Rocker arms are operated by pushrods from the camshaft, opening and closing valves that allow fuel and air in and exhaust out of the combustion chamber. Cat Reman rocker arms such as part # 20R-8517 are the choice when you need to repair or rebuild your Cat engine. Returning cores are thoroughly cleaned and inspected for signs of wear, especially in the socket, on the top or sides. We use our state-of-the-art salvage techniques, advanced manufacturing systems and quality control to return viable components to like new condition. Each unit includes all critical engineering updates, and is rigorously tested against original specifications, so you know you’re getting genuine Caterpillar reliability.

Attributes:
• You're buying less downtime and lower repair bills, helping you reduce owning and operating costs.
• Cat Reman rocker arms provide like new performance and reliability at fraction-of-new costs while reducing the impact on the environment compared to buying new.
• All Cat Reman products come with a same-as-new Caterpillar Limited Warranty. 1
• Cat Reman offers off-the-shelf availability. 2

1 Warranty can vary by model and application; limitations may apply. For complete details about the applicable Caterpillar Limited Warranty, contact an authorized Cat dealer.
2 Part may not be available off-the-shelf at all times and in all locations.