The Complete Guide to the Komatsu SAA6D107E Engine Series

Komatsu SAA6D107E (6.7L)

The Comprehensive Guide to the Industry's Hardest Working Engine

Komatsu SAA6D107E Long Block Engine

Built on a Legend: The Cummins 6.7L DNA

The Komatsu SAA6D107E is a 6.69L, six-cylinder diesel power plant co-developed through the Komatsu-Cummins joint venture. While it shares its core architecture with the Cummins QSB6.7, it is custom-tuned for the unique load-sensing hydraulics and high-torque demands of Komatsu heavy equipment. At Choate Performance, we remanufacture these engines to solve factory oiling and thermal flaws, ensuring your machine stays in the dirt and out of the shop.

6.69 LitersDisplacement
107mm x 124mmBore & Stroke
HPCRCommon Rail Fuel
KVGTVariable Turbo

Identify Your Generation

Knowing your "Dash" number is critical. Each generation features different turbochargers, electronics, and exhaust aftertreatment systems.

Engine Model Emission Tier Exhaust System Turbo Type
SAA6D107E-1 Tier 3 Straight / Muffler (No DPF) Standard Wastegate
SAA6D107E-2 Tier 4 Interim KDPF (Soot Filter) Variable (KVGT)
SAA6D107E-3 Tier 4 Final KDPF + SCR (Requires DEF) Variable (KVGT)

Machine Compatibility

From the workhorse Dash 8 series to the latest Dash 11 intelligence, find your specific machine below.

Excavators

  • PC200-8, PC210-8, PC220-8 -1
  • PC228US-8, PC240LC-8, PC270LC-8 -1
  • PC210LC-10, PC240LC-10, PC290LC-10 -2
  • PW180-10, PW200-10, PW220-10 -2
  • HB215LC-2 (Hybrid) -2
  • PC210LC-11, PC240LC-11, PC290LC-11 -3
  • PC210LCi-11, PC228USLC-11 -3

Wheel Loaders

  • WA200-6, WA250-6, WA270-6 -1
  • WA320-6, WA380-6 -1
  • WA270-7, WA320-7, WA380-7 -2
  • WA270-8, WA320-8 -3

Dozers & Specialty

  • D51EX/PX-22, D61EX/PX-15E0 -1
  • D61EX-23, D61PX-23 -2
  • D51EX/PX-24, D61EX/PX-24 -3
  • BR380JG-1 (Mobile Crusher) -1
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Verify Before You Buy

To ensure 100% harness and mounting compatibility, always check the Engine Data Plate located on the top rocker cover or the side of the gear housing. The "Dash" number (e.g., -1, -2, or -3) is the most important factor in your replacement build.

Missing your tag? Provide your Machine Serial Number to our team and we will verify the build for you.

Troubleshooting & Fault Codes

Dealing with a CA559 or CA2249 rail pressure code? We've put together a comprehensive technical guide to diagnosing the most common failures in the SAA6D107E engine series.

READ THE TECH GUIDE

Stop Losing Money to Downtime

Our remanufactured long blocks feature CNC blueprinting, precision balancing, and upgraded internals to outlast OEM replacements.


View Upgraded Options

Or Call an Expert: 901-553-9847