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Instruction Sheets for Part Number TFF-7139ABULL6G
Charts & Guides for Part Number TFF-7139ABULL6G
Tuff Stuff Performance Silver Bullet Alternators
Alternator, Chrome, 100 Amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each
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Estimated Ship Date: Feb 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
7139ABULL6G
Part Type:
Product Line:
Summit Racing Part Number:
TFF-7139ABULL6G
UPC:
698252004916
Remanufactured:
No
Alternator Case Style:
GM 10SI/10DN/12SI
Advertised Amperage Output:
100 amps
Color:
Chrome
Coating Type:
Plated
Finish:
Chrome
Voltage Compatibility:
12
One-Wire Capable:
Yes
Pulley Included:
Yes
Pulley Style:
Serpentine
Regulator Included:
Yes
Alternator Regulator Location:
Internal
Belt Included:
No
Alternator Brackets Included:
No
Quantity:
Sold individually.
Notes:
With 12si style smooth rear housing. 6 groove pulley.
Tuff Stuff Performance Silver Bullet Alternators
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 fitment and performance on your specific vehicle.
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Some parts are not legal for use in California or other states with similar laws / regulations
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