Tuff Stuff Performance Silver Bullet Alternators

4.55 out of 5 stars 143 Customer Reviews

Tuff Stuff Performance Silver Bullet alternators feature high-tech rotors and stators, built with elevated copper and steel content, to deliver the greatest output

Tuff Stuff Performance Silver Bullet alternators feature high-tech rotors and stators, built with elevated copper and steel content, to deliver the greatest output with the best reliability. Ultra-low cut-in voltage regulators keep the extra amps flowing in low-idle situations, and a real one-wire hookup (most models) simplifies the installation of these alternators. Silver Bullet alternators have a billet aluminum fan and your choice of a serpentine or V-groove pulley to give them over-the-top styling. They also feature the highest quality neoprene-sealed bearings for long life. Order the model recommended for fitme

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Tuff Stuff Performance Silver Bullet Alternators 7866ABULL6G

Alternator, Chrome, 160 Amps, Serpentine, Center Offset, Chevy, Pontiac, Each

Part Number: TFF-7866ABULL6G

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7140ABULL

Alternator, 140 Amp, 1-Wire, Chrome, V-Belt, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: TFF-7140ABULL

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7139ABULL

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

Part Number: TFF-7139ABULL

4.54 out of 5 stars ( 26 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7140ABULL6G7

Alternator, Black Chrome, 140 amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7140ABULL6G7

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140BBULL6G

Alternator, Polished, 140 Amp, 1-Wire, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7140BBULL6G

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7140ABULL6G

Alternator, Chrome, 140 amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7140ABULL6G

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7866FP6G22

Alternator, Bullet Fan, 6 Groove Pulley, 160 amp, Polished, 1-Wire or OEM Hookup, Center Offset, GM, Each

Part Number: TFF-7866FP6G22

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140BBULL

Alternator, Polished, 140 Amps, V-Belt, Buick, Chevy, GMC, Oldsmobile, Pontiac, GMC, Each

Part Number: TFF-7140BBULL

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7139BBULL6G

Alternator, Polished, 100 Amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7139BBULL6G

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139BBULL9

Alternators and Generators, Silver Bullet Alternators, GM 10si Case Style, 12 V, 100 amps, Polished, V-belt Pulley, AMC, Buick, Chevy, GMC, Jeep, Olds

Part Number: TFF-7139BBULL9

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139FBULLOR

Alternators, Silver Bullet, GM 10SI/10DN/12SI, 12 V, 100 amps, Orange Powdercoated, V-belt Pulley, Buick, Chevy, GMC, Jeep, Oldsmobile, Pontiac, Each

Part Number: TFF-7139FBULLOR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140ABULL9

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

Part Number: TFF-7140ABULL9

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABULL6G7

Alternator, Black Chrome, 100 Amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7139ABULL6G7

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABULL7

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

Part Number: TFF-7139ABULL7

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140BBULL12

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

Part Number: TFF-7140BBULL12

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139FBULLBLU

Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 100 Amps, Blue Powdercoated, V-Belt Pulley, Each

Part Number: TFF-7139FBULLBLU

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139BBULL12

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

Part Number: TFF-7139BBULL12

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABULL6G

Alternator, Chrome, 100 Amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7139ABULL6G

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABULL9

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

Part Number: TFF-7139ABULL9

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140BBULL6

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

Part Number: TFF-7140BBULL6

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140BBULL9

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

Part Number: TFF-7140BBULL9

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABULL6

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

Part Number: TFF-7139ABULL6

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABUL6G12

Alternators and Generators, Silver Bullet Alternators, GM 10si Case Style, 12 V, 100 amps, Chrome, Serpentine Pulley, AMC, Chevrolet, GMC, Jeep, Each

Part Number: TFF-7139ABUL6G12

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139FBULLY

Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 100 Amps, Yellow Powdercoated, V-Belt Pulley, Each

Part Number: TFF-7139FBULLY

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139BBULL6

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

Part Number: TFF-7139BBULL6

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

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