Choose your trim in My Garage to confirm exact fit.
Filtered to exact-fit for your trim. Universal items are also shown.
Start with an intent — drill into any category for exact-fit picks.
Every category we carry for this vehicle, organized by system.
Find all the parts you need for common jobs on your 1981 Chevrolet K20.

Mobil 1 V-Twin 20W-50 Synthetic Motorcycle Oil (1 Quart)
Appearance & personalization
Fits any vehicle — oil, washes, waxes, and tools.
$18.28
$40.01
$21.48
$16.68
$11.84
$39.03
Everyday parts and care essentials — mats, covers, wipers, filters, and oils.
LUND
Part # 120110
$95.46

ANCO
Part # 97-16
$13.91

Standard Motor Products
Part # AV7
$27.66

Mobil 1
Part # 44925

Performance Tool
Part # W1
$29.43
Husky Liners
Part # 52011
$89.99

Denso
Part # EVB-16
$10.50

Pronto
Part # PA59
$9.82
$17.95