Supertech Exhaust Spring Seat Nissan RB25 OD 28mm ID 19.80mm 3.9mm Thick

This is an exhaust spring seat from Supertech, specifically made for Nissan RB25 engines. It works with the exhaust valve spring to ensure proper seating and support during engine operation. This part is crucial for maintaining the correct tension and alignment of the exhaust valve spring, which directly impacts valve train performance and engine health.

The spring seat is constructed with durability in mind, featuring a 28mm outer diameter and a 19.80mm inner diameter, with a thickness of 3.9mm. These dimensions are designed to precisely match the specifications required for the RB25 engine's exhaust valve springs, ensuring a solid foundation and preventing premature wear or failure. Proper installation of these seats is key to achieving reliable valve train function, especially in engines that see regular use or performance modifications.