Buy & Sell

Judson Rotors & Marvel Oiler Bottles & Marvel Oiler Transfers - Details on This Page.

If you're looking for a Judson Supercharger and you're not sure what questions to ask or what components make the full kit, read the "Buyers Guide & Check List" by clicking on the heading above, print it out and take it with you when you go to view.

Friends of The VW Judson Register

Well you're all friends really but the following "Restoration Services" (shown in the black boxes) are the lifeblood of the Judson fraternity. 
Those whose services are shown are recommended without reservation. They all have a proven and trusted track record. They keep our superchargers and VW engines running sweetly and, to varying degrees, can supply all the spare parts and restoration services you need. 

Restoration Services

Alejandro Martin - Brussels, Belgium. Email: almar9@hotmail.com     Alejandro can usually supply from stock, VW Judson 36 and 40hp supercharger kits. All supercharger kits consist of either original Judson parts or exact copies manufactured to the highest standards.

click here for parts and price list

George B. Folchi - 58 Merryall Road   New Milford, Connecticut 06776, U.S.A. Telephone: (860) 355-2807. Email: gbfolchi@yahoo.com George is well known in the Judson world and has a reputation for high quality restorations. He can also supply repair kits if you feel confident enough to carry out your own restoration. 

click here for list of services, parts and price list.

Restoration & Sales.

Glenn Ring
 Long Island, New York, USA.

rebuilds all the old cast iron Bosch Vacuum and Mechanical advance distributors to the highest standards or can sell you one outright.

For more pictures visit Glenn's website:

PayPal accepted. Will ship worldwide.

If you're looking for a quality free-breathing exhaust for your Judson then "Vintage Speed" have a tailored system to suit your Beetle, Bus or Karmann Ghia. "Vintage Speed" have built a reputation for quality and customer service over the years that is second to none. If you are located in the UK click on the banner above and ask Dan Simpson for "Judson Register" discount.

For customers outside the UK please click here.

New Judson Rotors!!
The days of noisy, rattling Judson can now be a thing of the past. Finally a new, high quality Judson Rotor is available to whoever wants one.
Ricardo Deisernia, a highly respected Vintage VW parts manufacturer from Argentina is offering the rotors at the price of $450 US.
If you don't know Ricardo please check out his feedback rating on The Samba website.

Click on picture to be taken to Ricardo's website

Click on pictures for larger view of Ricardo's Rotor operation.

Also Available - Glass Marvel Oiler Bottles!!
If you've ever tried to find a replacement Glass Marvel Bottle you'll know that it's almost impossible. Now Ricardo is supplying the Classic bulbous bottle with the top and bottom frosted bands from the '50 - early '60 version.
Price in the region of $130.

Click on picture to be taken to Ricardo's website.

Click on thumbnails below for detail pictures of mould making process.

NEW!!- Now available - Judson ID Labels
Faithfully recreating the oficial Judson ID Label found on all VW model Superchargers
Click on either picture of the labels to be transferred to Ricardo's Website.

^^^Ricardo's Okrasa Elbows $375.^^^

36hp Judson Aircleaners & Replacement Screens

Click on picture to be taken to Ricardo's website

Judson Supercharger Vanes

Click on picture to be taken to Ricardo's website

Top Quality Oil Filter, Fuel Filter, Judson Oiler Lines and Judson Double Belt Tensioner
 from Mike Bucchino
Custom Oil Lines to Your Suit your requirements ...email for pricing.


Now offering the Okrasa-style Fram oil filter basic setup with black-oxide coated case feed and return fittings, copper banjo seals, triple orange tracer steel braided German oil hoses for right firewall filter location, silver zinc plated filter inlet/ outlet compression fittings, with insured USPS shipping with tracking and signature delivery confirmation is US$185 shipped to the US.

The kits that I am producing are to fit a Fram bypass oil filter, which is mounted on the fan housing for dual carb setups, on the left side (driver's side) of the engine compartment floor on Karmann Ghias, or on the firewall to the right side of the engine (passenger side) when used with the Judson setup.  If you don't have a Fram oil filter, I have a few on hand that I can restore for your setup for about $350, in blue, orange, green or silver with repro decals.   I also have the filter elements available for $20. 

