Hyundai 6.7L Cummins Long Block Diesel Crate Engine Choate Performance (QSB6.7 / B6.7)

Stop settling for a standard "rebuild." Choate Performance offers a fully remanufactured Hyundai 6.7L Cummins Long Block (QSB6.7 / B6.7) that utilizes the same precision engineering as our high-performance 6.7L Cummins builds. Engineered for owner-operators and fleet managers running Hyundai excavators and wheel loaders who cannot afford downtime, our engines are built to be smoother, cooler, and more durable than a factory-fresh unit.

The Choate Remanufacturing Process

We treat your industrial engine with the same "Stock is Not an Option" philosophy we bring to our high-horsepower competition diesel builds:

• CNC Blueprint Boring: We don't just hone cylinders; we CNC blueprint the block to ensure perfect geometry and alignment.

• Precision Balancing: We don't settle for simple component weight-matching. We fully balance the entire rotating assembly to within 2 grams. This drastically minimizes harmonic vibration, eliminating the leading cause of premature bearing failure in heavy equipment.

• Torque Plate Honing: We simulate the stress of a torqued cylinder head during the honing process to ensure the most consistent ring seal possible.

• Upgraded Components: Every engine receives brand-new critical components. We use upgraded valve materials to prevent the high-heat separation common in OEM exhaust valves under heavy hydraulic load.

What’s Included:

• Fully Machined Block & Crankshaft (Ground to 0.0005" or less)

• New Upgraded Pistons & Rings (Designed to prevent cracking under high boost and thermal load)

• New Main, Rod, and Cam Bearings

• Remanufactured Cylinder Head (New heavy-duty valves, guides, and seats)

Ordering Instructions

Please enter your 8-digit Cummins Engine Serial Number (ESN) in the field above before placing your order. Because oil pans, flywheel housings, and turbo mountings vary across Hyundai models, providing your ESN upfront guarantees a 100% bolt-in match for your machine.

Need help finding your ESN? Give us a call or check out our Comprehensive Guide.