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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⚡ Charge Ahead with Confidence — Power Meets Precision!

BUILT TO LAST - Crafted with premium components and a sleek chrome finish for durability and a quiet, smooth operation.
POWER UP YOUR RIDE - Delivers a robust 120 Amp output to keep your battery charged and your electrical system running flawlessly.
WIDE COMPATIBILITY - Perfectly engineered for classic GM engines including 305, 350, BBC, and SBC street rods—upgrade without compromise.
PEACE OF MIND WARRANTY - Backed by a no-hassle 1-year warranty, ensuring your investment is protected and reliable.
PLUG PLAY SIMPLICITY - 1-wire self-exciting design means easy installation with minimal wiring hassle—get back on the road faster.

This TUPARTS 120 Amp chrome alternator is a high-output, self-exciting 1-wire system designed for GM 305, 350, BBC, and SBC street rod engines. Featuring a durable chrome finish, internal regulator, and quiet operation, it ensures your vehicle’s electrical system stays fully powered on every drive. Easy to install and backed by a 1-year hassle-free warranty, it’s the ultimate upgrade for classic car enthusiasts seeking reliable performance and style.

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Manufacturer	TUPARTS
Brand	TUPARTS
Model	Alternators
Item Weight	11.29 pounds
Product Dimensions	9.45 x 7.48 x 7.09 inches
Item model number	Adjustable
Manufacturer Part Number	110605-5232-0906556876
Special Features	12 Volt, Clockwise, 1 Wire System, 1-Groove Pulley, 10SI alternator, Internal Regulator, Self Excited Alternator

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

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