Sonnax® Main Pressure Regulator Spring (Elevated Pressure)

 RE4R01A RL4R01A R4A-EL

Nissan Infiniti Mazda 1995-2004

The OE springs in many Jatco transmissions wear or become fatigued, causing low baseline pressure. OE replacements are hard to find, and many aftermarket springs have unacceptably high spring rates. The Sonnax® elevated pressure main pressure regulator springs are intended to provide a minimal baseline pressure increase (approximately 10 psi over OE baseline pressure), enough of an increase to help restore full line pressure. The springs may be used to replace worn OE springs and also to correct low line pressure caused by worn transmissions.

Highest quality spring material.

Designed to slightly exceed OEM spring rates.

Manufactured to tight tolerances.

Drop-in installation requires no modification.

Symptoms:

High line pressure

Low base line pressure

Cause:

Worn, tired OE pressure regulator springs or aftermarket springs with higher spring ratings.

Correction:

The Sonnax® elevated pressure main pressure regulator springs are designed to provide an effective baseline pressure. The slight increase in spring pressure compensates for wear elsewhere in the transmission.

Sold As Quantity 20 Per Package