Ignitions and Electrical› Charging Systems
Mr. Gasket
1-Wire Alternator 140 Amp Chrome Finish Fits 1971-1986 GM Single V-Belt Mr Gasket
SKU: M00S 51203CG
Moderate — 2–4 hours
Description
Part #: 51203CG
Mr. Gasket Alternators are built using all new components, not remanufactured, and exceed OEM specifications for maximum performance and durability.
Features:
- 1 wire
- Made with Premium all new components (Not remanufactured)
- Heavy duty Copper Windings, Diodes & internal Voltage Regulators
- Ideal for HP, Muscle Cars, Truck & Daily Drivers
- Hand Assembled & Tested
- Attractive housing and finish options
- Includes pulley
Fits 1971-1986 GM Single V-Belt
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Mr. Gasket |
| Part Number | M00S 51203CG |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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