SBF 70 years logo
MenuMENU
SearchSEARCH

High-Lift Wheel Dolly Designed to Boost Vehicle Maintenance Safety

Stertil-Koni's WDA-500 is used for installing and removing the wheels on raised school buses and other heavy-duty vehicles.

November 26, 2018
High-Lift Wheel Dolly Designed to Boost Vehicle Maintenance Safety

Stertil-Koni's WDA-500 is designed for installing and removing the wheels on raised school buses and other heavy-duty vehicles.

2 min to read


Stertil-Koni's WDA-500 is designed for installing and removing the wheels on raised school buses and other heavy-duty vehicles.

STEVENSVILLE, Md. — Stertil-Koni has introduced the WDA-500 high-lift wheel dolly to enhance safety and performance in heavy-duty vehicle maintenance facilities.

With a lifting height of 28.23 inches, the wheel dolly offers efficiency and stable ergonomics when lifting disc brakes, brake drums, fuel tanks, tool boxes, calipers, and many other heavy-duty parts.

Ad Loading...

“First and foremost, wheel dollies are used for removal and installation of single and dual wheels on raised buses and trucks,” said Peter Bowers, technical sales support manager at Stertil-Koni.

Bowers added that the WDA-500 includes a telescopic crane arm option that turns the model into a universal lifting tool.

The WDA-500 model has a capacity of 1,100 pounds, allowing technicians to remove large wheels that often weigh up to 500 pounds each, according to Stertil-Koni. The crane arm, fitted with a 360-degree pivoting hook, swivels aside to allow wheel removal operations to be completed without straining the technician, according to the company.

“As with all Stertil-Koni high-lift wheel dolly models, it dramatically lowers the occurrence of back injuries and abdominal strain because work can be completed at an altitude which is higher than floor level and in line with a technician working in a full standing position,” Bowers said.

The WDA-500 can accommodate wheel sizes from 10.63 to 51.18 inches. The dolly stands 47.17 inches high with a width of 45.28 inches and length of 33.30 inches. The high-lift wheel dolly can also be used with mobile column lifts, platform, and in-ground lifts.

More Maintenance

zonar system image
SponsoredMay 1, 2026

What Data Shows About Student Transportation in 2026

Driver shortages, safety expectations, and staffing limits define student transportation in 2026. New survey data shows how fleet leaders are responding.

Read More →
Fleet manager reviews maintenance and performance data on dual computer monitors.
MaintenanceApril 27, 2026

How School Bus Fleets are Getting Ahead of Breakdowns

Don’t let bus downtime wear you down. Here’s how bus operators are shifting from manual processes to AI-powered, data-driven maintenance systems for improved reliability and safety.

Read More →
Matthews Bus Company maintenance team members stand in front of a yellow school bus, recognized by Pennsylvania State Police for fleet safety, cleanliness, and inspection performance.
Maintenanceby News/Media ReleaseApril 22, 2026

Pennsylvania School Bus Maintenance Team Praised for Dedication to Safety

Matthews Bus Company’s West Jefferson received a letter of commendation from the Pennsylvania State Police for their fleet inspections.

Read More →
Ad Loading...
zonar system image
SponsoredApril 20, 2026

2026 State of Student Transportation Report

Student transportation teams are being asked to do more with less, facing driver shortages, rising costs, and increasing safety expectations. This report uncovers how fleets are adapting, where technology is making the biggest impact, and why student ridership tracking is emerging as a top priority. Download the report to explore the key trends shaping 2026 and what they mean for your operation.

Read More →
Transfinder promotional graphic featuring “P.A.Y.S. – Pay As You Save” surrounded by icons of school transportation operations (bus, maps, calendar, clock, documents, and money), with tagline about saving time, money, and headaches in school transportation.
SponsoredApril 16, 2026

How Transfinder Technology P.A.Y.S. (Pays as You Save) Saving Time, Money and Headaches in School Transportation Operations

Transportation leaders say when their districts implemented Transfinder's AI enhanced logistics technology, it paid for itself in financial savings, time savings and operational headache reductions (OHR). In this white paper transportation experts share specific ways they have experienced how Transfinder P.A.Y.S. (Pay As You Save) off. Each, in their own way, said transportation technology is not simply a software purchase — it’s a strategic investment in operational efficiency, cost containment and staff satisfaction.

Read More →
Row of yellow school buses with overlay text reading “The essential guide to school bus fleet maintenance: Maximizing safety and uptime” and the Geotab logo.
SponsoredApril 1, 2026

Data-Driven School Bus Maintenance Guide

Stop reacting to engine lights and start predicting them. This guide reveals how transitioning from a "break-fix" model to a data-driven maintenance strategy can drastically reduce fleet downtime and protect your district's budget. Learn how to transform your garage operations from a cost center into a reliability powerhouse.

Read More →
Ad Loading...
Buyers Guide and Directory thumbnail
SponsoredMarch 13, 2026

2026 School Bus Fleet Vendor Directory & Buyer's Guide

Searching for the right equipment, technology, or services for your school transportation program? This industry guide brings together manufacturers and suppliers across the entire school bus market, all in one place. Download it to find the partners who can help move your operation forward.

Read More →
2026 School Bus Maintenance Survey thumbnail
SponsoredMarch 13, 2026

2026 School Bus Maintenance Survey

What top challenges are school bus maintenance teams facing in 2026? Explore new trends from School Bus Fleet’s annual maintenance survey covering fleet composition and age, fuel types, used vs. new purchasing patterns, technician pay and certifications, and the impact of the driver shortage. Survey sponsor: Dayton Parts.

Read More →
School Bus Maintenance in 2026: Costs, Tech & Workforce Gaps
MaintenanceMarch 13, 2026

2026 School Bus Maintenance Survey

What top challenges are school bus maintenance teams facing in 2026? Explore new trends from School Bus Fleet’s annual maintenance survey covering fleet composition and age, fuel types, used vs. new purchasing patterns, technician pay and certifications, and the impact of the driver shortage. Survey sponsor: Dayton Parts.

Read More →
Ad Loading...
A purple and white Fleetio graphic with text reading "Fleetio Introduces AI Service Advisor."
Maintenanceby Staff and News ReportsMarch 13, 2026

Fleetio Launches AI-Powered Maintenance Service Advisor

The company’s new AI tool helps fleet managers approve repairs faster, prioritize maintenance, and reduce shop time across high-volume fleets.

Read More →