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Car Oxygen Sensor 12570795/12586646/12581346/12578624 For Chevrolet / GMC / Buick / Pontiac / Saturn / Isuzu Saab
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Car Oxygen Sensor 12570795/12586646/12581346/12578624 For Chevrolet / GMC / Buick / Pontiac / Saturn / Isuzu Saab
| Place of Origin | China |
| Brand Name | RMOS |
| Model Number | 12570795/12586646/12581346/12578624 |
Product Details
Technical Information:
Sensor Type: O2
OE Number:
12570795/12586646/12581346/12578624
Model:
Chevrolet / GMC / Buick / Pontiac / Saturn / Isuzu Saab
Thread Diameter:
M18 × 1.5
Light-Off Time:
≤ 15 Seconds
Connector Type:
Direct-Fit
Cable Length:
Approx. 460 Mm
Tested:
100% Tested
Quality:
OE Quality
Highlight:
Chevrolet car oxygen sensor with warranty
,GMC auto oxygen sensor replacement
,Buick Pontiac Saab oxygen sensor
Payment & Shipping Terms
Minimum Order Quantity
50
Price
To Be Negotiated
Packaging Details
Foam Bag + Paper box
Delivery Time
1-4weeks
Payment Terms
T/T
Supply Ability
20000pcs/Month
Product Description
GM Oxygen Sensor Overview
These Lambda Sensors are Original Equipment (OE) components manufactured for the General Motors (GM) group, including Chevrolet, GMC, Buick, Pontiac, Saturn, Saab, Isuzu, and Oldsmobile vehicles. The OE numbers 12570795, 12586646, 12581346, and 12578624 are closely related and frequently cross-referenced together across multiple vehicle platforms.
These sensors monitor oxygen content in the exhaust gases and relay this information to the Engine Control Unit (ECU) to ensure the optimal air-fuel mixture is maintained for efficient combustion and reduced emissions. They feature a 4-wire heated design, allowing them to reach operating temperature quickly for precise air-fuel ratio measurement.
Important Note: These OE numbers represent different sensors with different specifications and applications, though they are closely related and often grouped together in parts catalogues. Always verify your original sensor's part number, connector shape, cable length, and position before ordering.
Key Interchangeability Note: According to multiple aftermarket catalogues, 12570795, 12578624, 12581346, and 12586646 are all interchangeable with the Aisin OXSAZ-00291 sensor, which serves as a direct-fit replacement for these OE numbers. The ES20113 is also listed as a replacement for all four OE numbers.
Technical Specifications
| Specification | 12570795 | 12586646 | 12581346 | 12578624 |
|---|---|---|---|---|
| OE Part Number | 12570795 | 12586646 | 12581346 | 12578624 |
| Brand / Manufacturer | GENERAL MOTORS, GMC | GENERAL MOTORS, GMC | CHEVROLET, GENERAL MOTORS, GMC, VAUXHALL | GENERAL MOTORS, GMC, CHEVROLET, BUICK, PONTIAC, SAAB, OLDSMOBILE, ISUZU |
| Sensor Type | Heated, Narrowband, Switching-type | Heated, Narrowband, Switching-type | Heated, Narrowband, Switching-type | Heated, Narrowband, Switching-type |
| Sensor Technology | Zr High Impedance | Zr High Impedance | Zirconia | Zirconia |
| Number of Wires / Poles | 4 | 4 | 4 | 4 |
| Overall Length | 460 mm | 460 mm | - | 460 mm |
| Cable Length | 250 mm | - | - | 335 mm |
| Connector Shape | Square | Square | - | Rectangular |
| Connector Gender | Male | Male | - | - |
| Terminal Quantity | 4 | 4 | 4 | 4 |
| Thread Size | M18 × 1.5 | M18 × 1.5 | M18 × 1.5 | M18 × 1.5 |
| Wrench / Spanner Size | 22 mm (7/8″) | 22 mm (7/8″) | 22 mm (7/8″) | 22 mm (7/8″) |
| Nominal Resistance | - | 16 Ω | - | - |
| Voltage | 12 V | 12 V | 12 V | 12 V |
| Weight | 0.12 kg | - | 0.09 kg | 0.09 kg |
| Fitting Position | Upstream or Downstream | Upstream or Downstream | Upstream or Downstream | Upstream or Downstream (Rear) |
| Heated | Yes | Yes | Yes | Yes |
| Recommended Change Interval | 160,000 km | 160,000 km | 160,000 km | 160,000 km |
| Fitment Type | Vehicle Specific / Direct-Fit | Vehicle Specific / Direct-Fit | Vehicle Specific / Direct-Fit | Vehicle Specific / Direct-Fit |
Technical Notes
- These are 4-wire heated narrowband oxygen sensors manufactured to General Motors' original equipment standards. The four wires serve two independent circuits -- two for the internal heater and two for the sensor signal and ground.
