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Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump
Secondary Air Pump

PIERBURG Secondary Air Pump for Audi A8 / S8 (2000-2003)

PIERBURG
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SKU 078906601F
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$414.47 - $414.47
$414.47
$414.47 - $414.47
$414.47
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The secondary air injection pump injects fresh air into the exhaust stream to further burn off exhaust gas, aiding catalytic converter warm-up. This Pierburg pump is a direct replacement for the original part, restoring emissions performance for Audi A8 and S8 models with the 4.2L V8 engine from 2000 to 2003.

Key Features & Benefits

  • OEM Replacement: Direct fit for Audi A8 and S8 with 4.2L V8 (2000-2003).
  • Restores Performance: Replace a failing pump to improve fuel efficiency and reduce emissions.
  • Pierburg Quality: Manufactured by a trusted OE supplier.

Vehicle Fitment

Make Model Years Engine
Audi S8 2001–2003 4.2V8
Audi A8 Quattro 2000–2003 4.2V8

Technical Specifications

Part Number 721851320

Installation Notes

Professional installation recommended; simple bolt-on replacement.

About PIERBURG

Pierburg is a leading OEM manufacturer of emission control components.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 2 applications
D2 A8
Make Model Engine Years
Audi A8 Quattro 4.2V8 2000–2003
D2 S8
Make Model Engine Years
Audi S8 4.2V8 2001–2003
Fits 2 vehicle applications Check vehicle fitment before ordering View fitment

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