Many 6.0L oil cooler replacements are completely unnecessary. Our easy-to-use flush tool kit can save you a substantial amount of time and money by allowing the existing cooler to be back-flushed on the vehicle as an alternative to costly and labor intensive part replacement. Over time, the tiny cooling passages in the oil cooler become restricted due to leftover casting sand in the engine block and poor cooling system maintenance. The traditional solution is oil cooler replacement. With our kit, the oil cooler can be back-flushed in less than an hour. By directing water flow in the opposite direction of normal travel, contaminants are dislodged and, in most cases, the cooler is returned to like-new effectiveness. When compared to other alternatives, our kit has several unique advantages: 1. Removal of the factory cooling manifold (which routes coolant from the oil cooler into the EGR cooler) is not required. When disturbed, the quick-connect hose between the oil cooler and the EGR cooler will often begin leaking, resulting in a come-back. Our tool does not require tampering with this connection, averting much frustration. 2. Blocks flow into the EGR cooler while the flush adapter is in use so that 100% of the water force is directed through the cooler for maximum cleaning effectiveness. 3. Significantly lower cost than other alternatives. 4. Can be re-used over and over again - the vehicle is not altered, and there is no need for any part of the tool to remain on the vehicle. Kit Includes: (1) Flush adapter, required brass fittings, hose. Complete usage instructions are available on our website.