Which alternator is correct for 71 Road Runner?

Technical Question and Answer - On topic to 71-74 Plymouth B-bodies only.

Moderator: Site Administrators

Post Reply
Wizard
Satellite Coupe (RL)
Posts: 14
Joined: Mon Aug 27, 2007 10:41 pm
Location: Wellsville, PA

Which alternator is correct for 71 Road Runner?

Post by Wizard » Mon Sep 03, 2007 10:53 pm

Which type of alternator is factory correct for my car? I have a 71 Road Runner built in April 71 would the alternator have a round back side or a square back? Any other info on the dates that it may have changed over between the 2 would be great. I have a few alternators one says date code 70 and has round back and other one has 71 on it I believe but hard to read the sunburst date code and near output terminal due to light stamping.

Thanks,

Wizard
Wizard

User avatar
mopar71
GTX (RS)
Posts: 1108
Joined: Sun Dec 14, 2003 11:55 pm
My Cars: 1971 roadrunner
Location: Milford,PA

Post by mopar71 » Tue Sep 04, 2007 6:07 pm

In 78 when I had my 71 roadrunner the alternator was round in the back.I think it was the original. 8)
MOPAR (Move Over Plymouth Approching Rapidly)

Wizard
Satellite Coupe (RL)
Posts: 14
Joined: Mon Aug 27, 2007 10:41 pm
Location: Wellsville, PA

71 alternator

Post by Wizard » Thu Sep 06, 2007 11:55 pm

Found out the answer. It's a 37 amp roundback alternator.

Thanks,

Wizard
Wizard

Post Reply