Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2018 GMC Yukon XL SLT.

Fel-Pro
Part # 55498
$22.72

Yukon Gear & Axle
Part # YGK2251
$1097.89

Fel-Pro
Part # MS97404
$9.96

J&L
Part # 3085D-C
$177.38


Dayco
Part # 5060715K1
$136.76


Bando
Part # 6PK1815
$24.79
aFe
Part # 46-71120A
$344.65

SCT Performance
Part # 4520
$7.31

Granatelli Motor Sports
Part # 28-1545S
$202.14

Nitrous Express
Part # 20936-05
$1060.29

Fel-Pro
Part # 73889
$0.82

Royal Purple
Part # 06320
$95.94

Rhino-Rack
Part # QMHD05
$24.99


NGK
Part # 90220
$11.94


Dee Zee
Part # DZ97960
$103.09


FTI Performance
Part # SRL86391-3
$1554.75


Mahle OE
Part # 42216CP
$89.33

Reinz
Part # 81-10588-00
$29.18


FTI Performance
Part # SRL80082-3
$1554.75


Cometic Gasket
Part # C15426-052
$125.73
This page groups parts listed for the 2018 GMC Yukon XL SLT. 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 engine & drivetrain parts for the 2018 GMC Yukon XL SLT. 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 Fel-Pro, Yukon Gear & Axle, Granatelli Motor Sports, COMP Cams, and FTI Performance, 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.