OE Pressure Regulator Spring and Piston Kit

This all-new and EMPI Exclusive kit includes Made in the USA long and short springs wound to original tension specifications and standard bore pistons.

When building a new engine with fresh tolerances, best practice is to use OEM spring pressure versus heavy duty springs and booster pistons for correct oil pressure management.

Kit includes:

• Two oil pressure relief pistons
• Two oil relief plugs
• Two oil relief plug gaskets
• One long oil relief spring
• One short oil relief spring

OE Reference #s:

• Oil Pressure Relief Piston (113 115 411B)
• Short Oil Relief Spring (111 115 425A)
• Long Oil Relief Spring (111 115 421A)
• Oil Spring Screw (043 115 431)
• M18 Crush Washer (N 0138174)