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Car Oxygen Sensor 12597990/12590749/12606671/12609456 For Buick / Cadillac /

China Car Oxygen Sensor 12597990/12590749/12606671/12609456 For Buick / Cadillac /

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Car Oxygen Sensor 12597990/12590749/12606671/12609456 For Buick / Cadillac /

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OE Number	12597990/12590749/12606671/12609456
Packaging Details	Foam Bag + Paper box
Light-Off Time	≤ 15 seconds
Quality	OE Quality
Supply Ability	20000pcs/Month
Cable Length	Approx. 755 mm
Technical Information	Sensor Type: O2
Thread Diameter	M18 × 1.5
Payment Terms	T/T
Connector Type	Direct-Fit
Delivery Time	1-4weeks
Tested	100% Tested
Model	Buick / Cadillac / Chevrolet
Model Number	12597990/12590749/12606671/12609456
Brand Name	RMOS
Place of Origin	China

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Product Details
Company Details

Product Specification


OE Number	12597990/12590749/12606671/12609456	Packaging Details	Foam Bag + Paper box
Light-Off Time	≤ 15 seconds	Quality	OE Quality
Supply Ability	20000pcs/Month	Cable Length	Approx. 755 mm
Technical Information	Sensor Type: O2	Thread Diameter	M18 × 1.5
Payment Terms	T/T	Connector Type	Direct-Fit
Delivery Time	1-4weeks	Tested	100% Tested
Model	Buick / Cadillac / Chevrolet	Model Number	12597990/12590749/12606671/12609456
Brand Name	RMOS	Place of Origin	China
High Light	Buick car oxygen sensor ，Cadillac auto oxygen sensor with warranty ，Chevrolet O2 sensor 12597990

GM Original Equipment Oxygen Sensors

These Lambda Sensors are Original Equipment (OE) components manufactured for the General Motors (GM) group, including Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saturn, Saab, Isuzu, and Opel vehicles.

Important Note: These four OE numbers represent different sensors with different cable lengths, connector configurations, and fitting positions, 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.

Product Specifications

12597990 – Heated Oxygen Sensor

Specification	Details
OE Part Number	12597990
Brand / Manufacturer	GENERAL MOTORS, BUICK, CADILLAC, CHEVROLET, GMC, OPEL
Product Type	Lambda Sensor (Oxygen / O₂ Sensor)
Sensor Type	Heated, 4-Wire
Connector Gender	Male / Female (varies by manufacturer)
Connector Shape	Square
Wire Harness Length	378 mm (14.88″) / 358 mm (14.09″)
Overall Length	431.5 mm (16.98″) / 341.3 mm (13.44″)
Thread Diameter	18 mm (M18 * 1.5)
Mounting Type	Threaded / POSN 1
Fitting Position	Upstream (Front)
Programming Required	Yes
Quality Standard	GM Genuine OE

This is a 4-wire heated oxygen sensor manufactured to General Motors' original equipment standards. The sensor is used in the upstream (pre-catalyst / front) position on most applications. As a direct-fit component, it features a vehicle-specific electrical connector (square, 4-pin) and pre-terminated wiring.

12590749 – Heated Oxygen Sensor

Specification	Details
OE Part Number	12590749
Brand / Manufacturer	GENERAL MOTORS, BUICK, CHEVROLET, GMC, OPEL, SAAB
Product Type	Lambda Sensor (Oxygen / O₂ Sensor)
Sensor Type	Heated, 4-Wire
Connector Gender	Male
Connector Shape	Square
Wire Harness Length	378 mm (14.88″) / 210 mm (8.27″)
Overall Length	431.5 mm (16.98″) / 350 mm (13.78″)
Thread Diameter	18 mm (M18 * 1.5)
Mounting Type	Threaded / POSN 2
Fitting Position	Upstream or Downstream
Programming Required	Yes
Quality Standard	GM Genuine OE

This is a 4-wire heated oxygen sensor manufactured to General Motors' original equipment standards. The sensor can be used in either upstream or downstream positions depending on the specific vehicle application. Some aftermarket equivalents list a cable length of 210 mm with a finger probe design and pre-greased threads.

12606671 – Heated Oxygen Sensor

Specification	Details
OE Part Number	12606671
Brand / Manufacturer	GENERAL MOTORS, CHEVROLET, GMC, PONTIAC, SATURN, OPEL, DAEWOO
Product Type	Lambda Sensor (Oxygen / O₂ Sensor)
Sensor Type	Heated, 4-Wire
Sensor Design	Finger Probe
Number of Circuits / Poles	4
Cable Length	210 - 340 mm (varies by manufacturer)
Overall Length	350 - 580 mm (varies by manufacturer)
Thread Size	M18 * 1.5
Thread Treatment	Factory Pre-Greased
Fitting Position	Upstream (Bank 1 Sensor 1)
Quality Standard	GM Genuine OE

This is a 4-wire heated oxygen sensor (finger probe design) manufactured to General Motors' original equipment standards. The sensor is used in the upstream (pre-catalyst / Bank 1 Sensor 1) position on most applications. The threads are factory pre-greased with anti-seize compound for quick and easy installation. Direct-fit component featuring a vehicle-specific electrical connector and pre-terminated wiring.

