VIAIR Corporation

Medium Duty OBA

For up to 33" Tires

150 PSI / 1.59 CFM P/N 10003

VIAIR’s Medium Duty Onboard Air System is a pre-packaged compressed air solution that provides a 33% duty cycle 325C compressor, 2.5 gallon air tank, and all components needed to
install basic vehicle-based pneumatics.

Please Note: Use thread sealant for proper installation.
Teflon tape is not recommended.
Properly sealed, recommended torque for 1/8" is 10 ~ 11 ft. lbs. Recommended torque for 1/4" and 3/8" is 12 ~ 15 ft. lbs.

tire inflation icon air locker icon air horn icon

Features:
- 2.5 Gallon VIAIR Air Tank
- 325C VIAIR Compressor
- Dash Panel Gauge with ON/OFF Switch
- Pressure Switch with Relay (110 PSI on, 145 PSI off)
- Reducer: 1/8” (F) to 1/4” (M)
- 1/4” Quick Connect Coupler (M)
- 1/4” 175 PSI Safety Valve
- 1/4” Drain Cock
- 20ft. 12-Gauge Wire with Inline Fuse Holder
- 4” Strip of Continuous Grommet Material
- Accessory Airline
- Electrical Connections

All Fittings are NPT rated unless otherwise noted.


- 12-Volt
- Permanent Magnetic Motor
- Duty Cycle: 33% @ 100 PSI
- Max. Working Pressure: 150 PSI
- Max. Amp Draw: 21 Amps
- Ingress Protection Rating: IP67

User Manual
Dimensional Drawings
Wiring Diagram
Plumbing Diagram

PSI CFM A BAR LPM A
0 1.59 14 0 45.0 14
10 1.40 16 1.0 37.6 16
20 1.24 16 2.0 34.1 18
30 1.20 18 3.0 32.3 18
40 1.17 18 4.0 29.1 20
50 1.08 19 5.0 26.0 21
60 1.01 20 6.0 23.7 21
70 0.93 21 7.0 21.5 21
80 0.87 21 8.0 19.7 21
90 0.82 21 9.0 18.0 21
100 0.77 21 10.0 16.5 21
110 0.72 21  
120 0.68 21  
130 0.64 21  
140 0.60 21  
150 0.57 21 * Supply Voltage: 13.8 Volts

2.5 Gallon Tank Fill Rate
0 to 145 PSI 4 min. 15 sec. (± 10 sec.)
110 to 145 PSI 1 min. 25 sec. (± 05 sec.)
31" x 10.5" Fill Rate
0 to 30 PSI 4 min. 40 sec. (± 10 sec.)
15 to 30 PSI 2 min. 30 sec. (± 05 sec.)
33" x 12.5" Fill Rate
0 to 30 PSI 6 min. 40 sec. (± 15 sec.)
15 to 30 PSI 3 min. 20 sec. (± 10 sec.)



 
WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.