TIREBOSS Parts & Service Guide: Compatible Parts, Valves and Manuals
Last updated: October 21, 2026 · By Scott McCauley, Owner, AirDown
Key takeaway
Short answer: You can buy TIREBOSS parts from TIREBOSS or its dealers, or buy compatible replacement parts from AirDown. AirDown sells parts that fit TIREBOSS systems at published prices, and AirDown parts cost about 30% less than TIREBOSS parts. TIREBOSS posts its own service and parts manuals on its website.
If your fleet runs TIREBOSS, a truck waiting on a part is a truck that isn’t working. This guide is for TIREBOSS owners and shop managers: where to find TIREBOSS parts, which compatible parts AirDown stocks and what they cost, where TIREBOSS keeps its service manual, what valve upkeep to plan for, and how to decide between repairing a TIREBOSS system and replacing it. For the full system-to-system comparison, see AirDown vs. TIREBOSS: The Complete 2026 Comparison.
AirDown at a Glance
- AirDown parts cost about 30% less than TIREBOSS parts, and AirDown sells parts that fit TIREBOSS systems.
- AirDown is a U.S.-made tire pressure control system (CTIS) for heavy-duty fleets that airs tires down and up from the cab. AirDown costs $7,495, the same price nationwide.
- AirUp, the air-up-only system, keeps waste hauler tires inflated even with 20+ nails in a tire. AirUp costs $3,995 nationwide.
- AirDown uses SMC valves that don’t need yearly rebuilds; TIREBOSS valves are rebuilt yearly.
- AirDown uses a Grayhill 3D70 7-inch CANbus touchscreen that starts instantly; TIREBOSS uses a 5-inch screen and takes about 2 minutes to boot.
- TIREBOSS, based in Edmonton, Alberta, typically costs $8,500 to $12,000 depending on region (pre-tariff pricing).
- AirDown is U.S.-made and not exposed to cross-border tariffs.
Where Can You Buy TIREBOSS Parts?
You have two routes. You can order genuine parts through TIREBOSS or its dealers; TIREBOSS lists its contact details on its service page. Or you can buy compatible replacement parts from AirDown. AirDown sells parts that fit TIREBOSS systems, and AirDown parts cost about 30% less than TIREBOSS parts. Our prices are published on each product page, so you can see the cost before you call.
Mixed fleets use both routes: they keep existing TIREBOSS trucks running on lower-cost compatible parts while they decide what goes on new trucks.
Which TIREBOSS-Compatible Parts Does AirDown Sell?
These parts are in the AirDown parts store today. Each name links to its product page.
| TIREBOSS-compatible part from AirDown | TIREBOSS part number it replaces | AirDown price |
|---|---|---|
| TB Airline Hanger | — | $475.36 |
| TB Inflate/Deflate Solenoid | — | $89.32 |
| Tireboss Rockwell Drive Axle Manifold | — | $75.00 |
| TB 225-2103 | — | $13.00 |
Before you order, match the part number on the old part or in the TIREBOSS parts manual. If you’re not sure, call 877-623-8473 with the part number and a photo and we’ll tell you whether we have it.
Where Is the TIREBOSS Service Manual?
TIREBOSS publishes its own technical documents. The TIREBOSS 2 technical information page links to the service manual, parts manual, service bulletins, valve and wheel service videos, and truck and trailer installation checklists. TIREBOSS also has a separate page for the original TIREBOSS 1. We link to TIREBOSS’s documents instead of copying them, so you always get the current version.
Keep the parts manual handy when you order from anyone. It’s the fastest way to confirm the part number and avoid ordering the wrong part.
What Valve Upkeep Should a TIREBOSS Owner Plan For?
TIREBOSS valves are rebuilt yearly. Put that service on the shop calendar for every TIREBOSS truck, budget for the parts and labor, and plan around the time the truck is out of service. For what a wheel-end valve job involves, read CTIS Wheel-End Valve Service: What It Really Takes.
AirDown uses SMC valves that don’t need yearly rebuilds. That difference is one of the biggest ownership costs to compare when a truck comes up for a new system.
Should You Repair Your TIREBOSS System or Switch?
If a TIREBOSS system works and parts are easy to get, repairing it is usually the cheaper choice for that truck. Switching makes more sense when:
- You’re spec’ing new trucks and choosing a system anyway.
- Yearly valve rebuilds are costing you shop time and truck time.
