Description: 4L80-E, 4L85-EBoost Valve KitPart No. 34200-01KO-Ring style. Kit can be retrofit to back to '89 units. See instructions for details.Common problems in vehicles with GM 4L80-E and 4L85-E transmissions are uncontrollable line rise (upward of 500-600 psi), high line pressure in Reverse, buzzing noise, broken direct clutch drums and/or broken cases. These problems are usually caused by reverse boost oil that enters the torque signal circuit due to a wear-created cross leak at the sleeve. High line pressure and buzz is created by oil leakage past the aluminum balance plug. The Sonnax boost valve kit 34200-01K eliminates these problems.Hardened steel boost valve has over 20% wider spools to provide better durability and increased sealing contact areaBoost valve spools have annular grooves to reduce side loading that causes wearQuality steel boost sleeve with external O-rings provides positive seal to compensate for pump cover bore wearKit includes a replacement aluminum balance oil plug with an O-ring to ensure proper sealing and adequate back pressure on the pressure regulator valveContentsValveSleeveSleeve O-Rings (2)Balance PlugBalance Plug O-Ring A NAME YOU CAN TRUSTAs 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 InformationShippingReturnsCore PolicyImportant InformationShippingReturnsCore 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 items4L80-E, 4L85-E Boost Valve Kit Part No. 34200-01K O-Ring style. Kit can be retrofit to back to '89 units. See instructions for details. Common problems in vehicles with GM 4L80-E and 4L85-E transmissions are uncontrollable line rise (upward of 500-600 psi), high line pressure in Reverse, buzzing noise, broken direct clutch drums and/or broken cases. These problems are usually caused by reverse boost oil that enters the torque signal circuit due to a wear-created cross leak at the sleeve. High line pressure and buzz is created by oil leakage past the aluminum balance plug. The Sonnax boost valve kit 34200-01K eliminates these problems. Hardened steel boost valve has over 20% wider spools to provide better durability and increased sealing contact area Boost valve spools have annular grooves to reduce side loading that causes wear Quality steel boost sleeve with external O-rings provides positive seal to compensate for pump cover bore wear Kit includes a replacement aluminum balance oil plug with an O-ring to ensure proper sealing and adequate back pressure on the pressure regulator valve Contents ---Valve ---Sleeve ---Sleeve O-Rings (2) ---Balance Plug ---Balance Plug O-Ring 4L80-E, 4L85-EBoost Valve KitPart No. 34200-01KO-Ring style. Kit can be retrofit to back to '89 units. See instructions for details.Common problems in vehicles with GM 4L80-E and 4L85-E transmissions are uncontrollable line rise (upward of 500-600 psi), high line pressure in Reverse, buzzing noise, broken direct clutch drums and/or broken cases. These problems are usually caused by reverse boost oil that enters the torque signal circuit due to a wear-created cross leak at the sleeve. High line pressure and buzz is created by oil leakage past the aluminum balance plug. The Sonnax boost valve kit 34200-01K eliminates these problems.Hardened steel boost valve has over 20% wider spools to provide better durability and increased sealing contact areaBoost valve spools have annular grooves to reduce side loading that causes wearQuality steel boost sleeve with external O-rings provides positive seal to compensate for pump cover bore wearKit includes a replacement aluminum balance oil plug with an O-ring to ensure proper sealing and adequate back pressure on the pressure regulator valveContentsValveSleeveSleeve O-Rings (2)Balance PlugBalance Plug O-Ring A NAME YOU CAN TRUSTAs 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 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. Shipping 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. Returns 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 Core Policy 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 4L80-E, 4L85-EBoost Valve KitPart No. 34200-01KO-Ring style. Kit can be retrofit to back to '89 units. See instructions for details.Common problems in vehicles with GM 4L80-E and 4L85-E transmissions are uncontrollable line rise (upward of 500-600 psi), high line pressure in Reverse, buzzing noise, broken direct clutch drums and/or broken cases. These problems are usually caused by reverse boost oil that enters the torque signal circuit due to a wear-created cross leak at the sleeve. High line pressure and buzz is created by oil leakage past the aluminum balance plug. The Sonnax boost valve kit 34200-01K eliminates these problems.Hardened steel boost valve has over 20% wider spools to provide better durability and increased sealing contact areaBoost valve spools have annular grooves to reduce side loading that causes wearQuality steel boost sleeve with external O-rings provides positive seal to compensate for pump cover bore wearKit includes a replacement aluminum balance oil plug with an O-ring to ensure proper sealing and adequate back pressure on the pressure regulator valveContentsValveSleeveSleeve O-Rings (2)Balance PlugBalance Plug O-Ring
Price: 22.37 USD
Location: Shepherdsville, Kentucky
End Time: 2024-09-16T16:13:50.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: Sonnax
Type: Boost Valve Kit
Manufacturer Warranty: Yes
OE/OEM Part Number: 34200-01K
Fitment Type: Direct Replacement
Items Included: O-Ring style
Manufacturer Part Number: 34200-01K
Country/Region of Manufacture: United States