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Mercedes S420 Catalytic Converters

Select your engine size to see the parts catalogued for your Mercedes S420.

Look up the parts for your vehicle by reg plate

Mercedes S420 4.2

  • BM90655 — Petrol Cat Catalytic Converter for Mercedes S420 4.2 – BM90655
    2-year warranty Fitting kit included £160.83 ex VAT (£192.99 inc VAT)
    (W140) RHD only; V8 Saloon Limo (left side)
  • BM90656 — Petrol Cat Catalytic Converter for Mercedes S420 4.2 – BM90656
    2-year warranty Fitting kit included £160.83 ex VAT (£192.99 inc VAT)
    (W140) RHD only; V8 Saloon Limo (Right Side)
  • BM91428 — Petrol Cat Catalytic Converter for Mercedes S420 4.2 – BM91428
    2-year warranty £180.83 ex VAT (£216.99 inc VAT)
    (W140) V8 Saloon Limo (RHD only)
  • BM91429 — Petrol Cat Catalytic Converter for Mercedes S420 4.2 – BM91429
    2-year warranty £359.99 ex VAT (£431.99 inc VAT)
    Listed for left-hand-drive vehicles only. Most UK-registered vehicles are right-hand drive: check yours before you buy.(W140) V8 LHD only Saloon Limo
  • BM91623 — Petrol Cat Catalytic Converter for Mercedes S420 4.2 – BM91623
    2-year warranty £254.16 ex VAT (£304.99 inc VAT)
    Listed for left-hand-drive vehicles only. Most UK-registered vehicles are right-hand drive: check yours before you buy.(W140) V8 Saloon Limo LHD only (left side)
  • BM91624 — Petrol Cat Catalytic Converter for Mercedes S420 4.2 – BM91624
    2-year warranty £254.16 ex VAT (£304.99 inc VAT)
    Listed for left-hand-drive vehicles only. Most UK-registered vehicles are right-hand drive: check yours before you buy.(W140) V8 Saloon Limo LHD only (right side)

More about the Mercedes S420 4.2 →

About the Mercedes S420

We list 6 parts for the Mercedes S420, spanning petrol models built between 1993 and 1999 across its 4.2-litre engine. Coverage includes catalytic converters, and every part is matched against original fitment data.