The Chevy Tahoe and Suburban are full-size SUVs that haul families and tow trailers. Their 5.3L and 6.2L V8 engines need quality spark plugs to maintain the power and efficiency that owners expect.
5.3L EcoTec3 V8
The 5.3L is the workhorse of the Tahoe/Suburban lineup. ACDelco Professional Iridium plugs are GM's OEM choice and provide excellent service life. NGK Iridium IX plugs are a popular alternative with similar performance characteristics.
6.2L EcoTec3 V8
The top-shelf 6.2L deserves premium plugs. ACDelco OEM iridium plugs or NGK Iridium IX keep this engine making its full 420 hp. Service interval is 100,000 miles with OEM iridium.
Active Fuel Management (AFM) Considerations
Tahoe and Suburban engines with AFM (cylinder deactivation) are somewhat prone to carbon buildup on plugs in deactivated cylinders. Inspecting plugs at 60,000 miles — even if rated for 100,000 — is a smart practice on AFM-equipped engines.
Find your Tahoe or Suburban plugs at Texan Supply with free shipping.