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  • Cummins Engine Co., Inc.
  • www.cummins.com
  • Designer and manufacturer of power generation equipment, power systems, gasoline engines, custom power supplies .
4.2
(si*)
>50
6
  • Allison Transmission
  • www.allisontransmission.com
  • Designs and manufactures medium, heavy duty and hybrid automatic transmissions.
4.1
(si*)
<5
5
  • Knorr-Bremse AG.
  • www.knorr-bremse.com
  • A worldwide producer of pneumatic, hydraulic and electronic braking systems, and chassis management systems for commercial vehicles.
4.0
(si*)
-
6
  • Hendrickson International
  • www.hendrickson-intl.com
  • Designs and manufactures suspension systems and components for heavy duty trucks and trailers.
3.9
(si*)
-
4
  • SAF Systems
  • www.saf-achsen.de
  • Manufacturers axles in numerous weights for loads ranging from 6 to 16 tonnes.
3.8
(si*)
-
4
  • Cummins Westport Inc.
  • www.cumminswestport.com
  • Alternate fuels joint venture created to develop and market low emissions, high performance alternative fuel engines for use in trucks and heavy vehicles.
3.8
(si*)
<5
5
  • Pacbrake
  • www.pacbrake.com
  • Supplies engine brakes and exhaust retarders for diesel engines.
3.6
(si*)
<5
4
  • Isspro Inc.
  • www.isspro.com
  • Manufactures electronic instruments and controls used in heavy duty vehicles. Also produces products for automotive and marine use.
3.5
(si*)
-
2
3.5
(si*)
-
2
  • Fontaine International
  • www.fifthwheel.com
  • Manufactures fifth wheel coupling devices used on Class 6, 7 and 8 truck tractors to connect trailers.
3.5
(si*)
<5
3