Can anyone point me in the right direction on reputable places to buy/download service manuals. Looking for the service manual for a Cat D6M sn 4jn0 and up even the part number would be a great help.
Search the usual marketplaces for Caterpillar Publication SENR8380. Before you wince at the price being asked be aware that a new copy is US$755 in paper form or $535 on a CD. CAT Caterpillar D6m Crawler Tractor Repair Shop Service Manual SENR8380 Owner for sale online | eBay Find many great new & used options and get the best deals for CAT Caterpillar D6m Crawler Tractor Repair Shop Service Manual SENR8380 Owner at the best online prices at eBay! Free shipping for many products! www.ebay.com I don't know of anywhere reputable that has these manuals to download. There are sellers on eBay but the "manuals" they purport to be selling are not genuine OEM ones, rather a mash-up of documents scoured from the internet.