
Performance benefits of Jacobs’ Compression Release Brake
- Capable of 85% of the vehicle’s braking needs
- Increases productivity by maintaining higher average downhill speed
- Reduces slowing time/distances on flat land, slowing a heavily loaded vehicle from 90 to 70 kph in 30% less time and distance than with wheel brakes alone
- Lower total cost of ownership
- Significantly reduces brake wear
- Eliminates “brake fade” due to high temperatures on the friction brakes; keeping them cool for maximum effectiveness when needed.

How Jacobs’ Compression Release Brake works
When activated, when the engine is not fueling, the Jacobs’ Compression Release Brake opens the exhaust valves near the top of the compression stroke, releasing the highly compressed air through the exhaust system. The vehicle energy is used to push the engine to compress the air, but little energy is returned to the piston, and as the cycle repeats, the energy of the truck’s forward motion is dissipated, causing the truck to slow down.
Engine-specific solutions for leading OEMs

C10
C12
C15
C16
3406

X15 / ISX15 / ISX
ISX12
ISX12N / ISX12 G
ISM / M11
L9 / ISL9 / ISL
ISZ

MX-11
MX-13

OM470
DD13 / OM471
DD15 / OM472
DD16 / OM473

DD13
DD15
DD16
S60
S50

dCi 11

DV11

Ecotorq 13

6M70
MDIPT

10L
12L

E13
A05
A09

Powertec (L)
H

A26
DT466
DT530 / 570
N9
N10
N11
N13

6UZ1
6NX1

Series 53
Series 71 / 92

MX-11
MX-13

10L / 12L

WP 9H / 10H

K12
Learn more
Download this information package for more details and technical information about Jacobs’ Compression Release Brake.