Other Vehicle/Vendor Parts That Can Be Substituted For BMW ...
Airhead Parts (R bikes to 1995)
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Borg-Warner regulator for Airhead regulator
Date: Sun, 19 Oct 1997 19:50:19 -0400 (EDT)
From: Al Peirson
The later model airhead twins are equipped with a higher output voltage regulator, which can be retrofitted to all models back to 1970, and costs $100 from your friendly BMW dealer.
I located a regulator at my local Pep Boys Auto Store, which can probably be obtained or ordered at any automotive parts house, which is a bolt right up, plug right in, replacement. The cost is $30. It is a Borg-Warner R-588 alternator regulator. It is electronic, and will fit all airhead twins 1970 to 1995.
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Neihoff regulator for Airhead regulator (2)
Date: Thu, 10 Jun 1999 10:04:42 -0400
From: Howard Etkind
Other direct fit replacements exist for the Airhead regulator...
A Neihoff WA 709 fits as well and both generic Bosch and Echlin parts. A decent auto parts counter person can cross reference against either the Borg-Warner R-588 or the Neihoff WA 709 numbers
Differences between stock regulator and Neihoff WA 709:
1. Chrome, not black and orange
2. Pigtail and external connector instead of plug in on regulator body
3. Mounted vertically and not L-shaped
4. Universally available and not only at BWM dealerships
5. $36.16 and not the $140 for the BMW electronic regulator
6. Electronic and not mechanical
Change out time was 15 minutes including tank and right saddle bag removal. Mechanically connected by two phillip head screws and had to remove one other module to gain access to the screw next to frame.
Fit was perfect, both mechanically connections and electrical connections. Bike is now charging 500 rpm lower than before. No more voltmeter cycling and charger HIGHER at highway speeds.
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AutoZone regulator for Airhead regulator (3)
Date: Mon, 11 Sep 2000 03:28:00 -0700
From: Lee A. Dickinson
AutoZone has an equivalent to the Borg-Warner R588 that is made in Mexico and costs $14.95. I have been running one without incident for several years. For $28 you could buy two and carry a spare. The best way not to need a spare part is to carry it with you.
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VW Bosch ignition coil for R90 ignition coil
Date: Sun, 26 Oct 1997 23:45:07 -0800
From: Max C. McHatton
The only one I know of is the ignition coils. I put two Bosch Blue high performance 6volt ignition coils on my R90, and noted improved starting, an increase in power and decrease in pinging.
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NAPA (BMW 2002) regulator, and VW oil pressure sender for Airhead oil pressure
Date: Sun, 16 Nov 1997 02:52:38 -0500
From: Don Eilenberger
Dunno if you caught it - but I did post a long time ago the replacement (NAPA auto parts) for the airhead voltage regulator.. don't have the number handy (it's out in the garage SOMEWHERE..).. but it's one off a mid 70's BMW 2002.. Direct plug-in replacement and provides a tad higher voltage to the battery.. cost about $30 or so.
If you don't have it yell and I'll rummage through the garage.
Also - airhead oil pressure senders - VW bug.. same sender. Not a real bargain since they cost about the same from a dealer (~$7) but handy to know if you need one when a dealer isn't open.. any autoparts place has 'em.
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Stromberg diaphrams for Bing carburetors
Date: Wed, 26 Nov 1997 21:03:15 -0800
From: Mort Harries
Yeah I guess I was a bit vague, so here's more specifics...
1. The article was in Aug 97 issue of the British mag "Classic Bike". It was a sidebar to an article on restoring a R90S. (lots of other interesting stuff in the article too)
2. The article said the Stromberg CD150 diaphragm fits a 32mm Bing, and a CD175 fits a 40mm Bing. (I have a R80/7 and the CD150 fit my bike's carbs)
3. The box the diaphragms came in had a label for "Carbu Corp. Fairlawn NJ 07410" but no address. It also read "DIAPHRAGMS FOR ZENITH STROMBERG CARBURETORS ZS-001"
4. You have to find a good auto parts store. I called 5 or 6 before I found one that knew what I was talking about, and they just happened to have some in the back gathering dust!
