B414 glow plugs

Ed Nelson

New User
Looking for help finding 12V plugs to replace the stock low voltage plugs. ie part#s, applications, or any other help in locating parts. Thanks.
 
I have 3414 with those low voltage plugs and it starts great, also have a MF35 23C diesel with similar setup that starts stinking hard

there is a recent post on Tool Talk and another under Ferguson, lots of good info, check the archives

you have to make adapters to fit the modern 12v (10mm 1.25) plugs into the larger holes in your cylinder head, those 12v plugs are very nice

easiest path is to fix the original setup, clean the connections on everything and make sure nothing is burned out, stock glow plugs are reasonable online and resistor (710348R2) is $44 on this site
 
The IH B414 uses the exact same glow plugs as a Mercedes 190D car. There are complete "fast heat" glow plug upgrade kits sold now for the Mercedes that direct fit the IH B-275 and B-414. No need for any adapters. Kit comes with four 12 volt plugs that get wired in parallel instead of series - and a controller.

Complete kit with four fast heat plugs, new wires, relay, controller, etc. is $144. Here's the parts list:

The complete conversion kit includes the following

* Heavy Duty Manual Relay
* Quality push button hole mount switch
* Mercedes factory 80 amp fuse holder
* 2 - 80 amp strip fuses
* Correct size and length of wire needed
* All terminal connectors required
* 4 Upgraded Pencil type Fast Glow Plugs
* Three New Glow Plug Wires
* Complete step-by-step illustrated instructions



http://www.mercedessource.com/node/8320

You can by the kit without the controller for $80 - $120. Here is one on Ebay -but I'm sure you can find cheaper elsewhere . . .

http://www.ebay.com/itm/MERCEDES-QUICK-FAST-GLOW-PLUG-KIT-190D-200D-220D-240D-/190579548413

And you could also just buy four plugs for $15 each and figure out the rest yourself.
 
If you order any Mercedes kits - make sure you verify the have the 18 mm glow plugs and not the newer smaller ones.

The correct fast-heat Bosch Duratherm plug to fit your B-414 is Bosch # 0250201044. Threads are 18 mm X 1.5 - just like your originals. Work at full 12 volts and draw 20 amps each when cold and taper to 8 amps each when hot.

You can buy just the plugs at $16 each at Amazon.com and several other places.

http://www.amazon.com/Bosch-0250201044-Glow-Plug-Fast/dp/B000GTNFWK
 

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