Aftermarket value priced 4-pack of Iridium spark plugs from BOSCH. Sold in packages of 4 spark plugs.

Fits the following Cooper non-S models built before 09/2009 with the N12 engine:

2007 up to 09/2009 R56 MINI Cooper (non-S) Hardtop
2008 up to 09/2009 R55 MINI Cooper (non-S) Clubman
up to 09/2009 R57 MINI Cooper (non-S) Convertible 

NOTE: For modified MINIs with ECU tune or larger turbos, see Mini Cooper Colder Spark Plug for Modified Minis.

Factory recommends new plugs every 100,000 miles for the 2007-2010 Mini Cooper non-S models with the N12 engine - we think it wouldn't hurt to replace sooner.

Bosch Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The ultra-fine wire iridium center electrode pin delivers best performance. Unlock the performance in your engine with Bosch Iridium Spark Plugs.

Key Features

• Bosch original equipment design, materials and processes represent the best of OE technology 
• Iridium center electrode tip 
• Pre-gapped - no need to gap, providing faster installation. 

Specifications:

• Center Electrode Tip Material: Iridium
• Gap Size: .95
• Ground Configuration: Standard
• Ground Electrode Core Material: Copper
• Ground Electrode Quantity: 1
• Ground Electrode Tip Design: Standard
• Hex Size: 14
• Insulator Material: Ceramic
• Insulator Type: Projected 
• Manufacturer Heat Range: 8
• Outdoor Power Equipment Application: No
• Reach: 26.5
• Seat Type: Flat

Notes:

Tightening Torque: 23 +3 Nm or 17+2 ft-lb

Traditionally, Spark Plugs have been designed with a hexagonal socket style. The Bi-Hex design provides increased strength compared to a traditional hexagonal design, allowing for a more compact spark plug without compromising strength requirements.

See the Professional Grade Bi-Hex Spart Plug Socket here.

Fits the following Cooper S models with the N18 engine:

2011-2013 R56 MINI Cooper S Hatchback
2011-2014 R55 MINI Cooper S Clubman
2011-2015 R57 MINI Cooper S Convertible
2012-2015 R58 MINI Cooper S Coupe
2012-2015 R59 MINI Cooper S Roadster
2011-2016 R60 MINI Cooper S Countryman
2013-2016 R61 MINI Cooper S Paceman

Also compatible with the JCW models with the N18 engine (see Note 2 below).

NOTE: For modified MINIs with ECU tune or larger turbos, see Mini Cooper Colder Spark Plug for Modified Minis.

Factory recommends new plugs:

• every 60,000 miles on Cooper S models
• every 18,641 miles on JCW models (see Note 2 below)

In case of multivalve technology, lean burn or direct injection, the flow conditions in the combustion chamber require reliable mixture ignition and optimal cold starting behaviour. BERU spark plugs were specially designed for these special requirements. Where the burn-off resistance and ignition reliability need to be very high, automobile manufacturers such as BMW, Peugeot and Porsche use BERU spark plugs with platinum electrodes.

Technical Features

* Centre and, if required, ground electrodes made of special materials, for example silver for high thermal conductivity or platinum for extremely high resistance to erosion
* Optimal, environmentally friendly combustion: saves fuel and protects the catalytic converter
* Long life, high dependability
* Good cold starting properties
* Excellent mixture access
* First equipment quality
* Pre-gapped

Specifications:

* Thread Size: N 12 x 1.25
* Spanner Size: 14 / bi-hex
* Thread Length: 26.5mm

Note: Recommendation - When changing the spark plugs on vehicles with connector ignition coils, please replace the connector and use spark plug connector grease to fit the connector.

Notes:

• Tightening Torque: 23 +3 Nm or 17+2 ft-lb
• When changing the spark plugs on vehicles with connector ignition coils, use spark plug connector grease to fit the connector.

As modern engines become more efficient and compact, engine components such as Spark Plugs are required to become smaller too. NGK have recognised this and assisted by developing Bi-Hex Spark Plugs.

Traditionally, Spark Plugs have been designed with a hexagonal socket style. The Bi-Hex design provides increased strength compared to a traditional hexagonal design, allowing for a more compact spark plug without compromising strength requirements.

See the Professional Grade Bi-Hex Spart Plug Socket here.

Note 2 (JCW service bulletin):

Maintenance work MINI COOPER S JCW (N18) - reduction spark plug interval

Situation:

Due to current quality testing, the spark plug interval in the new John Cooper Works models with engines N18 have been reduced to the previous interval of 30,000 km (with every engine oil service).

