1999 Impreza Oxygen Sensor

Denso Aftermarket Products
At DENSO they have taken everything we have learned as an OE manufacturer and applied it to our aftermarket product lines. Every component that leaves our factories has been designed with precision, manufactured to the strictest OE standards and subjected to rigorous safety and performance tests.

DENSO factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for DENSO. A recipient of the prestigious Deming Award for quality in 1961, we've spent over five decades perfecting our technology and processes, a claim that few automotive manufacturers can make.

For decades, DENSO has set and redefined the automotive technology standard. As one of the world's largest automotive component suppliers, OEMs rely on us to help keep them on the leading edge of technology. Our components can be found on thousands of vehicle models for which we produce over hundreds of thousands of unique parts.

In 1972, Denso patented the revolutionary U-Grove spark plug design and the early 1980s we became the first to mass-produce the double platinum spark plug. In the late 1990s, we introduced the ultimate in plug design and performance, the DENSO Iridium spark plug. Originally designed to meet and exceed OE Standards, these plugs were only the beginning of DENSO's expansion into the aftermarket. Following up on the success of the spark plugs, we introduced our First Time Fit® brand of aftermarket components including compressors, starters, alternators, oxygen sensors, fuel pumps, oil and air filters, wipers and more.

Denso Aftermarket Products
At DENSO they have taken everything we have learned as an OE manufacturer and applied it to our aftermarket product lines. Every component that leaves our factories has been designed with precision, manufactured to the strictest OE standards and subjected to rigorous safety and performance tests.

DENSO factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for DENSO. A recipient of the prestigious Deming Award for quality in 1961, we've spent over five decades perfecting our technology and processes, a claim that few automotive manufacturers can make.

For decades, DENSO has set and redefined the automotive technology standard. As one of the world's largest automotive component suppliers, OEMs rely on us to help keep them on the leading edge of technology. Our components can be found on thousands of vehicle models for which we produce over hundreds of thousands of unique parts.

In 1972, Denso patented the revolutionary U-Grove spark plug design and the early 1980s we became the first to mass-produce the double platinum spark plug. In the late 1990s, we introduced the ultimate in plug design and performance, the DENSO Iridium spark plug. Originally designed to meet and exceed OE Standards, these plugs were only the beginning of DENSO's expansion into the aftermarket. Following up on the success of the spark plugs, we introduced our First Time Fit® brand of aftermarket components including compressors, starters, alternators, oxygen sensors, fuel pumps, oil and air filters, wipers and more.

Denso Aftermarket Products
At DENSO they have taken everything we have learned as an OE manufacturer and applied it to our aftermarket product lines. Every component that leaves our factories has been designed with precision, manufactured to the strictest OE standards and subjected to rigorous safety and performance tests.

DENSO factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for DENSO. A recipient of the prestigious Deming Award for quality in 1961, we've spent over five decades perfecting our technology and processes, a claim that few automotive manufacturers can make.

For decades, DENSO has set and redefined the automotive technology standard. As one of the world's largest automotive component suppliers, OEMs rely on us to help keep them on the leading edge of technology. Our components can be found on thousands of vehicle models for which we produce over hundreds of thousands of unique parts.

In 1972, Denso patented the revolutionary U-Grove spark plug design and the early 1980s we became the first to mass-produce the double platinum spark plug. In the late 1990s, we introduced the ultimate in plug design and performance, the DENSO Iridium spark plug. Originally designed to meet and exceed OE Standards, these plugs were only the beginning of DENSO's expansion into the aftermarket. Following up on the success of the spark plugs, we introduced our First Time Fit® brand of aftermarket components including compressors, starters, alternators, oxygen sensors, fuel pumps, oil and air filters, wipers and more.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.

Bosch Parts USA - Robert Bosch GmbH is one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations.

Spare parts from Bosch impress by their quality, reliability and innovative technology. They only go into serial production once they meet our very stringent requirements. With state of the art lights and brake systems, batteries with extremely long lives, wiper blades, starters and air filters that let six times less pollutants into the interior of your car, Bosch provides high quality spare parts that make driving safer, more comfortable and more eco-friendly. Naturally, Bosch spare parts are available for almost all vehicle types in ex-works quality. That means: Spare parts from Bosch have the same first class quality as those fitted in your car by the manufacturer.