- Drivers wait on a 5-inch screen that takes about 2 minutes to boot, and you want a 7-inch touchscreen that starts instantly.
- You want one U.S.-made system with one price nationwide: AirDown $7,495, or AirUp $3,995 for trucks that only need to stay inflated.
To run the numbers, use the payback worksheet in our cost guide or ask us for a written quote. New to CTIS? Start with What Is a Central Tire Inflation System (CTIS)?
How Do AirDown and TIREBOSS Compare?
| AirDown | TIREBOSS | |
|---|---|---|
| Air down | Yes, from the cab | Yes |
| Air up | Yes, from the cab | Yes |
| Screen | Grayhill 3D70 7-inch CANbus touchscreen | 5-inch screen |
| Boot time | Starts instantly | About 2 minutes |
| Valve service | SMC valves, no yearly rebuild | Valves rebuilt yearly |
| Parts price | About 30% less than TIREBOSS; also sells parts that fit TIREBOSS | Baseline |
| Made in | U.S.-made; not exposed to cross-border tariffs | Edmonton, Alberta-based company |
| System price | $7,495 nationwide (AirUp: $3,995) | $8,500 to $12,000 by region (pre-tariff) |
TIREBOSS brings decades of field history, and its current TIREBOSS 2 is described on its product page. Our side-by-side, with the controller details, is in AirDown vs. TIREBOSS and CTIS Controller and Display Compared.
What Do TIREBOSS Owners Ask About Parts and Service?
Where can I buy TIREBOSS replacement parts?
You can buy them from TIREBOSS or its dealers, or buy compatible parts from AirDown. AirDown sells parts that fit TIREBOSS systems, with prices published online, and AirDown parts cost about 30% less than TIREBOSS parts. Call 877-623-8473 with your TIREBOSS part number to check what we stock.
Where is the TIREBOSS service manual?
TIREBOSS posts its TIREBOSS 2 service manual, parts manual, service bulletins and installation checklists on the TIREBOSS 2 technical information page at tireboss.com. We link to it rather than copy it, so you always get TIREBOSS’s latest version.
Do AirDown parts work on a TIREBOSS system?
AirDown sells parts that fit TIREBOSS systems, including a TIREBOSS airline hanger, an inflate/deflate solenoid and a Rockwell drive axle manifold. Match your part number before you order; if you’re not sure, call us with the part number and a photo.
How often do TIREBOSS valves need to be rebuilt?
TIREBOSS valves are rebuilt yearly. AirDown uses SMC valves that don’t need yearly rebuilds. If you run TIREBOSS today, plan the yearly valve service into your shop schedule and parts budget.
Should I replace my TIREBOSS system or keep repairing it?
If the system works and parts are easy to get, repairing it is usually the cheaper choice for that truck. Many fleets keep existing TIREBOSS trucks running on compatible AirDown parts and put AirDown on new trucks. AirDown costs $7,495 nationwide, against a typical $8,500 to $12,000 for TIREBOSS depending on region (pre-tariff pricing).
Bottom line
You don’t have to replace a TIREBOSS system to keep it running. AirDown sells parts that fit TIREBOSS systems at published prices, about 30% less than TIREBOSS parts, and TIREBOSS posts its service and parts manuals online. When it’s time for a new system, AirDown costs $7,495 nationwide and its SMC valves don’t need yearly rebuilds. Call 877-623-8473 with your part number.
What Sources Did We Use?
- TIREBOSS, TIREBOSS 2 technical information (service manual, parts manual, bulletins): tireboss.com/service/tireboss-2 (accessed October 21, 2026)
- TIREBOSS, service and contact information: tireboss.com/service (accessed October 21, 2026)
- AirDown parts store product pages and prices (accessed October 21, 2026)
- AirDown and TIREBOSS pricing and specifications: AirDown, October 2026. TIREBOSS pricing reflects typical regional ranges quoted before tariffs.
Prices are as of October 2026 and can change; the product page shows the current price. Always confirm part numbers against your system’s parts manual. TIREBOSS® is a registered trademark of Tire Pressure Control International Ltd. AirDown is not affiliated with Tire Pressure Control International Ltd., and AirDown parts are not genuine TIREBOSS parts. Grayhill is a trademark of Grayhill, Inc.
Need a part today?
AirDown sells parts that fit TIREBOSS systems at about 30% less, with prices published online.
Call 877-623-8473 with your TIREBOSS part number, or send us a message.