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Sun Coast Converters

Suncoast Converters Accumulator Valve Train Kit - M Version Valve Trains 77777M-K

$136.52

SKU: S02K 77777M-K

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sonnax 77777M-K is an accumulator valve train kit designed for GM 200-4R, 4L60, and 4L60-E transmissions. This kit features a .341" valve diameter and is intended for use in heavy-weight vehicles.

It is specifically designed to fit "M" version valve trains and, in 4L60 transmissions, requires '87-later auxiliary valve body styles. The kit can help eliminate oil loss and improve shift feel.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K 77777M-K

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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