Air-Zenith OB3 Black Air Compressor
MORE AIR, LESS WORRY
The Air-Zenith OB3 takes performance and durability to a new level. It builds on the success of the OB2 with stronger internal components, higher output, and better reliability. The OB3 delivers 4.5 CFM at 200 PSI with a 100% duty cycle, giving you constant, dependable airflow.
Its upgraded design includes a German-engineered wedge-locking bolt system. This prevents the internal piston and counterweight from loosening, a feature trusted in high-speed rail and subway systems.
Installation is simple with pre-wired connections for power, ground, and trigger. The OB3 includes a 60A relay plugged into a harness that’s prewired into the compressor’s leads. This setup makes it easy to swap or replace the relay if needed. The oil-free design reduces maintenance while the weatherproof air filter and waterproof cooling fan provide extra protection in harsh conditions.
- High Performance: 4.5 CFM at 200 PSI with 100% duty cycle.
- Built for Durability: The wedge-locking bolt system prevents the loosening of internal components.
- Simple Setup: Pre-wired 60A relay with a plug-and-play harness for easy swaps.
- Low Maintenance: Oil-free design with a PTFE piston ring for long service life.
- Versatile Mounting: 3-position brackets with NYLOCK self-locking hardware.
- Extra Protection: Waterproof cooling fan and weatherproof air filter.
**Attention: To maintain the integrity of your Air Zenith OB3 Black Air Compressor, ensure it is installed in an area protected from weather exposure. This model is not built to withstand direct exposure to the elements.**
- Air Zenith OB3 Black Air Compressor
- Braided Leader Hose & Check Valve
- Air-Zenith 80 Amp Relay
- Mounting Hardware
| Part Number | AC-OB3K |
| IP Rating | IP65 |
| Voltage | 12 Volts DC |
| Max Amperage | 33 Amps |
| Maximum Duty Cycle | 100% @ 100 PSI |
| Maximum Pressure | 200 PSI |
| Motor | 3/4 HP |
| Leader Hose Size | 1/2" |
| CFM @ 10 PSI | 4.5 CFM |
| Length | 13″ (330.2 mm) |
| Width | 6″ (152.4 mm) |
| Height | 8.0″ (203.2 mm) |
| Weight | 16 lb (4.42 Kg) |
-
Money-Back Guarantee/Refund Policy
All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform HornBlasters.com of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly. -
Warranty
All units sold on or after 11/25/2025 are sold as-is with no warranty. They're quality units built to handle serious air demands, but any service or repairs after purchase would need to be handled independently.
-
HornBlasters.com Satisfaction Guarantee
HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing. -
Cross-Shipments
HornBlasters.com will not cross-ship returned merchandise. -
Physical Damage Policy
Physical damage to any product purchased at HornBlasters.com will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.
Original: $450.00
-65%$450.00
$157.50More Images
Air-Zenith OB3 Black Air Compressor
MORE AIR, LESS WORRY
The Air-Zenith OB3 takes performance and durability to a new level. It builds on the success of the OB2 with stronger internal components, higher output, and better reliability. The OB3 delivers 4.5 CFM at 200 PSI with a 100% duty cycle, giving you constant, dependable airflow.
Its upgraded design includes a German-engineered wedge-locking bolt system. This prevents the internal piston and counterweight from loosening, a feature trusted in high-speed rail and subway systems.
Installation is simple with pre-wired connections for power, ground, and trigger. The OB3 includes a 60A relay plugged into a harness that’s prewired into the compressor’s leads. This setup makes it easy to swap or replace the relay if needed. The oil-free design reduces maintenance while the weatherproof air filter and waterproof cooling fan provide extra protection in harsh conditions.
- High Performance: 4.5 CFM at 200 PSI with 100% duty cycle.
- Built for Durability: The wedge-locking bolt system prevents the loosening of internal components.
- Simple Setup: Pre-wired 60A relay with a plug-and-play harness for easy swaps.
- Low Maintenance: Oil-free design with a PTFE piston ring for long service life.
- Versatile Mounting: 3-position brackets with NYLOCK self-locking hardware.
- Extra Protection: Waterproof cooling fan and weatherproof air filter.