Vehicles concerned:

R55 COOPER S JCW
R56 COOPER S JCW
R56 COOPER S JCW GP2
R57 COOPER S JCW
R58 COOPER S JCW
R59 COOPER S JCW
R60 COOPER SX JCW
R61 COOPER SX JCW

Procedure:

Intervals as stated below refer only to the ECE basic interval.
Country specific deviations may apply. For countries with lower-quality fuel grades, comply with the country-specific intervals.

Change engine oil approximately every 30,000 km/24 months.

• Microfilter: Renew at every engine oil change (approx. 30,000 km).
• Air filter: Renew at every 2nd engine oil change (approx. 60,000 km).
• Spark plugs: Renew at every engine oil change (approx. 30,000 km or 18,641 mi).

Carry out vehicle check every 60,000 km (48 months).

Fits the following Cooper non-S models with the N16 engine:

2011-2013 R56 MINI Cooper Hatchback
2011-2014 R55 MINI Cooper Clubman
2011-2015 R57 MINI Cooper Convertible
2012-2015 R58 MINI Cooper Coupe
2012-2015 R59 MINI Cooper Roadster
2011-2016 R60 MINI Cooper Countryman
2013-2016 R61 MINI Cooper Paceman 

NOTE: For modified MINIs with ECU tune or larger turbos, see Mini Cooper Colder Spark Plug for Modified Minis.

Factory recommends new plugs:

• every 60,000 miles on Cooper models

In case of multivalve technology, lean burn or direct injection, the flow conditions in the combustion chamber require reliable mixture ignition and optimal cold starting behaviour. BERU spark plugs were specially designed for these special requirements. Where the burn-off resistance and ignition reliability need to be very high, automobile manufacturers such as BMW, Peugeot and Porsche use BERU spark plugs with platinum electrodes.

Technical Features

• Optimal, environmentally friendly combustion: saves fuel and protects the catalytic converter
• Reliable ignition under all operating conditions
• Long life, high dependability
• Proven materials: Two-component earth and centre electrode with nickel-jacketed copper core adapted exactly to the application purpose
• Versions same as OEM

Platinum — the special spark plug: Electrodes with platinum armouring ensure an extremely high burn-off resistance.

Specifications:

• Electrode Gap: 1.0mm (0.039")
• Thread Size: M 12 x 1.25
• Spanner Size: 14 / bi-hex
• Thread Length: 26.5mm

Recommendation - When changing the spark plugs on vehicles with connector ignition coils, please replace the connector and use spark plug connector grease to fit the connector.

Tightening Torque: 23 +3 Nm or 17+2 ft-lb

As modern engines become more efficient and compact, engine components such as Spark Plugs are required to become smaller too. The Bi-Hex design provides increased strength compared to a traditional hexagonal design, allowing for a more compact spark plug without compromising strength requirements.

See the Professional Grade Bi-Hex Spart Plug Socket here.

Affordable aftermarket set of NGK spark plugs for the 2007-2010 MINI Cooper S models with the N14 engine. Sold in packages of four (4)

Fits the following Cooper S models with the N14 engine:

• 2007-2010 R56 MINI Cooper S Hatchback
• 2008-2010 R55 MINI Cooper S Clubman
• 2009-2010 R57 MINI Cooper S Convertible
• Also compatible with the JCW models

NOTE: For modified MINIs with ECU tune or larger turbos, see MINI Cooper Colder Spark Plug for Modified MINIs.

NGK Laser Iridium Spark Plugs are the latest OE Spark Plug Design.  They Feature a Laser Welded 0.8mm Iridium center electrode along with Laser Welded Platinum on the Ground Electrode providing the strongest ignitability and the longest life possible.

Specifications:

• Center electrode core material:  Copper Core
• Center electrode tip material:  Iridium
• Gap size:  0.030 in.
• Ground configuration:  Standard
• Ground electrode core material:  Copper Core
• Ground electrode quantity:  1
• Ground electrode tip design:  Standard
• Hex size:  14mm
• Insulator height:  ISO
• Manufacturer heat range:  7
• Reach:  26.5mm
• Resistance:  5K ohms
• Seat type:  Gasket
• Thread diamter:  0.472 in

Tightening Torque: 23 +3 Nm or 17+2 ft-lb
Gap: pre-set at 0.032" (0.8mm)
Heat Range: 7

Notes:

• As modern engines become more efficient and compact, engine components such as Spark Plugs are required to become smaller too. NGK have recognised this and assisted by developing Bi-Hex Spark Plugs.
• Traditionally, Spark Plugs have been designed with a hexagonal socket style. The Bi-Hex design provides increased strength compared to a traditional hexagonal design, allowing for a more compact spark plug without compromising strength requirements.
• See the Professional Grade Bi-Hex Spart Plug Socket here.
• for 2002-2006 R50 / R53 MINI Cooper and Cooper S Hatchback, and 2005 - 2008 R52 MINI Convertibles Spark Plugs, see NME3010.