- The built‑in heating element quickly brings the ceramic sensing tip up to operating temperature after a cold start, enabling the ECU to enter closed‑loop fuel control sooner and reduce cold‑start emissions.
- The sensors utilise a zirconium dioxide sensing element to measure the amount of unburned oxygen in the exhaust stream, producing a voltage that senses the presence of rich or lean conditions. The engine control computer uses this feedback to optimise injector timing for efficient combustion and reduced emissions.
- These sensors can be applied as narrow-band sensors with alternating rich/lean signals, providing precise feedback to manage fuel delivery.
- As direct‑fit components, they feature vehicle-specific electrical connectors and pre-terminated wiring, eliminating the need for cutting or splicing during installation.
- The Aisin OXSAZ-00291 aftermarket sensor is a direct-fit replacement for all four OE numbers, featuring a square connector, 460 mm overall length, 4-wire design, and M18 thread size.
- The ES20113 aftermarket sensor is also listed as a replacement for all four OE numbers, featuring a square connector, 325 mm wire harness length, 4-wire design, M18 thread size, and 22 mm wrench size.
Cross-Reference & Interchange Numbers
The following OE numbers are directly interchangeable with these sensors. Always verify physical fitment (connector shape, cable length and thread size) with your original part before purchasing.
| Type | Part Number(s) |
|---|---|
| Primary OE Numbers | 12570795, 12586646, 12581346, 12578624 |
| Related GM OE Numbers | 12589550, 12590750, 12598176, 12603814, 19210423, 19209805, 12634064, 12634085, 12616203, 12596688, 12597449, 12590035, 12558143, 12568234, 12574218, 12583190, 24577303, 5855395, 12 57 8624, 12 59 0750, 8-12578-624-0, 8-12590-750-0, 8-24577-303-0, 8125786240, 8125907500, 8245773030 |
| Isuzu OE Numbers | 8125786240, 8125907500, 8192098050, 8245773030 |
| Saab OE Numbers | 12596688, 12590750 |
| Opel / Vauxhall OE Numbers | 12616203, 12590035, 5855395, 12597449, 12596688 |
| Buick (SGM) OE Numbers | 12634064 |
| Aftermarket Interchange | Aisin OXSAZ-00291 |
| Aftermarket Interchange | ES20113 |
| Aftermarket Interchange | FISPA 90566 |
| Aftermarket Interchange | SIDAT 90566A2 |
| Aftermarket Interchange | MEAT & DORIA 81601 |
| Aftermarket Interchange | STANDARD IGNITION SG326 |
| Aftermarket Interchange | ACDelco 213-1574, 213-1553, 213-1643, 213-360, 213-968, 2132823 |
| Aftermarket Interchange | ERA 570112A |
| Aftermarket Interchange | FEBI BILSTEIN 175944 |
| Aftermarket Interchange | MTE-THOMSON 886240031 |
| Aftermarket Interchange | VEMO V99760002 |
| Aftermarket Interchange | WALKER PRODUCTS 25024773 |
| Aftermarket Interchange | 11275 |
Cross-Reference Notes
- The Aisin OXSAZ-00291 is the most widely documented aftermarket equivalent for all four OE numbers, featuring a 460 mm overall length, square connector, 4-wire design, and M18 thread size.
- The ES20113 is also listed as a direct replacement for all four OE numbers, with a 325 mm wire harness length and 22 mm wrench size.
- The FISPA 90566 sensor is documented as a diagnostic probe with 250 mm cable length, 4 poles, and a 4-way connector, compatible with GM, Chevrolet, Buick, Isuzu, Opel, Saab, and Vauxhall applications.
- The SIDAT 90566A2 sensor is listed with 250 mm cable length, 4 conductors, and diagnostic probe function.
- The MEAT & DORIA 81601 sensor is listed with Zr High Impedance technology and 16 Ω nominal resistance.
- The STANDARD IGNITION SG326 sensor features a rectangular connector, 12.1″ (307 mm) length, 4-wire design, heated, and is a cross-reference for multiple GM OE numbers including 12578624.
- 12589550 is a closely related GM OE number that replaces 12570795 for specific applications including 2003-2005 Chevrolet Astro and GMC Safari.
- 12603814 is a closely related GM OE number that replaces 12586646 for specific applications including 2006 Pontiac Solstice.
- 19209805 is a closely related GM OE number that replaces 12581346, 12590750, 19210712, and 19256730.
- 12565682 and 24577303 are listed as replacements for 12578624.
- Always physically compare your old sensor's connector shape (square or rectangular), pin count (4), cable length, and thread size (M18 × 1.5) before purchasing.
