Exterior Components› Body Panels and Components

Sun Coast Converters

SUNCOAST Sonnax Priming Valve Seal Kit 35740-37K

$65.62

SKU: S02K 35740-37K

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Sun Coast Converters 35740-37K is a priming valve and seal kit designed for specific Chrysler and ZF transmissions. This kit addresses issues related to variable force solenoids, which control clutch apply/release, torque converter clutch apply/release, and line pressure. It ensures proper flow and pressure to solenoids, critical during hot conditions and low pressure, preventing delayed engagement or wrong gear starts. The kit also limits excessive solenoid feed pressure that can cause gear ratio codes and harsh shifts.

The kit includes a hardcoat anodized valve to combat wear, a scarf-cut seal that expands to prevent leakage past wear on the valve spool, and an o-ringed end plug to seal the oil circuit. The drop-in Zip Valve design allows for quick and easy installation. Symptoms that this kit can help resolve include harsh shifts, neutral shifts, gear loss, delayed engagement, wrong gear starts, flare shifts, and gear ratio/solenoid codes.
Show original supplier description
SUNCOAST Sonnax Priming Valve Seal Kit 35740-37K

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K 35740-37K
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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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