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Details
| Specification | Value |
|---|---|
| Brand | ELRING |
| MPN | 777.404 |
| Thickness [mm] | 5 mm |
| Inner Diameter [mm] | 126 mm |
| Outer Diameter [mm] | 136 mm |
OE numbers (2)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—000 184 31 80
- MERCEDES-BENZ—A 000 184 31 80
About this product
The ELRING Seal Ring (777.404) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Thickness [mm]: Rubber mm, Shape: Carbon, Material: 27, Inner Diameter [mm]: 126 mm, Outer Diameter [mm]: 136 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: 000 184 31 80, 1 450 210 013, 40-76232-00, 50-320683-00 and 2 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ELRING 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
About ELRING
Elring, founded in 1879 in Dettingen an der Erms, Germany, is a globally recognised specialist in engine sealing technology and gasket manufacturing. Elring specialises in cylinder head gaskets, valve cover gaskets, oil pan gaskets, exhaust manifold gaskets, and complete gasket sets. As an OE supplier to Mercedes-Benz, BMW, Volkswagen, and Audi, Elring gaskets deliver factory-precision sealing. With 140+ years of sealing innovation and state-of-the-art manufacturing, Elring is the professional's choice for leak-free engine assembly and repair.
Suitable cars
Fitment not confirmed for this part
We could not confirm which vehicles this part fits — check before buying.Equivalent products (4)
Seal Ring ELRING 777.404 — compatible car models
| Manufacturer article number (MPN) | 777.404 |
|---|---|
| OE part numbers | 000 184 31 80, A 000 184 31 80 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
ELRING 777.404 . Goods tariff number: 4016935050. Inner Diameter [mm]: 126 mm. Material: 27. Outer Diameter [mm]: 136 mm. Shape: 8. Thickness [mm]: 5 mm
- 1x Seal Ring
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 business days
- Order before 3pm — ships the next working day
- 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 Seal Ring 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 Seal Ring fits. All fitment data is verified through TecDoc.
What specifications does this ELRING Seal Ring have?
This ELRING Seal Ring has the following specifications: Thickness [mm]: 5 mm; Shape: 8; Material: 27; Inner Diameter [mm]: 126 mm; Outer Diameter [mm]: 136 mm; Goods tariff number: 4016935050. Check the full specifications table above for complete details.
What OE part numbers does this Seal Ring replace?
This Seal Ring replaces OE part numbers: 000 184 31 80, A 000 184 31 80. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Seal Ring cost?
This ELRING Seal Ring is available for £4.99. Seal Ring prices vary depending on brand, specifications, and vehicle compatibility. ELRING parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Seal Ring?
Regular inspection of your Seal Ring is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Seal Ring?
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 Seal Ring fitted by a professional mechanic.
Can I use this part as a replacement for OE 000 184 31 80?
Yes, this ELRING Seal Ring is a direct replacement for OE part number 000 184 31 80. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
