4L60E 4L60 4L65E 4L70E PINLESS ACCUMULATOR PISTON KIT SONNAX 77998-03K

img{max-width:100%}Pinless Accumulator PISTON KIT for 200R4 4L60 4L60E 4L65E 4L70E GMKit Includes:Pinless Accumulator PistonViton D RingPTFE Seal2 Steel BallsTechnical InstructionsDescription:In GM 4L60E, 4L65E and 4L70E units it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. This kit prevents these conditions in the 1-2 or 3-4 accumulator bores.Pinless design eliminates the possibility of pin bore leakage and the additional length stabilizes the piston to prevent piston cocking.Dual seals stabilize and completely seal the bore and provide a tight seal even after thousands of cycles.Steel balls plug existing pin bore in case or cover.This transmission requires 2 of these pistons. This listing is for one item. Applications4L60EHummer (H3) (H3T) 2006-2010 V8 5.3LBuick Rainer 2004-2007 L6 4.2L V8 5.3LRoadmaster, Wagon 1994-1996 V8 5.7LCadillac Escalade, ESV, EXT 1999-2007 V8 5.3L 5.7L 6.0LFleetwood, Brougham 1993-1-996 V8 4.9L 5.7LLimo 1993-1996 V8 4.9L 5.7LChevrolet Astro Van, GMC Safari 1995-2007 V6 4.3LAvalanche 2001-2009 V8 5.3LBlazer, Jimmy 1993-2007 V6 4.3L V8 5.3LEnvoy, Trailblazer 1993-2009 L4 2.2L L6 4.2L V6 4.3L V8 5.3LCamaro 1994-2002 V8 5.7LCaprice, Wagon 1993-1996 V6 4.3L V8 5.0L 5.7LColorado, Canyon 2004-2011 L4 2.8L L5 3.5L L4 2.9L L5 3.7L V8 5.3LExpress, Savana 1996-2011 V6 4.3L V8 4.8L 5.3L 5.7LImpala 1994-1999 V8 5.7LS10, S15, Jimmy, Sonoma 1993-2004 L4 2.2L 2.5L V6 4.3LSilverado, Sierra 1500-3500 1995-2010 V6 4.2L V6 4.3L V8 4.8L 5.0L 5.3L V6 5.4L 5.7L 6.0LSuburban 1500-2500 1993-2008 V8 4.8L 5.L 5.3L 5.7LTahoe, Yukon 1993-2009 V8 4.8L 5.0L 5.3L 5.7LIsuzu Ascender 2003-2009 L6 4.2L V8 5.3L 5.4LHombre 1997-2000 L4 2.2L V6 4.3Li280 2006 L4 2.8Li290 2007 L4 2.9Li350 2006 L5 3.5Li370 2007-2009 L5 3.5LOldsmobile Bravada 1993-2004 L6 4.2L V6 4.3LPontiac Firebird 1994-2002 V6 3.4L 3.8L V8 5.7LGTO 2004 V8 5.7LSAAB 9-7, 9-7X 2005-2009 L6 4.2L V8 5.3L 4L65EHummer (H2)(H2 SUT) 2004-2007 V8 6.0L 4SPD RWD 4X4Buick Rainer 2004-2007 L6 4.2L V8 5.3L 4SPD RWD AWDChevrolet Express, GMC Savana 1996-2011 V8 4.8L 5.3L 5.7L 4SPD RWD 4X4Blazer, Jimmy 1992-2007 V6 4.3L V8 5.3L 4SPD RWD 4X4Envoy, Trailblazer 1992-2009 V6 4.3L V8 5.3L 4SPD RWD 4X4SSR 2003-2007 L6 4.2L V8 5.3L 6.0L 4SPD RWD Parts ship daily from our distribution center.FREE SHIPPING on US Orders GOT QUESTIONS on your specific Year/Make/Model? Send us a message ¿Habla español? Escríbanos con el año, la marca, y el modelo de su vehículo. Visit our eBay Store: Phoenix Transmission PartsFor all of your Automatic Transmission Part needsCheck out my other items!Be sure to add me to your favorites list!Thank you for visiting our EBay store. Customer satisfaction is our number one priority. Please contact us with any problems or concerns. Give us a chance to resolve any issue before leaving less than a 5 STAR feedback.The vehicle compatibility tool is to be used as a guideline only. It is not complete nor perfect.We stock thousands of automatic transmission parts in our state of the art warehouse and build our own torque converters; stock, custom, stall, racing, and super heavy duty.