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Spark plug, Double-iridium. Porsche 991.2 / 992 / Boxster 718 (982) / Cayman 718 (982) - 0PB905612
0PB905612/2
Vehicle Group
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 992.1 Carrera 2 3.0L 2019-24
- Porsche 992.1 Carrera 4 3.0L 2019-24
- Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Targa 4 3.0L 2020-24
- Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
Information
Spark Plug, ZR5. Double Iridium
Double-iridium spark plugs are particularly suited to modern Porsche engines, which demand accurate ignition timing, stable combustion, and long service intervals. This design helps maintain smooth idle, crisp throttle response, efficient fuel burn, and consistent power delivery over extended mileage.
Sold individually, 4 or 6 Required per engine
Fits:
Porsche 718 (982) Boxster 2.0L 2017>> (4 Required)
Porsche 718C (982C) Cayman 2.0L 2017>> (4 Required)
Porsche 991.2 Carrera 2017 - 2019 (6 Required)
Porsche 992.1 Carrera 2019 - 2024 (6 Required)
The spark plug produces a precisely timed electrical spark to ignite the air-fuel mixture in the combustion chamber. The double-iridium construction ensures a strong, stable spark and reduced electrode wear, supporting efficient combustion and reliable engine performance. The use of iridium on both the centre and ground electrodes allows for a finer electrode tip, improving spark efficiency while significantly increasing resistance to wear under extreme heat and combustion pressure.
Engineered as a direct replacement, this spark plug installs without modification and is ideal for routine servicing, scheduled maintenance, or replacement of individual plugs while maintaining OE-level performance.
Function:
• Generates a consistent ignition spark for efficient combustion
• Double-iridium electrodes improve durability and spark stability
• Supports smooth idle and responsive acceleration
• Helps maintain fuel efficiency and emission control
Standard spark plugs wear over time, which can lead to misfires, rough running, reduced performance, and increased fuel consumption. A double-iridium OE Match spark plug offers enhanced durability and longer service life, helping maintain consistent ignition performance and protecting ignition coils and catalytic converters from damage caused by incomplete combustion.
When to replace:
• Engine misfires or uneven idle
• Reduced throttle response or loss of power
• Increased fuel consumption
• Manufacturer’s recommended maintenance interval reached
• During routine tune-up or ignition system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB905612
The product you are viewing cross references to these numbers
Double-iridium spark plugs are particularly suited to modern Porsche engines, which demand accurate ignition timing, stable combustion, and long service intervals. This design helps maintain smooth idle, crisp throttle response, efficient fuel burn, and consistent power delivery over extended mileage.
Sold individually, 4 or 6 Required per engine
Fits:
Porsche 718 (982) Boxster 2.0L 2017>> (4 Required)
Porsche 718C (982C) Cayman 2.0L 2017>> (4 Required)
Porsche 991.2 Carrera 2017 - 2019 (6 Required)
Porsche 992.1 Carrera 2019 - 2024 (6 Required)
The spark plug produces a precisely timed electrical spark to ignite the air-fuel mixture in the combustion chamber. The double-iridium construction ensures a strong, stable spark and reduced electrode wear, supporting efficient combustion and reliable engine performance. The use of iridium on both the centre and ground electrodes allows for a finer electrode tip, improving spark efficiency while significantly increasing resistance to wear under extreme heat and combustion pressure.
Engineered as a direct replacement, this spark plug installs without modification and is ideal for routine servicing, scheduled maintenance, or replacement of individual plugs while maintaining OE-level performance.
Function:
• Generates a consistent ignition spark for efficient combustion
• Double-iridium electrodes improve durability and spark stability
• Supports smooth idle and responsive acceleration
• Helps maintain fuel efficiency and emission control
Standard spark plugs wear over time, which can lead to misfires, rough running, reduced performance, and increased fuel consumption. A double-iridium OE Match spark plug offers enhanced durability and longer service life, helping maintain consistent ignition performance and protecting ignition coils and catalytic converters from damage caused by incomplete combustion.
When to replace:
• Engine misfires or uneven idle
• Reduced throttle response or loss of power
• Increased fuel consumption
• Manufacturer’s recommended maintenance interval reached
• During routine tune-up or ignition system servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB905612
99917015490
0242145552
0PB905612
The product you are viewing cross references to these numbers
Price: £10.80
In stock
Related products
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Ignition coil packs, PACK OF 6
This OE Match ignition coil set includes six coil-on-plug ignition coils, designed for Porsche flat-six engines used in models such as the Porsche 911 (996 / early 997), Boxster (986 / early 987) and Cayman variants. Each coil mounts directly onto a spark plug and delivers the high-voltage spark required to ignite the air-fuel mixture inside the engine cylinders.
Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 1902
Porsche Boxster S 986 3.2L 1999 - 1902
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001
Please note: if you require screws order code 90006708901
The ignition coils generate the high-voltage electrical pulse required to create a spark at the spark plug. This spark ignites the air-fuel mixture inside the combustion chamber, enabling the engine to produce power.
Replacing all six coils at the same time ensures uniform ignition performance and prevents issues caused by mismatched coil age or output.
Function
• High-Voltage Generation: Converts 12-volt electrical power into ignition spark voltage
• Cylinder Ignition: Delivers spark directly to each spark plug
• Engine Performance: Supports smooth combustion and consistent power delivery
• Balanced Operation: Six matched coils ensure even ignition across all cylinders
Ignition coils operate in a high-temperature environment close to the engine. Over time the plastic housings can crack or internal components may weaken, leading to misfires, rough running or reduced engine performance. Replacing all coils together ensures consistent spark energy across all cylinders and restores smooth engine operation.
When to Replace. Consider replacing the ignition coils if you notice:
• Engine misfires or rough idle
• Loss of power during acceleration
• Check engine light related to ignition faults
• Cracked ignition coil housing
• During spark plug replacement or major engine service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SERVICEPACK996
The product you are viewing cross references to these numbers
This OE Match ignition coil set includes six coil-on-plug ignition coils, designed for Porsche flat-six engines used in models such as the Porsche 911 (996 / early 997), Boxster (986 / early 987) and Cayman variants. Each coil mounts directly onto a spark plug and delivers the high-voltage spark required to ignite the air-fuel mixture inside the engine cylinders.
Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 1902
Porsche Boxster S 986 3.2L 1999 - 1902
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001
Please note: if you require screws order code 90006708901
The ignition coils generate the high-voltage electrical pulse required to create a spark at the spark plug. This spark ignites the air-fuel mixture inside the combustion chamber, enabling the engine to produce power.
Replacing all six coils at the same time ensures uniform ignition performance and prevents issues caused by mismatched coil age or output.
Function
• High-Voltage Generation: Converts 12-volt electrical power into ignition spark voltage
• Cylinder Ignition: Delivers spark directly to each spark plug
• Engine Performance: Supports smooth combustion and consistent power delivery
• Balanced Operation: Six matched coils ensure even ignition across all cylinders
Ignition coils operate in a high-temperature environment close to the engine. Over time the plastic housings can crack or internal components may weaken, leading to misfires, rough running or reduced engine performance. Replacing all coils together ensures consistent spark energy across all cylinders and restores smooth engine operation.
When to Replace. Consider replacing the ignition coils if you notice:
• Engine misfires or rough idle
• Loss of power during acceleration
• Check engine light related to ignition faults
• Cracked ignition coil housing
• During spark plug replacement or major engine service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SERVICEPACK996
99760210700
99760210702
99660210200
99760210702
99660210101
99660210200
99760210700
0986221116
99760210703
99917020791
90006708901
99610532552
99760210704
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
6 x Ignition coil pack. Porsche 996 3.4L / Boxster 986 >>03 (99760210704/3)
Unit Price: £22.00
InStock
Price: £132.00
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Replacement spark plug tube with new o-rings.
This spark plug tube is engineered as a direct replacement for the original Porsche spark plug tube. It provides a sealed, precision-fit channel through the cylinder head for the spark plug, preventing coolant ingress while supporting proper plug alignment and ignition performance.
Sold individually, 6 required per engine.
Fits:
Porsche 986 Boxster / Boxster S 1997 - 2002
Porsche 996 C2 / C4 3.4L 1998 - 2001
Diagram ref no 27, 28 and 29.
The spark plug tube provides a protective and sealed passage for the spark plug through the cylinder head. It:
• Supports and protects the spark plug from contamination by engine coolant
• Prevents coolant intrusion into the spark plug well
• Maintains electrical insulation and correct plug orientation
• Helps preserve consistent ignition performance and combustion integrity
Spark plug tubes are subjected to age, heat, coolant chemicals, and vibration. Over time the tube can stiffen, crack, or lose sealing effectiveness, allowing coolant to seep into the plug well. This often leads to misfires, poor starting, coil damage, or electrical shorts, and is a common service item on aging Porsche M96 engines. Replacing compromised tubes with a high-quality OE Match spark plug tube restores the correct seal and prevents expensive ignition coil or wiring damage, especially during engine rebuilds, head gasket services, or preventative maintenance.
