Sonnax TCC Zip Kit 8L45-8L90-TCC-ZIP targets the root cause of multiple converter-related complaints by sealing the critical circuit pressure losses in the GM 8L45 and 8L90 valve body. The kit contains uniquely designed parts to prevent the loss of pressures within the lube, converter limit, line pressure and converter apply circuits. These solutions target wear that results in lube-, cooler- and converter-related complaints. No special tools are required for installing these parts.
The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road fast. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing information and locations at other key areas of the valve body.
Drop-in Zip Valve™ parts install quickly and easily, no reaming or special tools required
Uniquely designed parts address root causes of converter and lube related complaints by sealing critical pressure circuits
Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair
Contents
  • O-Ringed End Plug Kit
  • Converter Feed Limit Valve Kit
  • Pressure Regulator & Shuttle Valve Kit
  • TCC Clutch Control Valve, Seal & Spring

A NAME YOU CAN TRUST

As an industry veteran in the transmission parts supply business, you can buy with confidence.  Our goal is to provide high quality parts, an experienced sales force, and the highest levels of product availability possible.

Important Information
Shipping
Returns
Core Policy

As a buyer, it is your responsibility to verify that this product is compatible with your application.  For any general questions, technical support, or to verify part fitment please send us a message. Our support is free, and we typically respond within minutes. ​​​​​​​

Your order will be shipped within 1 business days (MON-FRI excluding holidays) of receiving payment and you should expect to receive it five to seven days via US Postal Service or UPS Ground Standard Shipping unless another shipping method is chosen.  In addition to UPS Ground, we offer expedited services as well as local pick-up. Please contact us if a quote is needed and we will be happy to work with you.


Please Note: All packages valued at over $500 WILL require a signature upon delivery. 


If your package arrives damaged, please do not open and contact us immediately. 


If your package is returned by the carrier due to address errors, you will be responsible for the shipping cost. 


International Customers:

Please make sure you monitor your package. Any import duty/taxes must be paid by the buyer. If you do not pay in a timely fashion your package will be returned. You will not receive a refund for the returned items until they’re delivered. Shipping fees will not be reimbursed. ​​​​​​​

30 Day return policy for unused, uninstalled items. Any product you return must be in the same condition you received it and in the original packaging.


If you’re having an issue with a used or remanufactured item and it’s been installed, we require the buyer to contact us immediately so we can provide trouble shooting information. Worst case scenario if that fails, exchange only.


Certain item such as used items, tools, and one time use items are not eligible for return.  As a buyer, it is your responsibility to verify that this product is compatible with your application.​​​​​​​  If you ordered the wrong item for your application YOU are responsible for the return shipping. 


20% Restocking Fee May Apply


If you are purchasing an item in which a core charge is required, please be sure your contact information is current.  If core charge is not paid within 1 week of purchase, your order will be cancelled.


Upon receiving your new part, there will be a prepaid shipping label included so you can return your core (old part) to us free of charge. Please make sure to use the label we send you.


You have 14 days to ship your core back to us from the time your new part was delivered. If you do not ship the core within 14 days, you WILL LOSE YOUR REFUNDABLE CORE CHARGE. Exceptions are possible, BUT YOU MUST contact us to make us aware of the situation.


ATTENTION INTERNATIONAL BUYERS: Due to the inflation of shipping costs, we are unable to pay for the return shipping on the core. If you want the core charge refunded, you will have to pay for shipping. We apologize for any inconvenience this may cause.


Once your core is delivered, please allow 3-5 business days for your refund to be processed.


