AC Compressors & Mounting Kits
A compressor that doesn't line up with the engine's bracket, belt path, or pulley offset isn't a replacement part. It's a second repair order. O2 Cool Manufacturing supplies AC compressors and mounting kits for commercial buses, emergency vehicles, RVs, and off-road equipment, matched so the compressor, bracket, and drive components go on together the first time.
Fleet shops and upfitters come to O2 Cool for three things: a complete AC compressor kit, a mounting kit for a compressor already on the shelf, or a compressor and bracket package for a new HVAC build. For individual compressor models and series, see our automotive HVAC compressors page.
Compressor Mounting Kits
The mounting kit holds the compressor in line with the crankshaft pulley and carries the torque and vibration the compressor puts into the engine block. When that alignment is off by even a small amount, the belt wears unevenly, the clutch bearing takes side load it wasn't designed for, and the compressor fails early. A bracket that fits the engine is what protects the compressor investment.
A mounting kit typically includes the bracket and the hardware to fasten it, and depending on the engine and compressor pairing it may also include idler pulleys, a belt tensioner, or spacers.
Complete AC Compressor Kits
Sourcing the compressor and mounting kit together removes the step where a technician has to confirm that a bracket from one supplier fits a compressor from another. One quote covers the full package, and O2 Cool's team checks compressor displacement, mounting pattern, and clutch pulley groove against the engine before anything ships. That matters most on a repower, a compressor model change, or a new build where no original bracket exists to copy.
Commercial Vehicle AC Compressors by Application
Each vehicle class puts a different load on the compressor and its mount, and O2 Cool's commercial vehicle AC compressors are matched to how the vehicle actually runs:
- Commercial buses: Long daily duty cycles and large passenger cabins keep the compressor engaged for hours at a time.
- Emergency vehicles: Extended idle time on scene means the compressor has to cool a patient compartment or crew cab at low engine speed.
- Recreational vehicles: Motorcoaches and Sprinter van conversions often need compressor and bracket combinations that fit tight engine bays.
- Off-road equipment: Dust, shock loads, and constant vibration make bracket strength and fastener retention the first concern.
Industries served
We put our extensive experience to work for you, constantly innovating to provide the best possible solutions to fit the specs of any school bus.
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At O2 COOL, we're dedicated to providing optimal ambulance HVAC solutions specifically designed for the unique needs of first responders and their patients.
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Our climate control systems are built to meet the demanding needs of firefighters, ensuring reliable operation in the toughest conditions.
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Our R&D and testing capabilities, coupled with our flexibility and responsiveness to customers’ needs, have solidified O2 COOL as a provider of HVAC solutions to the limousine industry for over 50 years.
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We specialize in the design, manufacturing and installation of tour bus & luxury coach climate control systems to spec, and creating OEM solutions through our in-house Engineering, Manufacturing and Research & Development teams.
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From four decades of experience and industry knowledge, O2 COOL can design and customize HVAC systems to meet any application or climate demands, for conventional and alternative fuel vehicles.
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O2 COOL specializes in designing and manufacturing custom cooling systems for utility vehicles, providing solutions tailored to meet the unique needs of each application
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We bring solutions to both the private sector and the government as a supplier of HVAC and engine temperature control products and systems in the delivery van market segment.
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At O2 COOL, we understand that in a military vehicle, reliable climate control is essential for ensuring optimal performance in demanding conditions.
Learn MoreGetting the Right Fit
Send the engine make, model, and year, the compressor model if one is already specified, and a photo of the existing bracket or engine bay. O2 Cool's engineering team in Decatur, Texas confirms fitment before the quote goes out and can build to a customer specification when a standard kit doesn't fit the application. O2 Cool is Build America, Buy America certified, which matters for transit agencies and public fleets buying under federal funding rules.
Why Choose O2 Cool?
Focus on Safety and Comfort
Innovative and Energy-Efficient Solutions
Reliable, Durable, High-Quality Products
Build America, Buy America Certified
Additional Benefits
- Partnerships with Local Universities for Innovative Technologies
- Mission to Exceed Customer Expectations
- Focus on Vehicle Types, Including Public Transit, School Buses, and Emergency Vehicles
- Commitment to Sustainability and Environmental Responsibility
- Customization Options for Individual Customers
- Exceptional Warranty and Customer Support Services
Frequently Asked Questions
Do I need a new mounting kit when I replace the compressor?
Not always. If the replacement is the same compressor model and the existing bracket is straight and uncracked, the original mount can usually be reused. A new mounting kit is needed when the compressor model or mounting pattern changes, when the bracket shows cracks or elongated bolt holes, or on a new build or repower.
Can O2 Cool supply the compressor and mounting kit together?
Yes. O2 Cool supplies both OEM compressors and A/C compressor mounting kits, and can quote them together as a complete AC compressor kit so fitment is confirmed on the full package before it ships.
Which vehicles do your commercial vehicle AC compressors fit?
O2 Cool supplies compressors and mounting kits for commercial buses, ambulances and fire trucks, utility and delivery vehicles, military vehicles, RVs, and off-road equipment. Send the engine make, model, and year to confirm the right compressor and kit for a specific vehicle.