Best Spark Plugs for Pickup Trucks: A Complete Buying Guide

Pickup trucks face unique demands — heavy towing, high-load acceleration, and often extreme temperatures. Here's a comprehensive guide to the best spark plugs for America's most popular vehicle category.

Why Trucks Need Quality Spark Plugs

Under tow load, cylinder pressures spike significantly. The ignition system has to fire reliably under high compression at moments of maximum demand. Weak or worn plugs misfire under load — the worst possible time for an engine stumble when you're merging on the highway with a loaded trailer.

Ford F-150: Motorcraft or NGK

For EcoBoost: Motorcraft SP-520 (2.3L) or SP-546 (3.5L). For Coyote V8: Motorcraft SP-515 or NGK Iridium IX equivalent.

Chevy Silverado / GMC Sierra: ACDelco

ACDelco Professional Iridium for all EcoTec3 engines (4.3L V6, 5.3L V8, 6.2L V8). 100,000-mile service interval on most applications.

Ram 1500: Champion or NGK

3.6L Pentastar: NGK Iridium IX or Champion Iridium. 5.7L HEMI: Champion Iridium (16 plugs). Note the HEMI uses 2 plugs per cylinder.

Toyota Tacoma / Tundra: NGK

NGK Laser Iridium for 3.5L V6 and 3.4L V6 TRD applications. NGK Iridium IX for older 4.0L V6.

Replace All Plugs at Once

Always replace the full set — not just the one that failed. If one plug wore out, the others aren't far behind. Doing half now and half later wastes labor time and leaves the engine unbalanced.

Shop truck spark plugs at Texan Supply with free shipping.