Product Manual
INSTALLATION INSTRUCTIONS
For Model 410 Wobbler horn
The addition of a Wolo horn kit in your vehicle will provide an extra level of sound. The Wolo name, with more than
twenty years experience, is your guarantee of a superior horn product. If you need help installing your new Wolo horn,
our technicians are available to answer your questions, Monday thru Friday, from 9 AM to 4 PM EST at 1-888-550-
HORN (4676).
1. Install the compressor in the engine compartment in a dry
location and safe from engine and exhaust manifold heat.
To secure the compressor, drill a 3/16-inch hole. Mount
compressor vertically (air outlets at the top). Install the
head of the bolt into the slot on the compressor’s housing
and secure to the vehicle using the lock washer/nut
provided. (See Fig. A).
2. Position each trumpet with open end facing down, mark
and drill a 1/4-inch hole for each trumpet. Secure to vehicle
referring to Figure B. Use mounting hardware in order
shown - spacer, lock washer/nut.
3. IMPORTANT: Mount trumpets with the
open ends facing down. This will prevent
water from entering into the trumpets and
compressor. Water damage to the horn’s
component parts is not covered by our
factory warranty.
4. Using plastic air tubing included in the kit, cut to proper length and install
referring to Figure C. The inlet fitting on each trumpet has a colored ring.
When connecting the plastic tubing , mate with the same color ring on the
compressor outlet fitting. CAUTION: Avoid making any kinks or sharp
bends in tubing that will restrict the airflow and alter the horn's sound.
ELECTRICAL CONNECTIONS USING VEHICLE’S
FACTORY HORN SWITCH
For a vehicle with a (2) wire system: If vehicle’s factory horn has two (2) terminals, simply transfer the wires to the
terminals on the bottom of the compressor. IMPORTANT: when testing the horns, if compressor motor turns on but
the horn does not sound, reverse the wires connected at the bottom of the compressor.
For a vehicle with a (1) wire system: If vehicle’s factory horn has two (1) terminal, simply transfer wire to the
compressor’s positive (+) terminal on bottom of compressor. The compressor’s negative terminal is connected to any
metal body ground. Connection should be free of rust or paint.