Viair 400C Air Compressor

Looking for one of the fastest compressors you can buy? Check out the speed demon Viair 400C Air Compressor, the fastest-filling compressor in its class and the centerpiece in many of our best train horn kits. This compressor produces a stunning  2.62 CFM while pulling no more than 28 amps of power, giving you a lighting-fast recharge time. The Viair 400C can recharge a 2.5-gallon tank from 110-150 PSI in a ridiculously fast 48 seconds and recharge a 5-gallon tank in just over 1 minute and 40 seconds. With speeds this fast, this is the go-to compressor for train horns and air horns, but it also has the ability to do some light tire inflation in case of emergency. 

The Viair 400C Air Compressor comes complete with a remote mountable intake filter assembly, or “Air Snorkel Kit”, allowing the air intake to be moved to use clean air even if the compressors are mounted in the way of debris, moisture, and other air system contaminants. Includes a standard 1/4″ NPT stainless steel braided leader hose with check valve and insulated wiring for fast installation.

The Viair 400C Air Compressor is featured in the Horn Kits listed below:

This compressor does come with the option to add our 40 Amp Air Compressor Wiring Kit to it as well!

Note: Use thread sealant for proper installation. Thread 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.

 * Supply Voltage: 13.8 Volts

* Supply Voltage: 13.8 Volts

• Viair 400C Air Compressor Manual
• Viair 400C Air Compressor Wiring Diagram
• Viair 400C Air Compressor Dimensional Drawing

• Permanent Magnetic Motor
• Oil-less Design
• High-Performance PTFE Piston Ring
• Stainless Steel Valves
• Moisture & Dirt Resistant 
• Gearless Direct Drive Motor
• Anodized Aluminum Alloy Cylinder
• Automatic Reset Thermal Overload Protector
• Mounting Plates with Vibration Isolators
• Stainless Steel 1/4" Braided Leader Hose
• Remote Mountable Intake Filter Assembly
• Insulated Wiring with Connectors

• Viair 400c Air Compressor
• 1/4" NPT Braided Leader Hose & Check Valve
• Remote Mountable Two-Stage Air Filter
• Replacement Filter Elements
• 1 Year Manufactures Defect Warranty
• Mounting Hardware

• Part Number: AC-400C, AC-400K
• Manufacturers Part Number: 40040, 40048
• Voltage: 12 Volts DC
• Max Amperage: 28 Amps
• Maximum Duty Cycle: 33% @ 100 PSI
• Maximum Pressure: 150 PSI
• Max Tank Size: 5 Gallons
• CFM @ 0 PSI: 2.62 CFM
• Length: 9″ (228.6 mm)
• Width: 4″ (101.6 mm)
• Height: 6.75″ (171.5 mm)
• Weight: 6.95 lb (3.15 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
  This product is backed with a 1 Year Manufactures Defect Warranty!
• 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.