Looking for the CATERPILLAR 286-3503 ENGINE AR-B (Part No. 2863503)? This premium OEM engine assembly is designed for high-performance Caterpillar machinery, including the C175-20 engine series. Perfect fit for 797 Truck (5YW) and 797B Truck (JSM) models. Trusted for its durability, power, and compatibility with heavy-duty mining and construction equipment, the 286-3503 Engine AR-B ensures optimal performance in the toughest working conditions. Explore full specifications and buy online now at AllParts.Expert — your go-to source for genuine Caterpillar engine parts. Ideal for fleet managers, heavy equipment operators, and repair professionals seeking reliable replacement engines.