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The Tuff Stuff 7516G is a high-output 250-amp alternator built for the 2012–2018 Jeep Wrangler JK with the 3.6L Pentastar V6. It uses a Denso-style housing, a six-groove serpentine pulley and an army-green powder coat, and it runs external voltage regulation. That output is roughly double a stock JK alternator, which is the point: it suits rigs running winches, light bars, dual batteries, fridges or big audio. The trade-offs are real. It needs an external regulator wired in, it is a one-year limited warranty part, and high-output units run hotter and can be noisier at idle than stock.
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Availability unknownSold by wundercarparts (99.8% positive, 219,100 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $431.93 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.
Owner feedback on Tuff Stuff high-output alternators is mixed. People who install them for winches and accessory loads report strong charging, while others cite regulator wiring hassle and short-lived units.
