Skip to main content
Home / Car Washers / Marshall Guitar Amplifier Effects Pedal Potentiometer Rotary Switch Knob with Splined Shaft Cap

Attributes

Brand -
Category Home Appliances / Car Washers
Origin -
Brand Marshall
Material Durable Plastic with Metal Insert
Shaft Type Splined Shaft (6mm)
Compatibility Guitar Amplifiers and Effects Pedals
Color Classic Black with Gold Logo
Diameter 18mm
Height 12mm
Package Contents 1x Rotary Switch Knob
Mounting Method Push-on Fit with Set Screw
Style Vintage Marshall Iconic Design

6 reviews

A

Anonymous

Mar 24, 2026

Rating: 4/5

Good fit, slightly loose

The knob looks amazing and the branding is crisp. It fits my pedal board potentiometers well, though it was a tiny bit loose until I tightened the set screw.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Authentic Marshall feel

Exactly what I needed to restore the look of my vintage effects unit. The plastic feels sturdy and not cheap like other aftermarket knobs.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Best looking knob available

I bought three of these for my custom pedal build. They elevate the entire aesthetic of the project. Highly recommend for any Marshall enthusiast.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Fast shipping and great product

Arrived quickly and was packaged securely. The knob snaps on easily and the grip is excellent for making precise adjustments during live shows.

A

Anonymous

Mar 08, 2026

Rating: 3/5

Check your shaft size first

The knob itself is beautiful, but make sure you have a splined shaft. I tried to force it onto a smooth shaft initially and realized my mistake. Works great now on the correct pot.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect replacement for my old amp

This knob fits perfectly on my Marshall head. The splined shaft matches exactly, and the gold logo looks authentic. Great quality for the price.

5 FAQ

Q: Is the gold logo printed or molded?

A: The iconic Marshall logo is printed using high-quality durable ink that resists wear from regular use.

Q: Can I use this on a car washer machine?

A: No, this product is specifically designed for musical instrument amplifiers and effects pedals. It is not suitable for car washers or industrial machinery.

Q: Will this fit a standard Bourns potentiometer?

A: Yes, this knob is designed to fit standard 6mm splined shafts commonly found on Bourns and similar quality potentiometers used in guitar gear.

Q: Does this come with a set screw?

A: Yes, the knob includes a small metal set screw on the side to secure it firmly to the shaft and prevent rotation.

Q: What is the return policy if it doesn't fit my pot?

A: We offer a 30-day return policy for unused items in original packaging. Please ensure you verify your shaft type before installation.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Variable Frequency Three-Phase Asynchronous Motor IFG-50-3-4

Variable Frequency Three-Phase Asynchronous Motor IFG-50-3-4

$3,299.00

Manual French Fry Cutter, Multi-Function Slicer for Radish, Cucumber, Potato, and Onion, Commercial Vegetable Chopper

Manual French Fry Cutter, Multi-Function Slicer for Radish, Cucumber, Potato, and Onion, Commercial Vegetable Chopper

$660.00

Multi-Function Water Cooler Bucket Storage Rack for Office, Large Capacity Floor-Standing Organizer

Multi-Function Water Cooler Bucket Storage Rack for Office, Large Capacity Floor-Standing Organizer

$119.64

401 Silicone-Specific Adhesive for Bonding Metal, Plastic, TPU, TPR, ABS; Silicone-to-Silicone Bonding Without Surface Treatment

401 Silicone-Specific Adhesive for Bonding Metal, Plastic, TPU, TPR, ABS; Silicone-to-Silicone Bonding Without Surface Treatment

$21.96

G80 Chain Slings for Lifting - Heavy Duty Iron Chains with Shackles and Hooks, 4-Leg Configuration, Available in 1m/2m Lengths and 6t/8t/10t Capacities

G80 Chain Slings for Lifting - Heavy Duty Iron Chains with Shackles and Hooks, 4-Leg Configuration, Available in 1m/2m Lengths and 6t/8t/10t Capacities

$312.70

Aromatherapy Essential Oil Humidifier for Home Bedroom - Long-Lasting Fragrance Diffuser, Portable Plant Incense for Car

Aromatherapy Essential Oil Humidifier for Home Bedroom - Long-Lasting Fragrance Diffuser, Portable Plant Incense for Car

$8.88

Professional Sketching Blending Stumps and Scrapers - Detail Shading Tools for Art Students

Professional Sketching Blending Stumps and Scrapers - Detail Shading Tools for Art Students

$3.28

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402 - For Freshwater Aquaculture Ponds (Fish & Shrimp)

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402 - For Freshwater Aquaculture Ponds (Fish & Shrimp)

$802.30

Smart Food Waste Disposer Smart Food Waste Processing Device Smart Kitchen Waste Treatment Unit

Smart Food Waste Disposer Smart Food Waste Processing Device Smart Kitchen Waste Treatment Unit

$12,899.00

Westwood Portable Invisible Braces Case - Orthodontic Retainer and Denture Cleaning Box

Westwood Portable Invisible Braces Case - Orthodontic Retainer and Denture Cleaning Box

$16.80

Lifting Chain with Adjuster Forklift Crane Chain Adjustable Length Manganese Steel Chain Bundling Lifting Chain with Hooks

