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Details
| Specification | Value |
|---|---|
| Brand | LEMFÖRDER |
| Fitting Position | Front Axle |
| Length [mm] | 145 mm |
| Cone Size [mm] | 28.5 mm |
| Internal Thread [mm] | 1.25" mm |
OE/OEM numbers (6)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—201 720 01 78
- MERCEDES-BENZ—201 720 03 78
- MERCEDES-BENZ—201 720 05 78
- MERCEDES-BENZ—A 201 720 01 78
- MERCEDES-BENZ—A 201 720 03 78
- MERCEDES-BENZ—A 201 720 05 78
Where this part fits
Original-fit position for OE 2017200578. The red ring marks where this part installs on the vehicle.

About this product
When door seal performance matters, the LEMFÖRDER 11734 01 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Fitting Position: Front Axle, Length [mm]: 145 mm, Cone Size [mm]: 28, Rubber mm, Internal Thread [mm]: Steel, 25" mm, DIN/ISO: 259. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 014 072 0020, 08877, 201 720 01 78, 201 720 03 78 and 5 more. Matching these numbers confirms a like-for-like replacement with no loss of function. LEMFÖRDER 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.
About LEMFÖRDER
Lemförder, founded in 1947 in Lemförde, Germany, is a world-renowned specialist in steering and suspension technology, now operating under the ZF Group. Lemförder produces tie rod ends, ball joints, control arms, stabiliser links, and steering racks. The brand supplies original equipment to premium manufacturers including BMW, Audi, Mercedes-Benz, and Porsche. Recognised for exceptional precision and durability, Lemförder parts are the trusted choice for mechanics who demand OE-matching quality in chassis components.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (3)
Door Seal LEMFÖRDER 11734 01 — compatible car models
| Manufacturer article number (MPN) | 11734 01 |
|---|---|
| OE part numbers | 201 720 01 78, 201 720 03 78, 201 720 05 78, A 201 720 01 78, A 201 720 03 78, A 201 720 05 78 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
LEMFÖRDER 1173401 . Cone Size [mm]: 28,5 mm. DIN/ISO: 259. Fitting Position: VA. Internal Thread [mm]: 1,25" mm. Length [mm]: 145 mm. Thread Type: 0
- 1x Door Seal
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 Door Seal 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 Door Seal fits. All fitment data is verified through TecDoc.
What specifications does this LEMFÖRDER Door Seal have?
This LEMFÖRDER Door Seal has the following specifications: Fitting Position: VA; Length [mm]: 145 mm; Cone Size [mm]: 28,5 mm; Internal Thread [mm]: 1,25" mm; DIN/ISO: 259; Thread Type: 0. Check the full specifications table above for complete details.
What OE part numbers does this Door Seal replace?
This Door Seal replaces OE part numbers: 201 720 01 78, 201 720 03 78, 201 720 05 78, A 201 720 01 78, A 201 720 03 78, A 201 720 05 78. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Door Seal cost?
Door Seal prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this LEMFÖRDER Door Seal. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Door Seal?
Replace door seals when they are compressed flat, torn, have come away from the door frame, or allow wind noise and water into the cabin. A failed seal also reduces sound deadening significantly.
What tools do I need to replace a Door Seal?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Door Seal fitted by a professional mechanic.
Can I use this part as a replacement for OE 201 720 01 78?
Yes, this LEMFÖRDER Door Seal is a direct replacement for OE part number 201 720 01 78. 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.

