Axles & Suspension
Axles, leaf springs, U bolts, spindles and suspension components.
Family Owned • Tucson, Arizona
The One Stop Trailer Shop.
For more than 60 years, Wheel Equipment Inc. has helped Southern Arizona customers find the right wheel and trailer parts—from brakes and suspension, to hitches, lighting, hubs, bearings and more.
Open Monday to Friday, 8:00 to 4:30. No online ordering. Call or come in.
- Since 1965 Family owned and operated
- 15,000 sq. ft. Tucson warehouse
- 18,000+ items Stocked for your trailer needs
About Wheel Equipment
Started behind a house. Still run by the family.
In 1965, Mike Sr. started Wheel Equipment Inc. out of a small warehouse behind his house. We have moved twice since then to make room for the wide variety of trailer and wheel parts our customers need.
The warehouse got bigger, but we kept the small, local way of doing business. Everyone who walks in is treated like family. Mike Sr.’s sons run the company, and his grandson is our General Manager.
Our associates know how to keep trailer running gear in top shape. Parts supply has been uneven across every industry, and we work with our vendors to get items in stock as soon as possible. Whatever the availability, we will keep you informed.
Our Tucson warehouse is 15,000 square feet and stocked with more than 18,000 items for landscape, flatbed, boat, horse, and travel trailers.
60+ Years serving Tucson
You’re not just another customer passing through a corporate location. We’re a local team that knows trailer running gear and takes the time to help you find the right part.
Products We Sell
Find the parts you need.
From everyday replacements to hard to find trailer components, our Tucson warehouse stocks thousands of parts. Not sure what you need? Our team can help you find it.
Hubs, Bearings & Brakes
Hubs, drums, bearings, seals, electric brakes and hydraulic brake parts.
Hitches & Towing
Hitches, ball mounts, trailer balls, couplers, pintle hooks and hitch locks.
Wheels & Tires
Trailer tires, wheels, lug wrenches, tire repair tools and related hardware.
Lights & Electrical
Tail lights, clearance lights, wiring supplies, connectors and wire ties.
Jacks & Hardware
Trailer tongue jacks, grease caps, oil caps, nuts, washers and other essentials.
Frequently Asked Questions
Trailer parts questions? Start here.
Finding the right trailer component often comes down to measurements, capacity and fit. These answers cover common questions, and our team is available when you need help identifying a specific part.
How do I choose the right axle for my trailer?
The right axle depends on factors including your trailer’s weight capacity, intended use, frame configuration, axle spacing and required ground clearance. Straight and drop axles serve different applications. Because axle fit and capacity are important to safe operation, bring your specifications, measurements or existing axle information to our team so we can help you identify the appropriate replacement.
What is the difference between a drop axle and a straight axle?
On a straight axle, the spindles are generally aligned with the axle tube. On a drop axle, the spindle position allows the trailer frame and deck to sit lower. A lower deck can make loading and unloading easier, while a straight axle may be selected when additional ground clearance is desired. Exact fit depends on the trailer and application.
Can I use trailer lights on a boat trailer?
Yes, but lights intended for marine use are the better choice for boat trailers because they are designed to handle repeated exposure to water and help reduce corrosion related problems. Check the light rating and wiring requirements for your application before installation.
How do I prevent rust and corrosion on trailer running gear?
Regular cleaning, dry storage when possible, routine inspection and appropriate protective coatings or lubricants can help reduce rust and corrosion. Components exposed to water, road salt or harsh conditions may need more frequent attention.
How do I measure the bolt pattern on my trailer hub?
The correct method depends on the number of wheel studs. Even numbered patterns can typically be measured from the center of one stud to the center of the stud directly opposite it. Five lug patterns are measured differently. If you are unsure, bring the hub, wheel, a clear photo or your measurements to our warehouse and we can help you identify the pattern.
What are electric and hydraulic trailer brakes?
Electric trailer brakes use an electrical signal from the tow vehicle and brake controller to activate the trailer brakes. Hydraulic systems use pressure created through a hydraulic actuator on the trailer. The correct braking components depend on the trailer, towing setup and application.
How do I troubleshoot trailer light problems?
Common causes include failed bulbs or light assemblies, damaged wiring, poor grounds, corroded connections and faulty plugs or connectors. Start with a visual inspection and test the electrical connection. If you are replacing components, our team can help you find compatible lights, wiring and related parts.
What are the main components of trailer running gear?
Trailer running gear commonly includes axles, suspension components, wheels, tires, hubs, bearings, seals, brakes and related mounting hardware. Wheel Equipment stocks many of these components and can help you identify what you need.
What kinds of trailers do you carry parts for?
We help customers find components for landscape, flatbed, utility and travel trailers, along with a wide range of wheel and trailer running gear applications. If you are unsure whether we carry what you need, call us at 520.889.3949.
What should I bring with me when looking for a replacement part?
Bring the old component when practical, along with any visible part numbers, manufacturer information, measurements and clear photos of the trailer or mounting location. For axles, hubs, wheels, bearings and brakes, accurate measurements and capacity information can be especially helpful.
Do you have the part I need in stock?
Our 15,000 square foot Tucson warehouse is stocked with more than 18,000 items. Inventory can change, so if you need a specific component, call 520.889.3949 before your visit and our team can help check availability.
Can you help me figure out which part I need?
Yes. Product knowledge and personal service are a big part of what we do. Our experienced staff can help narrow down compatible components based on the information you provide. For safety critical towing and running gear components, always confirm specifications and proper installation for your exact application.
What if a part is currently unavailable?
We work closely with our vendors on product availability and do our best to keep customers informed as inventory and supply conditions change.
Can I shop in person?
Absolutely. Visit Wheel Equipment at 3250 East President Street in Tucson to speak with our team and shop our warehouse inventory.
Visit Our Warehouse
Let’s find the part you need.
Stop by our Tucson warehouse and talk with a team that knows trailer equipment. We’ll help you navigate our inventory and find the right fit for your application.
- Phone
- (520) 889-3949
- Address
- 3250 East President Street
Tucson, AZ 85714 - Hours
- Monday to Friday: 8:00 to 4:30
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