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This list of alternators will help you determine what alternators will interchange with each other on GM, Ford, and Chrysler vehicles. This should help you find the best alternator to use when upgrading to a higher amperage alternator. The alternators contained in each row will have the exact same mounting configuration. We can provide wiring harness adapters, a 1-wire regulator, or instructions if wiring changes are necessary.

Click on a picture to see the unit and available amperages on our website.

GM (with straight ear mounts - 6.6" between ears)

10DN
10DN
Up to 120A

10SI and 12SI
10SI, 12SI
Up to 100A

CS-130
CS-130
Up to 135A

CS-130D
CS-130D
Up to 180A

Mega Amp Case
MegaAmp
Up to 320A



GM (with straight ear mounts - 7.2" between ears)


CS-130
Up to 135A


17SI
Up to 120A


CS-130D
Up to 180A


CS-144
Up to 300A

Mega Amp for CS-144
Mega Amp
Up to 320A



GM (with dual spool ear mount)


CS-130D
Up to 180A


CS-144
Up to 300A


AD-244
Up to 300A


MegaAmp
Up to 320A



Ford (with straight ear mounting - 6.93" between ears)

1G Small Case
1G Small Case
Up to 100A

2G
2G
Up to 80A 

3G Small Case
3G Small Case
Up to 160A 

3G Large Case
3G Large Case
Up to 250A 

Mega Amp Case
Mega Amp
Up to 320A



Ford (with straight ear mounting - 8" between ears)


1G Large Case
Up to 225A


3G Large Case
Up to 250A



Ford 3G  (V mounting style)


Small Case
Up to 160A


Large Case
Up to 250A


MegaAmp
Up to 300A



Ford 3G  (T mounting style)


Small Case
Up to 160A


Large Case
Up to 250A


Denso Case
Up to 300A



Ford 6G  (V mounting style)


Small Case
Up to 160A


Large Case
Up to 250A


MegaAmp
Up to 300A



Ford 6G  (T mounting style)


Small Case
Up to 160A


Large Case
Up to 250A


Denso Case
Up to 300A



Chrysler - Early


MegaAmp
Up to 320A



Chrysler - Late


Denso 1st Gen
Up to 200A


Bosch Case
Up to 240A

Mega Amp Case
  Denso 2nd Gen
Up to 320A