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Tuff Stuff - 1971-1986 (10SI) GM Alternators
The 10SI GM style alternators have a custom voltage regulator that lets the alternator be used as a 1-wire alternator or can be factory wired using the OEM plug. Available in a variety of finishes, these alternators output 100 or 140 amps. Every Tuff Stuff alternator is hand built and load tested in Cleveland, Ohio.
Browse 1971-1986 (10SI) GM Alternators Products
Description: Product Features
Single Groove Pulley
Cast Steel
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7127K9
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7127NKP12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7127NKP6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
More Details »
Item #: 7127NKP
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7127NKP9
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7127NKB12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
More Details »
Item #: 7127NKB6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
More Details »
Item #: 7127NKB
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7127NKB9
Condition:
New
Please Call for Availability
![Alternators - 1971-1986 (10SI) GM Alternators - Tuff Stuff Performance - Alternator 65 AMP 1 Wire [Not An OEM Hookup] 6 Volt Negative Ground V Groove Pulley Chrome 7127NG](https://www.tuffstuffperformance.com/images/T221317449.jpeg)
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NG
Condition:
New
Please Call for Availability
![Alternators - 1971-1986 (10SI) GM Alternators - Tuff Stuff Performance - Alternator 65 AMP 1 Wire [Not An OEM Hookup] 6 Volt V Groove Pulley Black 7127NH](https://www.tuffstuffperformance.com/images/T221317374.jpeg)
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NH
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NJP
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NJ
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NBP6G
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NB6G
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NE6G
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NBP
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NE
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127NB
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7127
Condition:
New
Please Call for Availability
![Alternators - 1971-1986 (10SI) GM Alternators - Tuff Stuff Performance - Alternator Case Kit Fits GM 12SI And Tuff Stuff Alternator PN[7294] Incl. Front And Rear Housings/Fan/Pulley/Nut/Lockwashers/Thru Bolts Chrome Plated 7500J](https://www.tuffstuffperformance.com/images/T221317042.jpeg)
Description: Product Features
Use Our Tuff Stuff Finish On Your Own Alternator
Made In The U.S.A.
More Details »
Item #: 7500J
Condition:
New
Please Call for Availability
![Alternators - 1971-1986 (10SI) GM Alternators - Tuff Stuff Performance - Alternator Repair Kit GM 10SI OEM Wire Incl. All Parts And Bearings To Rebuild Tuff Stuff Alternator PN[7127NA] 7700A](https://www.tuffstuffperformance.com/images/T221316896.jpeg)
Description: Product Features
Includes All Of The Small Parts Needed To Rebuild An Alternator
Fits Tuff Stuff 7127 7139 7140 GM 10SI With OEM Regulator
Made In The U.S.A....More Details »
Item #: 7700A
Condition:
New
Please Call for Availability
Description: Product Features
Can Be Used As A 1-Wire Or OEM Hookup
Provides Charging At Low RPMs
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Meets Or Exceeds OEM Specifications...More Details »
Item #: 7866FP6G22
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
More Details »
Item #: 7139FBUL6G12
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139FBULL6G
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Black Chrome
Made In The U.S.A.
Item #: 7139ABULL6G7
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Item #: 7139ABUL6G12
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139ABULL6G
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Item #: 7139BBUL6G12
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139BBULL6G
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139FBULL12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139FBULL6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139FBULL9
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139FBULLBLU
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139ABULL12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139ABULL6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139ABULL9
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139FBULLOR
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139BBULL12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139BBULL6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7139BBULL9
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139FBULLRED
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139FBULLY
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139FBULL
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Black Chrome
Made In The U.S.A.
Item #: 7139ABULL7
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139ABULL
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Meets Or Exceeds OEM Specifications
100% New Components
One Year Limited...More Details »
Item #: 7139BBULL
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
More Details »
Item #: 7140FBUL6G12
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Case Depth Is 4.36 in. And Lower Mount Boss Is 2 in. Long
Meets Or Exceeds OEM...More Details »
Item #: 7140FBULL6G
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Black Chrome
Made In The U.S.A.
Item #: 7140ABULL7
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Item #: 7140ABUL6G12
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Case Depth Is 4.36 in. And Lower Mount Boss Is 2 in. Long
Meets Or Exceeds OEM...More Details »
Item #: 7140ABULL6G
Condition:
New
Please Call for Availability
Description: Product Features
6 Groove Pulley
Polished Aluminum Finish
Made In The U.S.A.
Item #: 7140BBUL6G12
Condition:
New
Please Call for Availability
Description: Product Features
Heavy Duty Copper Wound Coils
Spike Resistant Diodes
Provides Charging At Low RPMs
Case Depth Is 4.36 in. And Lower Mount Boss Is 2 in. Long
Meets Or Exceeds OEM...More Details »
Item #: 7140BBULL6G
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7140FBULL12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7140FBULL6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Stealth Black Powder Coated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7140FBULL9
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7140ABULL12
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7140ABULL6
Condition:
New
Please Call for Availability
Description: Product Features
Single Groove Pulley
Chrome Plated Finish
Made In The U.S.A.
Clocked-Right; Direct-Fit; No Hassle Installation
More Details »
Item #: 7140ABULL9
Condition:
New
Please Call for Availability