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Details
| Specification | Value |
|---|---|
| Brand | NGK |
| Voltage [V] | 11.0 V |
| Connector type | M4 |
| Thread Size | M8 x 1.0 |
| Resistor [Ohm] | 0.9 Ohm |
| Overall Length [mm] | 69.0 mm |
| Spanner Size | 10 mm |
| Current Strength [A] | 5.5 A |
| Fitting Depth [mm] | 19.0 mm |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
- KUBOTA—16851-65512
About this product
When glow plug performance matters, the NGK 2649 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Voltage [V]: Bronze, 0 V, Connector type: M4, Thread Size: M8 x 1, 0, Resistor [Ohm]: 0, Stainless Steel Ohm, Overall Length [mm]: 69, 0 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 0 100 800 045, 16851-65512, E2519800045A1, GN082 and 1 more. Matching these numbers confirms a like-for-like replacement with no loss of function. NGK is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Glow Plug buying guide
Why replace this part?
Glow plugs pre-heat diesel combustion chambers to ensure reliable cold starting and clean combustion on startup. Worn glow plugs cause difficult cold-weather starting, white smoke on startup, and increased wear on starter motors.
Signs you need a replacement
- Difficult starting in cold weather
- white or blue smoke on cold start
- glow plug warning light staying on
- engine misfiring during warm-up
- increased starter motor cranking time
When to replace
Every 60,000–80,000 miles or when cold-starting problems develop. Replace all plugs as a set — a single failed plug causes uneven cylinder temperatures.
About NGK
NGK Spark Plug Co., founded in 1936 in Nagoya, Japan, is the world's largest manufacturer of spark plugs and a major producer of oxygen sensors. NGK specialises in spark plugs, glow plugs, ignition coils, and lambda sensors for petrol and diesel engines. As the OE supplier to the majority of global car manufacturers, NGK products deliver reliable ignition and precise emissions control. Trusted in Formula 1 and everyday motoring, NGK is the benchmark for ignition system quality and performance.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (4)
Glow Plug NGK 2649 — compatible car models
| Manufacturer article number (MPN) | 2649 |
|---|---|
| OE part numbers | 16851-65512 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
NGK 2649 . Connector type: M4. Current Strength [A]: 5,5 A. Fitting Depth [mm]: 19,0 mm. Glow Plug Design: 2. Overall Length [mm]: 69,0 mm. Resistor [Ohm]: 0,9 Ohm. Spanner Size: 10 mm. Thread Size: M8 x 1,0
- 1x Glow Plug
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Glow Plug compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Glow Plug fits. All fitment data is verified through TecDoc.
What specifications does this NGK Glow Plug have?
This NGK Glow Plug has the following specifications: Voltage [V]: 11,0 V; Connector type: M4; Thread Size: M8 x 1,0; Resistor [Ohm]: 0,9 Ohm; Overall Length [mm]: 69,0 mm; Spanner Size: 10 mm. Check the full specifications table above for complete details.
What OE part numbers does this Glow Plug replace?
This Glow Plug replaces OE part numbers: 16851-65512. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Glow Plug cost?
This NGK Glow Plug is available for £18.99. Glow Plug prices vary depending on brand, specifications, and vehicle compatibility. NGK parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Glow Plug?
On diesel engines: difficulty starting in cold weather, excessive white smoke from the exhaust on startup, rough running until the engine warms, the glow plug warning light staying on, or one cylinder misfiring when cold.
What tools do I need to replace a Glow Plug?
Tools needed: 10mm hex deep socket for glow plug, torque wrench (10-15 Nm), penetrating oil (apply 24 hours before removal on high-mileage engines), glow plug extraction kit (for seized plugs). Difficulty: Moderate DIY. Safety warning: Apply penetrating oil well in advance on older diesel engines -- forced removal of seized glow plugs snaps them in the cylinder head, requiring specialist extraction. Never over-torque replacements.
Can I use this part as a replacement for OE 16851-65512?
Yes, this NGK Glow Plug is a direct replacement for OE part number 16851-65512. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the NGK 2649 the same as the NGK 1009?
No, while both are Glow Plug parts, they are different products. The NGK 2649 has Voltage [V]: 11,0 V, Connector type: M4, Thread Size: M8 x 1,0. The NGK 1009 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
