Specifications

Miscellaneous
27
Section 8
Miscellaneous
Improved Breather Hoses
Recent reports of cracked or deteriorating breather hoses on
Command, Aegis, and Courage engines have prompted a
material change. A previous material change in 2004 has been
found to be inadequate in some applications for long term
reliability.
New hoses with improved ozone protection have been
developed and carry new part numbers. Please refer to the
chart found on Service Bulletin 279 in Section 10 for the cross
reference to the new breather hose part numbers.
All engines should be routinely inspected for deteriorating or
cracking breather hoses. If the engine is within the warranty
period, replace any cracked or deteriorated hoses with a new
breather hose.
Cracking or
Deterioration
Cracks in Breather Hoses
Low-Permeation Fuel Line, Bulk Roll
Low-permeation, fuel line is now available in 25’ bulk rolls. The
This 1/4” R-7 line is Part No. 25 111 39-S.
Exhaust Studs Removed
Starting October 2006 the exhaust studs were removed from
the Courage Single and Twin cylinder heads. The tapped hole
has also been changed from a metric thread to 5/16”-18 to
accommodate the majority of OEMs.
Service heads will not use studs and will be supplied with two
5/16”-18 bolts. Instruction sheet TT-5183 has been written to
warn against transferring or installing new metric studs into
the new service head.
5/16-18
Threads
New Exhaust Stud Threads
K-Series Anti-Dieseling Solenoid
Solenoid 45 435 02-S used on K341AQS spec 71169 for John
Deere has been discontinued both at Kohler and John Deere. A
replacement solenoid can be found at NAPA under Part No.
2-2026.
Change in Kohler Special Tools Program
Kohler Engines, along with two outside suppliers will now be
the primary sources for most of the special tools offered for
engine servicing. Only those tools with Kohler Part Numbers
will be available through Kohler Co. All other special tools are
available directly from the supplier listed. See Parts Bulletin
228 in Section 10 for further information.