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  • Honda CB1100 / CB1000 / CB900 / CB750 NGK DR8EIX Iridium Spark Plug
Honda CB1100 CB1000 CB900 CB750 NGK DR8EIX iridium spark plug
Honda CB1100 CB1000 CB900 CB750 NGK DR8EIX iridium spark plug
Honda CB1100 CB1000 CB900 CB750 NGK DR8EIX iridium spark plug
Honda CB1100 CB1000 CB900 CB750 NGK DR8EIX iridium spark plug
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Honda CB1100 CB1000 CB900 CB750 NGK DR8EIX iridium spark plug

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Load image into Gallery viewer, Honda CB1100 CB1000 CB900 CB750 NGK DR8EIX iridium spark plug

Honda CB1100 / CB1000 / CB900 / CB750 NGK DR8EIX Iridium Spark Plug

50-8605
$24.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,353 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
Honda CB1100 / CB1000 / CB900 / CB750 NGK DR8EIX Iridium Spark Plug
$24.95 USD
Description

Upgrade to iridium with these NGK DR8EIX Iridium Spark Plugs.

The cheapest horsepower you can buy for your CB. Adds a solid 1-2 HP to your bike. 4 required per CB750.

Key Features
• NGK DR8EIX iridium spark plug
• Adds approximately 1-2 HP

Fitment / Compatibility

• Honda CB750K (1969‑78)
• CB750F (1975‑78) Supersport
• CB750A (1976‑78) HondamaticCB750K (1969) Standard
CB750K (1970)
CB750K (1971)
CB750K (1972)
CB750K (1973)
CB750K (1974)
CB750K (1975)
CB750F (1975) Supersport
CB750K (1976)
CB750F (1976)
CB750A (1976) Hondamatic
CB750K (1977)
CB750F (1977)
CB750A (1977)
CB750K (1978)
CB750F (1978)
CB750A (1978)
CB750K (1979) Standard
CB750F (1979) Supersport
CB750L (1979) Limited
CB750K (1980)
CB750F (1980)
CB750C (1980) Custom
CB750K (1981)
CB750F (1981)
CB750C (1981)
CB750K (1982)
CB750F (1982)
CB750C (1982)
CB900C (1982)
CB900F (1982)
CB1000C (1983) Custom
CB1100F (1983) Supersport

• Honda CB900F (1982) Supersport
• CB900C (1982) Custom
• CB1000C (1983) Custom
• CB1100F (1983) Supersport

Part Number: 50-8605

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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K Standard 1969
Honda CB750K 1970
Honda CB750K 1971
Honda CB750K 1972
Honda CB750K 1973
Honda CB750K 1974
Honda CB750K 1975
Honda CB750F Supersport 1975
Honda CB750K 1976
Honda CB750F 1976
Honda CB750A Hondamatic 1976
Honda CB750K 1977
Honda CB750F 1977
Honda CB750A 1977
Honda CB750K 1978
Honda CB750F 1978
Honda CB750A 1978
Honda CB750K Standard 1979
Honda CB750F Supersport 1979
Honda CB750L Limited 1979
Honda CB750K 1980
Honda CB750F 1980
Honda CB750C Custom 1980
Honda CB750K 1981
Honda CB750F 1981
Honda CB750C 1981
Honda CB750K 1982
Honda CB750F 1982
Honda CB750C 1982
Honda CB900C 1982
Honda CB900F 1982
Honda CB1000C Custom 1983
Honda CB1100F Supersport 1983

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

See full shipping details

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

How many NGK DR8EIX spark plugs are included and required?

One NGK DR8EIX spark plug is included. Every Honda model named in the fitment has a four-cylinder engine, so four plugs are required for a complete replacement.

What type of spark plug is NGK DR8EIX?

DR8EIX is an NGK resistor-type Iridium IX spark plug. Match the complete code because the resistor designation, heat range and suffix are all part of the specification.

Can a similar D-series plug or different heat range be substituted?

Do not substitute by thread appearance alone. Use DR8EIX only where the Honda service information and current NGK application data call for that exact plug, gap it to the specified value and inspect all four caps and leads during replacement.

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