Retrofit pencil plug part number - PeachParts Mercedes-Benz Forum

kerry · #1 12-31-2008, 05:55 PM

Bosch 0 250 201 044-710
966 1st/Pc 955

Numbers on the box when I bought my kit for retrofitting pencil plugs to an engine with original loop plugs in 2002.

kerry · #2 12-31-2008, 11:32 PM

From another thread on the question:

"Pencil glow plug for loop-style engines is Bosch 80035; available at NAPA for $18.83 ea."

Biodiesel300TD · #3 12-31-2008, 11:49 PM

I just put pencil style plugs in my 240. The part number on the box is: 0 250 201 044. The Bosch number is 80035

mplafleur · #4 01-01-2009, 12:48 PM

Are there other part numbers for the pencil style retrofit plug?

I had come up with these numbers in my searches.

0 250 001 016
0 250 201 039
0 250 201 044

Is only the last one correct?

kerry · #5 01-01-2009, 01:05 PM

Don't know about the other part numbers but the 044 one is available here at Fastlane.

mplafleur · #6 01-01-2009, 03:40 PM

FYI

My son needed a couple of retrofit plugs, but bought the wrong ones.

I just looked at the part number

0 250 001 016 - Bosch 80003

This was the loop style.

soothappens · #7 12-09-2009, 11:13 PM

[QUOTE=kerry;2064432]From another thread on the question:

"Pencil glow plug for loop-style engines is Bosch 80035; available at NAPA for $18.83 ea."[/QUOTE

I went to napa today and checked on some plugs and gave them the 80035 number . He called around and found 4 on the east coast . He said that Bosch showed this as a discontinued / obsolete part number .

Any one heard of this ? If so are there any updates ? I would hate to revert back to the wire type.

spikesdiesel · #8 12-10-2009, 09:17 PM

I'm not sure if the 80035 is an old Bosch part number but if you search it on the web you can find them under that part number on for about $12.50 each . I'm quite sure they are the same plug as the Bosch 0 250 201 044 Duraterm . That is the plug that comes in the upgrade kit[0 250 201 955] . This plug pretty much upgrades any Mercedes with the old style loop plugs to the quick glow pencil style. . Here is a list as stated on the box the kit was shipped in :

W 115/8 [01.68-01.77]
200D,220D,240D,240 3.0

W 123 [02.76-07.80]
200,220,240,300D/TD- not listed but CD also I would think.

G 460 [03.79-07.80]
240D,300D

T1 [08.77-10.85]
207D,307D

L-Serie [01.71-07.77]
L206,L306,L406,L407

O 309 Serie
[01.67-08.82]

Unimog [04.63-12.76]
U406,U411,U421,U45,U55,U52,U60

OM 636-Serie
[01.61-12.71]

I saw on a Bosch web site where they stated that this kit works on many other vehicles using the old loop style with the 21mm wrench size .

I do know these Duraterm plugs run on 11 Volts . I'm not sure about the voltage of the old plugs.... anyone know? . I know a lot of people run them on their old relay[me included/79-300TD] but buying the upgrade kit with the updated relay might not be a bad idea .It does allow for up to a three minutes after glow . I have seen the whole kit for a 4 cylinder for $98.00 on the web recently . The instructions are next to useless . In fact my kit came with instructions for a five cylinder upgrade . Of course the first thing they said was- do the four cylinder instructions first ... If your doing a five cylinder upgrade with the new relay the instructions state ,
"Do not connect the glow plug of cylinder 5 with the glow plugs of cylinders 1 to 4 . Short circuit danger!."

I was trying to get the ," service kit" as it is called in some ads . Forget it, it is not to be found . It is supposed to be a kit with an extra 12V relay 0 332 002 156[for the fifth plug] ,a fuse holder , fuse , nut , and wire . Some ads make it sound like it comes with the kit .It doesn't . All suppliers [ including the ones for this site] told me all you need is the extra plug for the five cylinder upgrade. Well, doesn't seem that's quite right if you believe Bosch.
Bottom line , These plugs work great .Seven seconds of glow time and my car[250K and not the best compression] starts right up in 15-20 F weather .I did just put a brand new starter in that might help things and a huge Optima battery that is in peak condition . I also replaced my old battery cables and replaced the ground wire from the engine to the chassis .
Hope this information helps anyone looking into the upgrade .
Spike.

