Bosch 17025 Premium Wideband A/F Oxygen (O2) Sensors are designed for use with aftermarket high performance wideband kits. Wideband/air-fuel sensors perform the same function as a regular O2 sensor, but they precisely measure the amount oxygen in the exhaust rather than just switching between rich (too much fuel, not enough oxygen) and lean (too much oxygen, not enough fuel). Our wideband sensors use a more sophisticated sensing element that provides a signal that is proportional to the amount of oxygen in the exhaust. Engineered and manufactured with a robust sensor design that increases sensor longevity. 'True Direct-fit' OE connectors and harness, plus threads pre-coated with anti-seize compound right out of the box, make installation easy. Seared protection tube due to 100% functional quality test. Fits Most 4.9 LSU Wideband Controller Gauges ，Replaces part numbers:17025、0258017025 、Bosch 17025 Compatible vehicle: 05 BUICK CENTURY V6 (3.1L) 05-07 BUICK LACROSSE V6 (3.8L) 06-08 BUICK LUCERNE V6 (3.8L) 04-05 BUICK PARK AVENUE LESABRE V6 (3.8L) 04 BUICK RAINIER/REGAL V8 (5.3L) 05-07 BUICK TERRAZA RENDEZVOUS V6 (3.5L) 00-02 CHEVY ASTRO V6 (4.3L) 05-07 CHEVY CORVETTE V8 (6.0L) 06-07 CHEVY MALIBU V6 (3.9L) 05-07 CHEVY EQUINOX V6 (3.4L) 04-07 CHEVY IMPALA V6 (3.4L) 04-07 CHEVY MONTE CARLO V6 (3.8L) 03-04 CHEVY TRAILBLAZER 5.3L V8 05-07 CHEVY UPLANDER V6 (3.5L) 05 CHEVROLET VENTURE V6 (3.4L) 03-04 GMC ENVOY All 00-02 GMC SAFARI V6 (4.3L) 03-04 ISUZU ASCENDER V8 (5.3L) 07 SATURN AURA V6 (3.5L) 05-07 SATURN RELAY V6 (3.5L) 00-02 OLDSMOBILE INTRIGUE V6 (3.5L) 01-03 OLDSMOBILE AURORA V6 (3.5L) 05 PONTIAC AZTEK V6 (3.4L) 04-05 PONTIAC BONNEVILLE V6 (3.8L) 04-07 PONTIAC GRAND PRIX V6 (3.8L) 05-07 PONTIACTORRENT  MONTANA V6 (3.4L) 06-07 PONTIAC G6 V6 (3.9L)
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