation by small engine technicians or qualified service professionals.

The 845589 valve spring is used in Briggs Stratton small engines found in lawn and garden power equipment. Typical applications include walk-behind mowers, riding mowers, and similar outdoor power units equipped with compatible Briggs Stratton engine assemblies. This part is suited for scheduled maintenance intervals or failure-driven repair work where valve train components require replacement.

Key Features

• OEM replacement valve spring for Briggs Stratton small engines
• Maintains proper valve seating pressure for consistent compression
• Direct fit for applicable engine assemblies — no modification required
• Suitable for both intake and exhaust valve applications where specified by the engine service manual

Compatibility

Designed as an OEM-style replacement valve spring for compatible Briggs Stratton small engines used in lawn and garden power equipment. Consult the Briggs Stratton engine model and type numbers to confirm fitment before installation.

Installation Notes

Valve spring replacement should be performed by a qualified small engine technician. Disconnect the spark plug wire and allow the engine to cool completely before beginning any valve train service. A valve spring compressor tool is typically required to safely remove and reinstall the spring without damaging the valve stem or keeper. Refer to the applicable Briggs Stratton engine service manual for disassembly sequence and torque specifications on related fasteners.

Technical Specifications

• Part Type: Valve Spring

Standard Information

• Brand: BRIGGS STRATTON
• Manufacturer Part Number: 845589