I am also offering an Okrasa-style cooling spiral setup to add to the basic Fram filter kit.  The copper oil cooler is a desirable original period correct option to add engine cooling to this filter setup.  Options for this are either copper or copper-nickel-ferrous tubing, either soldered to the hoses or produced with compression unions for ease of servicing/repairs, either clearanced for cooling air inlet thermostat ring or not. All necessary brackets, fittings, clamps and hardware are included for a proper professional installation. The least expensive option is an additional $100 shipped.  Copper (original and correct) work-hardens eventually due to vibration, plus some claim that hot oil contact is the cause of sludge formation in the oil. Cu-ni-fer (non-original and lighter copper-tone) will never tarnish or cause oil sludge problems. But, it's a bit more than plain copper tubing. I personally like the unions (hide behind the fan housing) and the cunifer tubing for actual driving use. Purists will want exact original materials and appearances. Add an additional $50 for 2 metric compression unions and cunifer tubing.

The Judson setup itself uses a Marvel oiler mounted on the firewall to the left side of the engine (driver's side).  I produce a hose and fittings to connect this oiler to the Judson, using materials that match my Fram oil line kits. This kit is $70.

Another kit that I am producing is the copper-coated steel lines and banjo fittings for the Okrasa accessory glass-bowl fuel filter.  This line kit with fittings connecting the fuel pump to the carb is available for $125. The Okrasa/ Speedwell glass-bowl filters come in two sizes and usually go for around $125.  I have both sizes of the rubber bowl gaskets available for $5.

All of these parts are, in fact made with as many German materials as are currently available, assembled using original processes to achieve correct original appearances.  I recommend all of these period correct accessories and my kits to connect them to your 36hp Judson engine, as most folks have never even seen any of these cool vintage speed parts, and you will stand out at a vintage show or if you get featured in a magazine article. 

I have only sold a few of these kits, so there are not many people in the world that currently have such rare and beautiful correct vintage speed equipment on their VW's.   You'll be in a class by yourself in the VW community.  

I accept PayPal.


Fram By-Pass Oil Filter Straps
Mike has just added the Fram filter strap to his growing list of new products. 
For sale
with the necessary hardware:
$30 for one 2" wide strap or $40 for two 1.5" wide steel straps.



Now available a quality practical addition to your double belted 36hp Judson Kit.
Mike's Double Belt Tensioner solves that "can't find the right size belt" problem and makes changing your generator belt a 10 minute job instead of the 1 hour hair tearing exercise.
Price $75.00


Matt Kenney's 
Aircooled Research is
THE source for 30/36hp, 34/40hp engine and Vintage Speed Parts.

Matt can simplify that difficult job of searching for quality NOS and refurbished parts to complete the restoration of your 
Vintage Speed VW.

Click on the logo to visit his website.

Judson Magneto Instructions & Sales Literature. Now Available!
Now available as a high quality reproduction, the full documentation pack that arrived inside every Judson Magneto box.
Click on the picture for ordering details. $15.00 plus shipping.

Buy & Sell
Products featured in the first "Buy & Sell" section are high quality products either sponsored by or produced for The VW Judson Register.

The Essential Accessory for all Judson Karmann Ghia Owners!

This is the long awaited official reproduction of the Classic Judson Air Scoop.
All items are "Swiss Made" and carry a signed Certificate of Approval from Haddon Judson jnr.


"Supercharged by Judson"
The Official Judson Research & Mfg Co. Car Badge.

Don’t mistake this badge for other poor quality imitations…these were not churned out of a back-street workshop in vast quantities for pennies and dressed up to look “period”. These are made by a high-class badge manufacturer and represent excellent value.

The Judson Register supports “The Judson Enthusiast”…if you buy from us you will also be supporting “The Judson Enthusiast”.
Click on picture for more details.

