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  • Make/Model
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Tuff Stuff Performance

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators

4.54 out of 5 stars 732 Customer Reviews

A Tuff Stuff Performance high-amp output factory cast-plus 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; and the cast-plus finish is applied in the company's Cleveland, Ohio factories. This leaves a natural cast look but offers extreme durability from pitting. The alternators are available in a variety of amperages, case and pulley styles for fitment on thousands of specific vehicle applications.

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068

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

Part Number: TFF-7068

4.59 out of 5 stars ( 207 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068K

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068K

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068K

Alternator, Natural, 140 Amp, V-Belt Pulley, Ford, Lincoln, Mercury, Each

Part Number: TFF-7068K

4.83 out of 5 stars ( 58 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D12

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D12

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D12

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Natural, V-Belt Pulley, Each

Part Number: TFF-7127D12

4.96 out of 5 stars ( 25 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 70686G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 70686G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 70686G

Alternator, 100 Amp, One Wire, Serpentine, Natural, Ford, Mercury, Each

Part Number: TFF-70686G

4.64 out of 5 stars ( 47 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7078

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7078

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7078

Alternator, Natural Finish, 70 Amps, V-Belt Pulley, Ford, Lincoln, Mercury, Each

Part Number: TFF-7078

4.84 out of 5 stars ( 32 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7078NJ

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7078NJ

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7078NJ

Alternator, 140 amp, V-Belt, Natural As Cast, Hybrid Case, Each

Part Number: TFF-7078NJ

4.77 out of 5 stars ( 22 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6G

Alternator, Natural, 140 Amp, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7127K6G

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6G

Alternator, Natural, 100 Amp, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7127D6G

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068K6G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068K6G

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7068K6G

Alternator, Natural, 140 Amp, Serpentine Pulley, Ford, Lincoln, Mercury, Each

Part Number: TFF-7068K6G

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6G12

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6G12

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6G12

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Natural, Serpentine Pulley, Each

Part Number: TFF-7127D6G12

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D9

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D9

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D9

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Natural, V-Belt, Each

Part Number: TFF-7127D9

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6G12

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6G12

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6G12

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 140 Amps, Natural, Serpentine, Each

Part Number: TFF-7127K6G12

4.5 out of 5 stars ( 2 )

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 Factory Cast-Plus Alternators 7127K6

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K6

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

Part Number: TFF-7127K6

Not Yet Reviewed

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 Factory Cast-Plus Alternators 7127D6

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D6

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Natural, V-Belt Pulley, Each

Part Number: TFF-7127D6

5.0 out of 5 stars ( 1 )

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 Factory Cast-Plus Alternators 7127K9

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K9

Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127K9

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

Part Number: TFF-7127K9

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

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