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 7127NK6G

Alternator, One-Wire, GM 10si Case Style, 12 V, 140 amps, Chrome, Serpentine Pulley, Buick, Chevy, Pontiac

Part Number: TFF-7127NK6G

5.0 out of 5 stars ( 6 )

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Tuff Stuff Performance High-Amp Output Alternators 7127ND

Alternator, Chrome, 100 amps, 1-wire, V-Belt, GM, Each

Part Number: TFF-7127ND

4.38 out of 5 stars ( 13 )

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Tuff Stuff Performance High-Amp Output Alternators 7078NKBW

Alternator, 140 Amp, Ford 1G, V-Belt, Black Wrinkle Powdercoated, Hybrid Case, Each

Part Number: TFF-7078NKBW

4.8 out of 5 stars ( 5 )

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Tuff Stuff Performance High-Amp Output Alternators 7078NDP

Alternator, Polished, 100 Amps, V-Belt, Ford, Lincoln, Mercury, Hybrid Case, Each

Part Number: TFF-7078NDP

4.75 out of 5 stars ( 4 )

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Tuff Stuff Performance High-Amp Output Alternators 7127NDP

Alternator, Polished, 100 Amps, V-Belt, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7127NDP

4.53 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7127NK

Alternator, 140 Amp, Replacement, V-Belt, Chrome, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7127NK

4.68 out of 5 stars ( 19 )

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Tuff Stuff Performance High-Amp Output Alternators 7068NKBW

Alternator, Black Wrinkle Finish, 140 Amp, V-groove Pulley, Ford, Lincoln, Mercury, Each

Part Number: TFF-7068NKBW

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7068RDP

Alternator, Internal Regulator, 100 Amp, One Wire, V-Belt, Polished, Ford, L4/L6/V6/V8, Each

Part Number: TFF-7068RDP

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Tuff Stuff Performance High-Amp Output Alternators 7078ND

Alternator, Chrome, 100 Amps, V-Belt, Ford, Mercury, Hybrid Case, Each

Part Number: TFF-7078ND

5.0 out of 5 stars ( 1 )

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Tuff Stuff Performance High-Amp Output Alternators for 1998-2001 CAMARO, FIREBIRD - 8242NAP

GM alternator LS1 125 amp O.E.M. repl. polished aluminum

Part Number: TFF-8242NAP

5.0 out of 5 stars ( 2 )

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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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Tuff Stuff Performance High-Amp Output Alternators 7068RD

Alternator, Chrome, 100 Amp, 1-Wire, V-Belt, Ford, Mercury, Each

Part Number: TFF-7068RD

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Tuff Stuff Performance High-Amp Output Alternators 7127NFBWDP

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Black Wrinkle Powdercoated, V-belt Pulley, Each

Part Number: TFF-7127NFBWDP

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7078NGBW

Alternators, High-Amp Output, Ford 1G, 12 V, 100 amps, Black Powdercoated, V-belt Pulley, AMC, Ford, Jeep, Lincoln, Mercury, Each

Part Number: TFF-7078NGBW

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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: Today

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Tuff Stuff Performance High-Amp Output Alternators 7078NA

Alternator, Chrome, 70 Amps, V-Belt, Ford, Lincoln, Mercury, Each

Part Number: TFF-7078NA

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7078NHBLUE

Alternators, High-Amp Output, Ford 1G, 12 V, 70 amps, Blue Powdercoated, V-belt Pulley, AMC, Ford, Jeep, Lincoln, Mercury, Each

Part Number: TFF-7078NHBLUE

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7127NDP6G

Alternator, One-Wire, GM 10si, 12 V, 100 amps, Polished, Serpentine Pulley, Buick, Chevy, Oldsmobile, Pontiac

Part Number: TFF-7127NDP6G

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7127NKP6G

Alternators and Generators, High-Amp Output Alternators, GM 10si Case Style, 12 V, 140 amps, Polished, Serpentine Pulley, Buick, Chevy, GMC, Jeep

Part Number: TFF-7127NKP6G

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7102NC

Alternator, External Regulator, 100 Amps, Chrome, V-Belt, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: TFF-7102NC

4.4 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7102NA

Alternator, Chrome, 80 Amps, V-Belt, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: TFF-7102NA

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Tuff Stuff Performance High-Amp Output Alternators 7127NKP

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

Part Number: TFF-7127NKP

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7127NK12

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

Part Number: TFF-7127NK12

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Tuff Stuff Performance High-Amp Output Alternators 7102NKBW

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

Part Number: TFF-7102NKBW

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Alternators 7127NK6G7

Alternator, One-Wire, GM 10si Case Style, 140 amps, Black Chrome, Serpentine Pulley, Buick, Chevy, Pontiac

Part Number: TFF-7127NK6G7

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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