12609456 – Heated Oxygen Sensor

Specification	Details
OE Part Number	12609456
Brand / Manufacturer	GENERAL MOTORS, CHEVROLET, GMC, HUMMER, OPEL
Product Type	Lambda Sensor (Oxygen / O₂ Sensor)
Sensor Type	Heated, 4-Wire
Connector Gender	Male
Connector Shape	Square
Wire Harness Length	330 mm (12.99″)
Overall Length	414.6 mm (16.32″)
Thread Diameter	18 mm (M18 * 1.5)
Wire Gauge	20 GA
Mounting Type	Threaded / Position 3
Fitting Position	Downstream (Rear)
Programming Required	Yes
Quality Standard	GM Genuine OE

This is a 4-wire heated oxygen sensor manufactured to General Motors' original equipment standards. The sensor is used in the downstream (post-catalyst / rear) position on most applications. The sensor is installed in Position 3 (Left Rear / Right Rear). As a direct-fit component, it features a vehicle-specific electrical connector (square, 4-pin) and pre-terminated wiring.

Cross-Reference & Interchange Numbers

The following OE and interchange numbers are directly compatible 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	12597990, 12590749, 12606671, 12609456
Related GM OE Numbers	12604913, 8125907490, 8126049130, 12590749, 12606671, 12609456, 8-12590-749-0, 8-12604-913-0
BUICK	12590749, 12597990
CADILLAC	12597990
CHEVROLET	12590749, 12597990, 12606671, 12609456
GMC	12590749, 12597990, 12604913, 12606671, 12609456, 8125907490
HUMMER	12609456
ISUZU	8125907490, 8126049130, 8-12604-913-0
OPEL	12590749, 12597990, 12606671, 12609456, 012590749, 012597990, 012604913, 012606671, 012609456
PONTIAC	12606671
SAAB	12590749, 12604913
SATURN	12606671
VAUXHALL	12590749
Aftermarket Interchange	Aisin OXSAZ-00264
Aftermarket Interchange	Meat & Doria 81828
Aftermarket Interchange	VEMO V99-76-0001
Aftermarket Interchange	DENSO 234-4339 (for 12597990/12590749)
Aftermarket Interchange	ACDelco 213-3536 (for 12590749)
Aftermarket Interchange	ACDelco 213-3545 (for 12597990)
Aftermarket Interchange	ACDelco 213-4537 (for 12606671)
Aftermarket Interchange	ACDelco 213-4228 (for 12609456)
Aftermarket Interchange	ES20000 (for 12597990/12590749)
Aftermarket Interchange	Standard Ignition SG1628 (for 12597990/12590749)
Aftermarket Interchange	Walker Products 250-24704 (for 12597990/12590749)
Aftermarket Interchange	NTK 21558 (for 12597990/12590749)

Compatible Vehicle Applications

These Lambda Sensors are original equipment components used across a wide range of General Motors (GM) group vehicles, including Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saturn, Saab, and Isuzu.

Important Position Note: These sensors are used in different positions depending on the specific vehicle and engine application. 12597990 and 12606671 are typically used in the upstream (pre-catalyst / front) position, 12590749 can be used in both upstream and downstream positions, and 12609456 is primarily a downstream (post-catalyst / rear) sensor. Always verify the position of your original sensor before ordering.

Buick Applications

Model	Year Range	Engine / Notes
Lucerne	2006 - 2011	4.6L V8. Upstream position
Rainier	2006 - 2007	4.2L L6, 5.3L V8. Upstream position

Cadillac Applications

Model	Year Range	Engine / Notes
DTS	2006 - 2011	4.6L V8. Upstream position
Escalade	1999 - 2000	Various petrol engines

Chevrolet Applications

Model	Year Range	Engine / Notes
Trailblazer	2006 - 2009	4.2L L6, 5.3L V8, 6.0L V8. Upstream position
Trailblazer EXT	2006	5.3L V8. Upstream position
SSR	2006	6.0L V8. Upstream position
Silverado 1500	2008 - 2013	4.3L V6. Downstream position
Captiva Sport	2012 - 2015	2.4L L4. Upstream position
Equinox	2007 - 2017	2.4L L4. Upstream position
Malibu	2008 - 2012	2.4L L4. Upstream position
HHR	2007 - 2011	2.4L L4. Upstream position
Orlando	2012 - 2014	2.4L L4. Upstream position

GMC Applications

Model	Year Range	Engine / Notes
Envoy	2006 - 2009	4.2L L6, 5.3L V8. Upstream position
Envoy XL	2006	5.3L V8. Upstream position
Sierra 1500	2008 - 2013	4.3L V6. Downstream position
Terrain	2010 - 2017	2.4L L4. Upstream position

Other Vehicle Applications

Brand	Model	Year Range	Engine / Notes
Hummer	H2	2008 - 2009	6.2L V8. Downstream position
Pontiac	G6	2005 - 2010	2.4L L4. Upstream position
Pontiac	Solstice	2006 - 2009	2.4L L4. Upstream position
Saturn	Aura	2007 - 2009	2.4L L4. Upstream position
Saturn	Sky	2007 - 2009	2.4L L4. Upstream position
Saturn	Vue	2008 - 2010	2.4L L4. Upstream position
Saab	9-7x	2006 - 2009	5.3L V8. Upstream position
Isuzu	Ascender	2006 - 2008	4.2L L6, 5.3L V8. Upstream position

Fitment Verification: 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. Not compatible with diesel engines.

Company Details

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Business Type:

Manufacturer 
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Year Established:

2021 
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Total Annual:

10000000-50000000
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Employee Number:

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

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