Caterpillar Performance and Emissions Repowers Cat® Emissions and Performance Repowers A repower can help you meet more stringent emission standards and may provide operational benefits. It replaces an in-use engine system with a new or remanufactured engine system. Machines equipped with lesser-regulated engines, such as unregulated or U.S. EPA Tier 1 engines can be repowered to meet emission standards. Possible benefits: • Cost-effective technology from newer models upgrades your trusted, proven machine. You can work at sites with higher local, state, and federal emission standards. Machine operation remains the same. Fleet commonality simplifies parts stocking and training. You get significant reductions in engine emissions. May include a new cooling system, hydraulics system, exhaust system, and electronics Potential fuel and oil savings (Highlighted in Green) Extended equipment life Funding may be available from local, state, or federal sources These solutions are available for the machines with the prefixes and engine arrangements identified in the tables below for each of the product groups. Additional repower options may also exist; please contact your local Cat® dealer for more information. Compactors Machine Specification U.S. EPA Model S/N Prefix Tier Level 815B 17Z Unregulated 824C 85X Unregulated 824C 85X Unregulated 825C 86X Unregulated 825C 86X Unregulated 826C 87X Unregulated 826C 87X Unregulated

Caterpillar Performance and Emissions Repowers Excavators Machine Specification U.S. EPA Model S/N Prefix Tier Level 235B 7WC, 1FD Unregulated 235C 5AF, 3WG Unregulated 235D 8KJ Unregulated Motor Graders Machine Specification U.S. EPA Model S/N Prefix Tier Level 13W, 72V, 140G Unregulated 5MD, 50H 13W, 72V, 140G Unregulated 5MD, 50H Repower Engine U.S. EPA Model Tier Level 3306B 1 3306B 1 3306B 1 Repower Engine U.S. EPA Model Tier Level 3306B

Caterpillar Performance and Emissions Repowers Off-Highway Trucks – Cat Certified Rebuild Upgrade* Machine Specification Repower Engine U.S. EPA U.S. EPA Model S/N Prefix Model Tier Level Tier Level 785 8GB223+ Unregulated 3512B 1 785B 6HK Unregulated 3512B 1 789 9ZC Unregulated 3516B 1 789B 7EK Unregulated 3516B 1 *The Cat Certified Rebuild Upgrade program is currently available in the United States, Australia, Indonesia, South Africa, Chile, Mexico, Colombia, and Russia Solutions highlighted in green offer potential fuel and oil savings Track-Type Tractors Machine Specification Model Repower...

Caterpillar Performance and Emissions Repowers Wheel Tractor-Scrapers Machine Specification U.S. EPA S/N Prefix Tier Level 5TF Unregulated 9XG Unregulated 45P Unregulated 45P, 2GB Unregulated 6AB Unregulated 4SK Unregulated 46P Unregulated 46P Unregulated 6CB, 6YF Unregulated 5EW, 6BK Unregulated 37V, 38V Unregulated 7CG Unregulated 1DL Unregulated 24W Unregulated Repower Engine U.S. EPA Model Tier Level 3304B

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