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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.

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Sonnax

4L80E Transmission Line Pressure Boost Valve Kit Sonnax 4L80E-LB1

Regular price $37.36 USD
Regular price Sale price $37.36 USD
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img{max-width:100%}4L80E Sonnax Line Pressure Booster KitFeaturesLarge Ratio Boost AssemblyPressure Regulator SpringO-rings - 2Installation InstructionsDescription: Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving conditions become more demanding. The pressure regulator springs are approximately 10% stronger than oe and more conservative in impact than other aftermarket kit springs. Large ratio boost valves provide higher pressure incrementally and when it is needed the most. The combination of these springs and valves in a Sonnax kit gives you the best of both worlds: a modest pressure increase at the low end, with a high end pressure that is equal to or greater than that of other aftermarket kit springs.Achieve shorter shifts and increased torque capacity without creating low speed harshnessImproved band and clutch holding capacity for increased durabilityProgressive pressure increase as driving conditions become more demandingAll the benefits of increased line pressure without overloading the pump at idleSimple and affordable drop in solution with no special tools or reaming requiredAPPLICATIONS Hummer H1 1993-2005 V8 Gas 6.5L Diesel 4 Spd RWD 4X4Escalade, ESV, EXT 2006-2007 V8 4.8L 5.3L 4 Spd RWD AWDAvalanche 2001-2003 V8 8.1L 4 Spd RWD 4X4Express, Savana, 2500-3500 1996-2009 V8 4.8L 5.3L 5.7L 4 Spd RWD 4X4Express, Savana, 2500-3500 1996-2009 V8 6.0L 7.4L 4 Spd RWD 4X4Express, Savana, 2500-3500 2006-2010 V8 6.6L Diesel 4 Spd RWD 4X4Express, Savana, 3500 2002 V8 8.1L 4 Spd RWD 4X4Silverado,Sierra,1500-3500 1995-2007 V8 5.0L 5.7L 6.0L 6.5L 4 Spd RWD 4X4Silverado,Sierra,1500-3500 1995-2007 V8 6.6L Diesel 4 Spd RWD 4X4Suburban 1500-2500 1995-2007 V8 5.7L 6.0L 4 Spd RWD 4X4Suburban 1500-2500 1995-2007 V8 6.5L Diesel 4 Spd RWD 4X4Tahoe, Yukon 1995-2007 V8 5.7L 6.0L 4 Spd RWD 4x4Tahoe, Yukon 1995-2007 V8 6.5L Diesel 4 Spd RWD 4X4NPR Truck 1991-2004 V8 5.7L 4 Spd RWDNPR Truck 2005-2010 V8 6.0L Gas 4 Spd RWDXJS 1993-1996 L6 4.0L; V12 6.0L 4 Spd RWD ¬†¬† Please be sure your Pan has 17 Bolt Holes for your Transmission to be a 4L80E ¬†Parts ship daily from our distribution center.FREE SHIPPING on US OrdersIn a Hurry - expedited shipping is available for this item GOT QUESTIONS on your specific Year/Make/Model? Send us a message √ā¬ŅHabla espa√ɬĪol? Escr√ɬ≠banos con el a√ɬĪo, la marca, y el modelo de su veh√ɬ≠culo. 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 failures;for example valve body failures, internal wear or damaged hard parts Visit our eBay Store: Phoenix Transmission Parts ¬†For all of your Automatic Transmission Part needsCheck out my other items!Be sure to add me to your favorites list!¬†