When to replace:
• During cylinder head removal or service
• Evidence of coolant in spark plug wells
• Misfires or ignition issues traced to moisture/coolant
• Cracked, brittle, or deteriorated tube material
• Preventive refresh on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610532552
The product you are viewing cross references to these numbers
This spark plug tube is engineered as a direct replacement for the original Porsche spark plug tube. It provides a sealed, precision-fit channel through the cylinder head for the spark plug, preventing coolant ingress while supporting proper plug alignment and ignition performance.
Sold individually, 6 required per engine.
Fits:
Porsche 986 Boxster / Boxster S 1997 - 2002
Porsche 996 C2 / C4 3.4L 1998 - 2001
Diagram ref no 27, 28 and 29.
The spark plug tube provides a protective and sealed passage for the spark plug through the cylinder head. It:
• Supports and protects the spark plug from contamination by engine coolant
• Prevents coolant intrusion into the spark plug well
• Maintains electrical insulation and correct plug orientation
• Helps preserve consistent ignition performance and combustion integrity
Spark plug tubes are subjected to age, heat, coolant chemicals, and vibration. Over time the tube can stiffen, crack, or lose sealing effectiveness, allowing coolant to seep into the plug well. This often leads to misfires, poor starting, coil damage, or electrical shorts, and is a common service item on aging Porsche M96 engines. Replacing compromised tubes with a high-quality OE Match spark plug tube restores the correct seal and prevents expensive ignition coil or wiring damage, especially during engine rebuilds, head gasket services, or preventative maintenance.
When to replace:
• During cylinder head removal or service
• Evidence of coolant in spark plug wells
• Misfires or ignition issues traced to moisture/coolant
• Cracked, brittle, or deteriorated tube material
• Preventive refresh on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610532552
99970734341
99970721540
The product you are viewing cross references to these numbers
Price: £5.25
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Ignition coil pack
This OE Match ignition coil is an engine ignition component designed for several Porsche flat-six engines, including models such as the Porsche 911 (996 / early 997), Boxster (986 / early 987) and related variants. The ignition coil sits directly above the spark plug and converts battery voltage into the high-voltage spark required to ignite the air-fuel mixture inside the combustion chamber.
Sold individually, 6 Required per engine. Price is for each.
Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 2002
Porsche Boxster S 986 3.2L 1999 - 2002
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001
Please note: if you require screws order code 90006708901
This OE Match ignition coil is designed to match the original Porsche component in shape, electrical characteristics and mounting configuration. It integrates the spark plug connector and coil housing, delivering high-voltage ignition directly to the spark plug for reliable combustion.
This component is commonly replaced during ignition system maintenance, particularly when misfires occur or when performing full ignition service.
The ignition coil converts the vehicle’s low-voltage battery power into high-voltage electrical energy, creating the spark needed to ignite the air-fuel mixture in the engine cylinders.
A properly functioning coil ensures smooth engine operation, consistent power delivery and efficient combustion.
Ignition coils are exposed to high heat and vibration within the engine bay. Over time they can develop cracks in the housing or internal electrical faults, which may cause engine misfires, rough running or loss of power. Replacing worn ignition coils restores proper ignition performance and helps maintain smooth engine operation.
When to Replace. Consider replacing the ignition coil if you notice:
• Engine misfires or rough idle
• Loss of power during acceleration
• Check engine light related to ignition faults
• Cracked or damaged coil housing
• During spark plug or ignition system service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760210704
The product you are viewing cross references to these numbers
This OE Match ignition coil is an engine ignition component designed for several Porsche flat-six engines, including models such as the Porsche 911 (996 / early 997), Boxster (986 / early 987) and related variants. The ignition coil sits directly above the spark plug and converts battery voltage into the high-voltage spark required to ignite the air-fuel mixture inside the combustion chamber.
Sold individually, 6 Required per engine. Price is for each.
