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Complete list of all o-rings (by size & by part number) to buy when ordering parts

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136K views 65 replies 16 participants last post by  trickstar  
#1 · (Edited)
Complete list of all o-rings (by size & by part number) to buy when ordering parts

I was ordering oil filters today when I realized I should have a ready-made list of o-rings by part number to get while I'm already ordering other stuff (not just for oil changes but for all maintenance jobs).

It was untimely, while on the phone, coming up with the part numbers on the fly for optonal o-rings, so, I belatedly realized that it would have been useful to have a ready-made list all the o-rings we might wish to keep in mind to get the 'next' time we're already buying parts.

Here's my starter list below - but the point of this thread is for others to ADD other necessary maintenance o-rings (& rubber o-ring-like gaskets) for adding to existing orders and to keep in stock in the garage.

NOTE: Please make sure the part number and the size & quantity needed is listed!

  • Two small o-rings on the bottom of the oil filter stem
  • Two small o-rings at the top of the oil dipstick,
    • 11431717666, 9mm ID x2.2mm Thick (Quantity=2) $0.73 each
  • Large o-ring on oil filter cap (usually comes with the oil filter)
  • Large o-ring at the bottom of the dipstick guide tube
    • 11431740045, 19.5mm ID x3mm Thick (Quantity=1) $1.81 each
  • Power steering cap o-ring
  • Lower radiator hose coolant temperature sensor o-ring (p/n is for the air temperature sensor in the intake manifold)
    • 13621743299, 8mm ID x 3mm Thick (Quantity=1) $1.25 each
  • Oil filter housing oddly shaped gasket
  • DISA o-ring gasket
EDIT:
By way of example, here are current prices from 4wheelsautoparts (which I assume are typical out there):
- 2 x Oil Filter Stem Seal, Lower (11427549573) = $3.64 ($1.82 each)
- 2 x Oil Dipstick Seal, Upper (11431717666) = $1.30 ($0.65 each)
- 1 x Oil Filter Kit, including O-ring, copper seal, and Mann filter (11427512300) = $4.60
- 1 x Oil Dipstick Seal, Bottom (11431740045) = $0.56
- 1 x Oil Drain Plug Bolt (11131273093) = $1.74
- 1 x Power Steering Reservoir Gasket Ring (32411128333) = $1.49
Click to expand...

 

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#13 · (Edited)
doru said:
CPS to engine O-ring p/n 12141748398 (Item #9)
CPS O-ring (Intake & exhaust) p/n 12141748398 (Item #6)
Click to expand...
EDIT: I just realized that all the confusion may be due to the fact that one of these "CPS" above may actually be a CKP (crankshaft) while the other two are CPS (camshaft)!

Interestingly, here is a picture of a reputed CPS o-ring gone bad just now reported today:
Image


These photos from this thread show the M54 intake CPS & exhaust CPS locations:
Image


A good picture of the CPS o-ring is in this thread:
Image
 

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#6 ·
crazy4trains said:
how to get the PS reservoir O-ring installed
Click to expand...
This isn't really the thread for that; the right thread for that would be found by typing /power steering F3 in the bestlinks, which comes up with this:
- How to remove and replace the power steering cap o-ring (1) (2)
Image
 
#7 ·
Interesting thread. :thumbup: I have ignored (or more to the point, been ignorant of) these o-rings completely. Are there any recommended change intervals for these o-rings from any reputable source? I don't remember seeing any guidance in Bentley's. And I hate looking through the TIS. Mine are all probably original. Another thing(s) to replace...
 
