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BMW N20 Three-Way Catalytic Converter | High Efficiency | Emission Compliance | Best Value
This direct-fit three-way catalytic converter is tailored for BMW 320 and 520 models with the N20 engine. Engineered with premium ceramic substrates and stainless OEM-spec housing, it ensures reliable CO/HC/NOx conversion, extended durability, and full compliance with Euro V regulations.
OEM-Grade Construction
Built with a stainless steel body, ribbed heat shield, and 400 CPSI ceramic honeycomb core for consistent high-temperature performance.
Efficient Pollutant Reduction
Effectively converts harmful emissions – CO → CO₂, HC → H₂O, NOx → N₂ – with conversion rates exceeding 90% under optimal lambda control.
Precision Fit for N20 Engine
Designed specifically for BMW N20 platforms to eliminate CEL errors, improve exhaust flow, and ensure seamless sensor compatibility.
Certified to Meet Global Standards
Tested for Euro 2–5 compliance, OBD-ready, and suitable for international markets including Southeast Asia.
| Parameter | Detail |
| Model Number | BMW 320/520 N20 |
| Vehicle Compatibility | BMW 320i, 520i (N20 engine) |
| Body Material | T490L Steel with Ribbed Heat Shield |
| Core Material | Ceramic (Honeycomb Substrate) 400 CPSI |
| Emission Standard | OBD/Euro 2/Euro3/Euro4/Euro5 |
| Dimensions | 54 × 16 × 16 cm |
| Weight | 3.7 kg |
| Shape | Square / Round / Customized |
| Color | Grey / White (General) |
| Fit Type | In-line Model |
| Application | Automotive Exhaust System |
| Function | Reduces CO/HC/NOx Emissions |
| Inside Material | Ceramic Substrate with Insulating Mat |
| Engine | Petrol or Diesel |
| Condition | 100% Brand-New |
| Package | Foam + Cardboard + Wooden Case |
| Packaging Size | 120 × 80 × 100 cm |
| Production Capacity | 6,000 units/month |
| Origin | Dezhou, Shandong, China |
| Certifications | ISO9001, IATF16949, CE, RoHS |
| Delivery Time | 3-25 Days (Based on Order Qty) |
| Shipping | FOB Qingdao/Tianjin/Global Shipping |
| Warranty | 1 year / 50,000km |
| HS Code | 8421320090 |
1. Emission Test Failures
Fixes check-engine codes (P0420/P0430), restores emissions performance for Euro zone compliance.
2. Aging OEM Converters
Replaces worn-out factory converters – ensures consistent combustion efficiency and power delivery.
3. Installation Headaches
Direct-fit design eliminates need for welding or modification – saves labor time and cost.
“This converter’s substrate density and heat resistance are spot-on for BMW turbo engines like the N20. No tuning needed post-install.”
– Eric C., BMW Service Manager (Germany)
“It meets Euro V without the pressure drop we see in cheaper replacements – fuel economy stays intact.”
– Dr. Alan F., Automotive Emissions Consultant
Perfect For:
BMW 320i/520i N20 owners facing DTCs
Shops serving Euro V retrofit demand
Distributors needing high-volume, stable-quality supply
Export channels focused on Southeast Asia, Latin America
✅ ISO 9001:2015 Production Line
✅ Magnetic Leak Test – No bypass leakage
✅ Ceramic Core Durability Test – 800°C sustained
✅ X-Ray Weld Integrity Inspection
✅ OBD-II Sensor Compatibility Verified
1. Engineered Performance
90% emissions reduction | Maintains flow | Reduces engine stress
2. Easy Installation
No ECU tuning needed | Bolt-on fit | Sensor ports pre-aligned
3. Built for Long-Term Use
Anti-corrosion shell | High heat resistance | Premium ceramic substrate
Case: BMW 320i N20 (Thailand, 2022)
Issue: Failed emissions test due to aged OE converter
Solution: Replaced with YUEYANG N20 Euro V TWC
Result: Passed test, fuel efficiency improved by 4.5%
OEM-spec BMW catalytic converters
Bulk orders and customization
Technical support and installation guidance
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