Tuff Stuff Performance 7639 - Alternator Regulators, GM 10SI altenators

Tuff Stuff offers a wide range of alternator accessories ranging from replacement electrical connectors and pigtails to rebuild kits and replacement fans and pulleys. All Tuff Stuff alternator accessories are made from premium quality, 100% new components.

• Internal regulator design
• Can be used as a 1-wire or with OEM wiring
• For alternator pn 7127
• Heavy-duty electronics for longevity
• Resists voltage spikes
• 12 volt
• One year limited warranty
• Made in the U.S.A.