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Cummins 6BT / 6BTA 5.9 Specifications

Configuration In-line 6-cylinder, 4-stroke diesel
Bore & Stroke 102 mm x 119 mm (4.02 in x 4.72 in)
Displacement 5.9 L (359 in3)
Aspiration Turbocharged/Aftercooled
Rotation Counterclockwise facing flywheel
  • Highest production 6 liter diesel ever made and is still in production in over 6 countries worldwide
  • The most proven mid-range diesel platform and is used in multiple markets
  • The 6BT is the engine that put the Dodge Ram on the map and is still the most popular diesel pickup truck made today
  • HX or Keel Cooling configurations / Seawater or Jacket Water Aftercooled
  • Simple 12 valve mechanical design with parts pricing that no other engine can touch

Technical Resources

Cummins 6B & QSB Oil Filters
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Lots of questions come up on what oil filter I should be using on the Cummins B or QSB 5.9. Below is what I can share based on using and working with this engine since... Read More

Cummins Marine 6BTA 5.9 & 6CTA 8.3 Maintenance Procedures
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General Information Perform maintenance at whichever interval occurs first. At each scheduled maintenance interval, perform all previous checks that are due for scheduled maintenance. Maintenance Procedures at Daily Interval Coolant Level – Check Fuel-Water Separator... Read More

330-370 Diamond--19SI alternator & remote oil filt kit 330-370 B Diamond Trans Cooler upgrade 330-370 Bosch p7100 Injection Pump 330-370 Diamond-Heater modual and 2-bolt starter 330-370 Diamond--HX side 330-370 Diamond--ZF220A transmisssion (1) 330-370 Diamond--ZF220A transmisssion 330-370 Diamond-ZF280A gear (1) 330-370 Diamond-ZF280A gear 330-370 Diamong with SMX Pump & Envirovent kits 330-370 Diamong-24SI alternator

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