XPB Thermostat source?

[KWKloeber]

Has anyone located an aftermarket Tstat (both 180F and 160F) for the XPB?

Again this is not the XP which take a different TStat.

Stu, I thought you had added the XP engine Tstat X-references to the Wiki, but I can't locate them under engine > cooling.


Ken K

[Stu Jackson]

Ken,

http://c34.org/bbs/index.php/topic,3212.0.html

For the XPB, consider asking the C310 skippers at co.com.

[Ron Hill]

Guys : If you want a thermostat for an XPB, just ask the Kubota dealer for one for F2400 or F2560 tractor engine!!

[KWKloeber]

Ron,

I'm not sure that would work.

Westerbeke changed the thermostat size after a serial number break.  Trying would trial/error, but doable.

But the main question is I am looking for a 160F thermostat and tractors don't run at 160F!

Ken

[Ron Hill]

Ken : My M25XPB (2009) came with a 160 degree thermostat. 
However, it was set up for a temperature switch rather than a sender. So left the switch probe in place and added a sender from a D950 block.

A thought

[KWKloeber]

Ken : My M25XPB (2009) came with a 160 degree thermostat. 
However, it was set up for a temperature switch rather than a sender. So left the switch probe in place and added a sender from a D950 block.

A thought

Ron,

That's VERY odd.  Both a Hi Temp switch and a Temp Gauge sender was OEM on the XPBs.
Didn't you have a temp gauge on your panel?

Yes "all" XPBs come with a 160F, but that's not an OEM Kb Tstat (or at least haven't yet located a Kb part number for a 160F.) That's the Universal "marinized" substitute.  On tractors, Kb's Tstats are 180F.

Do you have any knowledge why Wb changed from the 1/4" NPT temp sender (M25 / XPs) to the 1/8" NPT sender and used a reducing bushing?  Seems strange -- only thing I can think is, owners found the sources for the 1/4" senders, and Wb trying to re-monopolize, switched to the 1/8" NPT.

Was your gauge sender from a D960 block (tractor) or from an XP engine? 
I am thinking that the Kb tractor senders = the Wb/Universal/Teleflex/Vee Three/Sierra senders.

Ken

[Roland Gendreau]

Catalina direct carries the the thermostat for the XPB

http://www.catalinadirect.com/index.cfm/product/2875_71/diesel-engine-thermostat-set-late-model-b-series.cfm

[KWKloeber]

Again, an aftermarket Tstat (160F) for the XPB.
Not the OEM $53.30 Wb Tstat or the marked up $54.40 CD Tstat.

Ken K

[Ron Hill]

Ken : On my 2009 M25XPB the only temp item was a switch in the thermostat housing!!
 
I used the same Catalina panel and yes there was the temp gage.  As I've mentioned a number of times, I wired the entire new engine to match the old M25XP wiring!

I got the new temperature gage sender from the local Kubota dealer!!

[KWKloeber]

Ken : On my 2009 M25XPB the only temp item was a switch in the thermostat housing!!
 
I used the same Catalina panel and yes there was the temp gage.  As I've mentioned a number of times, I wired the entire new engine to match the old M25XP wiring!

I got the new temperature gage sender from the local Kubota dealer!!

OK, Now I get it!   It was a 1/4" npt gauge sender and it fit ok, no probs? 
(Because the Wb part for the XPB sender is 1/8" npt.)

Ken