That would depend on the make and model of the vehicle to give an accurate assessment for the installation of this unit.
Hayes Energize III® Brake Controller, Model# 81741B
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- Sensing device automatically monitors tow vehicle deceleration
- Delivers smooth proportional trailer braking
- Reacts instantly to change in brake pedal pressure for smooth stops
- Trailer/tow vehicle stoplights operate when trailer brakes are applied automatically or with manual lever
- For trailers with 2 or 4 electric brakes
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See All Trailer Brake Controllers
See All Trailer Brake Controllers
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Specifications
Specifications
Hayes Energize III® Brake Controller, Model# 81741B
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Mounting Hardware Included
Same
Yes
No
Yes
Yes
Dimensions L x W x H (in.)
Same
8 x 4 x 2 in
-
8.0 x 6.0 x 3.0 in
9.0 x 6.0 x 6.0 in
Axle Capacity
Same
-
1-2
1-3
1-3
Brakes Capacity (qty.)
Same
-
4
-
-
Bluetooth
Same
-
Yes
-
-
Product Weight
Same
-
0.79 lb
2.0000 lb
4.5000 lb
Mounting Location
Same
-
-
Trailer Mount
Trailer Mount