Heat Shield. Porsche 996 C2 / C4 3.4L 1997-08/01  ❭  99610442502

Iridium spark plug BPR8EIX - (Bosch ref W3DP / W3DP0)
Original equipment iridium spark plug, engineered to Porsche factory standards for turbocharged classic engines. Featuring a high-grade iridium centre electrode, this plug offers enhanced durability, precise ignition performance, and long service life while maintaining full OE compatibility.
Sold individually, 6 Required for 911 engines / 4 Required for 924 engines.

Fits:
Porsche 930 3.0 Turbo 01.75 - 12.77 191kw 260hp Engine type 930.50, 930.52
Porsche 930 3.3 Turbo 06.86 - 08.89 221kw 300hp Engine type 930.66

Porsche 924 2.0 Turbo 06.80 - 10.86 130kw 177hp Engine type M31.03

Porsche 911E 2.0L 09.68 - 12.69 103kw 140hp Engine type 901.09, 901.11
Porsche 911S 2.0L 07.66 - 11.68 118kw 160hp Engine type 901.02 901.08
Porsche 911S 2.0L 09.68 - 12.69 125kw 170hp Engine type 901.10
Porsche 911E 2.2L 09.69 - 12.71 114kw 155hp Engine type 911.01, 911.04
Porsche 911S 2.2L 09.69 - 12.71 132kw 180hp Engine type 911.02

This iridium spark plug ignites the compressed air-fuel mixture inside the combustion chamber, enabling controlled combustion and efficient power delivery. The fine iridium electrode produces a strong, focused spark, helping turbocharged engines achieve smoother running, improved throttle response, and reliable ignition under higher cylinder pressures.

Functions & Technical Role:
•  High-energy ignition spark for efficient combustion
•  Iridium electrode technology for exceptional wear resistance
•  Improved ignition stability under turbocharged operating conditions
•  Enhanced cold starting performance
•  Reduced misfires and uneven running
•  Factory-matched heat range & gap for Porsche turbo engines
•  Longer service intervals compared to conventional spark plugs

Spark plugs are critical to combustion efficiency, especially in turbocharged engines where cylinder pressures are higher. Over time, electrode wear and carbon build-up reduce spark quality, leading to misfires, poor boost response, and reduced performance. Replacing worn plugs restores reliable ignition, protects engine components, and helps maintain smooth, consistent power delivery.

When to replace spark plugs:
•  At Porsche-recommended service intervals
•  During routine servicing or ignition system checks
•  If experiencing misfires, hesitation, or rough idle
•  When cold starting becomes more difficult
•  If boost response or performance drops
•  During engine rebuilds or restorations
•  After long-term vehicle storage before returning to use

Related reference numbers
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99917012891

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Spark plug WR 7 DC+
Genuine OE Porsche spark plug, factory-engineered to deliver precise ignition performance, efficient combustion, and reliable operation. Direct replacement part maintaining original Porsche ignition standards.
Sold individually,  4, 6 or 8 required depending on engine type

Fits:
Porsche 911 3.2L  1984 - 89 *with catalyst
Porsche 924S 2.5L 1986 - 1988
Porsche 928S / 928S2 / 928S4 / 928GT 1983 - 1991
Porsche 944 / 944S / 944S2 / 944T 1985 - 1991
Porsche 912E 1976
Porsche 968 1992 - 1995 Coupe

Porsche engines rely on accurate ignition timing and stable combustion, especially under high compression and performance conditions. Using a genuine Porsche spark plug helps maintain smooth idle, crisp throttle response, optimal power delivery, and controlled emissions. It also ensures compatibility with Porsche engine management systems and ignition coils.

Designed as a direct replacement, this spark plug installs without modification and is suitable for routine servicing, diagnostics, or replacement of individual worn plugs while maintaining full OE integrity.

The spark plug generates a precisely timed electrical spark inside the combustion chamber to ignite the air-fuel mixture. This controlled ignition initiates combustion, allowing the engine to produce power efficiently and smoothly.

Function:
• Produces a consistent ignition spark for efficient combustion
• Supports smooth idle, responsive acceleration, and stable power output
• Helps maintain fuel efficiency and emission control
• Engineered to Porsche’s exact OE heat range and performance standards
• Designed for durability under high thermal and mechanical loads

Spark plugs naturally wear due to heat, combustion pressure, and electrical stress. A worn or incorrect spark plug can cause misfires, rough running, reduced power, increased fuel consumption, and higher emissions. Replacing worn plugs with a genuine Porsche OE spark plug ensures the ignition system continues to perform exactly as engineered, protecting engine performance, efficiency, and longevity.

When to replace:
•  Engine misfires or uneven idle
•  Reduced throttle response or loss of power
•  Increased fuel consumption
•  At Porsche-recommended service intervals
•  During routine engine servicing or ignition maintenance

Related reference numbers
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99917015690

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Spark Plugs WR5DC
6 Required per engine. Price is for each.



Fits:
PORSCHE 911T 2.0L 08.68 - 02.72 81KW 110HP ENGINE 901.03, 901.13
PORSCHE 911T 2.2L 01.70 - 12.72 92KW 125HP ENGINE 911.06; 911.07; 911.08; 911.03
PORSCHE 911T 2.4L 01.72 - 12.73 96KW 130HP ENGINE 911.57; 911.67
PORSCHE 911 2.7L 09.73 - 08.75 110KW 150HP ENGINE 911.92; 911.97; 911.41; 911.46
PORSCHE 911 2.7L 09.75 - 06.77 121KW 165HP ENGINE 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
PORSCHE 911S 2.7 08.73 - 01.76 129KW 175HP
ENGINE 911.93; 911.98; 911.42; 911.47

PORSCHE 914/6 2.0L 11.69 - 12.73 81KW 110HP ENGINE 901.36; 901.37

PORSCHE 924 2.0L 11.75 - 08.89 92KW 125HP ENGINE XJ; XK

Related reference numbers
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99917017990

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