Remember, transmissions have variations based on year, make, model and engine size, as well as for 2WD, AWD, 4x4, gas, diesel or hybrid and in some situations half years. We encourage you to chat or call toll free with one of our knowledgeable staff members that will assist you in finding the correct part the first time and answer any questions you may have regarding parts for your build. Our goal simply put, is to get you moving with one order.
5L40E 5L50E A5S390R A5S360R Transmission Boost Valve Kit Sonnax 55209-01KWith Spacer, Large Ratio
Vehicles with a 5L40-E transmission are prone to poor line rise or high reverse pressure problems causing poor shift quality and clutch failure due to leakage at the boost valve assembly. Sonnax offers two replacement boost assemblies: the 55209-01K with large ratio (higher line rise and firmer shifts) and the OE ratio 55209-04K for factory performance.Boost valves are hard-coat anodized to eliminate wear on the inside diameter of the sleeves.Boost sleeves are made from alloy aluminum specifically designed to resist wear.Increased performance 55209-01K or OE ratio 55209-04K assemblies are available.Kit salvages costly 5L40-E pumps.ContentsValveSleeveSpacerSpecsDia.: 0.531"Dia.: 0.432"Parts ship daily from
our distribution center.FREE SHIPPING on US Orders
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modelo de su vehÃculo.
This item is packaged
for Wholesale Distribution WARRANTY requests need to be
accompanied with the appropriate codeas diagnosed by a
professional transmission shop.Vehicles must be
professionally diagnosed for solenoid failure prior to purchase.We cannot guarantee any
one item will fix all transmission problems.Solenoid failure is often
accompanied by additional failuresfor example valve body
failures, internal wear or damaged hard parts.
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