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How do I know the right Jake brake for my 8V-71 or 8V-92 series engine?
Home > FAQs > Diesel Engines
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The application information below can be used to determine the appropriate Jacobs retarder model for Detroit Diesel engines.
| Engine Model |
Control Type |
Brake Type/Model |
Lash Setting |
Lash Adjust. Tool |
Tune Up Kit |
| 4-71A DDEC III |
DDEC III |
71/92 Engine Brake |
0.059" |
7958 |
17056 |
| 6-71A Mechanical |
Mechanical |
71/92 Engine Brake |
0.059" |
7958 |
17056 |
| 8V-71A Mechanical |
Mechanical |
71/92 Engine Brake |
0.059" |
7958 |
17057 |
| 6V-92A Mechanical |
Mechanical |
71/92 Engine Brake |
0.059" |
7958 |
17056 |
| 6V-92A DDEC II |
DDEC II |
71/92 Engine Brake |
0.059" |
7958 |
17056 |
| 6V-92A DDEC III |
DDEC III |
71/92 Engine Brake |
0.059" |
7958 |
17056 |
| 8V-92A Mechanical |
Mechanical |
71/92 Engine Brake |
0.059" |
7958 |
17057 |
| 8V-92A DDEC II |
DDEC II |
71/92 Engine Brake |
0.059" |
7958 |
17057 |
| 8V-92A DDEC III |
DDEC III |
71/92 Engine Brake |
0.059" |
7958 |
17057 |
Information provided by Jacobs Vehicle Systems
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RV and bus conversion info since 1996.
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