#8 ·
Fudman said:
Interesting thread. :thumbup: I have ignored (or more to the point, been ignorant of) these o-rings completely. Are there any recommended change intervals for these o-rings from any reputable source? I don't remember seeing any guidance in Bentley's. And I hate looking through the TIS. Mine are all probably original. Another thing(s) to replace...
Click to expand...
I know last summer when I changed the O-rings on the distribution piece, they were hard as rock. Literally. The new ones are a tad softer - they are hard to replace.
They do deteriorate in time, sometimes it's a leak (like the oil leak by the CPS). Sometimes it's vacuum leak (DISA). BTW, Gary's O-rings work well, BUT: make sure you lube them lightly, then when you re-install the DISA, be VERY GENTLE in pressing it in. You have to actually rotate it back and forth and press it very gingerly in. Otherwise, the new O-ring will shear. Ask me how i know.
The PS O-ring, once you start seeing ATF on the canister - it's a dead givaway. I always thought it's soiled because of the vent hole. I was wrong. Since I change that sucker, I never had a drop of the red stuff staining the canister.
 
#15 ·
S
#18 · (Edited)
I searched realoem for O-ring. The search returned a list parts with the term "ring" in the description. I edited the list to include only the descriptions with the term "O-ring". Hope this helps.

Here's the list:

Part 12141748398 (O-ring) found in: Engine Block Mounting Parts
Part 11361703713 (O-ring) found in: Cylinder Head Vanos
Part 12141748398 (O-ring) found in: Cylinder Head Vanos
Part 11511711484 (O-ring) found in: Waterpump - Thermostat
Part 11431717666 (O-ring) found in: OIL PAN/OIL LEVEL INDICATOR
Part 11431740045 (O-ring) found in: OIL PAN/OIL LEVEL INDICATOR
Part 11421741000 (O-ring) found in: Lubrication system-Oil filter
Part 11421744001 (O-ring) found in: Lubrication system-Oil filter
Part 11427549573 (O-ring) found in: Lubrication system-Oil filter
Part 11531435808 (O-ring) found in: Cooling System Water Hoses
Part 11417507429 (O-ring) found in: Lubrication system/Oil pump with drive
Part 11411722837 (O-ring) found in: Lubrication system/Oil pump with drive
Part 13621743299 (O-ring) found in: Intake manifold system
Part 11617502761 (O-ring) found in: Intake manifold system
Part 12141748398 (O-ring) found in: Sensors
Part 12141748398 (O-ring) found in: Sensors
Part 13711720540 (O-ring) found in: Intake muffler
Part 13641437487 (O-ring) found in: VALVES/PIPES OF FUEL INJECTION SYSTEM
Part 13641437486 (O-ring) found in: VALVES/PIPES OF FUEL INJECTION SYSTEM
Part 13531720251 (O-ring) found in: Fuel filter, pressure regulator
Part 13531720252 (O-ring) found in: Fuel filter, pressure regulator
Part 17211742636 (O-ring) found in: TRANSMISSION OIL COOLING
Part 24201423387 (O-ring) found in: A5S325Z lubrication system
Part 24311422806 (O-ring) found in: A5S325Z lubrication system
Part 24201217321 (O-ring) found in: A5S325Z Output
Part 24341421736 (O-ring) found in: A5S325Z wiring/oil filt./pulse generator
Part 24101423176 (O-ring set) found in: A5S360R/390R ctrl unit with mount.parts
Part 32321094182 (O-ring) found in: STEERING LOCK/IGNITION SWITCH
Part 17211742636 (O-ring) found in: HYDRO STEERING-OIL PIPES
Part 33117525064 (Screw plug with O-ring) found in: Final drive, gasket set
Part 34311165092 (BRAKE MASTER CYLINDER O-RING) found in: BRAKE MASTER CYLINDER/EXPANSION TANK
Part 34311165092 (BRAKE MASTER CYLINDER O-RING) found in: Power brake unit depression
Part 64118385686 (O-ring set) found in: HEATER RADIATOR AIR CONDITIONING

EDIT: added files, remove .pdf.
 

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#19 ·
Steve530 said:
Here's the list:
Click to expand...
Thanks for that list.

It would be nice if a supplier puts together a kit for our E39s.

