Available 4-year overhaul protection when Altorfer overhauls your Cat engine with the Platinum kit. (Applies to all HD engines.) Each kit includes all the genuine Cat parts needed to complete an in-frame overhaul, plus a variety of value-added components to match your specific needs. The Platinum kit must be equivalent to Platinum Precious Metal engine overhauls and must include turbo(s) and unit injectors. Turbo(s) and fuel nozzles must be replaced on all mechanical engines.