Skip to content
icon-X
Close menu
Home
About
Alternators
Accessories
Merch
FAQ
Contact
Dealers
Receive a Quote
Instructions
Return Requests
Warranty & Other Policies
Privacy Policy
Blog
Log in
instagram
Instagram
Facebook
YouTube
Receive a Quote
Instructions
Return Requests
Warranty & Other Policies
Privacy Policy
Blog
instagram
Instagram
Facebook
YouTube
icon-search
Search
icon-hamburger
Site navigation
account
Log in
icon-search
Search
Cart
Home
About
Alternators
Accessories
Merch
FAQ
Contact
Dealers
Search
Search
Pause slideshow
Play slideshow
FREE SHIPPING
On all orders shipped within the United States
Hassle-free returns
90-day return policy
Lifetime Warranty
On JS Alternators employee labor and a one year warranty on parts
G25
Customers rate us 4.8/5 based on 179 reviews.
Select Vehicle
Select Vehicle
view all
Vehicle Make
Search
GMC
Infiniti
Vehicle Model
Search
All
G25
clear
Vehicle Year
Search
1970 1978
1974 1978
1975-1976
1975-1978
2011-2012
Vehicle Liter Engine
Search
2.5L
4.8L
5.7L
6.6L
7.4L
Amperage
250 amp alternator
(5)
320 amp alternator
(5)
370 amp alternator
(1)
400 amp alternator
(1)
Price
Filter
icon-X
Close menu
Select Vehicle
Select Vehicle
view all
Vehicle Make
Search
GMC
Infiniti
Vehicle Model
Search
All
G25
clear
Vehicle Year
Search
1970 1978
1974 1978
1975-1976
1975-1978
2011-2012
Vehicle Liter Engine
Search
2.5L
4.8L
5.7L
6.6L
7.4L
Amperage
250 amp alternator
(5)
320 amp alternator
(5)
370 amp alternator
(1)
400 amp alternator
(1)
Price
icon-filter
Select Vehicle
5 products
Sort
Sort
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
Sale
1970-1978 GMC G25 V8 5.7L 12si High Output Alternator
Regular price
$459.00
Sale price
from $359.00
Save $100.00
Sale
1974-1978 GMC G25 L6 4.8L 12si High Output Alternator
Regular price
$459.00
Sale price
from $359.00
Save $100.00
Sale
1975-1976 GMC G25 V8 7.4L 12si High Output Alternator
Regular price
$459.00
Sale price
from $359.00
Save $100.00
Sale
1975-1978 GMC G25 V8 6.6L 12si High Output Alternator
Regular price
$459.00
Sale price
from $359.00
Save $100.00
Sale
2011-2012 Infiniti G25 V6 2.5L High Output Alternator
Regular price
$509.00
Sale price
from $409.00
Save $100.00
icon-X
"Close (esc)"
icon-X
icon-chevron
icon-X
G25