Feb 21, 2010 · D6d All, thanks for your opinions and observations--they're all good. (even if they're bad!) Tripper, the only real information I can find on pricing is from what the dealers want (highway robbery--$40K) and on the Ritchie Bros auction results pages. From there it looks like an early '80s D6D goes for about $15-25K.

Sep 30, 2013 · Im also facing a similar predicament. I have a CAT D6D Dozer Engine 3306. It has the following numbers which amongst these I am not sure which is a serial number/Engine number since the descriptions are not visible 1. 20X 1449 Could this be the SN and hence supposed to read 20X 01449? 2. 49V 15827 There is something like A...

Jan 4, 2020 · I have a 1980 D6D that runs well. Have not had any issues. Lately I can run for a couple of hours and unit will go to a crawl and eventually stop. Can idle a few minutes and it will move again but not at full speed. Engine rpms and hydraulics are all still operating normal. Need some guidance on what the problem could be. RDowling

Mar 26, 2012 · i would recommend cat oils for your machine if a dealer is near by. engine 15w/40 trans sae 30 hyd cat hyd fluid final drives sae 50. dependant on ambient temp range. oil change interval. eng 250 hrs trans 1000 hrs hyd 2000 hrs f/drives 2000 hrs may need to change more often depending on work conditions. the above is standard cat recommendations.

Nov 13, 2024 · Well your D6D is a Yank built Tractor from 1977 to 86 fitted with the Sleeve type injection pump, you will most probably have heater plugs set as a PC engine, your system looks to not have a constant bleed feature, these pumps suffer with any bad fuel /water involvement so your Master Tech might have been on the money saying the pump is failed ...

Feb 20, 2015 · I have run both a lot and they are both excellent dozers,it is hard to say which one is the better performer and I would not be afraid to purchase either one.You might get longer life from the Cat because of parts availability and the TD-15 might be a little cheaper but they are both very capable machines and I might just lean toward the Dresser a bit.Just as an example I …

Nov 21, 2021 · There seem to be varying opinions on the cat aftermarket gears. Some say good, some say rubbish. They are a lot cheaper. Bull gear $4872 verses $1948 pinion the two gears $3645 versus $1588 small pinion $855 versus $420 If I had to replace all the gears with their aftermarket and plus the bearing/seal kit from Cat it will be around $6500 for ...

Nov 19, 2011 · The D6D is usualy fitted with the direct injection engine with no heater plugs, you can only check out a tractor " so much " by looking around it, the real test would be in working it under average conditions for as long as you are allowed to, the most important item would be the transmission and final drives to check out, the parts are all …

Apr 8, 2022 · I have an 85 cat D6d with 3306 and the sleeve metering style injection pump with pencil nozzles. The pump will not stay primed. I can get the machine to run by priming the hand pump and it clears out and runs fine eventually. I have installed a new hand primer pump.

Apr 20, 2010 · That looks like an old TS-14A or TS-14B..... the rear sloping hood pretty much gives it away. I've always heard that the D6D was a staple machine of Caterpillar, as solid as any of 'em; though we've never owned one.