BPS Caterpillar C12 C13 K31 Turbo - 72mm Billet Wheel

Enhance Your Engine with the BPS CAT C12 C13 K31 72MM Turbocharger

Unleash the full potential of your Caterpillar C12 and C13 engines with the BPS K31 billet 72mm Turbocharger, engineered for single turbo conversions. Featuring a T51R-modified compressor volute for lightning-fast spool-up and an internally gated K31 design for rapid response and extended durability, this turbo delivers superior performance. The 72mm CAE (Computer-Aided Engineering) billet compressor wheel ensures optimal airflow, boosting power output to 425-550HP. Precision-crafted to exceed OEM standards, the BPS K31 offers unmatched reliability and efficiency for heavy-duty trucks and equipment. Backed by a 1-year unlimited mileage warranty, it’s the ultimate upgrade for Cat C12 and C13 engines. Shop now for fast shipping and expert support!

Key Features:

• 72mm CAE billet compressor wheel for enhanced airflow with a 1.28 A/R Turbine Housing.

• T51R-modified compressor volute for rapid spool-up

• Internally gated K31 for quick response and long service life

• Ideal for Cat C12 and C13 single turbo conversions (425-550HP)

• 1-year unlimited mileage warranty

• NOW available with BPS Full Billet Wastegate Pod upgrade.  Crafted from high-grade billet aluminum, this pod resists wear, corrosion, and leaks, providing long-lasting reliability that surpasses stamped alternatives.  Highly recommended for heavy hauling operations, this housing helps maintain low Exhaust Gas Temperatures (EGTs) while enabling quicker spool-up, resulting in improved throttle response, fuel efficiency, and overall engine longevity.  Standard with Gate actuation starts at 27 PSI and fully opens at 30 PSI.  The industry-leading BPS Billet starts gate action at 34 psi for gradual boost management, fully opening at 38 PSI to deliver consistent performance across varying loads and elevations.

Cross Reference Part Numbers:

• OEM Replacement Turbo Part Numbers: 0R7578, 115-2989, 0R-6051, 0R7292, 0R7575, 0R7579

• BorgWarner Turbo Part Numbers (Replacements/Equivalents):

  • 172743 (K31, direct fit for DDEC 3/4 equivalents, commonly used on C12)

  • 178120 (S4DS025, cross with 0R-6051)

  • 177148 (S410G, upgrade for 425-550HP)