Drivetrain› Automatic Transmissions and Components

Sonnax

Valve Body Zip Kit

$273.08

SKU: U140E-ZIP

In Stock
In Stock
Ships by Sep 12
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$100 Minimum Order
30 Days Return
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Overview

The Sonnax U140E-ZIP is a valve body Zip Kit designed for automatic transmissions. It aims to recover hydraulic control and restore normal shift operation by sealing critical circuit pressure losses. The kit includes components to prevent pressure loss in main line, clutch apply control, and lockup control circuits, as well as addressing end plug leakage and checkball sealing issues. Drop-in parts require no reaming or special tools for installation.
Show original supplier description
The Sonnax Zip Kit, part number U140E-ZIP, is engineered to address common issues within Toyota/Lexus U140E/F, U240E, and U241E valve bodies. This kit specifically targets and seals critical circuit pressure losses that can lead to performance degradation and abnormal shifting. Furthermore, the kit addresses common problems such as end plug leakage and sealing issues with checkballs across multiple circuits. Sonnax emphasizes that the drop-in Zip Valve™ parts require no reaming or specialized tools, facilitating a straightforward repair process. The Sonnax U140E-ZIP kit includes a variety of specific components: a Lockup Control Plunger Valve Kit, an O-Ringed End Plug Kit, two Accumulator Piston Kits, eleven Plastic Checkballs, a Boost Valve Kit, and a Clutch Apply Control Plunger Valve Kit. Installation is aided by a quick guide providing clear instructions, along with a technical booklet offering in-depth information, testing procedures, and repair options suitable for higher mileage units. This kit is compatible with the following transmissions: U140F (1998-UP), U140E (U140) (1998-UP), U240E (AW91-40LS, U240) (2000-UP), and U241E (U241) (2000-UP). It is intended for maintaining and repairing automatic transmissions and does not offer universal fitment or performance enhancement.

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

BrandSonnax
Part NumberU140E-ZIP
CategoryDrivetrain

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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.

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