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| Condition | new |
| MPN | E99221300CP |
| UPC | 712367189020 |
| Features | Direct Fit |
| Thread Size | M18 |
| Terminal Type | Blade |
| Country of Origin | China |
| Superseded Part Number | 2AA234-4012 |
| Interchange Part Number | o2 sensor cost, 02 sensor, heated oxygen sensor car |
| Universal Or Specific Fit | Specific |
| Fitment Type | Direct Replacement |
| Modified Item | No |
| Type | Sensor |
| Position | Upstream, Downstream, Sensor 1, Sensor 2 |
| Custom Bundle | Yes |
| Manufacturer Warranty | 1 Year |
| Pin Quantity | 4, 4, 4 |
| Mounting Type | Threaded |
| Number of Pieces | 3 |
| Attachment Method | Screw-On |
| Other Part Number | A-15703 |
| Output Signal Range | 0.2V To 0.8V |
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Description
xPart Overview
The O2 Oxygen Sensor is a precision-engineered aftermarket replacement built for 1998-2005 Chevy Blazer / S10, 1998-2004 GMC Sonoma / Jimmy, and 1998-2000 Isuzu Hombre applications. This 4-wire heated sensor is designed for direct fitment in either the upstream (pre-catalytic converter) or downstream (post-catalytic converter) position, monitoring exhaust oxygen content to keep your fuel trim and emissions system running within factory spec. Backed by KOEEP's 1-year warranty and free worldwide shipping.
Vehicle Compatibility
| Make | Model | Year | Trim / Engine |
|---|---|---|---|
| Chevrolet | Blazer | 1998–2005 | 4.3L V6 — Upstream / Downstream |
| Chevrolet | S10 Pickup | 1998–2004 | 4.3L V6 — Upstream / Downstream |
| GMC | Sonoma | 1998–2004 | 4.3L V6 — Upstream / Downstream |
| GMC | Jimmy | 1998–2001 | 4.3L V6 — Upstream / Downstream |
| Isuzu | Hombre | 1998–2000 | 4.3L V6 — Upstream / Downstream |
Key Specifications
| Part Type | Heated Oxygen Sensor (O2 Sensor) — Upstream / Downstream |
| Reference OE Number | Cross-references ACDelco / NGK / Denso equivalents for the 4.3L V6 application (verify via VIN) |
| Wiring | 4-wire heated sensor with OE-style connector |
| Material | Stainless steel housing, ceramic sensing element |
| Condition | Brand New Aftermarket |
| Warranty | 1 Year |
Why Choose This Part?
- Direct Fit: Engineered to match the OE connector, wire length and thread pitch for the 4.3L V6 family — no splicing or adapters required.
- Restores Engine Performance: A new O2 sensor clears check-engine codes, restores fuel economy, and stabilizes idle on Blazer / S10 / Sonoma / Jimmy platforms.
- Emissions Compliance: Helps the catalytic converter operate at peak efficiency, supporting OBD-II readiness for state inspections.
- Free Worldwide Shipping: Delivered to your door at no extra cost, anywhere KOEEP ships.
- 1-Year Warranty: Covered against defects in materials and workmanship for a full year from the date of delivery.
How to Order
Click Add to Quote above or email us at support@koeep.com with the part number, your vehicle's VIN, and whether you need upstream or downstream position. We'll get back with availability and pricing within 24 hours.
Ready to order this part?
Click Add to Quote or email support@koeep.com with the SKU and your vehicle VIN.
Request a Quote →Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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