Blue Ox Exhaust Brakes

WM790

Blue Ox retarder devices provide downhill retarding horsepower as well as cold weather protection for the 4 stroke engine in both highway and idling modes. This unit is designed to mate directly with the turbo charger for several engines including the Caterpillar 3126. Usually the downstream exhaust pipe is 3 1/2" diameter but other size flange kits are also available.

Blue Ox WM790

Blue Ox 790 Schematic

Complete installation kits include

1. WM790 AK02 - 3 1/2" 12 volt manual type foot operated.

2. WM790 AK04 - 3 1/2" 12 volt automatic type throttle rod actuated.

3. WM790 AK06 - 3 1/2" 12 volt automatic type electronic engine controlled.

4. WM790 AK18 - 3 1/2" 12 volt automatic type electronic engine control.
(with air supply kit)

Item
Part
Number
Quantity
Description
Item
Part Number
Quantity
Description
1
790-01
1
Housing
 
12
728-18
1
Bushing
2
790-02
1
Shaft
 
13
728-28
4
Cap Screw
3
790-03
1
Butterfly
 
14
WM111C
1
Breather
4
160028
1
Bracket
 
15
728-40
1
Hair Clip
5
WM635B3B
1
Cylinder
 
16
728-55
1
Snap Ring
6
728-07
1
Link
 
17
728-29
5
Lock Washer
7
115383
1
Clevis
 
18
728-35
1
Shaft Nut
8
790-09
2
Rivet
 
19
728-36
1
Stop Screw
9
728-09B
2
Collar
 
20
728-37
1
Jam Nut
10
728-16
3
Seal Ring
 
21
115171
1
Pin
11
728-17
1
Bushing
 
22
115159
1
Pin