Product Description
NGK TR5GP Platinum 3186 Spark Plugs – Set of 8
Fits 1997–2013 GM LS-Based 4.8L, 5.3L, 5.7L, 6.0L, 6.2L Engines
Get dependable ignition performance with NGK’s TR5GP G-Power Platinum spark plugs—an ideal stock-heat-range replacement for naturally aspirated GM LS engines. Built with a 98% pure copper core, .6mm fine-wire platinum center electrode, and OEM-grade construction, these plugs deliver strong ignitability, efficient combustion, and long service life. Not recommended for boosted, nitrous, or high-compression applications—use colder heat ranges like TR6, TR6GP, or BR7EF for those setups.
Key Features
- Premium Platinum Design: .6mm fine-wire platinum center electrode increases ignitability and reduces required firing voltage for smoother combustion.
- Factory Pre-Gapped: Comes pre-gapped at .040", ideal for most stock LS applications for easy plug-and-play installation.
- OEM-Grade Construction: Cold-rolled threads prevent cylinder head damage, while trivalent plating eliminates the need for anti-seize.
- Superior Heat Management: 98% pure copper core improves heat dissipation for reliable starts and reduced risk of overheating or pre-ignition.
- Engineered for Reliability: Tested to OEM performance standards with high-grade ceramic insulation and a trapezoidal ground electrode to minimize quenching.
Key Fitments
- Engines: LS1, LS6, LR4, LM7, L59, LM4, L33, LQ4, LQ9, L76, L92, L99, L94, L96 (1997–2013 GM LS-Based 4.8L, 5.3L, 5.7L, 6.0L, 6.2L engines).
- Platforms:
Chevrolet Silverado 1500/2500/3500 (1999–2013), Suburban (2000–2013), Tahoe (2000–2013), Avalanche (2002–2013), Trailblazer (2003–2009), SSR (2003–2006), Camaro (1998–2015), Corvette (1997–2013), Express 1500/2500/3500 (2003–2013);
GMC Sierra 1500/2500/3500 (1999–2013), Yukon (2000–2013), Yukon XL (2000–2013), Savana 1500/2500/3500 (2003–2013);
Cadillac Escalade (2002–2013), CTS-V (2004–2007);
Pontiac GTO (2004–2006), G8 (2008–2009), Firebird/Trans Am (1998–2002). - Notes: Set of 8 spark plugs. 14mm thread, 0.708" reach, 5/8" hex. Not suitable for boosted or high-compression performance builds—use NGK TR6, TR6GP, or BR7EF for those applications.
