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I'm restoring my old Losi JRX-Pro buggy and have found some new old stock of LOSA5015 double o-ring shock cartridges to replace the original 33 year old parts. Unfortunately the original large o-rings that go between the cartridge and the shock body have detriorated and become brittle. They fell aprt when I removed the old cartridges. The new cartridges do not come with those o-rings and I have had no luck finding a part number or compatible substitute. What is everyone using these days for JRX-Pro restorations? Does anyone know the size or specification for those o-rings?

Thanks

Deja vu...

Losi A-5011

Or... 12mm x 1mm o-rings.

Thanks much for the quick reply. That solved my only remaining problem getting the JRX-Pro back in good order.

I have never run those seals on any of my JRX series cars and none of them leak. The shock cartridge's plastic seems to seal fine against the shock bodies.