Anyone in Oldsmobile land got any of these Military spark plugs laying around the want to sell?

 

I have an NOS box of 10. Some rust on the hex, otherwise clean. I know they are hard to find.

 

 

message sent Many thanks

 

Sold. Thank you Jim.

 

Never seen them. What is their application?

 

Jeep probably.

 

This "style" spark plug(s) were/are common in the early days/evolution of military vehicles & aircraft (some motor vehicles). During a period of time when some vehicles/aircraft did or did not use a radiator (air cooled) or did not use a thermostat (most did, some did not). There existed good documentation on which heat range spark plug was best suited for the application.

This is a decent read of some applications...

https://forums.g503.com/viewtopic.php?t=315525

 

Interesting, thanks.

 

1955 M 38 A 1 jeep. 24 volt electric system with optional Fording system [waterproof ignition ] Takes 2 wrenches to remove spark plugs. Naturally discontinued and hard to find. The "Substitutes " just aren't as good

Norm with Radiator

 

That does look kinda fun.

 

Jim - I watched that video before I left to evaluate the jeep for you. Pretty cool.

 

Delivered today. MANY thanks

GREAT SELLER