NGK DR5HS Spark Plug - 4623

NGK DR5HS (4623) Standard Spark Plug / Sparkplug with a Projected Centre Electrode. Designed for o...

Best current price£4.11from The Green Spark Plug Company

All Offers

12 offers from £4.11 - £15.29

View price history by clicking the chart icon.

The Green Spark Plug CompanyNgk Dr5hs 4623 Spark Plug Copper Core New Ngk-Dr5hs
£4.16 delivery
£4.11
Visit shop
eBayNGK 4623 Spark Plug
£5.90 delivery
£5.57
Visit shop
Blueperry agriculture (UK)Ngk Spark Plug Dr5hs
Free delivery in 1–3 days
£7.07
Visit shop

Product Information

Full details

The NGK DR5HS (4623) Standard Spark Plug is designed for optimal performance in petrol engines, providing reliable ignition for power generation. It is ideal for vehicle owners and mechanics seeking a durable, standard replacement spark plug. A potential caveat is its standard design, which may not offer the advanced performance of premium iridium or platinum alternatives.

All features

Model Part Number4623
BrandNGK

Extended Product Information

FAQs

What is the thread size of the NGK DR5HS (4623) spark plug?

The NGK DR5HS (4623) spark plug has a thread size of 12mm.

What is the hex nut size for this spark plug?

The hex nut size for the NGK DR5HS (4623) is 18mm.

Is this spark plug suitable for all petrol engines?

This spark plug is designed for petrol engines that specifically require its dimensions and performance characteristics. Always verify compatibility with your engine's specifications.

How often should I replace my spark plugs?

The replacement interval varies by engine manufacturer and driving conditions. Consult your vehicle's owner manual for the recommended service interval for spark plugs.

Can I adjust the gap on this spark plug?

While the gap is preset, it is generally not recommended for users to adjust the gap on standard spark plugs like the DR5HS, as this can alter performance and potentially damage the plug. Ensure you are using the correct plug for your application.

What is the projected centre electrode?

A projected centre electrode extends further into the combustion chamber, promoting better spark plug cooling and improved ignitability by positioning the spark closer to the air-fuel mixture.

Troubleshooting

Engine misfire or rough idle

Ensure the spark plug is correctly installed and torqued. Check ignition wires for damage and proper connection. Verify the spark plug is the correct type for the engine.

Difficulty starting the engine

Check if the spark plug is receiving adequate spark. Inspect for fouling or damage on the spark plug tip. Ensure fuel and air intake systems are functioning correctly.

Reduced fuel efficiency

A worn or fouled spark plug can impact fuel economy. Replace with a new, correctly gapped NGK DR5HS (4623) if the existing one shows signs of wear or contamination.

Pros and Cons

Pros

  • Reliable ignition for standard petrol engines.
  • Durable nickel construction for longevity.
  • Easy installation with standard thread and hex nut sizes.
  • Cost-effective replacement option.

Cons

  • May not provide the advanced performance of premium spark plugs (e.g., iridium, platinum).
  • Single ground electrode offers standard longevity compared to multi-ground plugs.
  • Requires proper gapping for optimal performance, which is not user-adjustable.
  • Limited to specific engine applications where this standard type is recommended.

Setup, Compatibility & Care

Setup:

  1. Ensure the engine is cool before attempting to replace spark plugs.
  2. Using the correct size wrench (18mm hex), carefully remove the old spark plug.
  3. Verify the NGK DR5HS (4623) is the correct replacement for your engine by consulting your vehicle's owner manual or a reliable parts catalog.
  4. Thread the new spark plug in by hand to avoid cross-threading.
  5. Tighten the spark plug using a wrench to the manufacturer's recommended torque specification. Overtightening can damage the cylinder head.

Compatibility:

This spark plug is designed for petrol engines requiring a 12mm thread size and an 18mm hex nut size. Always confirm compatibility with your specific engine model before installation.

Care:

Spark plugs are wear items and are not typically user-serviceable for maintenance beyond replacement. Keep the area around the spark plug ports clean to prevent debris from entering the combustion chamber during installation. Inspect the spark plug tip for fouling or damage during routine maintenance checks.

Price History

DatePrice
Visit shop