Ozikutech Iridium Spark Plugs 8-Pack for GM V8 (Direct-Fit, 0.04" Pre-Gapped)

These Ozikutech iridium spark plugs are an 8-piece set designed to replace OEM part numbers like 41-110, 41-162, 41-985 and fit many GM V8 engines for reliable ignition and long service life.

If you own a Chevy, GMC, Cadillac, Buick, Pontiac or Hummer with an LS-series or compatible V8, these spark plugs offer a direct-fit aftermarket alternative engineered to the same service fitment as several original equipment references. Built with a fine iridium center electrode and a 0.04" (1 mm) pre-gap, the plugs aim to deliver stable spark performance across a wide range of model years and displacements.

Which vehicles and engines will accept these plugs?

These plugs are specified to replace multiple OEM numbers and are intended for many GM V8 applications across Chevrolet, GMC, Cadillac, Buick, Pontiac and Hummer lines. They cover common LS-family motors and other V8s listed by year and displacement for direct compatibility.

• Chevrolet: Silverado, Suburban, Tahoe, Corvette (C5/C6), Camaro, Avalanche, Express, Impala, Colorado and more across model years noted.
• GMC: Sierra, Yukon, Canyon, Savana and other compatible models across 2000–2018 ranges.
• Cadillac/Buick/Pontiac/Hummer: Escalade series, CTS, Rainier, LaCrosse, Firebird, GTO, Grand Prix and H2/H3 where listed.
• Replaces OEM references including 41-110, 41-162, 41-985, 9602, 19417055, 12621258 and others for LS1/LS2/LS3/LS6/L99 platforms.

How do these iridium plugs affect ignition and longevity?

Iridium is used for the fine center electrode to provide a concentrated spark with good wear resistance. That finer electrode typically means more consistent spark timing over many miles compared with standard copper plugs, which helps maintain stable combustion characteristics as the plug ages.

• Fine iridium tip reduces electrode erosion under normal operating conditions.
• Pre-set 0.04" (1 mm) gap ensures consistent spark gap out of the box for compatible engines.
• Designed for longer replacement intervals than conventional plugs when used in recommended applications.

What should I know about installation and maintenance?

Installation follows standard spark plug service procedures: thread into cylinder head, torque to manufacturer specs, and reconnect ignition coil or wire. Because these plugs are pre-gapped and designed for direct replacement, they reduce setup time, but always verify torque and clearance per the vehicle’s service manual.

• Pre-gapped to 0.04" (1 mm); verify gap before installation if engine-specific adjustments are required.
• Use a torque wrench and anti-seize only if recommended by your service guide to prevent over-tightening.
• Replace in sets for multi-cylinder engines to ensure consistent performance across all cylinders.

Will these plugs match OEM fitment and part numbers?

Yes — Ozikutech lists these plugs as replacements for multiple OEM numbers used across GM V8 engines. They are intended as aftermarket equivalents that fit the same thread size and heat range specifications as the referenced original parts.

• Matches common OEM replacement numbers for LS-series and related V8 engines.
• Sold as an 8-pack to serve complete V8 cylinder banks without needing additional purchases.
• Intended to be plug-and-play for listed model/year combinations; cross-check OEM part numbers when in doubt.

Who is this for? These Ozikutech iridium plugs are aimed at owners and technicians working on GM V8 vehicles who want a complete eight-plug kit that matches many OEM part numbers and offers the wear resistance of an iridium electrode. They suit routine maintenance, engine tune-ups and owners seeking a cost-effective aftermarket alternative that arrives pre-gapped for quicker installation. If you service Silverado, Sierra, Suburban, Tahoe, Corvette, Camaro, Escalade or similar models within the listed years and engine sizes, this set is built to fit and replace the cited OEM references.