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1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, 1978, 1977, 1976, 1975, 1974, 1973, 1972, 1971, 1970 GMC Jimmy 1970-1986 Alternator
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1970 - 1986 GMC Jimmy 1970-1986 Alternator (Proform) NEW

Out of Stock
$ 203 .51

Product Notes

Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!
Brand: Proform
Condition: New
See Other GMC Jimmy Alternators
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
AC Service Tap No
Amperage Output 60 Amp
Amperage Rating 60
Applications Chevy Small Block 305 To 350 Engines 1972 To 1987; Chevy Big Block 402 To 454 Engines 1970 To 1986; Pontiac 326 To 455 Engines 1962 To 1979; Oldsmobile 215 To 455 Engines 1963 To 1984; Buick 215 To 455 Engines 1963 To 1977
Brushless No
Case Circumference 17.5
Case Color Chrome
Case Material Aluminum
Case Style 10si Style
Category Alternators
Decoupled Or Clutch Pulley Yes
Distance Between Mounting Feet 6.133
Drive End To Pulley 1st Groove Distance 1.4
Drive End To Rotor Shaft End Distance 6
External Fan Included Yes
External Regulator Included Yes
Family 10si Style
Fan Type Internal
Feature/Benefit A Manufacturing Break-through Has Enabled Proform To Offer 100% New Alternators With The Same Affordability As Our Popular Re-built Models!
Finish Chrome
Ground Type Positive
Mounting Type Standard
One Wire Capable Yes
Outside Pulley Diameter 2.621
Plug Clock Rear View Main Mounting Ear At 6 O Clock 2
Pulley Belt Type V-belt
Pulley Cogged Quantity 1
Pulley Diameter 2 1/2 Inch
Pulley Groove Quantity 0
Regulator Type Internal
Voltage 12 Volt

Vehicle Fitment Guide

This part fits the following vehicles:

GMC 1 model (tapclick to expand)(tapclick to hide)
Jimmy 1970-1986 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 1982 - 1986 V8 6.2L DIESEL 4WD Automatic & Manual
Base SUV 1982 - 1984 V8 6.2L DIESEL RWD Automatic & Manual
Base SUV 1975 - 1979 V8 6.6L RWD/4WD Automatic & Manual
Base SUV 1973 - 1974, 1976 V8 7.4L RWD/4WD Automatic & Manual
Base SUV 1973 - 1974 V8 7.4L RWD/4WD U/K
Base SUV 1970 - 1982 L6 4.1L RWD/4WD Automatic & Manual
Base SUV 1970 - 1974 L6 4.1L RWD/4WD U/K
Base SUV 1970 - 1974 L6 4.8L RWD/4WD Automatic & Manual & U/K
Base SUV 1970 - 1973, 1977 - 1986 V8 5.0L 4WD Automatic & Manual
Base SUV 1970 - 1973, 1977 - 1984 V8 5.0L RWD Automatic & Manual
Base SUV 1970 - 1973 V8 5.0L RWD/4WD U/K
Base SUV 1970 - 1986 V8 5.7L 4WD Automatic & Manual
Base SUV 1970 - 1984 V8 5.7L RWD Automatic & Manual
Base SUV 1970 - 1974 V8 5.7L RWD/4WD U/K
High Sierra SUV 1982 - 1985 V8 6.2L DIESEL 4WD Automatic & Manual
High Sierra SUV 1982 - 1984 V8 6.2L DIESEL RWD Automatic & Manual
High Sierra SUV 1977 - 1985 V8 5.0L 4WD Automatic & Manual
High Sierra SUV 1977 - 1984 V8 5.0L RWD Automatic & Manual
High Sierra SUV 1976 V8 7.4L RWD/4WD Automatic & Manual
High Sierra SUV 1975 - 1982 L6 4.1L RWD/4WD Automatic & Manual
High Sierra SUV 1975 - 1985 V8 5.7L 4WD Automatic & Manual
High Sierra SUV 1975 - 1984 V8 5.7L RWD Automatic & Manual
High Sierra SUV 1975 - 1979 V8 6.6L RWD/4WD Automatic & Manual
Sierra Classic SUV 1982 - 1986 V8 6.2L DIESEL 4WD Automatic & Manual
Sierra Classic SUV 1982 - 1984 V8 6.2L DIESEL RWD Automatic & Manual
Sierra Classic SUV 1978 - 1984 V8 5.0L RWD Automatic & Manual
Sierra Classic SUV 1977 - 1986 V8 5.0L 4WD Automatic & Manual
Sierra Classic SUV 1976 V8 7.4L RWD/4WD Automatic & Manual
Sierra Classic SUV 1975 - 1982 L6 4.1L 4WD Automatic & Manual
Sierra Classic SUV 1975 - 1976, 1978 - 1982 L6 4.1L RWD Automatic & Manual
Sierra Classic SUV 1975 - 1986 V8 5.7L 4WD Automatic & Manual
Sierra Classic SUV 1975 - 1976, 1978 - 1984 V8 5.7L RWD Automatic & Manual
Sierra Classic SUV 1975 - 1979 V8 6.6L 4WD Automatic & Manual
Sierra Classic SUV 1975 - 1976, 1978 - 1979 V8 6.6L RWD Automatic & Manual
Sierra Grande SUV 1982 V8 6.2L DIESEL RWD/4WD Automatic & Manual
Sierra Grande SUV 1977 - 1982 V8 5.0L RWD/4WD Automatic & Manual
Sierra Grande SUV 1976 V8 7.4L RWD/4WD Automatic & Manual
Sierra Grande SUV 1975 - 1982 L6 4.1L RWD/4WD Automatic & Manual
Sierra Grande SUV 1975 - 1982 V8 5.7L RWD/4WD Automatic & Manual
Sierra Grande SUV 1975 - 1979 V8 6.6L RWD/4WD Automatic & Manual
Silverado SUV 1986 V8 5.0L 4WD Automatic & Manual
Silverado SUV 1986 V8 5.7L 4WD Automatic & Manual
Silverado SUV 1986 V8 6.2L DIESEL 4WD Automatic & Manual
Street Coupe SUV 1982 V8 6.2L DIESEL RWD Automatic & Manual
Street Coupe SUV 1978 - 1982 L6 4.1L RWD Automatic & Manual
Street Coupe SUV 1978 - 1982 V8 5.0L RWD Automatic & Manual
Street Coupe SUV 1978 - 1982 V8 5.7L RWD Automatic & Manual
Street Coupe SUV 1978 - 1979 V8 6.6L RWD Automatic & Manual
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

Fits Years: 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986

Fits Models: Jimmy

Go-Parts Garage · Featured Guide

A Practical Guide to the 1970-1982 GMC Jimmy Alternator

Keep your classic Jimmy running strong by choosing the right alternator for its electrical needs.

Read Full Guide →
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