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Win Tools

3747-13 Dodge/Jeep 3.7 4.7 Rocker Arm Remover Similar to Miller 8516A

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0.65 LBS
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  • 3747-13 and 3747-12
  • Rocker arm and valve spring tool attachments included
  • Used to install or replace rocker arms on 3.7 and 4.7 Mopar.



The Win 3747-13 Chrysler Rocker Arm Tool is used in place of the Miller 8516A on Jeep, Dodge, Chrysler 3.7 and 4.7 engines. The original Mopar Miller number was originally 8516, without the "A". The Win brand is similar but stronger than the original! The Miller numbers are listed repair manuals. The 3747-13 (like Miller 8516 or 8516A). It's a specialty tool to remove and install rocker arms safely without damage to the camshaft or camshaft lobes. This rocker arm remover is also used to properly remove of the camshaft, rocker arms and hydraulic lifters (lash adjusters) in 3.7 and 4.7 Liter engines. There's a partial application below, however this tool works on 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 and 2013. Refer to a service manual for detailed instructions on use. Also see the 3-in ONE Win 3747-123 that can be used for Rocker Arms as well as a Valve Spring Compressor. When the repair manual calls for an 8516A, 8387 or 8426 Miller tool, our 3747-123 is the best option. If you already have the 3747-13 the add-on 3747-2 can be purchased separately, which allows the tool to work as the 3-in ONE 3747-123 multi-purpose tool. 

wise-auto-tools-canada.jpg Now shipping to Canada.

  • 2006 (DR, HB, KJ, ND, WK, XK) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2007 (DR, HB, HG, KA, KJ, ND, WK, XK) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2008 (DR, HB, HG, KA, KK, ND, WK, XK) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2009 (DS, HB, HG, KA, KK, ND, WK, XK) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2010 (DS, KA, KK, ND, WK, XK) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2011 (DS, KA, KK, ND) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2012 (DS, KK) - Systems (9 - Engine, 3.7L, 9 - Engine, 4.7L)
  • 2013 (DS) - Systems (9 - Engine, 4.7L)

Question - What's the difference between the Miller 8516A and the Win 3747-13, they look practically the same?

Answer - The Win 3747-13 is very similar to the 8516A. It works in applications when the 8516 is called for. The Win Tool is stronger and works just like the Miller 8516A, at a lower cost. The 3747-123 has more function since it can be used to change broken valve springs or just to install replacement rockers or lifters. That's why many customers choose the Win 3747-123 because it can be used when a 8426, 8387 or 8516A is needed.

Question - Can I just use a "universal" valve spring compressor to do the same thing?

Answer - No. We have searched with all of our suppliers to find a universal type valve spring compressor and there's not one available that works for 3.7 and 4.7 Mopar engines. The best tool for doing rocker arm replacement, valve spring replacement, cam swaps etc is the Win 3747-123 that can be used when a Miller 8426, 8387 or 8516A is called for in a service manual. The Win 3747-123 offers a much lower cost alternative.


Question - Does this rocker arm remover work on Pentastar 3.6 engines?


Answer - No. There is not one made for the 3.6 Pentastar engine. The design does not allow. Shops typically purchase the Pentastar Combo kit, which includes timing chain holders, phaser locks and a crank holder, to save time from disassembling the front of the engine. See the product by clicking the following Pentastar Combo.


Question - Can this be used on a 2003 Dodge Durango 4.7 liter engine? Can be used on the vehicle?

Answer - Yes. It works on 1999 and up Dodge and Jeep 3.7 and 4.7 Liter engines. It is used on the vehicle like shown in the image below.


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2 Reviews

  • 5
    Rocker Arm Combo Tool

    Posted by Leon s on 9th Feb 2017

    Good tool does what it should.

  • 5
    Very easy to use!

    Posted by John on 13th Dec 2016

    I have a 2002 dodge 1500 4.7l. I am doing the head gaskets and the tool was very handy time remove the rocker arms and lifters so I didn't bend any valves. And is designed and made very well.

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