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Choose your trim in My Garage to confirm exact fit.
Brakes, exhaust, wheels, and suspension fit differently on different trims. Universal parts (mats, wipers, covers) show either way.
Start with an intent — drill into any category for exact-fit picks.
Maintenance & repair
Every category we carry for this vehicle, organized by system.
Find all the parts you need for common jobs on your 1989 GMC R3500.
This page groups parts listed for the 1989 GMC R3500. 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.
The most popular categories for the 1989 GMC R3500 include Engine & Drivetrain, Wiring & Electrical, Cooling System, and Suspension & Steering. Browse our full selection to find the exact parts you need for your vehicle.
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.
Mobil 1 V-Twin 20W-50 Synthetic Motorcycle Oil (1 Quart)
Fits any vehicle — oil, washes, waxes, and tools.
$18.45
$24.20
$18.95
$9.49
$8.49
$3.86
$39.03
Everyday parts and care essentials — mats, covers, wipers, filters, and oils.
Husky Liners
$89.99
Trico
$8.24
Pronto
$9.15
Mobil 1
Performance Tool
$3.03
LUND
$389.91
Pronto
$3.21
Baldwin Filters
$22.24
$17.95
