---
product_id: 143580517
title: "BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback"
brand: "bosch"
price: "Bs.2511"
currency: BOB
in_stock: true
reviews_count: 9
category: "Bosch"
url: https://www.desertcart.bo/products/143580517-bosch-15638-premium-oe-fitment-oxygen-sensor-compatible-with-select
store_origin: BO
region: Bolivia
---

# Fast-acting heater Direct-fit OE installation Decades of tech legacy BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback

**Brand:** bosch
**Price:** Bs.2511
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback by bosch
- **How much does it cost?** Bs.2511 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/143580517-bosch-15638-premium-oe-fitment-oxygen-sensor-compatible-with-select)

## Best For

- bosch enthusiasts

## Why This Product

- Trusted bosch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug-and-Play OE Fitment:** True direct-fit connectors and pre-coated threads make installation effortless and mess-free.
- • **Decades of Proven Innovation:** Built on Bosch’s 50+ years pioneering oxygen sensor tech for unmatched reliability.
- • **Durable Stainless Steel Build:** Submersible, sealed body resists exhaust damage for extended sensor lifespan.
- • **Rapid Heat-Up for Peak Performance:** Heats up within seconds to optimize engine efficiency and reduce emissions instantly.
- • **Engineered for Select Subaru Models:** Precision compatibility with 1999-01 Impreza, Legacy, and 2000-01 Outback ensures perfect integration.

## Overview

The BOSCH 15638 Premium OE Fitment Oxygen Sensor delivers factory-tested, fast-acting, and durable performance tailored for select Subaru Impreza, Legacy, and Outback models. Featuring a stainless steel body and true direct-fit OE connectors, it ensures quick installation and long-lasting reliability, optimizing engine efficiency and reducing emissions.

## Description

Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since the first Oxygen Sensor was invented in the late 1960's, ensuring long-lasting performance that you can count on. Bosch Oxygen Sensors are 100% tested for full functionality to ensure every sensor meets Bosch's rigorous standards for quality and performance. Stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions - ensuring a longer sensor service life. Fast-acting heater optimizes sensor operation on Planar and 3, 4, and 5 wire Thimble type sensors, allowing the oxygen sensor to reach its operating temperature quicker - within seconds - for optimum performance. True Direct-fit OE connectors and harnesses, along with threads pre-coated with anti-seize compound right out of the box, make installation simple and hassle-free. It's critical that oxygen sensors are replaced at the suggested intervals provided by vehicle manufacturers - before the sensor fails. Following the recommendations will prevent long term damage to a vehicle's engine, reduce harmful carbon dioxide (CO2) emissions, and save you money when filling up at the gas pump.

Review: Fits ok and works well. - Works well and fits ok. The wire length just makes it - no extra. Used on a 2002 Nissan Pathfinder behind catalytic converter.
Review: As good as OEM - This O2 sensor fixed my “SES” in my 2002 M3. I didn’t have any major misfires or issues besides the light in my dash. After a quick DIY online I decided to tackle this myself on a Sunday morning. I went ahead and replaced both “pre-cat” sensors. Light is gone and car is running flawlessly.

## Features

- [INNOVATIVE TECHNOLOGY] - Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since first inventing the Oxygen Sensor in the late 1960's, ensuring long-lasting performance
- [FACTORY TESTED] - Each sensor meets Bosch's rigorous standards for quality and performance and undergoes a fully functional quality test before leaving the factory to ensure operation within design specifications
- [STAINLESS STEEL BODY] - Stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions - ensuring longer sensor service life
- [FAST ACTING HEATER] - Fast-acting heater optimizes sensor operation on Planar and 3, 4, and 5 wire Thimble type sensors allowing the oxygen sensor to reach its operating temperature quicker - within seconds - for optimum performance
- [READY TO INSTALL] - True Direct-fit OE connectors and harnesses, along with threads pre-coated with anti-seize compound right out of the box, make installation simple and easy
- Compatible with select vehicles (Note: engine may affect fitment - verify specific fitment details, including sensor position, with fit checker above): SUBARU: 1999-01 Impreza, 1999-01 Legacy, 2000-01 Outback

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BZG8VE |
| Best Sellers Rank | #1,264,699 in Automotive ( See Top 100 in Automotive ) #7,490 in Automotive Replacement Oxygen Sensors |
| Brand | Bosch |
| Date First Available | January 2, 2007 |
| Global Trade Identification Number | 00028851156387 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item dimensions L x W x H | 2.21 x 1.97 x 5.83 inches |
| Item model number | Bosch_15638 |
| Manufacturer | Bosch |
| Material | Stainless Steel |
| Mounting Type | Flange Mount |
| Output Type | electrical signal |
| Product Dimensions | 2.21 x 1.97 x 5.83 inches |
| Specific Uses For Product | Oxygen Sensor |
| Style | Oxygen Sensor |
| UPC | 028851156387 |

## Product Details

- **Brand:** Bosch
- **Item Weight:** 0.25 Pounds
- **Item dimensions L x W x H:** 2.21 x 1.97 x 5.83 inches
- **Material:** Stainless Steel
- **Style:** Oxygen Sensor

## Images

![BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback - Image 1](https://m.media-amazon.com/images/I/41-eDeWa7OL.jpg)
![BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback - Image 2](https://m.media-amazon.com/images/I/41QQJO66cZL.jpg)
![BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback - Image 3](https://m.media-amazon.com/images/I/41sD2r-PxmL.jpg)
![BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback - Image 4](https://m.media-amazon.com/images/I/41zJf8QQl9L.jpg)
![BOSCH 15638 Premium OE Fitment Oxygen Sensor - Compatible with Select Subaru Impreza, Legacy, Outback - Image 5](https://m.media-amazon.com/images/I/61Uuvs8koPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits ok and works well.
*by R***Y on December 21, 2025*

Works well and fits ok. The wire length just makes it - no extra. Used on a 2002 Nissan Pathfinder behind catalytic converter.

### ⭐⭐⭐⭐⭐ As good as OEM
*by C***N on April 5, 2020*

This O2 sensor fixed my “SES” in my 2002 M3. I didn’t have any major misfires or issues besides the light in my dash. After a quick DIY online I decided to tackle this myself on a Sunday morning. I went ahead and replaced both “pre-cat” sensors. Light is gone and car is running flawlessly.

### ⭐⭐⭐⭐⭐ All good!
*by N***O on January 10, 2021*

No issues with installation. Oxygen sensor works as it should. Check engine light for bad downstream sensor is gone.

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-18*