Fits:
Porsche Boxster 986 2.5L 1997 - 1999
Porsche Boxster 986 2.7L 1999 - 2002
Porsche Boxster S 986 3.2L 1999 - 2002
Porsche 996 C2 3.4L 1997 - 08/2001
Porsche 996 C4 3.4L 1997 - 08/2001
Please note: if you require screws order code 90006708901
This OE Match ignition coil is designed to match the original Porsche component in shape, electrical characteristics and mounting configuration. It integrates the spark plug connector and coil housing, delivering high-voltage ignition directly to the spark plug for reliable combustion.
This component is commonly replaced during ignition system maintenance, particularly when misfires occur or when performing full ignition service.
The ignition coil converts the vehicle’s low-voltage battery power into high-voltage electrical energy, creating the spark needed to ignite the air-fuel mixture in the engine cylinders.
A properly functioning coil ensures smooth engine operation, consistent power delivery and efficient combustion.
Ignition coils are exposed to high heat and vibration within the engine bay. Over time they can develop cracks in the housing or internal electrical faults, which may cause engine misfires, rough running or loss of power. Replacing worn ignition coils restores proper ignition performance and helps maintain smooth engine operation.
When to Replace. Consider replacing the ignition coil if you notice:
• Engine misfires or rough idle
• Loss of power during acceleration
• Check engine light related to ignition faults
• Cracked or damaged coil housing
• During spark plug or ignition system service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760210704
99760210700
99760210702
99660210200
99760210703
99760210702
99660210101
99760210700
99760210702
99660210200
The product you are viewing cross references to these numbers
Price: £22.00
In stock
Vehicle Group
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Ignition coil. 6 Required per engine. Price is for each.
The 99760210405 is the individual coil module used on the Porsche M96 and M97 M-series engines in many 986/996/987/early 997 cars. Normally should be replaced as a set of six coils (one per cylinder)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760210405
The product you are viewing cross references to these numbers
The 99760210405 is the individual coil module used on the Porsche M96 and M97 M-series engines in many 986/996/987/early 997 cars. Normally should be replaced as a set of six coils (one per cylinder)
Why these coils should be replaced
Age / thermal breakdown: coils are exposed to heat cycles and can develop internal insulation breakdown or hairline cracks in the housing. Over time this causes weak or leaking high voltage and intermittent sparks.
Misfire symptoms: a failing coil will cause single-cylinder misfires (P030x codes), rough idle, reduced power, increased fuel consumption and catalytic converter heating/damage if left. These are the most common reasons owners replace coils.
Carbon tracking / cracking: visible cracks or carbon tracking on the coil boot can provide a leakage path for spark, reducing performance and causing intermittent faults.
Connector / wiring issues: corroded or loose coil connectors can mimic coil failures; inspect connectors when replacing coils.
Fits:
Porsche 996 3.6L Inc C2 / C4 / C4S
Porsche 986 Boxster 2.7L / 3.2L 2003>>
Porsche 996 GT3 MKI
Porsche 996 GT3 MKII
Porsche 996 Turbo
Porsche 987 Boxster 2.7L / 3.2L
Porsche 987C Cayman 2.7L / 3.4L
Porsche 997 3.6L, 3.8L / 997 GT3
Common issues reported in practice
- One or more cylinders misfire when the engine is hot but behave quite normally when cold (typical of internal coil failure or heat-sensitive cracks).
- Cracked coil housings on Boxster/996 cars, owners often replace the entire set for reliability.
- After a spark plug change, misfires appear because weakened coils can fail once higher-voltage plugs are installed; this is a frequently reported pattern.
How to diagnose (practical steps)
- Read codes: P0300 / P0301–P0306 point to misfires; note which cylinder is affected.
- Swap test: swap the suspected coil with another cylinder’s coil — if the misfire follows the coil, the coil is bad. (Common, quick field test used by owners.)
- Measure resistance: check primary and secondary coil resistances at ~20°C and compare to the ranges above.
- Visual inspection: look for cracks, carbon tracking, oil ingress, or damaged boots/connectors.
- Oscilloscope / HV probe: for deeper diagnosis a scope or HV probe can show spark energy, but most DIY diagnostics use swap + resistance checks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760210405
99760210400
99760210402
99660210400
99760210404
99760210400
0986221119
90660210200
90660210301
99660210100
99660210101
99660210200
99660210400
99760210400
99760210401
99760210402
99760210404
99760210700
99760210702
245752
2504992
99760210406
99760210405
90660210101
The product you are viewing cross references to these numbers
Price: £18.50
In stock