Finally Here!
Joe has Okrasa / Ghia Elbows

After waiting for over 1 year to have these made, they are finally here!!! 
I have these "in hand", today, ready to ship, no waiting!!! Okrasa / Ghia elbows are required when you are installing a 36hp/40hp Okrasa engine in your ride! These are made IDENTICAL to what was available back when they were made in the 50's. I have a limited amount and they will go fast since I have had numerous requests/demands for these. For more info, please send me an email at: mrokrasa@earthlink.net 
or give me a call at: (714) 926-7004. 
These will make an excellent Christmas stocking stuffer!
If this ad is currently "active" and you live in the USA, you can order yours by sending $453 ($16 Paypal fees + $12 "USPS" Priority shipping) payment directly to my Paypal account: mrokrasa@earthlink.net which will guarantee you a pair, shipped throughout the entire U.S.A., USPS "Priority Shipping" with insurance and "Delivery Confirmation" ensures delivery time! Those outside the U.S.A., send $480 and your address and I will get a pair out to you immediately! Cheers! Mr. Okrasa ;-)

Judson 36hp performance camshafts are here!! 
I use these camshafts all the time when I build my Judson Supercharged engines. They pull great throughout the entire RPM range. Many, MANY satisfied customers so far. 
Worldwide secured shipping! PayPal payment preferred. $199.00+shipping
Please visit my online photo albums to view Okrasa, Denzel, Judson, stock 25hp/36hp engines at: www.imageevent.com/mrokrasa
Cheers! Joe. Okrasa Motor Werks.
Email Joe to order



Marvel Oiler Service & Restoration Kit.
You will not find these kits offered anywhere else, they are exclusive to this website only. 

Click on picture for details

The Classic Marvel Oiler Water Transfer Decal
True to the original, we can now offer you this high quality water transfer.
Price: £7.50
Free worldwide shipping.


Hot Rodding the Volkswagen
 by Ocee Ritch.
Professional bound photocopy. This is an excellent review of period high performance upgrades, and gets into using Okrasa, Denzel, Zenith, Pepco, Empi, etc.  Has a chapter dedicated to Superchargers, with the emphasis on Judson. The original pamphlet is 65 pages, which have been copied onto 32 single side pages and enlarged slightly. 
This one definitely takes its place next to "Making the VW Go" and "Souping the VW." The $15 includes shipping within the lower 48, but I'll ship anywhere. You can PayPal me too if you want, at my email address.

Click on picture for details

To learn more please click below.

The Original Ampco
 Top Cylinder Lubricator


Classified Section
This section carries no guarantee or recommendation by the officers of The VW Judson Register. When you use this free service, you do so with the understanding, that no officers of The VW Judson Register can be held responsible for any problems or financial loss due to non-completion of a sale or consequences that arise from the purchase of a service or item. 

If you would like to post a free Advert on this page please use the form below

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Type your Advert Here

after sending your advert it will be added to this page
 usually within 24 hours - Thanks

Scam Warning! 
Just a warning here, that if you advertise articles "For Sale" or "Wanted" on The Internet (our own "Buy & Sell" page included) you should be wary of the unscrupulous who have "cute" scams to part you from your money and goods. You'll find some of the scams described on The Samba website here: Internet Fraud. They've been around a while and there are new angles appearing every day. If anyone wants you to do them a favour, rather than a straight "money in advance" purchase...it's a SCAM. Many scammers use Western Union so take advantage of the buyer protection offered by PayPal. If you have any doubt about a sale or purchase feel free to ask us by clicking on the Email link in the menu bar at the top of the page.
Remember! If a deal looks too good to be true...it is very probably a SCAM. Please check with us first if you have any doubts.


Email Richard California USA

6 Aug 2015
I'm looking for a 36 HP Judson kit for a 1957 VW Beetle.

Email Ivar Norway

16 July 2015
Looking for a Judson supercharger kit for my Volvo B18,B20 Engine.
For Sale

Email Billy Minnesota USA

1 July 2015
I have 2 Judson Cycle-Tron coils/ignition system.
Make me a reasonable offer, I will ship anywhere.

Email Aaron U.K.

25 June 2015
Looking for a Judson "Hold-it tool.
Please Email with your price.

Email Michael
Melbourne, Australia

12 May 2015
Looking to purchase a complete and in good condition Judson super charger for a Mercedes 190SL.
Also if anyone knows can a MG/Sprite supercharger be converted for a 190SL?
Any help will be appreciated.
For Sale

Email Dave Barnsley U.K.

2 May 2015
1956 VW Beetle Judson Supercharged, in black, show condition, loads of original paper work, fully restored to mint condition, all matching chassis and engine numbers, no rust or rot. Interior near new condition £12500 GBP
For Sale

Email Chris Stafford U.K.

