NGK SD05FGA 8683 Resistor Spark Plug Cap
NGK SD05FGA 8683 Resistor Spark Plug Cap
The NGK range of resistor covers are designed to give perfect noise suppression across all frequencies whilst engine performance is not adversely affected whatsoever. Some caps are none resistor such as the LZFH & LBER. Ideal for magnetos ignition etc. Featuring a resistor element pressed in between the plug terminal and the high tension wire connection, the construction is extremely durable, the resistor element is long enough to prevent interior flashover, and steady resistance is maintained. Superlative ceramic materials are incorporated that resist deterioration and have small resistance variation under over-load, whilst the plug connector is made of sturdy phenolic resin, practically oblivious to tremendous heat and high tension, and very rugged rubber material. The heat press insertion makes the construction all the more tough and vibration-resistance. Special rubber liners on both ends prevent moisture from causing electrical leakage. All motorcycle manufacturers now comply with current legislation which demands a standard of noise suppression on every vehicle. This is achieved usually by fitting NGK resistor covers though in many cases a combination of NGK resistor covers and NGK resistor spark plugs (R type) is necessary to satisfy the ministry tests. It is emphasized that despite the use of both resistor covers and spark plugs in such engines, due to the unique and superior construction of NGK products there is no loss of performance or shortening of service life. LB05EMH and SD05FM being of tough EDPM rubber construction are intended for competition/trial applications
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Model Compatibility
Model Compatibility
- Austin-Healey 3000 1965-1972
- Jaguar E-Type 1961-1975
- Triumph Spitfire MkIII 1967-1970
- MG MGB 1971-1974
- Morris Mini Cooper S 1964-1971
- Ford Cortina MkII 1966-1970
- Aston Martin DB5 1964-1965
- Alfa Romeo Giulia Sprint GT 1963-1966
- Fiat 500 1964-1975
- Volkswagen Beetle 1968-1970
- Porsche 911 1964-1973
- BMW 2002 1968-1976
- Mercedes-Benz 280SL 1968-1971
- Lotus Elan 1962-1970
Part Number
Part Number
- Product name: NGK SD05FGA 8683 Resistor Spark Plug Cap
- NGK part number: SD05FGA
- Material: Ceramic, phenolic resin, rubber
- Suppression level: Perfect noise suppression across all frequencies
- Engine performance: Not adversely affected
- Resistor type: Resistor element pressed in between plug terminal and high tension wire connection
- Durability: Extremely durable construction
- Flashover prevention: Resistor element is long enough to prevent interior flashover
- Resistance maintenance: Steady resistance is maintained
- Ceramic materials: Superlative ceramic materials resist deterioration and have small resistance variation under over-load
- Plug connector: Made of sturdy phenolic resin, heat and high tension resistant
- Rubber material: Very rugged rubber material
- Heat press insertion: Construction is tough and vibration-resistant
- Moisture protection: Special rubber liners on both ends prevent moisture from causing electrical leakage
- Noise suppression compliance: All motorcycle manufacturers now comply with current legislation for noise suppression
- Standard: Standard of noise suppression required on every vehicle
- NGK resistor covers: Usually fitted to achieve noise suppression compliance
- Combination with NGK R-type resistor spark plugs: Necessary in some cases to satisfy ministry tests
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Shipping Information
Shipping Information
Standard shipping with tracking via Royal Mail or Evri for heavier parts:
- £4.99 per order for standard 2-day delivery
- £5.99 per order for Next Day delivery
Most orders are shipped the same business day if ordered before 2pm. We ship Monday through Friday.
If we unexpectedly run out of stock we may have to order your part which can take up to 1 week. We will be in touch in the rare circumstance that there is a delay to your shipment.
Returns Policy
Returns Policy
We want you to be completely happy with your purchase but please do not hesitate to contact us immediately if you have a problem with your order. Please ensure that you consider all the points described on our profile page accessible by clicking our name above the product title.
It is especially important that you take due care to ensure that the part you selected is compatible with your car. If in doubt, we'd prefer that you get in touch via our profile page so we can help you.