Replacemant Valve Kit For Marshall JCM900 4501

Marshall JCM900 4501

Valves for Marshall JCM900 4501 amplifier.

The Marshall JCM900 4501 amplifier uses:

  • 2 x ECC83 (also called 12AX7) preamp valves.
  • 1 x Balanced ECC83 for the phase inverter in position V3.
  • 2 x 5881 matched power valves/power tubes.

We recommend JJ valves for the Marshall JCM900 4501 amplifier. This is because they guarantee awesome tone and power at a very competitive price.

Don’t forget, JJ is one of only five manufacturers of valves in the world so don’t pay more for rebranded versions of the exact same valves.

Order your valves for Marshall JCM900 4501 below and hear the difference they make.

So bring back the power, sparkle and tone to your guitar amplifier. Treat yourself to a brand new set of valves today. 

  • Best valves for Marshall JCM900 4501 amplifiers.
  • Each valve is carefully chosen, fully tested and digitally matched. So order with total confidence.
  • Fast delivery with full tracking and insurance.
  • Global reach – we ship all over the world.

Replace the Valves on your Marshall JCM900 4501 amplifier.

If you have any questions please drop us an email. We have over 30 years of experience so one of the team will be happy to get straight back to you.

We answer the same questions every week, so do check out our FAQ section before getting in touch. We also give you lots of hints and tips on how to upgrade your valves as well as busting a few myths that surround the industry.

About the Marshall JCM900 4501 amp:

The JCM900 4501 is the single speaker combo version of the JCM900 4500 head.

Marshall has specialised in the production of valve amplification since 1962. The unique tone and playing response of the valves has formed the cornerstone of the Marshall “Sound of Rock”. The JCM 900 models split into two distinct product ranges, the Master Volume SL-X and the Dual Reverb.

So although they share a common ancestry and have similar rear panel functions their applications are quite different.


  • Effects Loop Level Control.
  • FX Send Socket.
  • Effects Return Socket.
  • Compensated Line-Out Socket.
  • Direct Line-Out Socket.
  • Impedance Selector Switch.
  • Loudspeaker Output Jack Sockets
  • Parallel wired jacks for linking speaker cabinets.
  • Output Mode Switch
  • Valve Failure L.E.D.

If you’re looking for great sounding valves for Marshall JCM900 4501 amplifier you’ve come to the right place.

Simply choose the complete replacement valve kit or the seperate valves for your amplifier below: