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Thermostat Housing Retainer
Fits 41-52 Jeep & Willys with 4-134 L engine

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Thermostat Housing Retainer
Fits 41-52 Jeep & Willys with 4-134 L engine
Replacement Thermostat Housing Retainer

Proper replacement thermostat retainer. Holds thermostat in place inside the housing.

Application:
4-134 L engine

Fits:
41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
50-52 M38
46-49 Truck
46-49 Station Wagon
48-49 Jeepster
Item # Price
639651
$7.99

Availability: In stock

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Questions: does the thermostat housing retainer go over the thermostat or under the thermostat?
Question By: peter on Sep 17 2017 3:27 AM
This hold the thermostat up in place in the housing. The spring goes down on the thermostat.
Answer By: Willys Jeep Parts Tech on Sep 18 2017 5:50 AM
Questions: Did the F134 Hurricane on a 1959 CJ5 have this? or was it just the L's?I don't see the year listed... Perhaps the thermostat just sat directly in the housing? Thanks!
Question By: Carl Gescheider on Aug 17 2017 5:37 PM
No, they didnt have it. It just sat in there. Thanks!
Answer By: Willys Jeep Parts Tech on Aug 17 2017 11:07 AM
Questions: Help? Apparently my M38A1 did not have this - on an "F" head engine. Any pictures/diagrams on how this is installed to help hold the thermostat? (Yes, it should be simple... Mine may be weird or "custom engineered" by previous owners...) Many thanks!
Question By: Jon McEachron on Dec 7 2016 6:19 PM
This thermostat retainer 639651 is only used on the L head flat engines. On the F engine (overhead) such as in the M38A1, they didn't use a retainer. The thermostat just sat directly in the housing and head.
Answer By: Willys Jeep Parts Tech on Dec 7 2016 10:22 AM