I can see them making a profit because, in bulk, the o-rings are pennies, whereas they can charge us a buck or so, and the kits won't take a lot of room on the shelf, and can be easily adapted for other vehicles.

By way of update, my rubber "kit" arrived today, complete with a few extra sets of the hard-to-find 441 (61610154441) wiper blade inserts and a spare oil bolt & crush washer, in addition to the list of o-rings earlier discussed in this thread, each in their own labeled baggy.

Image
 
S
#20 ·
Looks like you got a new HID lamp, too.

I've attached the list I posted above, supplemented with parts listed as gasket seals and sorted by application. It's a PDF file. If anyone needs the spreadsheet, PM me.
 

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#21 · (Edited)
Steve530 said:
I've attached the list I posted above, supplemented with parts listed as gasket seals and sorted by application.
Click to expand...
Wow. Very nice. This is a complete 'kit' for a supplier to create for us, since most of our o-rings are a decade old by now. We could then put the kit on our garage shelf, and, whenever we're taking apart something nearby, we'd have the handy o-ring to replace.

For example, when doing the CCV, we could do the CKP and CPS o-rings, in addition to the lower dipstick tube o-ring.

Steve530 said:
Looks like you got a new HID lamp, too.
Click to expand...
You're observant! I sat down to open the box that came in the mail, and as I laid everything out to compare to the invoice, I snapped the photo, so I hadn't thought of mentioning the bulb.
I bought the bulb because my low beam indicated it was out. Funny thing - the moment I pulled the old bulb out, it lit right up in my hands.
So now I have an extra H7 bulb, just in case, to stock along with my o-rings.
Oh well, it will eventually get used (as long as I don't lose it, which I am wont to do).
Hmmmm...
Maybe we can open a separate thread, that references this thread for o-rings, that lists all the "stuff" that we can stock to put on the shelf - that our ten year old bimmers are gonna eventually need.

EDIT: I opened this thread for all "stuff" that we probably should stock in our garage:
- Complete list of E39 stuff (parts, tools, fluids) to stock for handy eventual use

Image
 
C
#25 ·
I don't know if anyone has suggested this yet, but for the DISA, you can get square-cross-section o-rings of almost any material you like.

For example
https://www.mfpseals.com/catalog/ca...ory/13/o-rings-backup-rings/o-rings/square-cutbr-ring-strongbn70strong-nitrile-

And, of course, you can get round-cross-section o-rings at lots of places too, for the VANOS or for other parts
1. (easy to use oring warehouse calculator)
2. the o-ring store
3. mfp seals
4. orings usa

What we need is a list of the "trade sizes" for each of the replacement orings, and the material.
1. http://www.allorings.com/size_cross_reference_framed.htm
2. http://www.marcorubber.com/sizingchart.htm
3. http://www.broadleyjames.com/o-rings-size-chart.html
 
#26 ·
#27 · (Edited)
There is an excellent thread on the generic sizing of the power steering O-ring here today:
> E39 (1997 - 2003) > What are the dimensions & material of the power steering fluid reservoir cap o-ring?

Here is the summary result:

bluebee said:
I noticed the metric size used by some is 2.5mm thick instead of 2mm thick, so, is this yet the correct summary, in priority order?

  1. BMW Part #32 41 1 128 333, manufactured by ZF Lenksysteme GmbH (is the original 32411128333 Buna-N or Viton?)
  2. M2.5x42, 75A Shore Durometer, Viton
  3. M2x42, 75A Shore Durometer, Viton
  4. AS568A dash 131 (O-131), 75A Shore Durometer Viton
  5. Any of the above, in Buna-N, instead of Viton rubber (and in any hardness)
Click to expand...
Image
 

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M
#28 ·
Great thread here.! I was hoping if anyone knew the correct oring size for the quick connect coupling seen on the ends powersteering and transmission cooler hoses?

