An automotive glow plug designed to accelerate diesel cold starts through rapid preheating and robust construction, useful for workshop and DIY fitting. Bosch Glow Plug Duraterm HighSpeed brings quicker starts and steadier idling on chilly mornings. Will the Duraterm HighSpeed match your engine's requirements and service needs?
⚡ At a Glance
- • Heating Performance: Rapid preheat to roughly 950 °C in about 3 seconds using Duraterm HighSpeed technology
- • Best for: Owners of diesel vehicles seeking reliable cold starts and consistent idle
- • Not ideal for: Petrol engines or diesel engines requiring a different thread or voltage specification
Duraterm HighSpeed design reaches preheating temperature very quickly and supports adjustable operation. Low-voltage design reduces strain on battery and alternator during cold starts.
Faster starting in cold weather – thanks to Duraterm HighSpeed preheating
Duraterm HighSpeed technology reaches a preheating temperature of about 950 °C in roughly three seconds at the specified voltage. Low-voltage design for this item is 4.4 V, which still achieves rapid heating performance.
Shorter crank times on cold mornings and fewer failed starts, delivering a more reliable morning routine for diesel drivers.
Quieter idling and smoother regeneration – with extended post-glow capability
Post-glow operation can run for up to six minutes to support intermediate and regeneration annealing cycles and assist combustion after initial start. Adjustable heating allows calibration to engine needs.
Calmer idling and improved combustion during warm-up and regeneration phases, helpful on long drives and for engines with particulate filters.
Durable service life – with Bosch glow tube and corrosion protection
Bosch glow tube construction adds resistance to corrosion and contributes to longer operational life compared with basic designs. The part is supplied in a carton box as a single piece.
Less frequent replacements and dependable performance over time, reducing workshop visits and maintenance hassle.
✨ The 4 Key Reasons for Bosch Glow Plug Duraterm HighSpeed
- Very fast preheat - Cuts crank time significantly on cold starts
- Adjustable temperature control - Adapts heating to engine and load requirements
- Extended post-glow - Maintains combustion support for up to six minutes
- Low-voltage design - Reduces battery drain and alternator stress during starts
📋 Technical Details at a Glance
- Part Type: Glow plug
- Brand: Bosch
- Model: Duraterm HighSpeed
- Voltage: 4.4 V (low-voltage design)
- Thread (ISO): M10 x 1
❓ Frequently Asked Questions
Q: Will this glow plug fit any diesel vehicle?
A: Compatibility must be confirmed using the vehicle identification, and all manufacturer restrictions must be observed.
Q: How quickly does the Duraterm HighSpeed reach operating temperature?
A: Preheating reaches approximately 950 °C in about three seconds at the specified voltage.
Q: Does the low-voltage design help the vehicle electrical system?
A: Low-voltage options (4.4 or 5.0 volts in the Duraterm range) reduce battery drain and lighten alternator load during cold starts.
🏆 Our Verdict
Suitable for diesel vehicle owners and professional fitters who value dependable cold starts and quieter idling. Rapid preheating, adjustable temperature control and extended post-glow make the Duraterm HighSpeed a practical upgrade for engines needing reliable warm-up behaviour. While initial purchase should be considered alongside compatibility, the durable construction and electrical protection support long-term value.
