Skip to main content
CP247
catalyst converter WALKER 20552 — no image available

No product images available

Specs, fitment data and pricing remain accurate.
BrandWALKER
MPN20552
OE refs12
SKU0013-20552
GTIN / EAN3277490205520

Similar products

Customers also bought

Details

SpecificationValue
BrandWALKER
Categorycatalyst converter
Length [mm]955 mm
Weight [kg]4.5 kg

OE/OEM numbers (12)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 24418596. The red ring marks where this part installs on the vehicle.

PIPE,EXHAUST,FRONT,WITH CATALYST (NLS.- USE 93181904   58 54 265) — Opel  ASTRA-G ( 1998 -  2010) — G FUEL AND EXHAUST › 180.EXHAUST PIPE,SILENCER AND CATALYTIC CONVERTER (CONTD.)
Opel ASTRA-G ( 1998 - 2010) · G FUEL AND EXHAUST › 180.EXHAUST PIPE,SILENCER AND CATALYTIC CONVERTER (CONTD.)Position 1

About this product

Sourced from WALKER, this catalyst converter (20552) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Length [mm]: 955 mm, Weight [kg]: Copper, Rubber kg, Code Letter: 92, Supplementary Article/Info 2: 515, Guarantee: Cast Iron — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit OPEL, VAUXHALL models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 04.3234, 05.016, 08.020.62, 08.104.65 and 46 more. Matching these numbers confirms a like-for-like replacement with no loss of function. WALKER 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

About WALKER

Walker, part of the Tenneco group, is a well-established manufacturer of exhaust system components with decades of engineering experience. Walker specialises in catalytic converters, diesel particulate filters, exhaust pipes, silencers, and flexible connectors. As a supplier meeting strict European emission regulations, Walker products are designed for precise fitment and optimal exhaust gas treatment. With extensive vehicle coverage and products engineered to restore factory exhaust performance, Walker is a dependable choice for exhaust system repairs across all major European vehicle brands.

Suitable cars

Equivalent products (44)

Show all 44 OE numbers
AS21703D
AS21753D
ASMET05.016
ASSO34.0024
ASSO34.6046
BM CATALYSTSBM80108
BM CATALYSTSBM80108H
BOSAL099-051£185.99
BOSAL282-011
EBERSPÄCHER08.020.62
EBERSPÄCHER08.104.65
EECVX6088
EECVX6088T
EECVX8047
EECVX8047T
EECVX8047TBP
ERNST751919
ERNST752190
FA1MD000104
FABRISCAPEOP21703D/C
FaureciaFS40517K
FENNOP429DCAT
FONOS20552
GT ExhaustsG321220
GT ExhaustsG380018
HJS90 14 5827
HJS96 14 3008
IMASAF53.34.33
KLARIUS321220
KLARIUS321711
KLARIUS321837
KLARIUS380018
MAGNAFLOW75831D
MAGNAFLOW85867D
MAGNAFLOWK299
MTS04.3234
QUINTON HAZELL321220
QUINTON HAZELL321711
QUINTON HAZELL321837
QUINTON HAZELL34.0024
QUINTON HAZELL380018
SIGAM40184
VENEPORTEOP40517K
WALKER20552£297.99

catalyst converter WALKER 20552compatible car models

Car modelsOPEL: ASTRA G Convertible (T98), ASTRA G Coupe (T98), ASTRA G Estate (T98), ASTRA G Estate Van (F70), ASTRA G Hatchback (T98), ASTRA G Saloon (T98), ZAFIRA A MPV (T98); VAUXHALL: ASTRA Mk IV (G) Estate (T98), ASTRA Mk IV (G) Hatchback (T98), ASTRA Mk IV (G) Saloon (T98), ASTRAVAN Mk IV (G) Estate Van (T98), ZAFIRA A (T98)
Engines2.2 DTI (F67); 2.2 DTI (F07); 2.0 DI (F35); 2.0 DI (F70); 2.0 DI (F08, F48); 2.0 DI (F69); 2.0 DI 16V (F75); 2.0 DI; 2.0 DI (F48); 2.0 DI 16V
Year of manufacture1993-2009
Manufacturer article number (MPN)20552
OE part numbers24418596, 24423928, 24456338, 5854184, 5854265, 5854408, 854185, 854454, 9128302, 93181904, R1620079, R1620083
Compatibility check

Loading vehicle data…

Please wait while we load vehicle compatibility information.
Description and what's included

WALKER 20552 catalyst converter. Code Letter: 92. Guarantee: 3. Length [mm]: 955 mm. Supplementary Article/Info 2: 515. Weight [kg]: 4,5 kg

What's included:
  • 1x catalyst converter
Shipping, returns, warranty

Free UK delivery on orders over £99.00. Express and standard shipping available.

  • Standard delivery: 2-5 business days
  • Express delivery: 1-2 business days
  • 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?

This catalyst converter fits OPEL, VAUXHALL vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.

What specifications does this WALKER catalyst converter have?

This WALKER catalyst converter has the following specifications: Length [mm]: 955 mm; Weight [kg]: 4,5 kg; Code Letter: 92; Supplementary Article/Info 2: 515; Guarantee: 3. 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: 24418596, 24423928, 24456338, 5854184, 5854265, 5854408, 854185, 854454 and 4 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a catalyst converter cost?

This WALKER catalyst converter is available for £297.99. Catalyst converter prices vary depending on brand, specifications, and vehicle compatibility. WALKER 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 24418596?

Yes, this WALKER catalyst converter is a direct replacement for OE part number 24418596. 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 WALKER 20552 the same as the WALKER 15870?

No, while both are catalyst converter parts, they are different products. The WALKER 20552 has Length [mm]: 955 mm, Weight [kg]: 4,5 kg, Code Letter: 92. The WALKER 15870 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