Tuff Stuff Performance Silver Bullet Alternators

4.54 out of 5 stars 142 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 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 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 7861BBULL6G

Alternator, GM CS130 Case Style, 12 V, 160 amps, Serpentine Pulley, 1-wire, Polished, Left Offset, Chevy, Pontiac, Each

Part Number: TFF-7861BBULL6G

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Tuff Stuff Performance Kool-Charger Factory Cast Plus Alternators 7861K-16G

4.25 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 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

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 7861F6G22

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

Part Number: TFF-7861F6G22

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Tuff Stuff Performance Silver Bullet Alternators 7935ABULL

Alternator, Chrome, 160 Amp, V-Belt, Center Offset, Chevy, GMC, Each

Part Number: TFF-7935ABULL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140ABULL7

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

Part Number: TFF-7140ABULL7

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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 7139BBULL

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

Part Number: TFF-7139BBULL

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

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

4.75 out of 5 stars ( 25 )

Estimated Ship Date: Today

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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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7861ABULL

Alternator, Chrome, 160 Amp, 1-wire, V-Belt, Left Offset, Chevy, Pontiac, GMC, Each

Part Number: TFF-7861ABULL

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7861BBULL

Alternator, Polished, 160 Amps, V-Belt, Left Offset, Chevy, GMC, Pontiac, Each

Part Number: TFF-7861BBULL

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7139ABULL12

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

Part Number: TFF-7139ABULL12

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Tuff Stuff Performance Silver Bullet Alternators 7140BBUL6G12

Alternators, Silver Bullet, GM 10SI/10DN/12SI, 12 V, 140 amps, Polished, Serpentine Pulley, AMC, Buick, Chevy, GMC, Jeep, Oldsmobile, Pontiac, Each

Part Number: TFF-7140BBUL6G12

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

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