Suncoast GM 6L45/50/80/90 ZIP KIT SUNSC-6L45-6L90-ZIP

Name: Suncoast GM 6L45/50/80/90 ZIP KIT SUNSC-6L45-6L90-ZIP
Brand: Sun Coast Converters
SKU: S02K SC-6L45-6L90-ZIP
Price: 538.23 USD
Availability: InStock

$538.23

SKU: S02K SC-6L45-6L90-ZIP

In Stock

Ships by Jun 14

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sonnax Zip Kit 6L45-6L90-ZIP addresses critical circuit pressure losses in GM 6L45/50/80/90 valve bodies, correcting common shift problems. This kit features uniquely designed parts to prevent pressure loss in main line, clutch apply control, solenoid feed, and lockup control circuits, and also seals against end plug leakage or poor checkball sealing. No special tools are required for installation, and a quick guide provides clear, easy instructions. A technical booklet is included with general rebuilding tips, technical information, and vacuum testing procedures.

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

Brand	Sun Coast Converters
Part Number	S02K SC-6L45-6L90-ZIP

Videos

6l80 valve body sonnax zip kit install part 2

Sonnax Zip Kits®

6l80 pump machining and sonnax zip kit install part 1

6l80 valve body sonnax zip kit install part 3

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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