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Car Oxygen Sensor 12570795/12586646/12581346/12578624 For Chevrolet / GMC /

China Car Oxygen Sensor 12570795/12586646/12581346/12578624 For Chevrolet / GMC /

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Car Oxygen Sensor 12570795/12586646/12581346/12578624 For Chevrolet / GMC /

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Tested	100% Tested
Packaging Details	Foam Bag + Paper box
Cable Length	Approx. 460 mm
Supply Ability	20000pcs/Month
Model	Chevrolet / GMC / Buick / Pontiac / Saturn / Isuzu Saab
Connector Type	Direct-Fit
Quality	OE Quality
Technical Information	Sensor Type: O2
Payment Terms	T/T
Thread Diameter	M18 × 1.5
Delivery Time	1-4weeks
OE Number	12570795/12586646/12581346/12578624
Light-Off Time	≤ 15 seconds
Model Number	12570795/12586646/12581346/12578624
Brand Name	RMOS
Place of Origin	China

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Product Details
Company Details

Product Specification


Tested	100% Tested	Packaging Details	Foam Bag + Paper box
Cable Length	Approx. 460 mm	Supply Ability	20000pcs/Month
Model	Chevrolet / GMC / Buick / Pontiac / Saturn / Isuzu Saab	Connector Type	Direct-Fit
Quality	OE Quality	Technical Information	Sensor Type: O2
Payment Terms	T/T	Thread Diameter	M18 × 1.5
Delivery Time	1-4weeks	OE Number	12570795/12586646/12581346/12578624
Light-Off Time	≤ 15 seconds	Model Number	12570795/12586646/12581346/12578624
Brand Name	RMOS	Place of Origin	China
High Light	Chevrolet car oxygen sensor with warranty ，GMC auto oxygen sensor replacement ，Buick Pontiac Saab oxygen sensor

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.

Company Details

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Year Established:

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Total Annual:

10000000-50000000
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Company Overview Hefei Ruimin Auto Sensor Co., Ltd. (hereinafter referred to as “Hefei Ruimin”) is a leading manufacturer and global trader specializing in the R&D, production, and sales of high-quality automotive sensors. Headquartered in Hefei, a renowned technology and industrial ... Company Overview Hefei Ruimin Auto Sensor Co., Ltd. (hereinafter referred to as “Hefei Ruimin”) is a leading manufacturer and global trader specializing in the R&D, production, and sales of high-quality automotive sensors. Headquartered in Hefei, a renowned technology and industrial ...

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Second Floor, No. 4 Building, No. 1666, Ningxi Road, High-Tech District,Hefei,Anhui,China
https://www.ruiminsensor.com/

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