Tuff Stuff Performance High-Amp Output Alternators

4.49 out of 5 stars 288 Customer Reviews

A Tuff Stuff Performance high-amp output alternator is just what every ride needs. These units produce the most power at idle to keep your battery fully charged at all times. Tuff Stuff products are hand-built with the best bearings, diodes, and copper windings available. The alternators are available in a variety of amperages, case and pulley styles, finishes, and with internal or external regulator. Order the model designed for your specific vehicle application.

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Tuff Stuff Performance High-Amp Output Alternators 7716BP

Alternator, Polished, 100 amps, Serpentine, Ford, Mercury, Each

Part Number: TFF-7716BP

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Tuff Stuff Performance High-Amp Output Alternators 7127NKP9

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 140 Amps, Polished, V-Belt, Each

Part Number: TFF-7127NKP9

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Tuff Stuff Performance High-Amp Output Alternators 7127NK12