/ May 12, 2024 Cummins model 20 jake brake parts Search for: Advanced Search Place Ad Edit Ad Browse Ads Search Ads Cummins model 20 jake brake parts Contact Information Contact Jim Swank Phone: 410 456 4962 Location: Maryland, USA Price: Free Year: 1958Make: CumminsModel: 20 Jake Brake More Information I am in need of the early solid type crossheads for a H model cummins model 20 jake brake. Not the sleeve type used on the later engines. Jacobs part number 1003. Cummins number 3871200. Any help is appreciated. This Ad has been viewed 32 times. 0 Comment