NGK Glow Plug - 3852
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The Green Spark Plug CompanyNgk Glow Plug Y-502R (3852) New Ngk-Y-502R Size 20
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Product Information
Full details
This NGK Glow Plug (Part Number 3852, Trade No: Y-502R) is designed for diesel engines, ensuring reliable starting in cold weather conditions. It offers high-quality performance trusted by many car manufacturers. A potential caveat is the specific torque and voltage requirements that must be met for optimal function.
All features
| Model Part Number | 3852 |
|---|---|
| Brand | NGK |
Extended Product Information
FAQs
What is the primary function of a glow plug?
A glow plug heats the combustion chamber in a diesel engine to aid in starting, especially in cold conditions, by ensuring the air-fuel mixture reaches ignition temperature.
How do I know if my glow plugs need replacing?
Symptoms include difficult engine starting (especially when cold), rough idling after starting, increased exhaust smoke, and a glow plug warning light on the dashboard.
What torque should I use when installing the NGK Y-502R glow plug?
The recommended tightening torque for this glow plug is 17 Nm.
Can I use a glow plug with different specifications?
No, it is critical to use glow plugs that match the exact specifications (thread size, length, voltage, etc.) of your vehicle's engine to ensure proper fitment and function, and to avoid damage.
How many glow plugs does a typical diesel engine use?
Most diesel engines have one glow plug per cylinder, so the number will vary based on the engine's configuration (e.g., 4-cylinder, 6-cylinder).
What is the connector type for the power lead?
The connector type for the power lead is M4, with a recommended torque of 0.8-1.5 Nm.
Troubleshooting
Engine fails to start in cold weather
Verify that all glow plugs are functioning correctly and that the glow plug relay and wiring are in good condition. Check for proper voltage supply to the glow plugs.
Rough idling after starting
A faulty glow plug can cause incomplete combustion. Test each glow plug for continuity and ensure they are heating up properly. Check for proper fuel system operation.
Glow plug warning light stays on or flickers
This indicates a potential issue with the glow plug system. Check for a burnt-out glow plug, a faulty relay, or wiring problems. A diagnostic scan may be required.
Pros and Cons
Pros
- Ensures safe start-up from low ambient temperatures.
- Contributes to lower emissions during the warm-up phase.
- Utilizes proven NGK technology trusted by car manufacturers.
- Durable metal construction for longevity.
Cons
- Requires precise torque and voltage for optimal function.
- Specific thread size (M10 x 1.0mm) limits compatibility to certain engines.
- Sold individually, requiring purchase of multiple units for multi-cylinder engines.
Setup, Compatibility & Care
Compatibility:
This glow plug is designed with specific dimensions and electrical properties. Ensure your vehicle's diesel engine requires a glow plug with:
- Thread Size: M10 x 1.0mm
- Overall Length: 76mm
- Fitting Depth: 24.5mm
- Hex Nut Size: 10 mm
- Voltage: 11v
Always consult your vehicle's service manual to confirm part compatibility before installation.
Installation:
- Ensure the engine is cool.
- Carefully remove the old glow plug.
- Clean the glow plug receptacle.
- Install the new NGK glow plug, ensuring it is seated correctly.
- Tighten the glow plug to the specified torque of 17 Nm. Over-tightening can damage the cylinder head, while under-tightening can lead to poor performance.
- Connect the power lead to the M4 connector (0.8-1.5 Nm).
Care:
Glow plugs are typically maintenance-free components. However, proper installation and ensuring the electrical system is functioning correctly are key to their longevity. Regular checks of the engine's starting system are recommended.