29 Mar 2015
I am selling my fully refurbished 40HP Judson Supercharger kit whick includes the blower, pulleys, air filter, oiler, brackets, linkage, tensioner wheel, hose, belt, jets etc. plus two bottles of Marvellous Mystery oil and instructions on how to fit and commission it. I also have a spare oil bath air filter that will provide the correct nose piece for the air filter (faces the firewall so is not seen).

I bought this from George Folchi in the USA. It is the Mark II version for 40HP cars with the separate dynamo pedestal.

Email Bob Bellingham WA USA.

30 Jan 2015
ooking for a complete, good condition, Judson Supercharger kit for my 1970 BMW 2002 with the E10 engine. Appreciate all help/advice: Thanks

Email Jason, Arizona, USA.

18 Dec 2014
Looking for a Judson supercharger for my 36hp Volkswagen Beetle, any condition let me know thanks.

Email James Baltimore, USA

18 Dec 2014
I am looking for a complete or near complete 40hp Judson supercharger kit (Volkswagen). Air filter not needed as going in a transporter. I appreciate any help. Thanks

Email Phil Bath, U.K.

14 Nov 2014
I'm looking for a Judson Boost Gauge. Any condition many thanks.
For Sale

Email Oliver London U.K.

1 Nov 2014
Judson Supercharger, for VW Type 1 30hp / 36hp Engines.
Just missing the fuel pump spring and rear half of the generator pulley. The original Marvel bottle will either need to be repaired or replaced as a few small holes are present. Price £850

Email Chris Belgique.

31 Oct 2014
Hi, I'm looking for a Judson supercharger type 1 or all the others parts. It's the winter's job for my low light.  Thanks for all. Chris

Email Adam Oregon, USA

17 Oct 2014
Wanted, 40hp Judson kit.  Looking for a complete kit but if it's close let me know, I don't mind piecing it together a bit .  Thank you

Email David Preston, UK

21 Sept 2014
ooking for a VW 30/36hp Judson supercharger. If you can help id love to hear from you.
espectfully yours, David

Email Giovanni UK

19 Sept 2014
I would like to buy a Judson for my VW Beetle. It is a 1500cc with 1600 pistons just rebuilt it also has a H code on the block please help.
For Sale

Email Josh Snohomish WA USA

17 Sept 2014
I have a Volvo Judson supercharger for sale. Email me for pics.

Email Josep Mallorca, Spain

29 Aug 2014
Looking for a Mercedes 190sl Judson Supercharger Kit. Really interested. Thank you.
For Sale

Email Johnny Oxford UK

15 Jul 2014 "Sale Pending"
VW Type 1 36 HP Judson supercharger kit for sale. Missing only the fuel pump spring, carb jet, a support bracket, and the rear half of the generator pulley.
Open to offers! may P/X looking for vintage speed items for project.
Pictures on Pre67vw.com http://www.pre67vw.com/classifieds/detail.aspx?id=6476
For Sale

Email Rick Greensburg PA. USA

20 Apr 2014
Triumph TR3/4 Judson Supercharger kit for sale. Fully reconditioned, new vanes, bearings, seals, rebuilt carburettor with glass bowl, show quality. Contact me for more details and photos.
For Sale

Email Rick Greensburg PA. USA

20 Apr 2014
MGA Judson Supercharger kit for sale. Fully reconditioned, new vanes, bearings, seals, rebuilt carburettor with glass bowl, show quality. Contact me for more details and photos.
For Sale

Email Michael Austria.

4 Apr 2014
On www.willhaben.at I offer a Judson supercharger with Marvel Mystery oiler.
See pictures.
With greetings,

Email E.J. Be Air, MD, USA.

4 Apr 2014
Looking for Judson supercharger for Volvo B18 engine. Parts/complete kit/any information. Thank you.

Email Mark England.

03 Feb 2014
I am after a Judson supercharger for my TVR Grantura, MGA engine

Email Jean-Dominique France.

09 Jan 2014
I am looking for a VW 40hp Judson supercharger body or complete kit.
Send me proposal and pictures. Thanks.

Email Philip N.C. USA

8 Dec 2013
Looking for a longnose/snout MG-26 Judson for an MG TD.  Also interested in just a snout. Thanks

Email Leonardo Venice, Italy.

