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Find Transmission & Transfer Case for your Sierra 3500

PPE Heavy Duty Cast Aluminum PTO Side Plate Covers; Raw (01-16 6.6L Duramax Sierra 3500 HD)Find parts that fit my vehicle

Item SHG49368
Sierra 3500 Sales Tech

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$71.99

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      Product Information

      Description, Q&A

      Description

      Features:
      High-grade A356.0-T6 heat-treated cast aluminum alloy
      Ridged design keeps gasket evenly torqued so it does not slip
      Increases transmission case rigidity
      Helps reduce operating temperatures
      2001-2016 Kit - comes complete with 2 gaskets and twelve M10 x 1.5 x 30mm bolts
      2017-2019 Kit - comes complete with 1 gasket and six M10 x 1.5 x 30mm bolts
      Internal heat sinks and external ribs add strength and reduce fluid temperatures

      2001-2016 Kit - comes with 2 covers, 12 bolts, and 2 cover gaskets
      Made from cast aluminum, these covers add strength to center of the transmission case eliminating trans oil seepage at the mating surface.
      Cooling fins double the surface area (60.74 sq. in.) when compared to stock (30.62 sq. in.), which increases heat dissipation from the transmission fluid.

      Fitment:

      Details

      PPE 128060000

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.9

      Reviews of PPE Drivetrain Products (117)

      Brand Image

      Reviews of PPE Drivetrain products have an average rating of 4.9 out of 5

      Mar 17, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (14-18 Silverado 1500 w/ 6L80 Transmission)

      5
      2017 LT -

      Great

      Really helped my transmission temperature. Especially when pulling a trailer

      Mar 13, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (14-18 Silverado 1500 w/ 6L80 Transmission)

      5
      2018 LT - Farmboy73

      Works as advertised

      Transmission went from over 190 degrees in the summer to150 degrees most of the time and 165 degrees once on a 100 degree day.

      Mar 13, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (15-18 Silverado 1500 w/ 8L90 Transmission)

      5
      2017 -

      Bypass

      Easy to install, fast delivery, thank you very much!

      Mar 12, 2025

      Review shared from PPE Heavy-Duty Deep Cast Aluminum Transmission Pan; Brushed (19-25 Silverado 1500 w/ 10L80 Transmission, Excluding Duramax)

      5
      2023 RST -

      Great upgrade.

      Love it. Easy to install. Trans temps a little lower. Love that it has extra capacity

      Mar 12, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (14-18 Silverado 1500 w/ 6L80 Transmission)

      5
      2015 LT -

      Simple to install and temps are down

      This is a well made product that anyone can install with ease. My 2015 Silverado transmissions temps went from 190-200 to 150-160. I have had no issues 100% recommend for anyone if your worried about temperatures and want to prolong the life of your transmission.

      Mar 11, 2025

      Review shared from PPE Heavy-Duty Cast Aluminum Deep Transmission Pan; Black (17-20 F-150 w/ 10R80 Transmission)

      5
      2018 - ErikH

      2018 F150 pan replacement

      Great product, took it to the dealer to get it installed, it uses the OEM pan bolts, just get a replacement gasket, it was done in 4 hours.

      Mar 4, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (14-18 Sierra 1500 w/ 6L80 Transmission)

      5
      2017 SLT -

      Cool Runnings

      If you have a GMC vehicle, you need this cooler. Works as advertised, temps have not gotten above 137°. It's winter right now so we'll see how the temps run in the summer.

      Mar 4, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (14-18 Silverado 1500 w/ 6L80 Transmission)

      5
      2017 -

      Fantastic

      Since installation transmission temp went from 190 degrees down to a constant 145/150

      Mar 4, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (14-18 Sierra 1500 w/ 6L80 Transmission)

      5
      2018 LT -

      world difference

      My chevy is normally running at 198 - 200 in transmission temperature after this i been off-roading racing etc. Transmisión temperature goes as high as 170 max. Love it i recommended to everyone because chevy engine normally runs very hot and that will make your transmission go bad quickly

      Mar 3, 2025

      Review shared from PPE Transmission Fluid Thermal Bypass Valve (15-18 Silverado 1500 w/ 8L90 Transmission)

      5
      2017 -

      Fit great

      Took 10 mins tops to install very easy not hard dare I say plug and play

      Questions & Answers

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      Will It Fit My Sierra 3500

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