【 Square Ignition Coil Set】Unlike round ignition coils, UF271 models have a square shape, often providing a better fit and potentially improved performance in specific vehicle applicationThese coils are designed to generate the necessary high voltage to ensure efficient and reliable ignition.
【Durability】UF271 Square Ignition Coils Pack is made of advanced technology that optimizes ignition efficiency. Spark wires set use silicone material, which can make the firewire more resistant to high temperatures( -40℃~+200℃).Spark plug wire is 8mm thick with 2-end sheath, which can make the firewire more safe & durable. They are typically constructed from materials that can withstand the harsh conditions of an engine compartment, including heat, vibration, and moisture.
【Replaces Part Number】 Ignition Coil Replace Part Number:12556893, 12558693, 12570553, 3859078, 392889925, D581, uf-271, 38590782.Spark Plugs Replace Part Number:41-962, 19299585. Wires Replace Part Number:M8-48322R, 9059, 9748HH, 9748UU, 9748RR, 88862385, 748UU, 12622553, 12656210.Please carefully compare the pictures or OE numbers to match your original parts before purchasing the product.
【Compatible with】 Controls the heating, ventilation, and air conditioning (HVAC) system in select Chevrolet and GMC vehicles.Compatible with Avalanche 2002-2006; Compatible with Express 2003-2006; Compatible with Monte Carlo 2006; Compatible with Silverado 1999-2007; Compatible with Silverado 1999-2007; Compatible with Sonora 2003-2004; Compatible with SSR 2003-2004;Compatible withTrailblazer 2003-2004; Compatible with Trailblazer 2003-2004 4.8L, 5.3L, 6.0L, 8.1L vehicles; Compatible with Suburban 2000-2006; Compatible with Tahoe 2000-2006; Compatible withTrailblazer 2003-2004; Compatible with Trailblazer 2003-2004
【Fix symptoms】Check for Diagnostic Codes: Use an OBD-II scanner to check for any engine codes related to misfires or ignition system issues; Inspect the Coils: Visually inspect the coils for signs of damage, such as cracks, corrosion, or loose connections;Test the Coils: If necessary, use a multimeter to test the resistance of the coil to determine if it's functioning properly.