**Attention: To maintain the integrity of your Air Zenith OB3 Black Air Compressor, ensure it is installed in an area protected from weather exposure. This model is not built to withstand direct exposure to the elements.**
- Air Zenith OB3 Black Air Compressor
- Braided Leader Hose & Check Valve
- Air-Zenith 80 Amp Relay
- Mounting Hardware
| Part Number | AC-OB3K |
| IP Rating | IP65 |
| Voltage | 12 Volts DC |
| Max Amperage | 33 Amps |
| Maximum Duty Cycle | 100% @ 100 PSI |
| Maximum Pressure | 200 PSI |
| Motor | 3/4 HP |
| Leader Hose Size | 1/2" |
| CFM @ 10 PSI | 4.5 CFM |
| Length | 13″ (330.2 mm) |
| Width | 6″ (152.4 mm) |
| Height | 8.0″ (203.2 mm) |
| Weight | 16 lb (4.42 Kg) |
-
Money-Back Guarantee/Refund Policy
All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform HornBlasters.com of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly. -
Warranty
All units sold on or after 11/25/2025 are sold as-is with no warranty. They're quality units built to handle serious air demands, but any service or repairs after purchase would need to be handled independently.
-
HornBlasters.com Satisfaction Guarantee
HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing. -
Cross-Shipments
HornBlasters.com will not cross-ship returned merchandise. -
Physical Damage Policy
Physical damage to any product purchased at HornBlasters.com will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
MORE AIR, LESS WORRY
The Air-Zenith OB3 takes performance and durability to a new level. It builds on the success of the OB2 with stronger internal components, higher output, and better reliability. The OB3 delivers 4.5 CFM at 200 PSI with a 100% duty cycle, giving you constant, dependable airflow.
Its upgraded design includes a German-engineered wedge-locking bolt system. This prevents the internal piston and counterweight from loosening, a feature trusted in high-speed rail and subway systems.
Installation is simple with pre-wired connections for power, ground, and trigger. The OB3 includes a 60A relay plugged into a harness that’s prewired into the compressor’s leads. This setup makes it easy to swap or replace the relay if needed. The oil-free design reduces maintenance while the weatherproof air filter and waterproof cooling fan provide extra protection in harsh conditions.
- High Performance: 4.5 CFM at 200 PSI with 100% duty cycle.
- Built for Durability: The wedge-locking bolt system prevents the loosening of internal components.
- Simple Setup: Pre-wired 60A relay with a plug-and-play harness for easy swaps.
- Low Maintenance: Oil-free design with a PTFE piston ring for long service life.
- Versatile Mounting: 3-position brackets with NYLOCK self-locking hardware.
- Extra Protection: Waterproof cooling fan and weatherproof air filter.
**Attention: To maintain the integrity of your Air Zenith OB3 Black Air Compressor, ensure it is installed in an area protected from weather exposure. This model is not built to withstand direct exposure to the elements.**
- Air Zenith OB3 Black Air Compressor
- Braided Leader Hose & Check Valve
- Air-Zenith 80 Amp Relay
- Mounting Hardware
| Part Number | AC-OB3K |
| IP Rating | IP65 |
| Voltage | 12 Volts DC |
| Max Amperage | 33 Amps |
| Maximum Duty Cycle | 100% @ 100 PSI |
| Maximum Pressure | 200 PSI |
| Motor | 3/4 HP |
| Leader Hose Size | 1/2" |
| CFM @ 10 PSI | 4.5 CFM |
| Length | 13″ (330.2 mm) |
| Width | 6″ (152.4 mm) |
| Height | 8.0″ (203.2 mm) |
| Weight | 16 lb (4.42 Kg) |
-
Money-Back Guarantee/Refund Policy
All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform HornBlasters.com of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly. -
Warranty
All units sold on or after 11/25/2025 are sold as-is with no warranty. They're quality units built to handle serious air demands, but any service or repairs after purchase would need to be handled independently.
-
HornBlasters.com Satisfaction Guarantee
HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing. -
Cross-Shipments
HornBlasters.com will not cross-ship returned merchandise. -
Physical Damage Policy
Physical damage to any product purchased at HornBlasters.com will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.
