Browse our selection of quality engine wiring harness parts designed specifically for your GMC S15. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base · EL · Gypsy · High Sierra · Sierra Classic
Cab & Chassis · Extended Cab Pickup · Standard Cab Pickup
L4 1.9L · L4 2.2L · L4 2.5L · V6 2.8L · V6 4.3L
Automatic · Manual
