Product Description

Detroit Diesel (Detroit, Michigan — founded 1938 as the GM Diesel Engine Division, later Detroit Diesel Allison; today Detroit Diesel Corporation, a Daimler Truck subsidiary) manufactured the two-stroke Roots-blown diesel engine family — the 53-Series, 71-Series, 92-Series, and 149-Series — that dominated U.S. Class-8 trucks, transit buses, over-the-road coaches, military tactical vehicles, marine propulsion, and construction/mining equipment through the asbestos era. The two-stroke Detroit Diesel is characterized by its distinctive high-pitched roar and by exhaust manifolds that run considerably hotter than four-stroke diesel exhaust systems.

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Detroit Diesel two-stroke engine exhaust manifold gaskets, cylinder head gaskets, blower gaskets, and related high-temperature sealing gaskets contained asbestos as a heat-resistant sealing material through the documented era, and that diesel mechanics, marine mechanics, bus/coach mechanics, and heavy-equipment mechanics who serviced Detroit Diesel engines were exposed to airborne asbestos fibers.

Two-stroke Detroit Diesel exhaust manifolds run hot enough that the asbestos-containing exhaust manifold gasket typically becomes baked, brittle, and difficult to remove — requiring aggressive scraping, wire-brushing, or die-grinding of the manifold and head sealing surfaces during replacement. Each of these operations releases respirable fibers from the deteriorated gasket material into the mechanic’s breathing zone.

Detroit Diesel has been named as a Manufacturer Defendant in publicly filed U.S. asbestos personal-injury and wrongful-death litigation.

Workers Exposed

  • Diesel mechanics performing 6V-71, 8V-71, 6V-92, 8V-92, and 12V-71 exhaust manifold service
  • Marine engine mechanics servicing Detroit Diesel marine propulsion and auxiliary engines on tugs, workboats, ferries, and Navy small craft
  • Transit bus and over-the-road coach mechanics servicing Detroit Diesel-powered GM/Flxible/MCI buses at municipal transit and Greyhound shops
  • Heavy-equipment mechanics servicing Detroit Diesel-powered construction, mining, and off-road equipment
  • Military vehicle mechanics servicing Detroit Diesel-powered tactical vehicles and generator sets
  • Locomotive mechanics servicing switcher and yard locomotives with Detroit Diesel prime movers
  • Detroit Diesel dealership and distributor service technicians