We now have replacement tone rings for those who want to build an engine but need to replace the tone ring to match their PCM
Tone Ring, 4.7L Magnum, Dodge, Chrysler, Jeep,
If you want to install a 2003-up 4.7L into your 1999-2002 truck you will need to swap out the tone ring to make it compatible with your PCM.
These new tone rings allow you to build the engine for whatever application you need without needing to buy the one specific to your year. All you need to know is what PCM you have… and chose the tone ring which is made for that application. So now you can stick a 2007 4.7L into your 1999 Dodge/Jeep truck… or the opposite.
VERIFY CORRECT TONE RING NEEDED
PLEASE VERIFY WHAT PCM WILL BE RUNNING THE ENGINE BEFORE PURCHASING!
Below is for quick reference only and you still need to verify what you have.
JTEC PCM = 3-PLUG PCM – Runs 16tooth Tone Ring (Typically 1999-2002)
NGC PCM = 4-PLUG PCM – Runs 32-tooth Tone Ring (Typically 2003-2013)
Dropships direct from manufacturer.

This product was added to our catalog on Saturday 22 February, 2025.