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The BRIGGS STRATTON 84012308 is a valve retainer designed for use in small gasoline engines manufactured by Briggs and Stratton. The valve retainer secures the valve spring in place within the engine's valve train, maintaining proper spring tension and ensuring consistent valve operation during engine cycles. This component is an OEM-specification replacement part suited for installation by small engine mechanics and qualified service technicians performing valve train service or top-end engine rebuilds.
The 84012308 valve retainer is used in Briggs and Stratton small engines found in lawn and garden equipment, including walk-behind mowers, riding tractors, and other power equipment. It is typically replaced during valve spring service, valve seal replacement, or when the retainer shows signs of wear, cracking, or deformation that could compromise valve train integrity.
Designed as an OEM-style replacement valve retainer for Briggs and Stratton small engines used in lawn and garden power equipment applications.
Installation is performed by a qualified small engine technician. Disconnect the spark plug wire and ensure the engine is completely cool before beginning valve train service. A valve spring compressor tool is required to safely compress the spring and seat or remove the retainer without damaging surrounding components. Follow applicable engine service manual procedures and torque specifications provided by Briggs and Stratton for reassembly.
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