Spark Plug Specifications
4
Plugs Required
0.9 mm
Electrode Gap
60K mi
Change Interval
| Parameter | Specification |
|---|---|
| Plug Number | NGK SILZKBR8D8S |
| Type | Double Iridium |
| Electrode Gap | 0.9 mm |
| Quantity Required | 4 |
| Change Interval | Every 60,000 miles |
Diesel note: Diesel engines use glow plugs instead of spark plugs. If your MINI Cooper is a diesel variant, the spark plug data above applies only to petrol models. Consult your handbook for the correct glow plug specification.
Recommended Spark Plugs for MINI Cooper
NGK SILZKBR8D8S (Set of 4)
Double Iridium | OE spec | Pre-gapped to 0.9 mm
From ~£24
Denso Double Iridium TT
Twin-tip design | Improved ignitability | Set of 4
From ~£22
Bosch Double Iridium Spark Plug Set
OE supplier | German quality | Set of 4
From ~£20
Frequently Asked Questions
What spark plugs does a MINI Cooper use?
The MINI Cooper (F66) uses NGK SILZKBR8D8S double iridium spark plugs. The gap should be set to 0.9 mm. You need 4 plugs for a full set.
How often should I change spark plugs on a MINI Cooper?
Every 60,000 miles for double iridium plugs. Iridium and double iridium plugs last longer than standard copper or nickel plugs.
Can I use a different brand of spark plug in my MINI Cooper?
Yes, as long as it matches the exact specification — same heat range, thread size, reach, and gap (0.9 mm). NGK SILZKBR8D8S from any major manufacturer (NGK, Denso, Bosch, Champion) will work.
What are the signs of worn spark plugs?
Rough idle, poor fuel economy, hesitation during acceleration, engine misfires, and difficulty starting. If your engine management light comes on with a misfire code, spark plugs are a common culprit.