Lycoming-8 · #9 12-10-2009, 11:51 PM

The old series wired loop plugs are seeing about 1.5 to 2 volts drop each. The 12 volts from the battery is distributed across the 4 plugs in the engine, the 5th one in the dash, and also across the squiggly wires connecting the plugs in the engine. In a 5 cyl app, I suspect that the squiggly wires have a different resistance to compensate, but maybe not?? Anyway, the loopers are not designed to see the full 12 volt drop that the later parallel wired pin style see.

soothappens · #10 12-11-2009, 07:28 PM

I was just wondering if the plug is obsolete as napa stated . Is there a updated one or possibly an adapter for the smaller pencil type from the later models . These are easy to find . The retro type are the ones you need to order large bodied pencil type.

Spikesdiesel you have the right 10 digit number. when you buy them seperate theres a large number on the box 80035. They usually order it by the 10 digit one. napa said checking bosch's site they come up obsolete.

I already have the upgraded set up just wondering if whats left on shelves are all that are available.

whunter · #11 12-11-2009, 07:31 PM

Quote:

Originally Posted by soothappens

I was just wondering if the plug is obsolete as napa stated . Is there a updated one or possibly an adapter for the smaller pencil type from the later models . These are easy to find . The retro type are the ones you need to order large bodied pencil type.

Spikesdiesel you have the right 10 digit number. when you buy them seperate theres a large number on the box 80035. They usually order it by the 10 digit one. napa said checking bosch's site they come up obsolete.

I already have the upgraded set up just wondering if whats left on shelves are all that are available.

This price is per each glow plug
F1100-117786 Glow Plug Bosch IN STOCK

Have a great day.

soothappens · #12 12-11-2009, 11:57 PM

Thats it thanks !

kerry · #13 12-12-2009, 10:21 AM

Quote:

Originally Posted by spikesdiesel

. Of course the first thing they said was- do the four cylinder instructions first ... If your doing a five cylinder upgrade with the new relay the instructions state ,
"Do not connect the glow plug of cylinder 5 with the glow plugs of cylinders 1 to 4 . Short circuit danger!."

That explains an issue that came up about a month ago when someone was trying to do a 5 cylinder conversion using the original relay (I think). It would work with 4 plugs but not five. Wonder why that is the case?

spikesdiesel · #14 12-13-2009, 04:35 PM

I just checked my packing slip that my kit was shipped with . I ordered a fifth plug and on the slip it has the 80035 number on it also W0133-1629394 referring to it .I think like whunter said the number 80035 was on the plug box but I threw that box out and, yes the number on the plug itself was the 0 250 201 044 number .

I had to wonder why Bosch had to make the upgrade relay work only for a 4 cylinder application and why they couldn't make it work for both 4 and 5 . Maybe to optimize the current going to the plugs for the 4-cylinder set up . I know the kit comes with a replacement indicator light that is an LED to max the current to the plugs . If I read correctly these fast glow plugs draw LESS current than the old style loop plugs but get way hotter quicker . I would assume the new relay is designed to make them work at their best[as far as quickest heat up] where an old relay will do the job but maybe not as good ...? not sure . Maybe the wrong voltage into them isn't good for longevity either .I think I've spent way to much time thinking about this thing... I know my wife

thinks so .

If you are doing an upgrade with the relay you need to mount the new relay in the engine compartment even if your old one was under the dash . The timer in the relay is controlled by the heat given off by the engine and the wire coming from the sensor on the cylinder head to the relay[if you have one] is no longer needed. The new relay gives a three minute after glow if needed .
Hope this information helps anyone thinking about doing the upgrade . If you have old style loop plugs you will never be sorry you did the upgrade .
Spike.