Frequently Asked Questions
How does the Kustom Fan Shroud Extension Ring differ from the stock Paccar rubber boot system?
The Kustom Fan Shroud Extension Ring mounts directly to the cooling package instead of the Paccar boot system that mounts off the engine. The upgraded mounting design of the extension ring improves airflow efficiency by directing more air through the radiator core instead of allowing it to escape around the shroud. This increases cooling performance, helping your engine maintain stable temperatures under heavy loads or hot conditions.
What truck models and years is the extension ring compatible with?
Our extension rings are designed to fit any 2008 or newer Peterbilt or Kenworth truck. Other truck makes and models may also fit depending on the style of molded fan shroud used on the existing cooling package. Contact Kustom Truck Parts to verify fitment.
Can I install the extension ring myself, or should I have a professional handle it?
Installation is straightforward and can be handled by most truck owners with basic tools. However, professional installation is recommended if your cooling system has been modified.
Does installing the extension ring affect the warranty or future service on my truck's cooling or engine system?
No, the extension ring is a non-invasive upgrade that doesn't alter factory systems. It enhances airflow without voiding warranties or affecting normal maintenance schedules.