I have a 2005 ford five hundred..i bought bosch 15716, 15717 & 15718.. what is upstream & downstream?

they all interchangeable the difference its the wire length. you can use 15716 and 15717 for upstream and 15717 and 15718 for downstream .

will this fit 2004 Acura RSX upstream?

If it's a manual, and upstream (before the catalytic converter) you want a Bosch 13860 and if it's an automatic it's 13683

Bought one in march and now it dont work why is that

To get this sensor warrantied please contact our returns, and claims department through the Amazon messaging system.

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Bosch 15717 Premium Original Equipment Oxygen Sensor - Compatible with Select 1989-16 Ford, Jaguar, Lincoln, Mazda, Mercury

Bosch 15717 Premium Original Equipment Oxygen Sensor - Compatible with Select 1989-16 Ford, Jaguar, Lincoln, Mazda, Mercury

Product ID: 1911513

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Details

Brand
Bosch
Material
Stainless
Item Weight
4 ounces
Style
Oxygen Sensor
Maximum Supply Voltage
12 Volts

🔌True direct-fit OE connectors & pre-coated threads

⏱️Fast-acting heater reaches operating temp in 5s

⚙️Double laser-welded stainless steel body

Description

🚗 Upgrade your ride’s brain with Bosch precision – because every second counts!

LIGHTNING FAST WARM UP - Heater activates within seconds, optimizing sensor accuracy and fuel efficiency instantly.
PLUG PLAY INSTALLATION - Direct-fit OE connectors and anti-seize threads make upgrades hassle-free and quick.
DECADES OF PROVEN INNOVATION - Bosch’s oxygen sensor tech perfected since the 1960s for unmatched reliability.
RUGGED STAINLESS STEEL ARMOR - Exclusive double laser-welded body fully sealed against exhaust damage for extended sensor life.
BUILT TO LAST TESTED TO PERFECTION - 100% factory-tested with a seared protection tube ensuring peak performance every time.

The Bosch 15717 Premium Oxygen Sensor combines decades of industry-leading innovation with rugged stainless steel construction and rapid heater technology. Factory-tested for flawless performance, it ensures precise fuel management and emissions control for select Ford, Jaguar, Lincoln, Mazda, and Mercury models. Designed for easy direct-fit installation, this sensor helps maintain engine health, reduce emissions, and optimize fuel economy—making it the smart choice for discerning drivers who demand reliability and efficiency.

Specifications

Brand	Bosch
Material	Stainless Steel
Item Weight	4 ounces
Style	Oxygen Sensor
Maximum Supply Voltage	12 Volts
Mounting Type	Flange Mount
Output Type	Digital
Response Time	5 seconds
Specific Uses For Product	Automotive emission control and fuel efficiency management
UPC	028851157179 826732673004 288511571794
Global Trade Identification Number	00028851157179
Manufacturer	BOSCH
Model	Oxygen Sensor
Item model number	15717
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	15717
OEM Part Number	ZZC318861