2. Western
  3. In-Line Adapter Kit #28027

Western In-Line Adapter Kit #28027, In-Line Isolation Module Adapter Kit #28027 Installation guide

  • Hello! I've reviewed the instructions for the WESTERN In-Line Adapter 28027. This adapter is designed to manage the low beam lights on snow plows for vehicles with 4-headlamp systems. The manual details the correct installation steps, including connecting harnesses and relay positions. I'm ready to answer any questions you may have about its installation and usage.
  • What is the purpose of this adapter?
    What should I do if the relays become detached?
    Where does the in-line adapter plug into?
The company reserves the right under its product improvement policy to change construction or design details and furnish equipment when so
altered without reference to illustrations or specifications used.
Lit. No. 28202 Printed in U.S.A. April 11, 2003
A DIVISION OF DOUGLAS DYNAMICS, L.L.C.
In-Line Adapter Instructions
Kit 28027
1. Connect the vehicle control harness and both of
the plug-in harnesses according to the Isolation
Module installation instructions.
2. Plug the 10-position female connector of the in-line
adapter into Position 2 on the Isolation Module.
3. Connect the 10-position female connector of the
vehicle lighting harness to the 10-position male
connector of the in-line adapter.
NOTE: The relays attached to the in-line adapter
come pre-installed. If they accidentally become
detached, reconnect them according to the relay
connection illustration.
1234
Vehicle Control Harness Plug-In Harnesses
Vehicle Lighting Harness
In-Line Adapter
GRN
YEL
YEL
ORN
GRN
GRN
ORN
Right Low
Beam Relay
BLK
85
K1
30
86
87A
87
87
85
86
30
87A
BLK
K2
BLK
In-Line Adapter Relay Connections
Left Low
Beam Relay
CAUTION
This adapter is required for vehicles equipped
with a 4-headlamp lighting system that
illuminates the low and high beams when in
high-beam mode. This adapter prevents the
low beams on the snowplow from illuminating
when placed in high beam.
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