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Details
| Specification | Value |
|---|---|
| Brand | TOPRAN |
| Thread Size | M 12 |
| Glow Plug Design | SK |
| Glow Plug Design | NG |
| Thread Pitch [mm] | 1.25 mm |
OE/OEM numbers (4)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—001 159 20 01
- MERCEDES-BENZ—001 159 21 01
- MERCEDES-BENZ—A001 159 20 01
- MERCEDES-BENZ—A001 159 21 01
Where this part fits
Original-fit position for OE 0011592101. The red ring marks where this part installs on the vehicle.
About this product
TOPRAN Glow Plug (400 448) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Thread Size: M 12, Glow Plug Design: SK, Glow Plug Design: CNG, Supplementary Article/Info 2: 846, Thread Pitch [mm]: Steel, 25 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with MERCEDES-BENZ vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 001 159 20 01, 001 159 21 01, 01-00-020, 010.1562 and 102 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN 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 TOPRAN
TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.
Suitable cars
Equivalent products (111)
Show all 111 OE numbers
Glow Plug TOPRAN 400 448 — compatible car models
| Car models | MERCEDES-BENZ: C-CLASS T-Model (S202), C-CLASS (W202), E-CLASS T-Model (S210), E-CLASS (W210), S-CLASS (W140) |
|---|---|
| Engines | C 200 T D (202.180); C 200 D (202.122); E 250 T D (210.210); E 200 D (210.003); S 300 Turbo-D (140.135) |
| Year of manufacture | 1991-2003 |
| Manufacturer article number (MPN) | 400 448 |
| OE part numbers | 001 159 20 01, 001 159 21 01, A001 159 20 01, A001 159 21 01 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TOPRAN 400448 . Glow Plug Design: NG. Glow Plug Design: SK. Supplementary Article/Info 2: 846. Thread Pitch [mm]: 1,25 mm. Thread Size: M 12
- 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?
This Glow Plug fits MERCEDES-BENZ vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this TOPRAN Glow Plug have?
This TOPRAN Glow Plug has the following specifications: Thread Size: M 12; Glow Plug Design: SK; Glow Plug Design: NG; Supplementary Article/Info 2: 846; Thread Pitch [mm]: 1,25 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: 001 159 20 01, 001 159 21 01, A001 159 20 01, A001 159 21 01. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Glow Plug cost?
This TOPRAN Glow Plug is available for £7.99. Glow Plug prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN 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 001 159 20 01?
Yes, this TOPRAN Glow Plug is a direct replacement for OE part number 001 159 20 01. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
