Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 20878369 Horn is available in the market under the name GM Horn. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 20878369 Horn fits certain Cadillac DTS models, as well as Buick Lucerne models.
The original GM component designated by manufacturer part number 20878369 maintains top performance when functioning as the Horn Assembly-A Note & F Note unit. The component 20878369 is constructed from durable material and its dimensions span 9.9 x 5.5 x 5.4 inches while weighing 1.80 Pounds. The component is ready in New condition to ensure full compatibility with your vehicle system. The part 20878369 has available replacement options listed under 84501937. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
A proper installation of the GM 20878369 Horn ensures the optimal horn performance thus supporting vehicle safety and communication systems. Checking fuses is a regular part of GM component maintenance while testing horns requires direct connection of battery voltage to terminals and grounding to the component. The replacement procedure applies to broken horns but testing the horn connector at the horn switch activation indicates the need for further inspection. Check the ground connection first when voltage is detected and evaluate the relay along with its linked circuits when no voltage is present. The correct working condition of a horn leads to a power draw within the 4.5 to 5.5 amps range which can be adjusted through the horn screw. During installation of the GM 20878369 Horn users should focus on cleaning the ground point where the bracket attaches for maximum operational quality. Our website hosts a wide range of OEM components including the 20878369 for which we offer competitive prices to supply customers with high-quality products aligned to GM's factory standards. Your GM component receives both quick delivery and manufacturer parts warranty which ensures reliable performance together with great durability.





