Upper Air Plug for older 24mm Marzocchi’s (pre XC500)

35,00  VAT included

This is about an aluminium upper plug for older 24mm stanchions, named assembly Art. No. 17 for all older Marzocchi forks. It includes the base air plug, the valve base, the valve and an O-Ring. This part is very rare!

This is the complete Upper Air Plug which integrates the older valve model (compare to the pictures). It includes a Schrader (automative) valve and an O-Ring (4).

This 24mm version is used in most of the older forks built before the XC400/XC500.

It will also fit in the Marzocchi Rear damper A0033


8 in stock

SKU: XC 24mm_upper_air_plug-pre XC400 Categories: , , , , , , , , , , Tags: , , , , , , , ,

Frequently Bought Together

Complete Upper Air Cap pre Models 24mm+Air Cap Puller XC & Bomber
Price for all:   64,00 

Hint: This Air Plug is not used in all of the 24mm forks and will not fit in XC500!
Marzocchi changed the form in the earlier forks several times. Please ask in detail! 

Compatibility List : 

  • StarFork
  • PF1
  • MX100
  • TT10
  • XC100
  • XC150
  • XC200
  • XC250
  • XC300
  • XC50
  • XC50H
  • XC51
  • XC400
  • and branded forks aká Kästle HDB 01, Fuchs Sport, Scott Xtrashocks, GT (MX100) etc.

Seals Assembling
When mounting the Oil Seals put crease between the inner lips of the seals before pushing the stanchions in!
Important : Use a suitable tool to press the Oil Seal verticaly in!! If you don’t do that, the metal skeleton will bend. 

Seals ‘Break-in Period’
“Some forks may require 5-10 hours of use before the fork fully breaks-in. After the bushings, seals, and other parts have matched to each other, the fork will move smoother. The tight tolerances make the fork last longer and work better.” (original text from Marzocchi Bomber Technical Information (2000) )

Knob / Dial Installation Instructions
Please glue the little screw of the dials with a little bit of middle hard screw glue. And use heat if you want to take it off than. 

Sticker Instructions
Please use the sticker only in conditions >=20°C environment to make sure the glue will work and make the tubes oil- and grease-free using isopropanol etc.

[20220114] Ebay Bewertung erhalten von Dario De Santis, Italien
Product sold : Marzocchi Bomber’s REBUILD-KIT ‘COMPLETE’ for Z1 (BAM) & Z2 (BAM) 30mm ‘classic’
“Venditore preciso e affidabile al 100% Tutto perfetto anche con piccolo regalo ?? Consigliatissimo!”

[20210911] Siro from Trieste, Italy  – Fork : Marzocchi Z3 1997
Product sold : 30mm Bomber ‘classic’ Seal kit
“Buongiorno, i pezzi per la bicicletta sono arrivati e le caramelle per me anche!!!
Buone le caramelle e anche i paraolio e para polvere, fantastici!!
Voi sapere quanto olio devo mettere dentro alle forcelle? (Marzocchi Z3 del 97)
Grazie. Un saluto da Trieste.”

[20210903] Ralf from Nürnberg, Germany – Fork : Marzocchi Z3
Product sold : Full Fork Service Z3

“Hallo Marcus, 
die Gabel ist angekommen und ich bin begeistert! Vielen Dank auch für die zusätzlichen Dichtringe und die Gummibärchen!!!
Wie kann ich die Dämpfung etwas weicher einstellen und welche Funktion haben eigentlich die Einstellschrauben jeweils auf den Standrohren?
Beste Grüße, 


Not sure about your Forks Seal size and Type???

Check my personal Marzocchi FORK <-> SEALS Database!! 

Dimensions of Marzocchi Steerer

ZollSteerer mm (top)Steerer mm (bottom)
1 "25,400 mmca. 27,20 mm
1 1/8 "28,575 mmca. 30,15 mm
1 1/4 "31,750 mmca. 33,00 mm

You will receive your goods from us fast! After receipt of payment, you can expect packaging, shipping delivery of your parcel ASAP. 
All sendings will be sent tracked! 
Shipping takes usual 1-3 days in GER using DHL, but might take longer in EU and world wide (Hermes / DHL). 
Stickers will be send by ‘Deutsche Post international registered letter’. 

Please allow 7-14 days for rebuilding depending on work load. Sometimes I need more time depending on current family needs 😏

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