Wolo® - Turbo™ On-Board Air System with Compressor and Extended Tank System

1 review|Item # mpn477956496|Similar Products
In Stock (2) - Ships within 24 hrs
Universal Fit
  • Not Vehicle Specific
Authorized Dealer
Have a Question? Ask a Specialist
800.505.3274Live Chat

Vehicle Fitment

This part is universal

Product Details

Universal Turbo™ On-Board Air System with Compressor and Extended Tank System (840) by Wolo®. The model 840 is a simple two-piece onboard air system consisting of a extended steel tank, 5.5 liter with a built in pressure switch and a 12-volt compressor that produces 2.03 cfm. The model 840 is designed to power Wolo’s train horns or any high-pressure horns that require a high pressure onboard air system, will sound a three trumpet train air horn for ten seconds of continuous sounding. Designed utilizing the latest technology, this product by Wolo features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.


Voltage: 12 V
Amperage: 12 A
Compressor auto-on/off: 80 PSI/110 PSI
Fitting size:: 1/4" air hose
Filler hose length: 20 ft, coiled with fittings
Compressor Size: Length: 6-1/2", Width: 3-1/2", Height: 5"
CFM: 2.03
Air Tank Apacity: 5.5 liter
Tank Size: Length: 18", Width: 5", Height: 5 1/2"


  • Will produce a super loud alerting sound to keep you safe on the road
  • Looks as good as sounds and sports a compact, elegant, and stylish design
  • Can be installed and assembled with no great effort, enables a secure connection
  • Manufactured with state-of-the-art materials and leading-edge innovations

Wolo is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by Wolo are made with expert care and created by professionals to meet all your requirements. Wolo does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, Wolo is the name you can trust.

Wolo® is a second–generation family owned business providing cutting-edge products which deliver the ultimate in quality and value to protect and keep people safe. In 1965 Wolo was established by one person who had an idea and commitment to manufacture a single patented hood lock. Today Wolo is a leading company in horn design and technology which also creates a variety of vehicle emergency and safety warning lights, sirens and speakers, on-board systems, and many other top-notch products.

Part Number:


Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
Wolo® - Turbo™ On-Board Air System with Compressor and Extended Tank System
1-1 of 1 Reviews
5 of 5
WOLO Turbo Compressor
Great looking product and for presentation, customer was very excited to see and hear finish product for horn and design of installation.
Posted by Arthur (Crown Point, NY) / July 29, 2016

Questions and Answers

If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!
CARiD FacebookCARiD TwitterCARiD YouTube ChannelCARiD PinterestCARiD Instagram
Inspiration Gallery
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.