{"product_id":"pynccid-ignition-coil-pack-for-5-3l-v8-chevy-gmc-red-8-pack-uf413-oe-fit-with-upgraded-copper-windings","title":"Pynccid ignition coil pack for 5.3L V8 Chevy\/GMC — Red 8‑Pack UF413, OE-fit with upgraded copper windings","description":"\u003cp\u003e\u003cstrong\u003ePynccidred set of eight UF413 square ignition coils replaces OE 12570616 to restore spark performance in 5.3L V8 Chevy and GMC trucks and SUVs from 2007 to 2011.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your 5.3L V8 Silverado, Avalanche, Tahoe, Suburban, Yukon or Sierra has rough idle, misfires, or a check-engine light related to ignition coils, this complete eight-coil package provides a direct, bolt-in replacement engineered for the same fit and firing sequence as the original equipment. The square UF413 design is specified for applicable GM engines and delivers stronger spark energy through German copper windings and durable materials to improve combustion stability under everyday driving and towing loads.\u003c\/p\u003e\n\n\u003ch3\u003eWill these coils physically fit my 200711 Chevy or GMC 5.3L V8?\u003c\/h3\u003e\n\n\u003cp\u003eThese Pynccid UF413 coils are manufactured to match OE dimensions and mounting points for part number 12570616, designed specifically for 200711 GM 5.3L V8 applications. They use the square UF413 footprint, not the round UF414, so verify coil shape on your engine before ordering.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect OE-style replacement for 12570616 and UF413-configured ignitions.\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play electrical connectors and bolt locations for DIY installation.\u003c\/li\u003e\n  \u003cli\u003eApplicable to Silverado 1500, Avalanche, Tahoe, Suburban, Yukon, Sierra models listed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these coils affect engine performance and reliability?\u003c\/h3\u003e\n\n\u003cp\u003eUpgraded windings and improved encapsulation give these coils more consistent discharge energy than many worn factory units, which can reduce misfires and improve throttle response. While not a horsepower guarantee, stronger, steadier sparks help the engine burn fuel more completely, particularly on engines showing signs of ignition-related degradation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGerman copper windings for stable, repeatable spark output under load.\u003c\/li\u003e\n  \u003cli\u003ePolyester rubber encapsulation resists heat and vibration for longer life.\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant terminals to preserve electrical contact quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and maintenance?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward: remove the old coils and bolt the Pynccid UF413 units into the same positions. For best results, lightly lubricate the rubber boots with silicone spray during reassembly to prevent cracking and ensure proper sealing between coil boot and spark plug.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSimple bolt-on swap with original connectors and mounting points.\u003c\/li\u003e\n  \u003cli\u003eUse silicone spray on boots to prevent future rubber degradation.\u003c\/li\u003e\n  \u003cli\u003eCheck torque specs and wiring condition during replacement to avoid new faults.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these coils durable enough for heavy use and varied climates?\u003c\/h3\u003e\n\n\u003cp\u003eThe Pynccid set is built for everyday and demanding driving, with materials chosen for resilience against heat, vibration and moisture. The combination of robust encapsulation and corrosion-resistant hardware helps maintain performance across seasons and load conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDurable construction to withstand towing and long-haul driving stresses.\u003c\/li\u003e\n  \u003cli\u003eSealed design reduces moisture intrusion and electrical leakage risk.\u003c\/li\u003e\n  \u003cli\u003eBacked by 1-year product quality support from Pynccid for peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: this red Pynccid UF413 coil set is aimed at owners and technicians of 200711 Chevy Silverado 1500, Avalanche, Tahoe, Suburban and GMC Yukon\/Sierra 5.3L V8 vehicles who need a full ignition coil replacement. It's the right choice if you want a direct OE-fit upgrade with improved spark consistency, straightforward installation for DIY mechanics, and a durable build for trucks and SUVs used for daily driving, towing, or seasonal demands. Confirm your engine uses square UF413 coils (not round UF414) before purchase to ensure correct fitment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these coils fit round UF414 plug towers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These are square UF413 coils; confirm your vehicle uses UF413 (12570616) before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this kit plug-and-play for 2009 Silverado 5.3L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the Pynccid set is designed as a direct OE-style replacement for compatible 200711 5.3L models and installs without modifications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pynccid","offers":[{"title":"Default Title","offer_id":48082325242014,"sku":"B0FH2YPZT8","price":159.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/pynccid-front-packaging-red-uf413-coils.jpg?v=1785810991","url":"https:\/\/northtrailauto.ca\/products\/pynccid-ignition-coil-pack-for-5-3l-v8-chevy-gmc-red-8-pack-uf413-oe-fit-with-upgraded-copper-windings","provider":"North Trail Auto","version":"1.0","type":"link"}