DELPHI Lambda zonde ES21273-12B1

Compatible with SEAT LEON ST (5F8) , AUDI A3 Limousine (8VS, 8VM) , AUDI A3 (8V1, 8VK) Show more info
High-quality Lambda zonde from DELPHI, part number ES21273-12B1. Ensures optimal engine performance and fuel efficiency.
37.86 EUR
inc. VAT 21%
In stock 4
Delivery 1 day (15.05.2026)
PN ES21273-12B1
Make DELPHI
EAN 5012759577486

This Lambda zonde from DELPHI, identified by part code ES21273-12B1, is designed to provide accurate exhaust gas oxygen content readings. Proper functioning of the Lambda zonde is crucial for the engine control unit (ECU) to adjust the air-fuel mixture, leading to improved combustion efficiency and reduced emissions. Crafted with durable materials, this component is built to withstand the harsh conditions within the exhaust system. Its precise calibration ensures reliable data transmission to the ECU, contributing to smoother engine operation and preventing potential performance issues. Replacing a faulty Lambda zonde can resolve problems such as poor fuel economy, rough idling, and check engine lights. DELPHI is a trusted name in automotive components, known for its commitment to quality and innovation. This Lambda zonde upholds that reputation, offering a dependable solution for your vehicle's needs. It is engineered for a precise fit and straightforward installation, minimizing downtime.

  • Brand: DELPHI
  • Part Code: ES21273-12B1
  • Type: Lambda zonde
  • Ensures accurate air-fuel mixture control
  • Improves fuel efficiency
  • Reduces harmful emissions
  • Durable construction for longevity
  • Designed for optimal engine performance
Cable length [mm]
801
Oxygen sensor
Planar type lambda sensor
Oxygen sensor
with heating
  • SEAT
    • LEON ST (5F8)
      • 1.8 TSI (132kW/180PS)
      • 1.8 TSI 4Drive (132kW/180PS)
    • LEON (5F1)
      • 1.8 TSI (132kW/180PS)
    • LEON SC (5F5)
      • 1.8 TSI (132kW/180PS)
  • AUDI
    • A3 Limousine (8VS, 8VM)
      • S3 quattro (221kW/300PS)
      • 1.8 TFSI quattro (132kW/180PS)
      • S3 quattro (206kW/280PS)
      • 1.8 TFSI (132kW/180PS)
    • A3 (8V1, 8VK)
      • 1.8 TFSI (132kW/180PS)
      • 1.8 TFSI quattro (132kW/180PS)
      • S3 quattro (206kW/280PS)
      • S3 quattro (221kW/300PS)
    • A3 Sportback (8VA, 8VF)
      • 1.8 TFSI (132kW/180PS)
      • S3 quattro (221kW/300PS)
      • 1.8 TFSI quattro (132kW/180PS)
      • S3 quattro (206kW/280PS)
    • A3 Kabriolets (8V7, 8VE)
      • 1.8 TFSI (132kW/180PS)
    • TT (FV3, FVP)
      • 2.0 TFSI (169kW/230PS)
      • 2.0 TFSI quattro (169kW/230PS)
    • TT Roadster (FV9, FVR)
      • 2.0 TFSI (169kW/230PS)
      • 2.0 TFSI quattro (169kW/230PS)
  • SKODA
    • OCTAVIA III (5E3, NL3, NR3)
      • 1.8 TSI (132kW/180PS)
      • 2.0 TSI RS (162kW/220PS)
      • 2.0 TSI RS (169kW/230PS)
    • OCTAVIA III Combi (5E5, 5E6)
      • 1.8 TSI (132kW/180PS)
      • 1.8 TSI 4x4 (132kW/180PS)
      • 2.0 TSI RS (162kW/220PS)
      • 2.0 TSI RS (169kW/230PS)
  • VW
    • GOLF VII (5G1, BQ1, BE1, BE2)
      • 2.0 GTI (162kW/220PS)
      • 2.0 GTI (169kW/230PS)
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