Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

SUNCOAST The Sure Cure Kit - '18-earlier .420 SC-RFE-420

$674.68

SKU: S02K SC-RFE-420

In Stock
In Stock
Ships by Jun 12
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sonnax Sure Cure kit SC-RFE-420 is a comprehensive reconditioning package that helps rebuilders restore and enhance transmission performance in Chrysler RFE transmissions. It addresses common valve body complaints and other transmission problems by repairing worn areas and protecting against future damage. The kit includes an easy-to-read, step-by-step installation guide covering inspection and repair of critical valve body areas.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSun Coast Converters
Part NumberS02K SC-RFE-420

Videos

How to Raise Chrysler RFE Transmission Line Pressure — No Tuning Required

How to Raise Chrysler RFE Transmission Line Pressure — No Tuning Required
Need a new transmission??? SunCoast 68RFE Transmissions Explained #diesel #cummins #transmissions

Need a new transmission??? SunCoast 68RFE Transmissions Explained #diesel #cummins #transmissions
68rfe Gets Sun coast Torque Converter

68rfe Gets Sun coast Torque Converter
Ultimate 68RFE Transmission Install Guide for 6.7L Dodge Trucks | Step-By-Step Video #howto #dodge

Ultimate 68RFE Transmission Install Guide for 6.7L Dodge Trucks | Step-By-Step Video #howto #dodge

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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