Engine Valve Seat - 4 Pack The Enginetech ST15621PM Engine Valve Seat Set is designed to provide a precise fit and reliable performance for a variety of engine applications. Crafted from durable powdered metal, these valve seats effectively eliminate gaps in the valve train, ensuring smooth operation and enhanced engine efficiency. With an outside diameter of approximately 1.57 inches and a seat angle of 45 degrees, these components are engineered for optimal sealing and longevity. Ideal for both professional engine rebuilders and DIY enthusiasts, this 4-pack offers a cost-effective solution for maintaining or restoring engine performance.Enginetech, a family-owned company since 1982, specializes in high-quality engine parts tailored to the needs of engine builders. Their comprehensive product line includes everything from complete engine kits to individual components, supporting a wide range of import and domestic engines. The ST15621PM valve seats are engineered specifically to meet the rigorous demands of engine rebuilding, ensuring a precise fit and durable operation. Backed by nationwide distribution and dedicated customer service, Enginetech parts are trusted by professionals to deliver consistent quality and performance.Whether you're rebuilding an engine or replacing worn components, the Enginetech ST15621PM Valve Seat Set offers a reliable, high-quality option. Its engineered design helps maintain optimal valve sealing, which is critical for engine efficiency and longevity. This set is compatible with various engine types, making it a versatile choice for your next repair project. Trust Enginetech's commitment to quality and performance to keep your engine running smoothly for miles to come.Features:Material: Powdered Metal for durability and reliable performanceOutside Diameter: 1.5670 inches for precise fitSeat Angle: 45 degrees to ensure proper sealingEliminates gaps in valve train, improving engine efficiencyPack of 4 valve seats, ideal for complete valve train restorationtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Features: Material: Powdered Metal Outside Diameter: 1.5670 Seat Angle: 45 Aaiaid Part Number: BBPTST15621PM Part Number: ST15621PM Brand Aaia: BBPT