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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1991 GMC K1500 Sierra SLX.
Dee Zee
Part # DZ95062
$27.60
Anzo
Part # 511068
$113.15
Putco
Part # 231157R-360
$60.11
Hella
Part # 9005TB
$20.15
Hella
Part # 9006SB
$16.93
Putco
Part # 341157A-360
$115.12
Hella
Part # 9005SB
$16.93
Hella
Part # 9006TB
$20.15
Hella
Part # 1156
$13.17
Hella
Part # H3P50
$15.07
Putco
Part # 241157S-360
$79.82
Hella
Part # H3
$2.14
Hella
Part # 9006LL
$17.56
Hella
Part # H3P50TB
$18.07
Hella
Part # H3SB
$3.23
Anzo
Part # 511032
$39.32
Hella
Part # 9006
$3.62
Putco
Part # C1157A
$33.99
Hella
Part # 9005 100WTB
$21.34
Putco
Part # HC1157R
$45.99
This page groups parts listed for the 1991 GMC K1500 Sierra SLX. 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 lighting & electrical parts for the 1991 GMC K1500 Sierra SLX. 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 Hella, Putco, Anzo, Dee Zee, and BackRack, 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.
