NGK DPR8Z Spark Plug - 4730

The NGK Yellow Box Spark Plug, part number DPR8Z, is a high-quality ignition component designed to...

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Product Information

Full details

The NGK DPR8Z Spark Plug (4730) is designed for petrol engines, providing reliable ignition to generate power. Its durable nickel center electrode and single earthed electrode ensure consistent performance. A key benefit is its interference suppression capability, reducing electrical noise. However, it's crucial to confirm compatibility with your specific engine model before purchase, as this is a single-unit listing.

All features

Model Part Number	DPR8Z
Brand	NGK

Extended Product Information

FAQs

What is the part number for this NGK spark plug?

The part number for this NGK spark plug is DPR8Z, and its associated number is 4730.

What material is the center electrode made of?

The center electrode is made of nickel.

Does this spark plug have interference suppression?

Yes, this spark plug features 5 kOhm interference suppression.

What are the thread dimensions?

The spark plug has a thread length of 19mm and an outer thread of 12mm.

What is the hex nut size?

The hex nut size required for installation is 18mm.

Is this spark plug suitable for all petrol engines?

No, it is essential to confirm compatibility with your specific engine model as spark plug requirements vary.

Does this listing include multiple spark plugs?

No, this listing is for a single NGK DPR8Z spark plug.

Troubleshooting

Engine misfires or runs rough

Check that the spark plug is correctly installed and tightened. Ensure the spark plug wire or coil is securely connected. Verify compatibility with your engine.

Difficulty starting the engine

Confirm the spark plug is receiving adequate spark. Check for proper fuel delivery and air intake. Ensure the spark plug is the correct type for your engine.

Reduced engine power or poor acceleration

Inspect the spark plug for fouling, wear, or damage. Replace if necessary. Ensure the spark plug gap is correct if adjustable (though this model is pre-gapped).

Electrical interference affecting radio or electronics

The DPR8Z has 5 kOhm interference suppression. If issues persist, ensure all grounding is secure and check other potential sources of interference.

Pros and Cons

Pros

Reliable ignition for optimal engine power.
Durable construction with nickel and single earthed electrodes.
Helps reduce electrical interference for smoother running.
Designed for efficient fuel combustion with extended spark projection.
NGK is a reputable brand known for quality ignition components.

Cons

Single-unit listing means multiple must be purchased for multi-cylinder engines.
Requires careful compatibility check with specific engine models.
May not be suitable for all engine types or performance modifications.
Specific heat rating needs to be confirmed for optimal engine application.

Setup, Compatibility & Care

Compatibility:

Before purchasing, it is crucial to verify that the NGK DPR8Z spark plug (MPN: DPR8Z) is the correct specification for your vehicle's engine. Consult your vehicle's owner's manual or a qualified mechanic to confirm the required thread size (12mm outer thread, 19mm length), hex nut size (18mm), and heat range.

Installation:

Ensure the engine is cool before starting.
Carefully remove the old spark plug using the appropriate size spark plug socket.
Inspect the new spark plug for any damage.
Thread the new NGK DPR8Z spark plug into the cylinder head by hand to avoid cross-threading.
Once hand-tight, use a torque wrench to tighten the spark plug to the manufacturer's specified torque value. Over-tightening can damage the cylinder head.
Reconnect the spark plug wire or ignition coil.

Care:

Spark plugs are generally considered maintenance items and are not typically 'cared' for in terms of cleaning. However, if you remove them for inspection, ensure they are kept clean and free from debris. The gasket seat should be clean to ensure a proper seal.