31 Oct 2013
Hello, I'm searching an old supercharger like Judson, Shorrock, Pepco or other type to fit on a Renault Dauphine engine. Condition is not important.
Thank you.  Leonardo
For Sale

Email Jason Columbus OH, USA.

31 Oct 2013
1964 Dune Buggy with Judson Supercharger.  For pictures and additional details, follow the link below:
Thanks for looking.

Email John Mainz, Germany.

13 Oct 2013
Specific Hood Hinge for Volvo B16 application in a 444 / 544 ;- heard rumors that a guy in Norway is able to reproduce these (maybe Josef Berglas or Lars Fossum knows?) also looking for specific carburettor linkage for Volvo B16 application.

Email Jean-Dominique France.

8 Oct 2013
I am looking for a VW 36hp Judson supercharger.
Send me proposal and pictures.


Email Cyrille France

3 Oct 2013
I can't recover the original tensioner belt of my JUDSON 'RD' kit. I've removed all from my dauphine for rebuilt, and I think I have lost it.
I'm searching for another.
Help me please, send me proposals.

Email Alexander Los Angeles

3 July 2013
I am looking for a Judson Supercharger for a Corvair.  I know this site mainly deals with VWs but I thought someone on here may have one for a Corvair or know someone who does.  Any information would be very helpful. Thank You.

Email Thierry France.

13 June 2013
Je recherche un compresseur Judson complet pour un moteur VW pied moulé type 1 de 1957. Merci de votre aide.

Looking for a Type 1 36hp Judson Supercharger for a 30hp VW engine. Thanks for your help.


Email Mark Denmark

5 June 2013
Hello I'm looking for a complete Judson 36 & 40hp kit for a vw kaefer.. Thanks.

Email Matthew Australia.

17 May 2013
Looking for a Type 1 Judson supercharger kit for a 36hp VW.

Email Neville India.

8 May 2013
Looking for a Judson supercharger kit for a 190 SL.
For Sale

Email Rick USA.

I have a Judson Supercharger Kit for a Sprite or Midget for Sale. The kit is complete and comes with a Judson Reproduction Gauge. Will fit all engines 948, 1098 or 1275. The unit has been rebuilt with new bearings, seals, vanes are perfect. Carburetor (Holley with the glass bowl) is also rebuilt. The kit is show quality. Please email.
For Sale

Email Adam Bay Area, CA, USA

12 Feb 2013
NOS Brand new never installed on an engine PEPCO Supercharger for Type I VW. In original Fageol Twin Coach box. It comes with complete instructions, pulleys, belt, brackets and of course blower. I can deliver to the Los Angeles area the weekend of 22-24 Feb for the OCTO bus meeting. The price is $3,900 USD.
Pictures are available.

Email Larry Waverly NB, USA

27 Jan 2013
Judson Hold-it tool for pulley removal. Let me know your price.

Email Ighor Brazil.

16 Dec 2012
Okrasa parts, Marvel Mystery parts or Judson parts. Thank you

Email Frank Canada.

28 May 2012
Looking for a Judson "SUPERCHARGED" tag that sits over the manifold (white on black to match original)

Email John B L.A. USA

11 Apr 2012
Looking for a Judson Supercharger for a Mercedes 190Sl in Los Angeles.

Email Charles Canada.

26 Mar 2012
Seeking Judson supercharger for the VOLVO B18 or B20 engine. If you have a kit with a different manifold configuration I can also manage. Thanks.

Email Peter Australia

17 Mar 2012
Looking for a Judson Supercharger for a Mercedes 190sl.

Email Warren Ohio USA.

11 Feb 2012
I am looking for a Judson for my MGA 1500. Please contact me if you own one for sale or have a good lead for me.

Email Paolo Italy

30 Jan 2012
I'm looking for a Shorrock/ Cozette Supercharger for my AMILCAR CGSS 1928 complete with all elements. Thanks in advance. Please e-mail me.

Email Richard Sweden

8 Jan 2012
I'm looking for a complete Judson kit for the VOLVO B18 / B20 engine. Thanks.

Nice to find (if you can) N.O.S. Type II kit.


Copyright John E Moxon 2000-2015