Failures that result from the installation or usage of other manufacturers auxiliary devices, ac-cessories or consumables, however, are not Caterpil-lar factory defects and therefore are NOT covered by Caterpillar's warranty. respectively, closer in size to the older D6C and D6D.
Caterpillar D6C Crawler Parts Manual (SN 69U1-69U315) (69U1-69U315) Caterpillar Parts Manual. Since 1996 the D6K at 125 hp and 28,409 lb, the D6N at 150 hp and 36,497 lb and the D6T at 165 hp at 46,690 lb all have been introduced.