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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1981 GMC G3500 Rally Custom.
Edelbrock
Part # 1711
$201.97
Edelbrock
Part # 12400
$13.95
FAST
Part # 307025
$135.21
Dorman
Part # 96020
$9.57
US Motor Works
Part # USMP50470
$36.23
Delphi
Part # MF0029
$46.76
Edelbrock
Part # 12401
$33.95
Spectra Premium
Part # ST24
$39.04
FAST
Part # 30350
$269.56
Fel-Pro
Part # 6579
$1.75
Edelbrock
Part # 35813
$3427.06
Spectra Premium
Part # ST13
$37.12
Edelbrock
Part # 35760
$2849.33
Edelbrock
Part # 3627
$235.53
Spectra Premium
Part # LO01
$8.26
US Motor Works
Part # USEP8004
$57.46
Baldwin Filters
Part # PF894-RV
$4.43
Dorman
Part # 578-013
$31.39
Edelbrock
Part # 1721
$195.70
Edelbrock
Part # 12403
$43.95
This page groups parts listed for the 1981 GMC G3500 Rally Custom. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.
We offer a wide selection of fuel injectors & pumps parts for the 1981 GMC G3500 Rally Custom. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.
We carry parts from trusted brands including Edelbrock, Spectra Premium, Dorman, Delphi, and FAST, plus many more. Filter by brand to find your preferred manufacturer.
Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.
Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.
