Genuine GUNSON G4074 Colortune Single Plug Kit

Be the first to review this product

Part No: G4074

Availability: In stock

Excl. Tax: £23.77 Incl. Tax: £28.53

Looking for greater quantities?
Trade prices available. E-mail us on our contact form, conditions apply.

VAT registered within the EU?
Make an account and email us on the contact form submitting your VAT number. (Not applicable in UK)

Products in stock for same day dispatch. Cut off 1pm GMT.
(Supply permitting)

Call us for technical advice
+44 (0) 1477 532 317

Pay securely by Sagepay or Paypal

Join Us on Facebook!



  • The Tune-up plug for Petrol/LPG 2 & 4 stroke engines with single, twin or multiple carburettors or fuel injection systems. The original and best tool for seeing what's happening inside the combustion chamber of the petrol engine. It allows you to see the combustion and to adjust the mixture by colour. Fits most petrol engines in standard form with additional adaptors available for vehicles with alternative sized spark plugs 18mm- G4055E 14mm - Long Reach G4055D 14mm - Tapered Seat G4055C 12mm - G4055B 10mm - G4055A The complete Colortune kit is also available with the following adaptors G4171 with 12mm Colortune Plug G4170 with 10mm Colortune Plug
  • Kit includes: 14mm Short reach plug | Hexagonal adaptor
  • Colortune will fit most vehicles
  • Kit complete with instructions
  • Extra adaptor sizes available separately

Additional Info

Additional Info

Part Number G4074
Barcode 5018341740740
Manufacturer Gunson Tools
Pack Size 1 Single Unit
Bulb Voltage Gunson


Write Your Own Review

You're reviewing: Genuine GUNSON G4074 Colortune Single Plug Kit

Shipping Calculator

Click here for Payment, Delivery and Returns info

Enter your destination to get a shipping estimate

Frequently bought together

Customers Who Bought This Item Also Bought