Exterior Components› Body Panels and Components

Sun Coast Converters

Suncoast Converters Pressure Regulator Valve Kit 34910-03K

$89.88

SKU: S02K 34910-03K

In Stock
In Stock
Ships by Jun 15
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sonnax Transmission Company Lube Regulated Pressure Regulator Valves are designed to address common issues in GM TH400 and TH425 automatic transmissions. These valves prevent overheating caused by inadequate cooler flow at low RPM and high-pressure conditions. They also eliminate engine surge issues in 1999 and later GM 4L80-E and 4L85-E units that result from high idle EPC pressure.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K 34910-03K

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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