Vehicle Compatibility
These Lambda Sensors are original equipment components used across a wide range of General Motors (GM) group vehicles, including Chevrolet, GMC, Buick, Pontiac, Saturn, Saab, Isuzu, and Oldsmobile. Based on extensive cross‑reference data, these sensors are used in both upstream and downstream positions depending on the specific vehicle application.
Important Position Note: These sensors are used in different positions depending on the specific vehicle and engine application. Always verify the position of your original sensor (before or after the catalytic converter) before ordering.
Chevrolet Applications
| Model | Year Range | Engine / Notes |
|---|---|---|
| Astro | 2003 - 2005 | 4.3L V6. Driver Side (Position 2) |
| Colorado | 2004 - 2008 | 2.8L L4, 3.5L L5, 5.3L V8 (without 5.3L). Rear position |
| Express 1500 | 2003 - 2007 | 4.3L V6, 5.3L V8 |
| Express 2500 | 2003 - 2007 | 4.8L V8, 6.0L V8 |
| Express 3500 | 2003 - 2007 | 4.8L V8, 6.0L V8 |
| Malibu | 2004 - 2008 | 2.2L L4. At converter |
| Malibu Maxx | 2004 - 2008 | 2.2L L4. At converter |
| SSR | 2003 - 2006 | 5.3L V8, 6.0L V8. 1st design |
| Trailblazer | 2002 - 2008 | 4.2L L6, 5.3L V8, 6.0L V8 |
| Trailblazer EXT | 2002 - 2006 | 5.3L V8. 1st design |
| Avalanche | 2002 - 2006 | 5.3L V8 |
GMC Applications
| Model | Year Range | Engine / Notes |
|---|---|---|
| Canyon | 2004 - 2008 | 2.8L L4, 3.5L L5. Rear position |
| Envoy | 2002 - 2008 | 4.2L L6, 5.3L V8 |
| Envoy XL | 2002 - 2006 | 4.2L L6 |
| Envoy XUV | 2004 - 2005 | 4.2L L6 |
| Safari | 2003 - 2005 | 4.3L V6. Driver Side (Position 2) |
| Savana 1500 | 2003 - 2007 | 4.3L V6, 5.3L V8 |
| Savana 2500 | 2003 - 2007 | 4.8L V8, 6.0L V8 |
| Savana 3500 | 2003 - 2007 | 4.8L V8, 6.0L V8 |
Other Brand Applications
| Brand | Model | Year Range | Engine / Notes |
|---|---|---|---|
| Buick | Rainier | 2004 - 2007 | 4.2L L6, 5.3L V8 |
| Pontiac | G6 | 2005 - 2008 | 2.4L L4. Rear position |
| Pontiac | Solstice | 2006 - 2007 | 2.4L L4. Rear position |
| Saturn | Sky | 2007 | 2.4L L4. Rear position |
| Isuzu | Ascender | 2003 - 2008 | 4.2L L6, 5.3L V8. Downstream position |
| Isuzu | i-280 | 2004 - 2006 | 2.8L L4 |
| Isuzu | i-350 | 2004 - 2006 | 3.5L L5 |
| Isuzu | i-370 | 2007 - 2008 | 3.7L L5 |
| Saab | 9-7X | 2005 - 2009 | 4.2L L6, 5.3L V8 |
| Oldsmobile | Bravada | 2002 - 2004 | 4.2L L6 |
Fitment Notes
- These sensors are used in both upstream and downstream positions depending on the vehicle application. They are compatible with Front, Front Left, Front Right, Rear, Rear Left, and Rear Right positions.
- For 2003-2005 Chevrolet Astro and GMC Safari with 4.3L V6: The 12570795 sensor is used on the Driver Side (Position 2) and is replaced by 12589550.
- For 2006 Pontiac Solstice with 2.4L L4: The 12586646 sensor is used in the Rear position and is replaced by 12603814.
- For 2004-2005 GMC Canyon and Chevrolet Colorado: These sensors are used in the Rear position.
- For 2006 Chevrolet Trailblazer EXT with 5.3L V8: The 12581346 sensor is used in the Rear, Upper, Lower position and is replaced by 19209805.
- For 2002-2008 GMC Canyon and Chevrolet Colorado without 5.3L: The 12578624 sensor is used in the Rear position.
- For 2006 Isuzu Ascender: The 12578624 sensor is used in the Downstream position.
- How to verify: Locate your vehicle's catalytic converter. The upstream sensor is installed before the catalytic converter; the downstream sensor is installed after the converter. Check the position of your original sensor before ordering.
- Not compatible with diesel engines -- diesel applications use different sensors with different calibration parameters.
- The vehicle fitment information above is a guide only. Always confirm compatibility using your vehicle's VIN or by physically inspecting your old sensor's position, connector shape, and cable length before ordering.
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