purchased in March and drove car car twice. Stopped working. What is next step

They have a 30 day return policy and we are past that

will this work with 3 wire systems ?

Yes it will work with a 3 or a 1. The people on here saying it won't work as a 1 wire are ignorant to 12v automobile charging systems!!! They think they know but they don't! It works with 1 wire or 3 if you know how to correctly excite it. You may have to hit it with 12volts for a few seconds to build residual magnetism in the stator. If you don't know what I'm talking about then I suggest you study up before installing this alternator. Self excited still may need to be manually excited for the 1st time. Then depending on how much amp draw and load you may need to find tune the output or you'll be the guy saying " worked great for a couple of months then burned up". There is a lot more to it than most people understand.

What are the connections label r and f for

Supposed to be 1 wire connection, battery + to red bat. post on alternator. I didn't use the spade terminals. Can't explain terminal R. Normal markings B, battery, A, armature, F, field.

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⚡ Power Your Classic Ride with Effortless High-Output Performance!

BUILT TO LAST - Crafted from premium iron, aluminum, and silicon for superior durability and quiet operation on every drive.
UNMATCHED POWER BOOST - Delivers a robust 120 Amp output to keep your electrical system running flawlessly, even under heavy load.
PLUG PLAY SIMPLICITY - 1-wire self-exciting design means effortless installation and reliable performance without complicated wiring.
OPTIMIZED COOLING DESIGN - Keeps airflow unobstructed to prevent overheating, ensuring consistent power delivery on long hauls.
WIDE VEHICLE COMPATIBILITY - Perfectly engineered for classic GM engines including 305, 350 BBC, and SBC models—upgrade your street rod with confidence.

This 120 Amp chrome alternator from TUPARTS is a high-performance, self-exciting 1-wire system designed for GM 305, 350 BBC, and SBC engines. Built with premium iron, aluminum, and silicon components, it ensures durable, quiet operation while providing reliable power to keep your battery charged and your vehicle running smoothly. Ideal for street rods and classic cars, it offers easy installation and optimized cooling for long-lasting performance.

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Manufacturer	TUPARTS
Brand	TUPARTS
Model	Alternators
Product Dimensions	24 x 19 x 18 cm; 5.12 kg
Item model number	Adjustable
Manufacturer Part Number	110605-5232-0906556876
Material	Iron, Aluminum, Silicon
Colour	As Shown
Manufacturer	TUPARTS
Item Weight	5 kg 120 g

Automotive Alternator Compatible for 120Amp Chrome 1 Wire Self Exciting Street Rod GM 305 350 BBC SBC

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