Miller Automotive specialty tool used to remove and replace broken valve springs on 4.7 Dodge V-8 engines used in Ram, Dakota and Durango...
Also see 8426. Miller Special Tools (SPX division) MLR 8387 B is a special valve spring compressor used with a 3/8" breaker bar or ratchet to remove and replace broken valve springs on some 3.7 and 4.7L engines in Dodge and Jeep vehicles. Below is a partial application list. The Miller 8426 valve spring tool is for some other 3.7 and 4.7's not listed below. The Miller 8426 and 8387 are very similar but work with different size valves.It's always best to check a service manual to verify which tool number is recommended.
For removing or installing the rocker arm or changing lifter see the 8516A
2002-2009 Dodge Ram 2002-2009 3.7 and 4.7 Engine Size
2006 Dodge Durango 3.7, 4.7 *Note some 06 Durango's use the 8516
2002-2007 Jeep Liberty 3.7 Engine Size
2005-2011 Dodge Dakota 3.7, 4.7
Nitro 3.7, Body Code HB - Dodge Durango 2004-2009, Body Code KK - Jeep Liberty 2002-2013, (9 - Engine - 3.7L, 9 - Engine - 4.7L)
2007 (DR, KA, KJ) - System (9 - Engine - 3.7L)
2008 (DR, KA, KK) - System (9 - Engine - 3.7L)
2009 (DS, KA, KK) - System (9 - Engine - 3.7L)
2010 (DS, KA, KK) - System (9 - Engine - 3.7L)
2011 (DS, KA, KK) - System (9 - Engine - 3.7L)
2012 (DS, KK) - System (9 - Engine - 3.7L)
Question - What's the difference between the 8516 and the 8387, they look practically the same?
Answer - The 8516A is a rocker arm remover and the 8387 is a valve spring remover. Some websites have their listings pictured wrong which adds to the confusion. Our pictures are correct. The rocker arm cannot be used to remove the valve springs. You can however use the valve spring remover to remove the rocker arm, but it's not easy. There is also a risk of dropping the valve keeper if trying to use the valve spring compressor when removing or installing the rocker arm. It's best to use these different tools for the purpose they were designed for to eliminate possible problems. That's why some of our customers purchase both.
The YouTube video shows the difference between the 8516A and the 8387. Also available at WiseAutoTools.com Miller 8387.