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This part fits your vehicle!
Based on the manufacturer’s specs, this product is an exact fit for your 1975-1978 GMC K25
1975-1978 GMC K25 - AC Delco Alternator
Part number: AC321-39
Manufacturer number: 321-39
Product Description: AC DELCO ALTERNATOR, REMANUFACTURED -- 63 amps; A high quality, direct fit OE replacement alternator; With AC Delco's limited lifetime...Read More
Condition: Remanufactured
Fit note: Truck
- Overview
- Manufacturer info
- Extended Warranty
AC DELCO ALTERNATOR, REMANUFACTURED -- 63 amps; A high quality, direct fit OE replacement alternator; With AC Delco's limited lifetime warranty.
This product fits the following GMC K25 submodels
This product fits the following GMC K25 submodels
- 1975-1975: Base; 8 Cyl 5.7L; "GAS, CARB, VIN Y"
- 1975-1975: Base; 8 Cyl 6.6L; "GAS, CARB, VIN M"
- 1975-1975: High Sierra; 8 Cyl 5.7L; "GAS, CARB, VIN Y"
- 1975-1975: High Sierra; 8 Cyl 6.6L; "GAS, CARB, VIN M"
- 1975-1975: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, VIN Y"
- 1975-1975: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, VIN M"
- 1975-1975: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, VIN Y"
- 1975-1975: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, VIN M"
- 1975-1976: Base; 8 Cyl 5.7L; "GAS, CARB, VIN V"
- 1975-1976: High Sierra; 8 Cyl 5.7L; "GAS, CARB, VIN V"
- 1975-1976: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, VIN V"
- 1975-1976: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, VIN V"
- 1976-1976: Base; 8 Cyl 6.6L; "GAS, CARB, VIN U"
- 1976-1976: Base; 8 Cyl 7.4L; "GAS, CARB, VIN Y"
- 1976-1976: High Sierra; 8 Cyl 6.6L; "GAS, CARB, VIN U"
- 1976-1976: High Sierra; 8 Cyl 7.4L; "GAS, CARB, VIN Y"
- 1976-1976: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, VIN U"
- 1976-1976: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, VIN Y"
- 1976-1976: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, VIN U"
- 1976-1976: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, VIN Y"
- 1976-1978: Base; 8 Cyl 5.7L; "GAS, CARB, VIN L"
- 1976-1978: High Sierra; 8 Cyl 5.7L; "GAS, CARB, VIN L"
- 1976-1978: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, VIN L"
- 1976-1978: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, VIN L"
- 1977-1978: Base; 8 Cyl 6.6L; "GAS, CARB, VIN R"
- 1977-1978: Base; 8 Cyl 7.4L; "GAS, CARB, VIN S"
- 1977-1978: High Sierra; 8 Cyl 6.6L; "GAS, CARB, VIN R"
- 1977-1978: High Sierra; 8 Cyl 7.4L; "GAS, CARB, VIN S"
- 1977-1978: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, VIN R"
- 1977-1978: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, VIN S"
- 1977-1978: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, VIN R"
- 1977-1978: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, VIN S"
- 1978-1978: Base; 8 Cyl 5.0L; "GAS, CARB, VIN U"
- 1978-1978: High Sierra; 8 Cyl 5.0L; "GAS, CARB, VIN U"
- 1978-1978: Sierra Classic; 8 Cyl 5.0L; "GAS, CARB, VIN U"
- 1978-1978: Sierra Grande; 8 Cyl 5.0L; "GAS, CARB, VIN U"



