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Tuff Stuff Performance High-Amp Output Alternators

4.49 out of 5 stars 292 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.

Results 1 - 25 of 294

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 )

Estimated Ship Date: Tomorrow

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Alternators and Generators, High-Amp Output Alternators, Chrysler Square Back Case Style, 12 V, 130 amps, Polished, V-belt Pulley, Chrysler, Dodge

Part Number: TFF-9509RDPDP

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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Alternators and Generators, High-Amp Output Alternators, Chrysler Square Back Case Style, 12 V, 130 amps, Chrome, V-belt Pulley, Chrysler, Dodge, Each

Part Number: TFF-9509RDSP

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Nov 16, 2026 if ordered today

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Estimated Ship Date: Nov 16, 2026 if ordered today

Alternator, Internal Regulator, 12V, 250 Amp, CS144, V-Belt, Chrome Plated, GM, Each

Part Number: TFF-7290NE

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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: Tomorrow

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

Part Number: TFF-7078NA

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Alternator, One-Wire, 100 Amps, 1-Groove V-Belt, Chrome Finish, Chrysler, Dodge, Plymouth, Each

Part Number: TFF-8509RDSP

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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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: Jan 25, 2027 if ordered today

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Estimated Ship Date: Jan 25, 2027 if ordered today

Alternators, High-Amp Output, Denso, 12 V, 240 amps, Black Powdercoated, Serpentine Pulley, Jeep, Each

Part Number: TFF-7517B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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: Tomorrow

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Alternator, Chrome, 250 Amps, Serpentine, Chevy, Each

Part Number: TFF-8112NE

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 25, 2027 if ordered today

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Estimated Ship Date: Jan 25, 2027 if ordered today

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

Part Number: TFF-7127ND

4.38 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

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

Part Number: TFF-8242NAP

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Alternator, 60 Amp, Replacement, V-Belt, Chrome, Each

Part Number: TFF-8509RASP

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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

Part Number: TFF-7716BP

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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

Part Number: TFF-7102NK

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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

Part Number: TFF-7078NCP

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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

Part Number: TFF-7716B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 25, 2027 if ordered today

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Estimated Ship Date: Jan 25, 2027 if ordered today

Dodge/Jeep alternator, 90 amp polished

Part Number: TFF-7510AP

Not Yet Reviewed

Estimated Ship Date: Jan 25, 2027 if ordered today

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Estimated Ship Date: Jan 25, 2027 if ordered today

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: Tomorrow

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Alternators and Generators, High-Amp Output Alternators, Chrysler Square Back Case Style, 12 V, 130 amps, Chrome, V-belt Pulley, Chrysler, Dodge, Each

Part Number: TFF-9509RDDP

Not Yet Reviewed

Estimated Ship Date: Dec 7, 2026 if ordered today

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Estimated Ship Date: Dec 7, 2026 if ordered today