Product Description
Load Wheel
Frequently Asked Questions
Q: What does the XL designation mean for SU 377-XL and what equipment uses this wheel?
A: SU 377-XL designation indicates an extra-large or oversized load wheel compared to standard wheels. Verify the exact diameter and width specifications in your equipment documentation or contact parts support with your truck model and serial number. XL wheels typically provide higher load capacity or improved stability on certain truck configurations.
Q: Is SU 377-XL interchangeable with standard 5 x 3 wheels like SU 376?
A: No. Do not substitute SU 377-XL for SU 376 or vice versa. The XL designation indicates different overall dimensions or bore specifications. Installing the wrong wheel size will cause steering problems, uneven wear, and potential safety hazards. Always order the exact part number specified in your truck service manual.
Q: What maintenance reduces premature wear on SU 377-XL wheels?
A: Keep the axle bearings properly lubricated and free of debris. Check bearing play monthly, tighten any loose mounting bolts, and avoid overloading the truck beyond its rated capacity. Clean the wheel surface regularly to prevent material buildup that reduces rolling efficiency. Rotate or replace wheels when flat spots appear or rolling resistance increases.