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301.5 cat excavator hydraulic oil type

Randy digger · 2023-04-17 21:10

Hi My cat 301.5 I was wondering what type of hydraulic oil it takes.I want to change the oil on it. I believe it’s a 3wy 00850 series Thanks

Replies3
  1. #1Nige2023-04-18 08:37

    SAE10W. Is the Operation & Maintenance Manual missing from the pocket in the back side of the operator seat.? If so you ought to get a replacement, they are around $50.

  2. #2Randy digger2023-04-22 11:45

    Thank you for responding There was no manual with it I am going to order one

  3. #3Nige2023-04-22 11:56

    If the 3YW00850 Serial Number is correct the manual is Cat Pulbication reference SEBU7152. Here's a genuine one at slightly under list price - https://www.ebay.com/itm/304195635134