Spark Plug B7ES - Marine/Outboard Ignition | 4Boats
B7ES-NGK
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Spark Plug B7ES delivers reliable ignition for small marine engines and outboard engines with NGK quality construction.
The NGK B7ES marine spark plug is ideal for recreational boats, tenders and small outboard motors, offering consistent starts and smooth throttle response. As a dependable outboard spark plug for small marine engines, it helps maintain efficient combustion in varied operating conditions and is easy to service during routine maintenance. Compatible with many small engine models, itβs a popular choice for boat owners seeking trusted NGK B7ES performance. For fitment guidance and related parts, see our Ignition & Electrical collection.
- Model: B7ES
- Center electrode: V-groove design for improved ignitability
- Electrode material: nickel construction
- Recommended gap: 0.7 mm (0.Γ 28 in)
- Heat rating: 7 (suitable for a wide range of small engines)
- Designed for marine and outboard applications
- Direct replacement for compatible OEM spark plugs
Commonly compatible with many small outboard makes such as Yamaha, Mercury and Suzuki; always check your engine manual or OEM part numbers for exact fitment.
Check your engine manual for replacement intervals, and fit with the recommended gap for best performance.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for the most items over Β£150.