![]() The seller is may be too light to push trees of any size. Use our high quality replacement parts to get more life out of your Komatsu D21 series crawler bulldozer. Hi Tbone, The series 5 is an old machine.It is a little smaller than Matts Furukawa & I reckon its a 70s model. Undercarriage maintenance should be a priority so make sure to use our quality undercarriage parts and your Komatsu D21 will stay out of the shop and on the job site working for you. Komatsu D21A-6 Komatsu D21A-6 Crawler Tractor Metric Units Dimensions Dimensions A Length W/ Blade 11.16 ft in B Width Over Tracks 5.29 ft in C Height To Top Of Cab 8.13 ft in D Length Of Track On Ground 5.53 ft in E Ground Clearance 0.97 ft in F Length W/O Blade 8.37 ft in Undercarriage G Track Gauge 4.3 ft in H Standard Shoe Size 11. In the Dozer section,there is a special thread about Komatsu D21s,etc.& other owners to help you. near center of the pump tag, 101452-31 (last two digits too badly damaged) Under that number is a complete number, 172P205011. This machine features single-lever steering for speed and directional changes, an easy to see instrument panel, an operators cab that is big enough to completely walk through, and an open air design that allows the operator to enjoy some fresh air on the job. Please fill out our parts request form for price and availability or give us a call at 1-80 to get an immediate quote from one of our Undercarriage parts specialists. Pump, unfortunately some of the numbers on the pump have been damaged and are unreadable, Upper left on the pump tag, 11. Find equipment specs and information for this and other Crawler Dozers. ![]() Safety and efficiency are a priority for Komatsu. 5.4 in (13 cm) Specs for the Komatsu D21A-6. The Komatsu D21 Crawler Dozer is an operators dream machine perfect all size jobs. Also for the Komatsu D21 series dozer, we supply remanufactured, used, and aftermarket component options that may qualify for same day shipping. Our undercarriage parts are backed by an industry leading three-year, four-thousand hour warranty. I got a good bee story but that's for another time.We offer undercarriage parts and complete undercarriages for the Komatsu D21 Crawler Bulldozer. tried turning it with the levers but one track was not enough to pull it around so eaiser to just reposition and hook the one chain and we were good to go. We got hung up one time sort of mound of ground that the front dug into but just repositioned the dozer and spun the tracks for about 3 seconds and we were off again, mow making turns I had to only use one chain on the corner and get the dozer pointed the right way and it go. Put 2 chains and hooked them up pulled the throttle to 3/4 power and eased the clutch and just like we were off, I was really surprised how easily it pulled it. Ground was solid clay/caliche so I knew I get good traction. Had a neighbor who does odd jobs for people for some extra $$ I due the same thing, he called me up and was wondering if the dozer could move a 40ft overseas connex, hmmm I thought well those weigh in about 10200 empty and the lady told him there was some furniture and other things in there so I said all we can due is try and it will move it or not. Any suggestions would be very much appreciated! Komatsu D21A Bulldozer Parts New Aftermarket, Used and Rebuilt D21A Parts Looking for Komatsu D21A Bulldozer parts Youve come to the right place. Komatsu D21A-7 Bulldozer, reads 3558.3 hours,85' Blade, 11 Rubber Tracks, 4 Cylinder Komatsu 4D95S-1 Diesel Engine, 2 Speed Manual Transmission, Starts Consignor Notes: 58 Hours on New Tracks. I am fairly sure the actual pump itself should be OK but with the shut-down/fuel cut-off being an integral part of the pump body and actuated internally by the throttle lever (no electric shut-off solenoid or separate shut off lever) I am not sure how to even check this, of course at this point I am simply guessing at the problem. I suspect a failure of the shut-down/fuel cut-off in the pump maybe? Any suggestions on what to do next? This dozer was running just fine when I last shut it down but now two weeks later when I attempted to start it I am getting plenty of fuel to the injector pump but ZERO fuel to the injectors. Obviously a lack of fuel to the engine so to make a long story short it is getting plenty of fuel out of the filter and makes it all the way to the injector pump inlet but that's it, I can open the lines coming out of the pump going to the injectors and get nothing not even a dribble. I parked my D21 for about two weeks and when I came back to put it back to work it would not start, cranks over just fine but not a wisp of smoke from the exhaust.
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