BERU GN939 High-tech Glow Plug

BERU GN939 High‑Tech Glow Plug

The BERU GN939 High‑Tech Glow Plug is a precision‑engineered component designed to deliver reliable pre‑ignition performance in modern diesel engines. With its advanced ceramic core and robust construction, this glow plug ensures consistent heat output even under the most demanding operating conditions.

Key Technical Specifications

• Voltage: 11.5 V DC
• Current Rating: 16 A
• Thread Size: M10 × 1.0 mm
• Length: Approximately 147 mm (typical for European diesel applications)
• Material: High‑temperature ceramic core with a stainless steel housing
• Heat Output: Optimized for rapid engine start‑up at low ambient temperatures
• Operating Temperature Range: Up to 600 °C

Compatibility and Vehicle Coverage

The GN939 is engineered to fit a wide array of diesel engines across several major manufacturers. Its universal thread size and voltage rating make it suitable for:

• Ford: Transit Custom V362, Transit Mk6, Mondeo, Galaxy (WA6), and various chassis models
• Fiat: Ducato, 2.0/2.2 HDi engines, and other commercial vans
• Peugeot: Boxer, 2.0/2.2 HDi, and related diesel platforms
• Citroën: C4, C5, and other models sharing the same engine family
• Land Rover & Jaguar: Certain diesel variants requiring a 11.5 V glow plug
• Other OEMs: OTOSAN, LDV, LTI, and various commercial vehicle manufacturers that use the GN939 standard

Performance Highlights

The GN939 delivers a blend of durability and efficiency:

• Rapid Warm‑Up: The ceramic core heats quickly, reducing cold start times by up to 30 % compared with standard glow plugs.
• Long Life: Designed for high cycle counts, the plug can withstand thousands of start‑up cycles without degradation.
• Low Power Consumption: The 16 A current draw is optimized to minimize battery drain while maintaining effective heating.
• Consistent Heat Distribution: Uniform heat across the combustion chamber improves fuel efficiency and reduces emissions.

Installation Guidelines

1. Ensure the engine is cool before removal to avoid burns.
2. Unscrew the existing glow plug using a suitable socket or wrench, rotating counter‑clockwise.
3. Inspect the spark chamber for deposits; clean if necessary with a soft brush.
4. Insert the GN939, tightening clockwise until snug but not over‑torqued (recommended torque: 30 Nm).
5. Reconnect the electrical connector, verifying proper seating and secure contact.

Maintenance Tips

• Check for corrosion on the electrical contacts every 12 months or after a major service interval.
• Avoid using abrasive cleaners that could damage the ceramic core.
• If the engine exhibits prolonged cold starts, inspect the glow plug for signs of wear such as discoloration or cracking.

Why Choose BERU GN939?

The BERU GN939 High‑Tech Glow Plug stands out due to its proven reliability across a broad spectrum of diesel engines. Its combination of high heat output, low power consumption, and robust construction makes it an ideal choice for both commercial fleets and private vehicles that demand dependable performance in all weather conditions.

Conclusion

Whether you are servicing a fleet of Ford Transit vans, maintaining a Fiat Ducato, or ensuring the smooth operation of a Peugeot Boxer, the BERU GN939 High‑Tech Glow Plug delivers consistent, efficient pre‑ignition. Its universal fitment and durable design provide peace of mind for mechanics and vehicle owners alike.