Bosch Oxygen Sensor 13474 OE-Fit Heated Direct-Fit Single — Fast Heat-Up & Stainless Steel Durability

The BOSCH 13474 is a premium OE-fit oxygen sensor engineered to deliver reliable air-fuel monitoring and plug-and-play installation for compatible GM vehicles.

This Bosch oxygen sensor brings decades of sensor engineering to a single replacement part, combining robust materials, factory testing and built-in installation aids so your vehicle’s engine management can read exhaust oxygen levels accurately. It’s designed as a direct-fit unit with OE-style connectors and pre-applied thread compound to reduce installation time and help avoid cross-threading or seizing.

How does the Bosch 13474 reach operating temperature quickly?

The sensor includes a fast-acting heater that shortens warm-up time so the sensor begins delivering correct oxygen readings within seconds of engine start. Faster heat-up improves the engine control module’s ability to adjust fuel delivery during cold operation.

• Integrated heater element for rapid activation
• Optimized for planar and multi-wire thimble types
• Reduces the period of rich or lean running after cold starts

What construction features improve durability against exhaust conditions?

Bosch builds this sensor with a double laser-welded stainless steel housing that is tightly sealed and submersible, protecting the sensing element from corrosive exhaust byproducts. That rugged construction extends service life in high-temperature, high-moisture environments.

• Double laser-welded stainless steel body for strength
• Sealed protection tube to resist exhaust contamination
• Factory-tested assembly to confirm functional integrity

Is the 13474 easy to install and compatible with my vehicle?

This Bosch part is supplied as a true direct-fit replacement with OE-style connectors and harnesses, plus threads pre-coated with an anti-seize compound so you can install it without additional preparations. Always verify vehicle-year, engine and sensor position against the fitment guide before purchase.

• Direct-fit OE connector and harness included
• Threads pre-coated with anti-seize compound out of the box
• Compatible with many late-1990s to early-2000s GM cars, trucks and SUVs — check fitment tool

Why should I choose Bosch over aftermarket generic sensors?

Bosch leverages its original development experience and factory-level testing to produce sensors that meet strict performance standards. Choosing a Bosch OE-fit unit helps maintain accurate oxygen sensing and reduces the risk of premature failure compared with lower-quality replacements.

• Heritage from the company that developed the automotive oxygen sensor
• 100% functional testing on every sensor prior to shipment
• Designed to meet or exceed OEM specifications for fit and function

Who is this for: The BOSCH 13474 is aimed at DIY mechanics, professional technicians and vehicle owners who need a dependable OE-style oxygen sensor for compatible Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac models from the late 1990s and early 2000s. It’s especially suited for anyone who wants a robust, ready-to-install replacement with fast warm-up and proven durability — just confirm fitment for your specific engine and sensor position before ordering.