MA3H – Cummins 3871638 is a genuine OEM rectangular seal ring used as the upper seal ring in Jacobs engine brake assemblies. Cummins/Jacobs service literature for the 411 / 411C / 411D brake models identifies 3871638 specifically as the upper seal ring.
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MA3H – Cummins 3871638 is a genuine OEM rectangular seal ring used as the upper seal ring in Jacobs engine brake assemblies. Cummins/Jacobs service literature for the 411 / 411C / 411D brake models identifies 3871638 specifically as the upper seal ring.
| Weight | .5 lbs |
|---|---|
| Dimensions | 3 × 3 × 3 in |
Any mention of OEM names or OEM product ID numbers/descriptions/model numbers is intended for identification purposes only and does not indicate that it is an OEM part.
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