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Home / Other Components / Knob, Marshall Amplifier Guitar Effect Pedal Knob Cap, Audio Tone Potentiometer Rotary Switch Knob

Attributes

Brand -
Category Electronic Components Market / Other Components
Origin -
Material Aluminum and Plastic Composite
Dimensions 16mm Diameter x 16mm Height
Shaft Type Splined Shaft (6mm)
Compatibility Marshall Amplifiers and Guitar Pedals
Color Classic Black with Silver Indicator
Weight 8 grams
Package Contents 1x Replacement Knob Cap
Finish Matte Textured Grip
Installation Push-on Fit (No Tools Required)
Warranty 30-Day Manufacturer Defect Coverage

6 reviews

A

Anonymous

Mar 12, 2026

Rating: 4/5

Good quality, slightly tight fit

The build quality is excellent for the price. It was a bit tight to push on initially, but once seated, it feels very sturdy. Looks authentic.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Easy installation

I was worried about installing it myself, but it just pushed right on. Makes my practice amp look much better than the broken plastic one I had before.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Great aesthetic upgrade

Replaced all the worn-out knobs on my effects chain with these. They look consistent and professional. The silver indicator line is easy to see on stage.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit for my vintage Marshall

I needed a replacement knob for my old amp and this fits perfectly. The splined shaft matches exactly, and the grip feels very secure during live performances.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Exactly as described

No complaints here. The dimensions are accurate, and the material feels durable. It survived a few accidental bumps on stage without falling off.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Reliable component

Ordered a batch for studio repairs. Consistent sizing across all units. The aluminum-plastic mix provides a nice tactile feel without being too heavy.

5 FAQ

Q: What is the exact diameter of the hole?

A: The inner diameter is designed to fit a standard 6mm splined shaft commonly found in Marshall amplifiers and similar audio equipment.

Q: Is the indicator line painted or molded?

A: The silver indicator line is molded into the plastic insert to ensure it does not wear off over time with frequent turning.

Q: Does this come with a set screw?

A: No, this is a push-on style knob and does not utilize a set screw. It relies on the friction fit with the splined shaft for stability.

Q: Can I use this on a Fender amplifier?

A: It depends on the shaft type. If your Fender amp uses a 6mm splined shaft, it will fit. Many Fender models use different shaft types, so please check your specific model.

Q: Will this fit a potentiometer with a smooth round shaft?

A: No, this knob is designed specifically for splined shafts. It will not stay secure on a smooth round shaft.

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