Frequently Asked Questions About Kenworth W900B/W900L Hub Adapters

Will these hub adapters fit my specific year and model Kenworth W900B or W900L?

Our hub adapters are designed to fit Kenworth W900B models from 1987-2010 and W900L models from 1987-present. However, compatibility can vary based on your specific wheel configuration and axle type. We recommend checking your current hub pilot diameter (typically 8.78" for most models) and stud pattern before ordering. If you're unsure, contact us with your VIN and we'll help verify the correct adapter for your truck.

What's the difference between aluminum and steel hub adapters, and which should I choose?

Aluminum adapters are lighter (typically 15-20 lbs less per set), resist corrosion better, and help reduce unsprung weight for improved ride quality. Steel adapters are more budget-friendly and offer superior strength for heavy-duty applications or severe service conditions. For most over-the-road applications, aluminum is preferred, while steel is often chosen for vocational trucks or extreme weight hauling.

Do I need special tools or professional installation for these hub adapters?

Installation requires basic hand tools including a torque wrench capable of 450-500 ft-lbs for proper wheel stud torquing. While many drivers successfully install these themselves, proper installation is critical for safety. You'll need to ensure correct centering, proper torque sequence, and re-torque after 50-100 miles. We provide detailed instructions with each adapter, but professional installation is recommended if you're not experienced with wheel-end service.

What thickness adapter do I need for my wheel setup?

Adapter thickness depends on your wheel offset and desired stance. Common thicknesses are 2", 3", and 4". Most customers switching from steel to aluminum wheels need 2" adapters, while those looking to achieve a wider stance typically choose 3" or 4". Measure from your hub face to where you want your wheel mounting surface to determine the correct thickness. Remember that adding adapters will affect your track width and may require fender modifications.

Are there any maintenance requirements or common issues with hub adapters?

Hub adapters require minimal maintenance but regular inspection is crucial. Check wheel stud torque every 3,000-5,000 miles and inspect for any cracks or unusual wear patterns during routine wheel service. Common issues include loose wheel studs from improper initial torquing and corrosion between the adapter and hub face on steel units. Using anti-seize compound during installation and maintaining proper torque prevents most problems. Quality adapters should last the life of your truck with proper care.