Spark Plug NGK BP5HS

This NGK BP5HS spark plug (HST0643) is a genuine replacement part designed to fit a range of Wacker petrol engines commonly used in plate compactors, rammers and other compact plant equipment across UK construction and groundworks sites. A worn or fouled spark plug is one of the most common causes of hard starting and rough running in small petrol engines.

Replacing spark plugs at the manufacturer's recommended service interval helps maintain efficient combustion, reliable cold starting and consistent power output - particularly important for plant hire machines that need to start first time, every time, on site. As a genuine NGK part, this plug gives fitters confidence in fit and performance compared with unbranded alternatives.

• Genuine NGK spark plug
• Model: BP5HS
• Fits Wacker petrol engines
• Supports reliable ignition and cold starting performance
• Recommended as part of routine engine servicing

Top tips for spark plug maintenance

• Check the plug's electrode gap against the engine manufacturer's specification before fitting, even on a new plug.
• Replace spark plugs at the recommended service interval rather than waiting for a starting fault to appear.
• Keep spares in the workshop van for common engine types in your fleet - a fouled or worn plug is one of the quickest fixes for a no-start callout.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£30.00 for delivery before 10:30am
£25.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.