There are a couple of o-rings that sit inside the fitting. My transmission cooler hose is weeping and I was hoping just to change the o-ring and not the entire hose.

Image


Image
 
#29 ·
#30 ·
For the record, this came up today;
> E39 (1997 - 2003) > Power Steering Cap O-Ring
helmet75 said:
There was a post regarding a better o-ring for the power steering cap and although it was a few years ago, I was wondering if anyone had a spare ring for sale.
I can't justify going to Baron BMW here in KC and I have checked many stores to find the specific size (M2.5x42 75A Shore) outlined in those posts and had no luck. I could only find M3x42 50A and I know it will not stand up to the rigors of the engine compartment heat nor the fluid eating it.
If someone has one to part with, please let me know and we can work out paypal options for payment
Click to expand...
See also:
- Glovebox printouts for emergency use (1) and how to save $ money to qualify for free shipping on UPS/DHL/USPS/FedEx by stocking O-rings & gaskets & bulbs & vacuum hoses & fuses & wiper blade inserts & belts & bearings & oil filters & cabin air filters & engine air filters & fluids in your garage whenever ordering from the recommended parts suppliers.
 
#31 ·
Interesting thread. In all my years of wrenching on cars I have NEVER ordered parts by part number. Every time I just give the parts guy make, model, year and engine size and he does the rest. If there is any question, the VIN number resolves it. In the case of a standard washer, o ring, nut or bolt you can eaither measure the required size yourself or take it in and the parts guy matches it. Never had an issue with on line orders eaither. That's what part stores are for.
 
#32 ·
Flybot said:
Interesting thread. In all my years of wrenching on cars I have NEVER ordered parts by part number.
Click to expand...
O-rings are a bit different, because I can't imagine calling up a BMW parts guy, and then having *him* source them for you, one by one over the phone. They'd kill you if you asked for the fifty cent o-ring here, and the twenty-cent o-ring there and the ten cent o-ring there, etc. After an hour on the phone, he'd have an order totaling about ten bucks!

Plus, we all know the propensity of BMW to use the wrong material for the o-rings.

So, it makes sense to know the SIZE of the o-ring, and then order from an o-ring supplier, the best materials, at the list of sizes here.

It just takes collecting the sizes together into a single list, which, if we work together, we can do.

Someone might even make money collecting a set of the o-rings needed, and selling them as a set.
I've even thought of that myself, but I don't know if it would be worth the effort.
 
#33 ·
There is a good discussion of whether it's the o-ring or the q-tip which stops the misting (personally, I find it to be the o-ring) and how long that o-ring lasts, over here, today:
> E39 (1997 - 2003) > Power steering reservoir
danlau said:
Hi, I have a 2003 BMW 525i, and I notice that there is a small leak of power steering fluid. It seems to come from the ventilation hole on the cap of the reservoir. I wonder if I need a new reservoir.
Click to expand...
Image

See also:
- Glovebox printouts for emergency use (1) and how to save $ money to qualify for free shipping on UPS/DHL/USPS/FedEx by stocking O-rings & gaskets & bulbs & vacuum hoses & fuses & wiper blade inserts & belts & bearings & oil filters & cabin air filters & engine air filters & fluids in your garage whenever ordering from the recommended parts suppliers.
 
#34 · (Edited)
It should be noted that the canonical thread for the E39 VANOS o-rings size (only!) is here:
> E39 (1997 - 2003) > Would the next person who takes apart their VANOS please measure the o-rings?

  • ? #03, O-ring for Vanos Solenoid Switch, 21.0 x 2.5 mm, (Q=? per camshaft) BMW P/N 11361703713 ?
  • ? #10, O-ring for Vanos Blind Plugs (small), ? x ? (Q=1 per camshaft) BMW P/N 11361433513 ?
  • ? ##, O-ring for Vanos Piston (large), 23.52 x 178.0 mm (Q=1 per camshaft) BMW P/N 11361318788 ?
  • ? ##, O-ring for Vanos Piston (small), 14.5 x 1.8mm (Q=1 per camshaft) BMW P/N 11361403191 ?