Lifting Chain with Adjuster Forklift Crane Chain Adjustable Length Manganese Steel Chain Bundling Lifting Chain with Hooks

$54.00

Smokeless and Odorless Tea Light Candles - 2-Hour or 4-Hour Burn Time, 100 Pack for Wax Seals and Aromatherapy

Smokeless and Odorless Tea Light Candles - 2-Hour or 4-Hour Burn Time, 100 Pack for Wax Seals and Aromatherapy

$4.80

Commercial Roast Duck and BBQ Meat Warmer Display Case - Constant Temperature Heating Cabinet for Crispy Pork Belly and Hanging Ducks

Commercial Roast Duck and BBQ Meat Warmer Display Case - Constant Temperature Heating Cabinet for Crispy Pork Belly and Hanging Ducks

$755.00

Custom Company Signage, Temporary Bank Account Opening Signs, Door Plates, Acrylic Advertising Displays, and Nameplates

Custom Company Signage, Temporary Bank Account Opening Signs, Door Plates, Acrylic Advertising Displays, and Nameplates

$17.00

Imported USA PELICAN 1510 Safety Case, 20-Inch Rolling Luggage for DSLR Cameras and Moisture Protection

Imported USA PELICAN 1510 Safety Case, 20-Inch Rolling Luggage for DSLR Cameras and Moisture Protection

$39.20

Fully Automatic 801 Vegetable Cutter, Large Dual-Head Slicing/Dicing Machine for Cafeterias

Fully Automatic 801 Vegetable Cutter, Large Dual-Head Slicing/Dicing Machine for Cafeterias

$7,972.00

Cross-Border Beach Bag - Outdoor Waterproof Dry Bag with Mesh for Rafting, Swimming, and Trekking

Cross-Border Beach Bag - Outdoor Waterproof Dry Bag with Mesh for Rafting, Swimming, and Trekking

$49.60

Commercial Square Constant-Temperature Heating Cabinet Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ

Commercial Square Constant-Temperature Heating Cabinet Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ

$658.00

Large Capacity Thickened Waterproof Handbag - Blow Crossbody Shoulder Bag for Travel and Daily Motorcycle Use

Large Capacity Thickened Waterproof Handbag - Blow Crossbody Shoulder Bag for Travel and Daily Motorcycle Use

$127.00

Art Student Absorbent Towel for Watercolor, Oil, Acrylic Paints, Palette Paper, Traditional Chinese Painting - Double-Sided Cloth for Kids and Students

Art Student Absorbent Towel for Watercolor, Oil, Acrylic Paints, Palette Paper, Traditional Chinese Painting - Double-Sided Cloth for Kids and Students

$2.72

[Damai Micro-Needle Hair Transplant Patent] Hairline, Temple, and Crown Restoration for Thinning Hair

[Damai Micro-Needle Hair Transplant Patent] Hairline, Temple, and Crown Restoration for Thinning Hair

$7,999.00

Feileniao Traditional Chinese Painting Set with Line Art for Coloring on the Go

Feileniao Traditional Chinese Painting Set with Line Art for Coloring on the Go

$72.00

Export to USA Small Flower Pots More Beautiful Than Flowers Succulent Pots/Ceramic Pots/Letter Series

Export to USA Small Flower Pots More Beautiful Than Flowers Succulent Pots/Ceramic Pots/Letter Series

$41.00

[Group 13 Full Payment Pre-order] Thin Mint Fufu Hawthorn Berry Mint Chocolate Lolita Dog-Short Fishbone Puffy Skirt

[Group 13 Full Payment Pre-order] Thin Mint Fufu Hawthorn Berry Mint Chocolate Lolita Dog-Short Fishbone Puffy Skirt

$25.00

Wenxin Tang Cao Quan Stele Han Clerical Script Cards - Beginner Calligraphy Practice for Adults, Brush Writing Copybooks

Wenxin Tang Cao Quan Stele Han Clerical Script Cards - Beginner Calligraphy Practice for Adults, Brush Writing Copybooks

$136.00

'Eki (Station)' by Mariya Takeuchi - Mr. Chui Saxophone Trio Precise Transcription Service

'Eki (Station)' by Mariya Takeuchi - Mr. Chui Saxophone Trio Precise Transcription Service

$37.00

Pad Printing Machine Accessories: 4*4 Aluminum Ink Cup, Ink Tray, Ink Container, and Ink Trough

Pad Printing Machine Accessories: 4*4 Aluminum Ink Cup, Ink Tray, Ink Container, and Ink Trough

$40.00

KUDIS Commercial & Industrial Vacuum Cleaner - High-Power Wet/Dry Unit for Workshop Dust, Factory Floors, Warehouses, and Concrete Surfaces

KUDIS Commercial & Industrial Vacuum Cleaner - High-Power Wet/Dry Unit for Workshop Dust, Factory Floors, Warehouses, and Concrete Surfaces

$5,200.00

Rubber Speed Bump End Cap Heavy-Duty 1 Pack

Rubber Speed Bump End Cap Heavy-Duty 1 Pack

$72.46

Front Wiper Arm Assembly for Citroën C-Elysée, Xsara Picasso, Peugeot 307/301

Front Wiper Arm Assembly for Citroën C-Elysée, Xsara Picasso, Peugeot 307/301

$35.00