WABCO Air Compressor Parts
Looking for reliable, OEM WABCO air compressor parts? You’ve come to the right place. At Precision Transmission, we stock and support a full range of WABCO air compressors, rebuild kits, and replacement components for commercial trucks, trailers, and specialty vehicles.
Whether you’re dealing with low air pressure, a worn-out governor, or oil carryover issues, our team knows what to look for and how to get you back on the road fast — with genuine WABCO parts and expert support.
Inside Your WABCO Air Compressor
WABCO air compressor is the heart of your commercial vehicle’s air brake and air suspension systems. Without a properly working air compressor, your brake system fails, your suspension sags, and your vehicle becomes unsafe — or illegal — to operate.
WABCO, now part of ZF, has long been the industry leader in compressed air technology for heavy-duty and specialty vehicles. Their compressors are designed for:
Class 6–8 trucks
Trailers with air systems
Buses and coaches
Off-road and construction equipment
Emergency and military vehicles
Types of WABCO Air Compressors We Support
We provide parts and support for all major WABCO compressor types, including:
1. Single-Cylinder Compressors
Used in medium-duty trucks and some trailers. Typically simple and cost-effective but still critical to daily operation.
2. Twin-Cylinder Compressors
High-output compressors for heavy-duty applications. Common in Class 8 vehicles, long-haul fleets, and vocational trucks.
3. Water-Cooled Compressors
Designed for high-heat environments and continuous-duty applications. Popular in transit buses, military, and specialty rigs.
4. Oil-Free Compressors
Used in vehicles requiring extremely clean compressed air – including medical transport, food service, or environmentally sensitive zones.
Not sure what compressor you have? Just call or email us – we’ll help you ID it by part number or VIN.
WABCO Air Compressor Parts Available at Precision Transmission
WABCO Air Compressor Parts Available at Precision Transmission
Compressor Head Gaskets
Seals for high-pressure air chambers. We carry kits for all WABCO compressor models.
Crankshaft Kits & Bearings
Worn bearings lead to overheating and failure. We supply full crank kits for rebuilds or preventive service.
Unloader Valves & Governors
Control the cycling of your compressor. Faulty governors are a common cause of over-pressurization or low PSI faults.
Intake Filters & Screens
Protect internal components from contamination. Available in OEM-spec and extended-life variants.
Piston Rings & Seals
Ensure proper compression and airflow. If your compressor is passing oil, the rings are likely failing.
Full Rebuild Kits
All-in-one compressor rebuild kits to save time and reduce downtime. We also offer remanufactured WABCO compressors as an option.
Common Signs You Need to Replace WABCO Air Compressor Parts
Your WABCO air compressor is a critical component of your vehicle’s air system. When it starts to fail, the warning signs are usually clear — and ignoring them can lead to costly breakdowns or even safety violations.
Here are some of the most common indicators that your compressor needs attention or replacement parts:
- Low system air pressure – The most obvious sign. If your air pressure won’t build to the required PSI, it may be a failing piston, valve, or unloader.
- Compressor running continuously – If the compressor never cycles off, it could indicate a faulty governor or internal wear preventing it from building pressure efficiently.
- Oil in the air tanks – Oil carryover usually points to worn piston rings or a failed seal inside the compressor.
- Frequent air brake warning lights – Malfunctions in the air system will trigger alerts, especially in ABS or EBS-equipped vehicles.
- Whining or grinding noises – Any unusual noise coming from the compressor area may be a sign of worn bearings, misalignment, or internal damage.
- Moisture in the air lines – If your air dryer is working correctly but you’re still seeing condensation, it could be a compressor issue letting excess moisture into the system.
- Excessive heat or visible smoke – Overheating often stems from internal friction, lack of lubrication, or restricted airflow — all requiring immediate inspection.
If you notice any of these issues, it’s time to take action. Our team at Precision Transmission can help you identify the root cause and get the exact WABCO air compressor parts needed for a fast, effective repair. Whether it’s a simple governor swap or a full rebuild, we’ve got the knowledge and inventory to get you back on the road with confidence.
WABCO Air Compressor Diagnostics & Service
Need help figuring out what’s wrong with your compressor? We offer full diagnostic services, both in-house and on-site (in select regions).
Using WABCO TOOLBOX software and OEM procedures, we can:
Common Warning Signs:
- ull fault codes from ECUs and brake systems
- Perform pressure testing on-site
- Validate governor function and compressor cut-out range
- Test and inspect for oil bypass, overheat, or internal failure
If you’re local, bring your unit in. If you’re remote, we’ll guide you through it over the phone or via video.
WABCO Air Systems – More Than Just Compressors
Your air compressor is just one part of the larger WABCO ecosystem. We also carry:
- WABCO air dryers & filters
- Air tanks and valves
- ABS/EBS brake modules
- Air suspension components
- Trailer control systems
All systems work together — and failures in one area can affect others. Our team can help you spot underlying causes and prevent future breakdowns.
Contact Us for WABCO Air Compressor Parts Today
Need help now? We’re here. Whether you want to:
- Get a price
- Check inventory
- Diagnose a compressor issue
- Order a rebuild kit or part
- Talk with a WABCO-certified tech
We’ve got the knowledge, inventory, and commitment to keep your trucks — and your business — moving. Contact us today for expert service.