STIHL Spark Plug Boot for FS 240, KM 131 & MS 151 Machines - 0000 405 1005

The STIHL Spark Plug Boot is a genuine OEM replacement cap designed to connect the ignition lead securely to the spark plug on compatible STIHL petrol machines. Manufactured from heat-, fuel- and oil-resistant rubber with a secure internal metal contact, this spark plug boot helps maintain a clean, stable high-voltage connection for reliable starting and smooth engine running.

Built to STIHL original equipment standards, this angled plug cap helps insulate the ignition connection, reduce strain on the HT lead and prevent arcing, dirt and moisture ingress. It is ideal for professional landscapers, arborists, grounds maintenance teams, hire fleets, farmers and domestic users replacing a cracked, hardened, loose or damaged spark plug boot on compatible STIHL brushcutters, KombiEngines, hedge trimmers, pole pruners and compact chainsaws.

Key Features

• Genuine STIHL OEM spark plug boot for precise fit and long service life
• Manufacturer Part Number: 0000 405 1005
• Durable heat-, fuel- and oil-resistant rubber housing
• Secure internal metal contact for reliable electrical connection
• Helps minimise misfire, arcing and intermittent spark faults
• Angled low-profile design improves clearance around the cylinder head
• Helps reduce strain on the ignition lead during use
• Good insulation helps protect against water, dirt and moisture ingress
• Supports easier starting, smooth idling and stable engine performance
• Simple push-fit replacement on the existing HT lead

Typical Applications

This STIHL spark plug boot is used during routine servicing or repair when the original ignition cap is cracked, hardened, loose, damaged or causing unreliable ignition. It is suitable for resolving intermittent spark, poor starting, misfire or rough running caused by a worn plug boot, and is ideal for machines used in landscaping, forestry, grounds care, farming, hire fleets and general property maintenance.

Technical Specification

Fits Models

• STIHL BT 131, BT131
• STIHL FC 91, FC 96, FC 111, FC91, FC96, FC111
• STIHL FR131T, FR410C, FR460TC
• STIHL FS89, FS89R, FS91, FS91R
• STIHL FS111, FS111R, FS111RX
• STIHL FS131, FS131R
• STIHL FS240, FS240C, FS240RC
• STIHL FS260, FS260C, FS260RC
• STIHL FS311, FS360C, FS410C, FS460C, FS460RC
• STIHL HT102, HT103, HT132, HT133, HT135
• STIHL KM91R, KM111R, KM131, KM131R
• STIHL MS150C, MS150T C, MS150TC
• STIHL MS151C, MS151TC

Also Known As

• STIHL ignition boot
• STIHL spark plug cap
• STIHL HT cap
• STIHL plug connector
• STIHL plug top
• STIHL suppressor cap
• STIHL ignition lead cap
• STIHL FS 240 spark plug boot
• STIHL KM 131 ignition cap
• STIHL MS 151 spark plug cap

Why Choose Genuine STIHL Parts?

Genuine STIHL parts are manufactured to match the original specification for fit, insulation, durability and ignition performance. Choosing an original STIHL spark plug boot helps maintain a secure high-voltage connection, reliable spark delivery and dependable engine running, reducing the risk of poor starting, misfire, arcing or moisture-related ignition faults.

Explore More

• STIHL Spare Parts
• STIHL Parts Finder
• Brushcutter & Strimmer Accessories
• Chainsaw Parts
• Sharpening & Maintenance Tools

FAQs

Is this a genuine STIHL spark plug boot?

Yes, this is a genuine STIHL OEM spark plug boot manufactured to original equipment standards.

What is the part number for this STIHL spark plug boot?

The manufacturer part number is 0000 405 1005. It may also be listed as 0000-405-1005 or 00004051005.

Which STIHL machines does this spark plug boot fit?

This spark plug boot fits selected STIHL machines including FS 240, FS 260, FS 111, FS 131, KM 131, KM 111 R, HT 135, MS 150 and MS 151 models.

What does a spark plug boot do?

A spark plug boot connects the ignition lead to the spark plug, insulates the high-voltage connection and helps prevent arcing, moisture ingress and intermittent spark faults.

When should this spark plug boot be replaced?

Replace the spark plug boot if it is cracked, hardened, loose, damaged, arcing, causing intermittent spark or contributing to poor starting, misfire or rough running.

UK Delivery

Fast, reliable delivery from our UK warehouse.

• FREE UK Standard Delivery
  applies to eligible UK orders over £75 ex VAT.
  Estimated delivery: 2–4 working days
  

• UK Standard Delivery from £3.60 + VAT
  Estimated delivery: 2–4 working days

• Next Working Day Delivery – £6.00 + VAT
  
  Order before 3:00pm (Monday–Friday) for next working day delivery
  

All UK orders are dispatched Monday–Friday and sent via a tracked courier service.