Editor's note: In another email, Mort added ...
I think it would be helpful and explain why to use this non BMW part:
The whole REASON for finding and using Stromberg diaphragms is that on certain R bikes (the R80/7 is one), the BMW dealer will not sell you the diaphragms alone, but will tell you that you have to buy the whole slide assembly with diaphragm attached. This is on carbs where the diaphragm is attached to the slide by a pressed-on nylon ring.
However this ring can be pried off fairly easily with a screwdriver and your fingers. Just be careful not to scratch the slide. The Stromberg diaphragm will then fit on precisely, and the nylon ring can be pressed back into place.
The slide/diaphragm assembly will cost you $40+ at the dealer. The Stromberg diaphragm will cost about $5 at a good auto parts store.
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Voltage Regulator, fits all airhead R: Bosch (Australia) RE57
Oil Pressure light switch, up to /7 at least: Bosch 0344101040
Honneywell sensor for R100 Hall Effect sensor
Date: Wednesday, March 25, 1998 4:48 PM
From: Steven van Twuyver
The R100 Hall effect sensor for the ignition cannister is available from Newark Electronics as part #96F1986 for around $11.48. It is Honeywell part #2AV54.
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FRAM Oil Filters for 1970-On Air Cooled Twins
Date: Tue, 01 Sep 1998 14:05:02 -0600
From: Jay Martin
All 1970 and later BMW motorcycles with horizontally-opposed, air cooled engines use one of three oil filters.
Bikes without factory oil coolers use either BMW filter
11 42 1 337 572 (unhinged) or
11 42 1 337 570 (hinged).
These filters have the same overall dimensions and are interchangeable; the one is hinged only to provide ease in changing. The FRAM filter substitutes are CH 6061 (unhinged) and CH 6060 (hinged).
Bikes delivered with a factory oil cooler use BMW filter
11 42 1 337 575 (hinged).
The FRAM filter substitute is CH 6062 (hinged).
Notes -- The above mentioned FRAM oil filters are available in many automotive supply stores -- sometimes special order -- or from motorcycle accessory vendors.
Some riders have experienced their unhinged filters collapsing, regardless of brand. The hinged equivalent is stronger and therefore less prone to collapse. However, a collapsed oil filter may be indicative of a more serious problem that warrants investigation.
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Wells Mfg. (VW) Oil Pressure switch for Airheads
Date: Wed, 20 Jan 1999 02:55:55 -0500
From: Dan Toth
Oil Pressure Sending Switch for most BMW "R" bikes.....
Wells Mfg. Corp. PS 102 Oil Pressure Switch is exact replacement for BMW switch and can be purchased from most auto parts stores as Volkswagon Beetle Oil Pressure Switch....
Cost me $2.98 + tx = $3.07
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VW Voltage Regulator, Starter Solenoid, Front Brake Switch for R100/7
Date: Thu, 16 Mar 2000 18:15:01 -0500
From: Andrew Clark
I'm also a dedicated V.W. gear head and I've noticed some part similarities. please place these in the r-bike parts substitute section.
PART SUBSTITUTES - 100/7
1. VOLTAGE REGULATOR - IDENTICAL to that found on all V.W. type 2 (vans, transporters, westies, etc.) 1968 to 1979.
2. STARTER SOLENOID - IDENTICAL to that found on ALL 12 volt AIR COOLED V.W.'s 1968 to 1983.
3. FRONT BRAKE SWITCH - IDENTICAL to the two prong brake switch used on ALL 12 volt AIR COOLED and early WATER COOLED V.W.'s. Three prong switches can also be used, just find the two prongs WITHOUT CONTINUITY to connect the two wires to.
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Borg Warner relay for Airhead horn relay
Date: 5/14/2003 1:33 AM
From: Steve Rankin
My horn relay recently quit on my '77RS. I found a relay to fit both the stock space and the stock plastic receptacle. I believe the horn relay was used only on 77-78 bikes but someone else may need this info in the future.
Oh, yeah, the part #.
Borg Warner R3020 Accessory Relay.
50 page that the part is available at .
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