🚚 Fast Shipping Options: Express & Standard Available

🌍 EU & International Shipping Available

  • Free shipping over £50

  • Free help & advice

  • Hassle-free returns

  • Open 5 days a week

JFC Agri — Up to 22% Off!

NGK  |  SKU: PT-BM6A

NGK BM6A Standard Spark Plug – Non-Resistor Copper Core for Lawnmowers, Strimmers & Classic Engines – NGK 5921

Regular price £4.50
Shipping calculated at checkout.

Auto-renews, skip or cancel anytime.

To add to cart, go to the product page and select a purchase option

Delivery and Shipping info

  • Standard delivery (2-4 working days) - £4.99 on eligible UK mainland orders under £50.

  • Express delivery - £6.99 on eligible UK mainland orders placed before 2pm.

  • Large equipment including JFC Agri products, and international orders are subject to different delivery rates and timescales.

Returns

Start Your Return Online (Recommended)

  1. Log In: Sign into your account on our website.
  2. Select Order: Navigate to your order history and select the item you wish to return.
  3. Initiate Return: Follow the simple prompts to start your return.

A Thank You to Our Valued Customers.

Ensure reliable ignition in your small engine and classic equipment with the NGK BM6A spark plug – the OE-style replacement for Briggs & Stratton, Echo, Poulan, Honda, Kawasaki, Yamaha, Toyota, and Kubota applications . Features a 98% pure copper core for superior heat dissipation, nickel-alloy electrodes for consistent wear, and cold-rolled threads to prevent cylinder head damage.

This non-resistor plug delivers a hotter spark for better combustion in non-EMI-sensitive applications. Pre-gapped at 0.7mm (0.028") – always verify and adjust to your equipment's specification .


 

Vehicle Fitment:

Equipment Type Manufacturer / Models
Lawn & Garden Briggs & Stratton, Echo, Poulan 
Motorcycles Honda, Kawasaki, Yamaha 
ATVs / Utility Kubota, generic ATV applications 
Power Equipment Generators, micro farm pumps 
Classic/Vintage Stationary engines, veteran/classic vehicles 

Verified customer applications: Hedge cutters, lawnmowers (2), chainsaws . Always verify fitment using your equipment's model and engine code before ordering.


 

OEM & Cross-Reference Numbers:

Brand Part Numbers
NGK BM6A (5921) 
Champion CJ8, CJ11 
Honda 98073-56740, 98073-56750 
Kawasaki 92070-2051, E92070-2051 
Kubota 07909-22250, 07909-23150 
Toyota/Lexus 90098-20355 
Yamaha 90890-78074, 90890-78102 
Oregon 77-302-1 
Cross References CS45, WS6E, WS7E, WS8E, W20M, W20M-U, 0241229560, 5846 

 

Product Specifications:

Specification Details
NGK Part Number BM6A
NGK Stock Number 5921 
Type Standard – Non-Resistor 
Thread Size 14mm x 1.25mm 
Thread Reach 9.5mm (3/8") 
Hex Size 19mm (3/4") 
Seat Type Flat / Gasket 
Spark Gap (Pre-Set) 0.7mm (0.028") 
Center Electrode Nickel, 2.5mm, Non-Projected 
Center Core 98% Pure Copper 
Ground Electrode Nickel, single 
Heat Range
Terminal Type Removable Nut (SAE / M4 thread) 
Overall Height Bantam 
Maximum Service Life 150 hours 
Country of Origin Japan / Brazil 
Condition Genuine NGK New

Why Choose NGK BM6A?

  • 98% pure copper core – Superior heat dissipation for reliable starts and reduced overheating risk 

  • Non-resistor construction – Hotter spark for better combustion in classic and magneto ignition systems 

  • Nickel-alloy electrodes – Consistent wear resistance and extended service life

  • Cold-rolled threads – Prevents cross-threading and costly cylinder head damage 

  • Trivalent metal plating – Corrosion resistant; no anti-seize required 

  • Removable terminal nut – Universal fitment for various plug cap styles 

  • Bantam height – Compact design for confined engine spaces 

Customer-Verified Performance:

"I purchased this as a replacement for the cheap and nasty copy plug that came with my multitool machine. It is excellent quality at a great price and from a reputable manufacturer." 

"I had noticed that my strimmer was getting harder to start... Now the strimmer is starting first pull again." 

"I have purchased these sparks plugs before. I use them in Hedge cutter, lawnmowers (2) and in chain saw. They have proved to give long life." 

⚠️ Important: This is a non-resistor plug. Not suitable for modern vehicles with EMI-sensitive ECUs. Champion CJ8 is a direct cross-reference .

Torque: 12–12.7 ft-lb (17.2 Nm) for 14mm gasket-seat plugs.

Trust the original. Trust NGK.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.