![]() Prices shown are estimates and will vary. Click to Start a Caterpillar D4 Part Quote Online OR call 1-80. ![]() Give us a call, submit an online quote request or select a category below to browse/select a part. The Caterpillar D4 was used as the base tractor for the Trackson built loader that was known as the T4 or Traxcavator shovel. FOPS, scrub canopy, new brakes and clutch, strong hydraulics, runs and operates great. We sell a wide range of new aftermarket, used and rebuilt D4 replacement parts to get your machine back up and running quickly. Caterpillar D4 - 1945-47 (5T) with 4-cylinder D4400 engine.Caterpillar D4 - 1943-45 (2T) with 4-cylinder D4400 engine.Caterpillar D4 - 1939-43 (7J) with 4-cylinder D4400 engine.Caterpillar D4 - 1937-39 (4G) with 4-cylinder D4400 engine.Caterpillar RD4 - 1936-37 (4G) with 4-cylinder D4400 engine.The later D4 series engines quickly increased in power, so the number "4" just became a figure of merit rather than indicating actual engine power. Please Log in or Create an account to join the conversation. Have also seen spacers under the carrier roller to take up a little extra slack. The most common trick was to add spacers between the idler and the yokes, with longer bolts to attach the idler. The D4 U series was fitted with the more powerful D315 engine. Replied by Glum on topic D4 7U track adjustment. At the time of introduction of the RD4, the D4400 engine produced about 43 horsepower (32 kW) at the drawbar so the 4 indicated the relative engine power. Sold by Peaceful Creek Supply and ships from Amazon Fulfillment. In 1937 the "R" was dropped, and just a "D" was used for the diesel versions. This item: Cat Caterpillar D4 Tractor Service Repair Manual Shop Book 4G 7G 2T St 6U 7U. In 1935 Caterpillar had started the naming convention of "RD" for diesel or "R" for regular gasoline, followed by a number to indicate the relative engine size. The RD4 originally weighed in at 10,000 pounds (4,500 kg), and used Caterpillar's D4400 engine, an inline four-cylinders, with a 4.25 by 5.50 inches (108 mm × 140 mm) bore and stroke. The Caterpillar D4 track-type tractor is a small bulldozer manufactured by Caterpillar Inc.Ĭaterpillar first introduced the RD4 in 1936 as the diesel follow on to the successful CAT 30 gas model. Small bulldozer Caterpillar D4H LGP (Low Ground Pressure) model, Eschborn, Germany.
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