Description
Part Number: AF4870-1120
Aeroflow GM 120 Amp Chrome Alternator
Upgrade your vehicle’s charging system with the Aeroflow Performance AF4870-1120 GM Chevrolet style alternator. Delivering a robust 120 Amp output in a polished chrome finish, this high-performance alternator is engineered for muscle cars, classic restorations, and custom motorsport builds requiring dependable electrical output at high and low RPMs.
Key Features
- ☑ High Output 120A Rating: Factory load tested to supply max power for demanding ignition and accessory loads.
- ☑ Flexible 1-Wire or 3-Wire Setup: Run as a simple self-exciting single wire or wired into a standard 3-wire harness.
- ☑ Internal Voltage Regulator: Eliminates external regulators to streamline and declutter your engine compartment.
- ☑ Show-Quality Finish: High-shine chrome housing delivers standout aesthetics under the bonnet.
- ☑ Single V-Groove Pulley: Fitted with standard V-belt pulley ready for GM accessory drive systems.
Technical Specifications
| Brand | AeroFlow Performance |
|---|---|
| Manufacturer Part Number | AF4870-1120 |
| Amperage Rating | 120 Amp |
| Housing Style | GM / Chevrolet Style |
| Wiring Configuration | 1-Wire Self-Exciting or 3-Wire |
| Regulator Type | Internal Voltage Regulator |
| Pulley Included | Single V-Groove Pulley |
| Finish | Polished Chrome |
What’s Included in the Box
- 1 x Aeroflow AF4870-1120 GM 120A Chrome Alternator
- Pre-installed Single V-Groove Pulley
- 1-Wire / 3-Wire Terminal Port Connector Plug & Hardware
Assembled using premium internal components and factory load tested to exceed OEM specifications, Aeroflow Performance alternators provide optimal output even at idle speeds. Order your AF4870-1120 today from JP Racing for expert motorsport advice and fast UK shipping.







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