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Charts & Guides for Part Number TFF-7127NK7
Tuff Stuff Performance High-Amp Output Alternators
Alternator, 140 Amp, Replacement, V-Belt, Black Chrome, Buick, Cadillac, 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:
7127NK7
Part Type:
Product Line:
Summit Racing Part Number:
TFF-7127NK7
UPC:
698252017640
Remanufactured:
No
Alternator Case Style:
GM 10SI/10DN/12SI
Advertised Amperage Output:
140 amps
Color:
Black chrome
Coating Type:
Plated
Finish:
Black chrome
Voltage Compatibility:
12
One-Wire Capable:
Yes
Pulley Included:
Yes
Pulley Style:
V-belt
Regulator Included:
Yes
Alternator Regulator Location:
Internal
Belt Included:
No
Alternator Brackets Included:
No
Quantity:
Sold individually.
Notes:
With 12si style smooth rear housing. V-belt pulley accommodates 3/8 in. wide belts.
Tuff Stuff Performance High-Amp Output Alternators
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.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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