Supertech Valve Spring Retainers for Mazda Protege

CNC machined from aerospace certified titanium alloy, Supertech retainers cut reciprocating mass so the valvetrain stays stable as engine speed climbs.

Steel options are available for applications that call for maximum durability, with aluminum and chromoly offered on select applications. For the Mazda Protege, Supertech offers 2 part numbers, including Titanium Retainers. Parts are available individually or as complete engine sets.

Key Features

• CNC machined aerospace certified titanium alloy
• Reduced valvetrain mass for higher RPM
• Steel options for durability on select applications
• Precision-machined keeper seats
• Designed to pair with Supertech springs and valve locks
• Sold individually or as engine sets

Applications

Supertech retainers are built for the Mazda Protege in street and race valvetrains. Always match the retainer to your spring diameter and keeper angle, and check retainer-to-seal clearance at full lift.