NGK BP6ES Spark Plug - 14mm Thread (Long Reach)

The NGK BP6ES is a colder long-reach spark plug designed for use in high-performance, high-compression, or hard-driven air-cooled Volkswagen engines. It is the ideal choice for engines fitted with aftermarket or performance cylinder heads that require a 14mm thread and 19mm reach, such as those found in tuned Beetles, Karmann Ghias, and Type 2 or Type 3 engines.

This plug’s projected insulator design (P) ensures efficient flame spread across the combustion chamber, improving throttle response and combustion efficiency. The colder heat range (6) helps dissipate heat more effectively, reducing the risk of pre-ignition or detonation under extreme conditions — perfect for engines with increased compression ratios or running extended high-load driving.

Constructed with a solid copper-core electrode, the BP6ES provides reliable spark performance, excellent heat transfer, and long service life. The standard 21mm spanner size and M4 terminal type make installation easy, while NGK’s renowned build quality guarantees consistent ignition and dependable operation in all conditions.

Key Features:

• Genuine NGK BP6ES long-reach spark plug
• Suited for high-performance or high-compression air-cooled VW engines
• Colder heat range (6) ideal for tuned or turbocharged applications
• Projected insulator (P) enhances combustion and engine efficiency
• 14mm x 1.25 thread, 19mm reach, 21mm spanner size
• Copper-core electrode for superior conductivity and cooling
• M4 terminal type for standard ignition lead fitment
• Sold each – 4 required per engine

Applications:

• VW Beetle performance engines (high-compression or tuned)
• VW Karmann Ghia, Type 2 (Split & Bay), and Type 3 with performance heads
• Engines fitted with long-reach 14mm plugs
• Suitable for CB Performance or aftermarket aluminium cylinder heads
• High-load or competition engines needing improved heat control

NGK Code Explained:

• B – 14mm thread diameter
• P – Projected insulator type
• 6 – Heat range (2 = hot, 10 = cold; 6 = colder than BP5ES)
• E – 19mm thread reach (long reach)
• S – Standard design features

Specification:

• Thread size: M14 x 1.25
• Thread reach: 19mm
• Spanner size: 21mm
• Terminal type: M4
• Electrode core: Copper
• Quantity: Sold each