This course provides a overview on the maintenance and care for mudflaps on tractors and trailers for carriers and drivers.
This course will take approximately 10 minutes to complete.
This course is mobile friendly. You can take it on your phone or on a computer. Select the cards below for tips on taking this course on your phone.
Mudflap is a flap that hangs behind the wheel of a vehicle. It is designed to prevent water, mud, and stones thrown up from the road from hitting the bodywork of the vehicle or any following vehicles.
To continue, check each box to confirm you have read each important key takeaway below.
General guidelines: To be on the safe side, it is recommended that your mud flaps don’t hang more than 6 inches from the ground.
Press the (+) icon to view more about rules and regulations.
Per FMCSA: Missing or defective mud flaps are considered a driving violation under eCFR 392.2
In Texas, Arizona, Delaware, and Missouri, your mudflaps should be no more than 8 inches from the ground.
If you’re driving through Alaska, your mudflaps only need to hang 14 inches from the surface of the ground.
Maryland requires that mudflaps extend from the truck to the ground the same length as the tire’s width. For example, if the tire is 12 inches wide, the mudflap should be 12 inches long.
While some states are more lenient, others have more strict guidelines. In Michigan, Oklahoma and Pennsylvania mudflaps must prevent debris from leaving the tire at a minimum 22.5-degree tangent angle.
Last but not least, New York law states that your mud flap can’t be more than 1/3 of the distance from where the bottom of the mud flap makes contact with the back wheel.
Missing Mudflaps
The most common issue with mud flaps is that they get pulled off of the tractor or trailer. It is required for Tractor and trailers to have mud flaps on at all times to prevent any injuries or issues.
Worn Down Mudflap
Another common issue is that mudflaps get worn down over time. Please see an example of worn down mudflap.
Incorrect Installation
Installing mudflaps too tight or too lose or using inadequate screws won’t protect trucks effectively.
Teaching how to visually inspect mudflaps for damage and wear.
To continue, check each box to confirm you have read each important key takeaway for visually inspecting mudflaps.
Explaining how to check if mudflaps are functioning as intended.
Press the (+) icon to view how to check mudflaps.
Use a measuring tape to check the distance between the bottom of the mudflap and the ground. Ensure it meets the legal requirements in your area.
Confirm that the mudflap is at the appropriate angle to effectively deflect debris away from other vehicles. Again, refer to your truck’s manual for guidance.
Gently push the mudflap to check its flexibility. It should have some give but not be overly loose.
Stand back and visually inspect the mudflap while considering the coverage it provides. Make sure it adequately protects against debris and splashing.
If your mudflaps have anti-sail brackets (to prevent flapping at high speeds), ensure they are functioning correctly.
Verify that the mudflap is securely mounted to the truck and that all brackets and fasteners are in place.
Take notes on the functional check results. If you notice any issues that affect the mudflap’s performance, these should be addressed promptly.
Tips for selecting the appropriate mudflaps for different conditions.
Advice on cleaning and maintaining mudflaps to extend their lifespan.
Press the arrow or numbers below to learn about cleaning and maintaining mudflaps.
Practices that prolong the longevity of mudflaps.
How often should I inspect my mudflaps?
What are anti-sail brackets, and do I need them on my mudflaps?
How can I find out the specific mudflap regulations in my area?
Contact local transportation authorities or refer to your region’s traffic regulations. Online resources and forums for truckers can also provide valuable insights.
Can I replace mudflaps myself, or should I have a professional do it?
If you’re comfortable with basic maintenance tasks and have the necessary tools, you can replace mudflaps yourself. However, if you’re unsure, it’s always a good idea to seek professional assistance.
Are there eco-friendly mudflap options available?
Yes, some mudflaps are made from recycled materials or designed to be more environmentally friendly. Check with manufacturers for eco-conscious options.