FASTER THAN A LOOTER WITH A TV

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 comes complete with a remote mountable intake filter assembly, or “Air Filter Snorkel Kit”, allowing you to relocate the air filter up to 6 feet away to keep it away from moisture and debris. It also 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.