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420A Rocker Arm / Camshaft Follower Interchangeability Guide

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This is the end-all interchangeability guide for our rocker arms. You won't find all vehicles on any program or catalogue. Most searches will return a handful of applications, between 67 (Summit Racing) and 153 (Mopar themselves). Realistically, there are 472 interchangeable vehicle trims. It cost tiring hours to find all of them, so I wanted to share the full guide. Listed below are all vehicles with rocker arm / camshaft follower interchangeability. Note, some Chrysler vehicles were only produced in Mexico.

Chrysler:
2001-2010 PT Cruiser. All sub models. (2.4L)
1995-2000 Cirrus. LX, Limited, LXI (2.4L).
1995-1997 Neon. Base, LE, SE, LX, Conveniencia, Lujo, Juvenil Lujo (2.0L DOHC, not 420A).
1995-1999 Sebring. LX, JX, JXI (420A & 2.4L DOHC).
2001-2010 Sebring. Base, Touring, Limited, LX, LXI (2.7L & 2.4L 2429cc).
1995-1997 Stratus. LE, SE, LX, R/T (2.4L).
2000-2003 Voyager. Base, LX, EC (2.4L).


Dodge:
1995-1999 Avenger. Base only in '95, ES & Base '96-'99. (These are 420A).
1996-2000 Caravan. Base & SE (2.4L)
2005-2008 Magnum. Base & SE. (2.7L)
2003-2005 Neon, SRT-4 only.
1995-1999 Neon. All sub models (but only DOHC equipped).
1995-2000 Stratus. Base, ES, SE, R/T (2.4L)
2001-2006 Stratus. SE, SXT, R/T (2.4L & 2.7L- only produced '01-'06).


Eagle:
1995-1998 Talon base ESI (The Eclipse brother, these are 420A).

Jeep:
2002-2005 Liberty Sport (2.4L).
2003-2006 Wrangler SE Sport (2.4L).


Mitsubishi:
1995-1999 Eclipse RS (420A, we know this already...)

Plymouth:
1996-2000 Breeze, both sub models (if 2.4L equipped).
1995-1999 Neon, all sub models (but only DOHC equipped).



Something else to note: the 2.4 turbo and non turbo do have interchangeability.


So you've probably noticed a trend. Each vehicle is equipped with either a 2.0L, 2.4L, or 2.7L. But do not be mistaken. Some variations of these engines do not have interchangeability. I will list some below with reasoning. Not interchangeable:
- Mexico production 1995cc 122CI 2.0L DOHC. This engine has dual rocker shafts.

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- USA Mopar 1996cc 122CI 2.0L SOHC. These SOHC engines have a single rocker shaft.

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- 2360cc 144CI 2.4L DOHC found in 2007-2010 Chrysler Sebring. These engines have a flat tappet/bucket style lifter.

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- Mexico production 2400cc 146CI 2.4L DOHC. This engine has dual rocker shafts similar to the 1995cc production.
- USA Mopar 2351cc 144CI 2.4L. Foun in the 2001-2005 Sebring, this SOHC engine has a single rocker shaft similar to the 1996cc SOHC.


Essentially, these are the specific engines you will look for:
- 1996cc 122CI 2.0L I4 DOHC (420A or reverse flow).
- 2429cc 148CI 2.4L I4 DOHC
- 2736cc 167CI 2.7L V6


So, what are the differences between all of these rocker arms and why don't they show in interchange catalogues? The OE 2.0L/2.4L rocker arms had slight production alterations between year models. Changing the valve stem contact point from being welded to a one piece casting. But the most notable difference is with the 2.7L rockers. The squirter holes are angled differently than the 2.0/2.4 arms. See images below.

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All of these rocker arms can be interchanged between all of the vehicles and engines I listed above. But with this being said, the 2.7L rocker arms would be my preference for any application. The squirter is directed properly for optimal camshaft lobe lubrication. Aside from this, one of these days the 2.0/2.4 rocker arms will lose production from their age or obscenity. The 2.7 rocker arms are here to stay for a while.

Hope this helps someone. There isn't a massive demand for this information but I like to share technical information to get it out of my head and accessible to the community. What a mess I got into with this one. Who knew the Jeeps were equipped.
 
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