Image

Image

See also:
> E46 (1999 - 2006) > VANOS seals dimensions
 

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#35 · (Edited)
For those who want to remove the waterpump, for whatever reason, and put it back, this thread shows that we need to figure out the gasket size:
> E39 (1997 - 2003) > Water pump gasket?
ninetyseven1 said:
Does anyone know if they make a rubber water pump gasket for our 540i's? This is the second time I have installed the new water pump and it still leaks. I used the paper gasket that came with it and a light bead of the orange hi temp RTV on both sides, let it sit for like 15 minutes and then installed the pump, tightened up the bolts , waited again a few minutes and then torqued them. Why the hell does this thing leak?? Is there a good factory gasket out there that requires no RTV?
Click to expand...
I don't remember putting any goop on mine (here's a picture before putting my water pump back on):
Image

But, what we're talking about is obtaining the size for this o-ring shown below:
Image
 
#36 ·
This thread shows another o-ring we might have missed measuring, to date:
> E39 (1997 - 2003) > Topping off coolant...
(although most of us would replace the entire radiator nipple, which comes with the o-ring).
Image
 
#37 ·
More information about second sourcing o-rings is here today, showing that it's better to plan ahead, than to replace fuel injectors and CCVs and dipstick guide tubes without replacing the o-ring the first time because you don't have it:
> E39 (1997 - 2003) > Where is the Fuel Pressure regulator?

allenwilson33 said:
I have cleaned the fuel injectors and their seats in the fuel rail, being careful not to knock debris inside. Still need new o-rings.

Replaced CCV valve and connecting hoses. Still need new o-ring for oil dipstick.
Click to expand...
allenwilson33 said:
O-rings from dealer are $5 each, with 12 needed to fit an i6. I'll go generic from the hardware store for a total cost under $6 rather than dealer cost of $60.
Click to expand...
 
#38 ·
It looks like people are replacing the o-rings in the bottom two expansion tank holes, so, if someone knows the size for them, please list so we can add to our compendium:
> E39 (1997 - 2003) > Will the next person who replaces his expansion tank please cut it open & compare?

Speedex750 said:
So, after fitting new O rings to the two bottom tank connections, it's all been installed. Lubricating the various O ring connections on previous changes has made getting the tank separated and replaced a more reliable smooth process.
Click to expand...
 
#39 ·
Cn90 appended good information to Doru's fuel injector o-ring thread:
> 5 Series DIY > Injectors replacement and/or servicing DIY (E39)

cn90 said:
For 1998-1998 M52/M62 engine, the fuel injector O-ring is 13641730767.
Realoem lists "quantity required = 6".

But from looking at photo of the fuel injector itself, there are two (2) O-rings/injector.
Does anyone know the PN for the lower O-ring?
Image
Click to expand...
EDIT:
I'm trying to get a handle on the o-rings and gaskets needed for a VCG and VANOS tandem job...

Rubbery parts for an M54 VCG include:

  1. valve cover gasket set (< 09/02 11-12-9-070-990, >= 09/02 11-12-0-030-496) $34.26/each, (this timepoint recommends the Ajusa brand of VCG) Note the VCG goes on dry most of the time (glycerin may help if needed for slipperiness)
  2. spark plug tube seals (required) (this timepoint shows how to tell if your VCG and spark plug tube seals have failed)
  3. valve cover bolt grommet, needs 15 (11-12-1-437-395) $1.73/each,
  4. dialektric grease on the spark plug boot (timepoint on the video describing this)
  5. oil fill neck gasket (11-12-7-526-447) 2.29/each
  6. SAS plastic pipe & SAS rubber tube (an old one is sure to be brittle)
Realoem 2002 BMW 525i => 11 Engine => 11 15 Cylinder Head => CYLINDER HEAD COVER

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