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NOx Sensor NOx Catalytic Converter TOPRAN 121 557
Nox Sensor Nox Catalytic Converter TOPRAN 121 557. Fitting position: 178. Fits 2 car models (VW), 2015–2020. Replaces 3 OE numbers.

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Specification. From the manufacturer's data.
- Brand
- TOPRAN
- Thread Size
- M 20
- Cable Length [mm]
- 910 mm
- Number of pins
- 5 -pin connector
- Rated Voltage [V]
- 12 V
- Thread Pitch [mm]
- 1.5 mm
- Sensor Length [mm]
- 99 mm
- Category
- Nox Sensor Nox Catalytic Converter
- MPN
- 121 557
- SKU
- 0301-121 557
- What's included
- 1x Nox Sensor Nox Catalytic Converter
OE numbers. The originals this part replaces.
Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.
Where this part fits
Original-fit position for OE 04L907807AT. The red ring marks where this part installs on the vehicle.

Equivalent products. They fit in the same place.
6 available · 37 numbers In stock from £179.99 to £364.99.
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All 37 cross-reference numbers
Numbers other makers give for this part. They are aftermarket numbers, not the vehicle maker's OE numbers; a linked number is one we sell.
- AMPRO A1027807EB
- AS-PL NOX9307
- ATOMTEC NOX1A010
- ATOMTEC NOX1A058
- Auto Elect 11850140
- AUTOTEAM L23308
- BOGAP A6119525
- BOGAP A6130117
- BOGAP BGPA1027807EB
- CASCO CSN73B25AS
- CASCO CSN73B25GS
- CSV electronic parts CNO3259
- DELPHI ANS1010-12B1
- DIESELNOX DN8L160014EB
- DPAN A3C0163120077
- ESEN SKV 71SKV092
- FISPA 82.3308
- FLAMAR SNF630B37HQ
- FLAMAR SNF630B37VW
- GEBE 9 3611 1
- HELLA 6PN 358 307-031
- HERTH+BUSS ELPARTS 70680007
- HJS 92 09 7064
- INTERMOTOR 69025
- LEMARK LNX028
- LUCAS LSN026
- MOTAQUIP LVNX004
- REAL 8027652BBN
- REAL 8027652BOE
- SANDO SSN73B25.0
- SANDO SSN73B25.1
- SIDAT 82.3308
- TOPRAN 04L907807AT
- TOPRAN 04L907807EB
- TOPRAN 04L907807N
- VEMO V10-72-0327
- Vitesco Technologies A3C0163120077
Compatible cars. VW, 2 models.
Matched from the manufacturer's data. Production years 2015–2020.
| Model | Engines | Years |
|---|---|---|
| VW2 models | ||
| VW CADDY IV Box Body/MPV (SAA, SAH) | 2.0 TDI, 2.0 TDI 4motion | 2015–2020 |
| VW CADDY IV MPV (SAB, SAJ) | 2.0 TDI, 2.0 TDI 4motion | 2015–2020 |
Always verify compatibility with your vehicle before ordering.
More about this part. Related categories and similar parts.
TOPRAN
Related categories
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Common OE numbers for this part
Common original equipment numbers linked to replacement-part pages.
Delivery and returns. No small print.
£5.99
Standard delivery
Delivery estimates depend on current stock availability.
£50.00
Free delivery
Orders from £50.00
14 days
Returns
Money back if the part does not fit.
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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms
We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country
Delivery times to EU countries (working days)
Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10