wateka
Well-known member
- Joined
- May 25, 2022
- Messages
- 139
I am overhauling my 853 control valve and in trying to order spool seals, came across a reference in the Bobcat parts website to BTI374. It talks about some lip seals no longer being made and using quad ring seals instead. I couldn't find the bulletin via Google so my dealer emailed it to me and I'm putting it here in case others need it.
BOBCAT TECHNICAL INFORMATION BULLETIN
Bulletin #: 374
13 January 2006
Hydraulic Control Valve Spool Seal Replacement
MODEL
440, 443, 450, 540, 542, 543, 553, 641, 642, 643, 645, 741, 742, 743, 753, 763, 773, 7753, 843, 853, 1213, 1600, 2000, 2400, 2410
DESCRIPTION
The spool seals (P/N's 6632204, 6632256, 6659554 and 6665846) are no longer available.
Replace with:
6646372 Quad-Ring Seal
6665089 One - Sided Lip Seal
6683274 Two - Sided Lip Seal
BOBCAT TECHNICAL INFORMATION BULLETIN
Bulletin #: 374
13 January 2006
Hydraulic Control Valve Spool Seal Replacement
MODEL
440, 443, 450, 540, 542, 543, 553, 641, 642, 643, 645, 741, 742, 743, 753, 763, 773, 7753, 843, 853, 1213, 1600, 2000, 2400, 2410
DESCRIPTION
The spool seals (P/N's 6632204, 6632256, 6659554 and 6665846) are no longer available.
Replace with:
6646372 Quad-Ring Seal
6665089 One - Sided Lip Seal
6683274 Two - Sided Lip Seal