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Details
| Specification | Value |
|---|---|
| Brand | KLARIUS |
| Category | catalyst converter |
| Length [mm] | 990 mm |
| Width [mm] | 0 mm |
| Height [mm] | 0 mm |
| Weight [kg] | 7.1 kg |
OE numbers (1)
Search by this OE number to find compatible parts
- RENAULT / RENAULT KOREA—7700821143
What's in the kit
This kit ships with 4 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | SUG7AA | Gasket, exhaust pipe
| 1 |
| 2 | 410371 | Gasket, exhaust pipe
| 1 |
| 3 | 430193 | Pipe Connector, exhaust system
| 1 |
| 4 | SYA10AD | Clamping Piece, exhaust system
| 1 |
About this product
When catalyst converter performance matters, the KLARIUS 311031 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Length [mm]: 990 mm, Width [mm]: 0 mm, Height [mm]: 0 mm, Weight [kg]: Ceramic, Steel kg, Emission Standard: Aluminium. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 04.3709, 099-675, 20252, 30301 and 5 more. Matching these numbers confirms a like-for-like replacement with no loss of function. KLARIUS 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.
Suitable cars
Fitment not confirmed for this part
We could not confirm which vehicles this part fits — check before buying.Equivalent products (8)
catalyst converter KLARIUS 311031 — compatible car models
| Manufacturer article number (MPN) | 311031 |
|---|---|
| OE part numbers | 7700821143 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
KLARIUS 311031 catalyst converter. Emission Standard: 2. Height [mm]: 0 mm. Length [mm]: 990 mm. Supplementary Article/Info 2: 515. Weight [kg]: 7,1 kg. Width [mm]: 0 mm
- 1x catalyst converter
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 business days
- Order before 5pm — 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 catalyst converter 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 catalyst converter fits. All fitment data is verified through TecDoc.
What specifications does this KLARIUS catalyst converter have?
This KLARIUS catalyst converter has the following specifications: Length [mm]: 990 mm; Width [mm]: 0 mm; Height [mm]: 0 mm; Weight [kg]: 7,1 kg; Emission Standard: 2; Supplementary Article/Info 2: 515. Check the full specifications table above for complete details.
What OE part numbers does this catalyst converter replace?
This catalyst converter replaces OE part numbers: 7700821143. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a catalyst converter cost?
Catalyst converter prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this KLARIUS catalyst converter. All parts come with our 14-day money-back guarantee.
How do I know when to replace my catalyst converter?
Regular inspection of your catalyst converter 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 catalyst converter?
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 catalyst converter fitted by a professional mechanic.
Can I use this part as a replacement for OE 7700821143?
Yes, this KLARIUS catalyst converter is a direct replacement for OE part number 7700821143. 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.
