68G Diesel Glow Plug Set 8 Pcs Fit for 2017-2023 Chevy GMC L5P/L5D Duramax 6.6L 4500 5500 Trucks - Replaces OEM 12690238, 12725202, 12679959, GP124, 21135, 12666880

Is your Duramax diesel engine struggling with hard starts, rough idling, or excessive smoke in cold weather? Worn-out glow plugs are often the culprit. Our 68G Diesel Glow Plug Set is the professional-grade solution engineered to restore your truck's starting reliability and combustion efficiency to like-new condition. Replaces OEM Numbers: 12690238, 12725202, 12679959, GP124, 21135, 12666880. Engineered for Excellence & Perfect Fit This set provides a seamless, direct-fit replacement for the original glow plugs in your 2017-2023 Chevy Silverado 2500HD/3500HD or GMC Sierra 2500HD/3500HD equipped with the 6.6L L5P or L5D Duramax diesel engine, including chassis cab models (4500, 5500). Superior Construction for Demanding Conditions Every glow plug is manufactured using high-quality materials that resist heat, corrosion, and electrical stress. Package Includes: 8 x High-Performance 68G Glow Plugs.

• Precise Fit: This set of 8 glow plugs is engineered for a direct, hassle-free fit. It is specifically designed for 2017-2023 Chevy Silverado/GMC Sierra 2500HD/3500HD with the L5P or L5D Duramax 6.6L diesel engine, including 4500 and 5500 models.
• Direct Replacement: These glow plugs serve as perfect, high-quality alternatives to multiple OEM part numbers. They directly replace OE 12690238, 12725202, 12679959, GP124, 21135, and 12666880, ensuring optimal performance and fit identical to the factory original parts.
• Superior Material & Durable Construction: Made from premium-grade, corrosion-resistant metal alloy, these glow plugs are built to withstand extreme temperatures and high pressure within the combustion chamber. This ensures long-lasting reliability, consistent performance, and extended service life.
• Enhanced Cold Start Performance: The advanced heating element design ensures rapid heat-up and maintains stable, high temperatures. This provides faster, more reliable cold-weather engine starts on the first try, reduces white smoke on ignition, and promotes more complete fuel combustion for smoother idling and optimal engine performance.
• Easy Installation & Complete Kit: This is a complete 8-piece set that replaces all glow plugs in your Duramax engine. Designed for straightforward installation (professional installation is always recommended for best results), it comes ready to install to get your truck back in peak condition efficiently.