See our other items

Sonnax TCC Zip Kit 8L45-8L90-TCC-ZIP targets the root cause of multiple converter-related complaints by sealing the critical circuit pressure losses in the GM 8L45 and 8L90 valve body. The kit contains uniquely designed parts to prevent the loss of pressures within the lube, converter limit, line pressure and converter apply circuits. These solutions target wear that results in lube-, cooler- and converter-related complaints. No special tools are required for installing these parts. The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road fast. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing information and locations at other key areas of the valve body. Drop-in Zip Valve™ parts install quickly and easily, no reaming or special tools required Uniquely designed parts address root causes of converter and lube related complaints by sealing critical pressure circuits Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair Contents ---O-Ringed End Plug Kit ---Converter Feed Limit Valve Kit ---Pressure Regulator & Shuttle Valve Kit ---TCC Clutch Control Valve, Seal & Spring
Sonnax TCC Zip Kit 8L45-8L90-TCC-ZIP targets the root cause of multiple converter-related complaints by sealing the critical circuit pressure losses in the GM 8L45 and 8L90 valve body. The kit contains uniquely designed parts to prevent the loss of pressures within the lube, converter limit, line pressure and converter apply circuits. These solutions target wear that results in lube-, cooler- and converter-related complaints. No special tools are required for installing these parts.
The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road fast. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing information and locations at other key areas of the valve body.
Drop-in Zip Valve™ parts install quickly and easily, no reaming or special tools required
Uniquely designed parts address root causes of converter and lube related complaints by sealing critical pressure circuits
Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair
Contents
  • O-Ringed End Plug Kit
  • Converter Feed Limit Valve Kit
  • Pressure Regulator & Shuttle Valve Kit
  • TCC Clutch Control Valve, Seal & Spring

A NAME YOU CAN TRUST

As an industry veteran in the transmission parts supply business, you can buy with confidence.  Our goal is to provide high quality parts, an experienced sales force, and the highest levels of product availability possible.

As a buyer, it is your responsibility to verify that this product is compatible with your application.  For any general questions, technical support, or to verify part fitment please send us a message. Our support is free, and we typically respond within minutes. ​​​​​​​

Your order will be shipped within 1 business days (MON-FRI excluding holidays) of receiving payment and you should expect to receive it five to seven days via US Postal Service or UPS Ground Standard Shipping unless another shipping method is chosen.  In addition to UPS Ground, we offer expedited services as well as local pick-up. Please contact us if a quote is needed and we will be happy to work with you.


Please Note: All packages valued at over $500 WILL require a signature upon delivery. 


If your package arrives damaged, please do not open and contact us immediately. 


If your package is returned by the carrier due to address errors, you will be responsible for the shipping cost. 


International Customers:

Please make sure you monitor your package. Any import duty/taxes must be paid by the buyer. If you do not pay in a timely fashion your package will be returned. You will not receive a refund for the returned items until they’re delivered. Shipping fees will not be reimbursed. ​​​​​​​

30 Day return policy for unused, uninstalled items. Any product you return must be in the same condition you received it and in the original packaging.


If you’re having an issue with a used or remanufactured item and it’s been installed, we require the buyer to contact us immediately so we can provide trouble shooting information. Worst case scenario if that fails, exchange only.


Certain item such as used items, tools, and one time use items are not eligible for return.  As a buyer, it is your responsibility to verify that this product is compatible with your application.​​​​​​​  If you ordered the wrong item for your application YOU are responsible for the return shipping. 


20% Restocking Fee May Apply


If you are purchasing an item in which a core charge is required, please be sure your contact information is current.  If core charge is not paid within 1 week of purchase, your order will be cancelled.


Upon receiving your new part, there will be a prepaid shipping label included so you can return your core (old part) to us free of charge. Please make sure to use the label we send you.


You have 14 days to ship your core back to us from the time your new part was delivered. If you do not ship the core within 14 days, you WILL LOSE YOUR REFUNDABLE CORE CHARGE. Exceptions are possible, BUT YOU MUST contact us to make us aware of the situation.


ATTENTION INTERNATIONAL BUYERS: Due to the inflation of shipping costs, we are unable to pay for the return shipping on the core. If you want the core charge refunded, you will have to pay for shipping. We apologize for any inconvenience this may cause.


Once your core is delivered, please allow 3-5 business days for your refund to be processed.


See our other items