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Details
| Specification | Value |
|---|---|
| Brand | DINEX |
| MPN | 8ai001-rx |
| Category | catalyst converter |
| Length [mm] | 326 mm |
| Width [mm] | 326 mm |
| Height [mm] | 300 mm |
| Outer Diameter 1 [mm] | 326 mm |
| Inner Diameter 1 [mm] | 278.7 mm |
| Net weight [kg] | 11.83 kg |
OE numbers (14)
Search by this OE number to find compatible parts
- VOLVO—21750157
- VOLVO—21794709
- VOLVO—21922979
- VOLVO—23037748
- RENAULT / RENAULT KOREA / RENAULT TRUCKS—7421750157
- RENAULT / RENAULT KOREA—7421794709
- RENAULT TRUCKS—7421922964
- RENAULT / RENAULT KOREA—7423138863
- RENAULT / RENAULT KOREA / RENAULT TRUCKS—7485013250
- RENAULT TRUCKS—7485013517
- VOLVO—85013698
- VOLVO—85020453
Where this part fits
Original-fit position for OE 85013698.
About this product
Sourced from DINEX, this catalyst converter (8AI001-RX) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Length [mm]: 326 mm, Width [mm]: 326 mm, Height [mm]: 300 mm, Material: Synthetic, Emission Standard: 21 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 21750157, 21794709, 21922979, 23037748 and 10 more. Matching these numbers confirms a like-for-like replacement with no loss of function. DINEX 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.No equivalent parts found.
catalyst converter DINEX 8AI001-RX — compatible car models
| Manufacturer article number (MPN) | 8AI001-RX |
|---|---|
| OE part numbers | 21750157, 21794709, 21922979, 23037748, 7421750157, 7421794709, 7421922964, 7423138863, 7485013250, 7485013517, 85013698, 85020453, 85022127, 85022222 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
DINEX 8ai001-rx catalyst converter. Emission Standard: 21. Height [mm]: 300 mm. Inner Diameter 1 [mm]: 278,7 mm. Length [mm]: 326 mm. Material: 19. Net weight [kg]: 11,83 kg. Outer Diameter 1 [mm]: 326 mm. Width [mm]: 326 mm
- 1x catalyst converter
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 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 DINEX catalyst converter have?
This DINEX catalyst converter has the following specifications: Length [mm]: 326 mm; Width [mm]: 326 mm; Height [mm]: 300 mm; Material: 19; Emission Standard: 21; Outer Diameter 1 [mm]: 326 mm. 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: 21750157, 21794709, 21922979, 23037748, 7421750157, 7421794709, 7421922964, 7423138863 and 6 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a catalyst converter cost?
This DINEX catalyst converter is available for £1731.99. Catalyst converter prices vary depending on brand, specifications, and vehicle compatibility. DINEX parts offer a balance of quality and value, backed by 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 21750157?
Yes, this DINEX catalyst converter is a direct replacement for OE part number 21750157. 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 DINEX 8AI001-RX the same as the DINEX 2AI003-RX?
No, while both are catalyst converter parts, they are different products. The DINEX 8AI001-RX has Length [mm]: 326 mm, Width [mm]: 326 mm, Height [mm]: 300 mm. The DINEX 2AI003-RX 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.
