AFH70M-78 AFH70M-121 Mass Air Flow Sensor 23262343

Product Overview

Brand new high-quality Mass Air Flow (MAF) Sensor with OEM numbers AFH70M-78, AFH70M-121, 23262343, 23118170, 20787043. It accurately measures intake air volume and density, sends stable signals to the ECU, optimizes air-fuel ratio, improves engine performance, fuel efficiency, and reduces emissions. Direct plug-and-play replacement for Buick, Cadillac, Chevrolet and GMC vehicles.

Interchange OE Part Numbers

AFH70M-78 AFH70M-121 23262343 23118170 20787043

Vehicle Fitment

Buick
2012-2015 Buick Enclave 3.6L
2012-2015 Buick LaCrosse 3.6L
Cadillac
2013-2015 Cadillac ATS 2.0L 2.5L 3.6L
2012-2015 Cadillac CTS 2.0L 3.0L 3.6L
2012-2015 Cadillac SRX 3.0L 3.6L
2013-2015 Cadillac XTS 3.6L
2015-2016 Cadillac Escalade 6.2L
2015 Cadillac Escalade ESV 6.2L
Chevrolet
2012-2015 Chevy Camaro 3.6L
2012-2015 Chevy Captiva Sport 2.4L 3.0L
2013-2015 Chevy Malibu 2.0L 2.5L
2012-2016 Chevy Impala 2.5L 3.6L
2014-2016 Chevy Impala Limited 3.6L
2012-2016 Chevy Traverse 3.6L
2012-2015 Chevy Equinox 2.4L 3.0L 3.6L
2013-2015 Chevy Express Van 2500 6.6L
2013-2015 Chevy Express Van 3500 6.6L
2014-2015 Chevy Silverado 1500 4.3L 5.3L 6.2L 6.6L
2013-2015 Chevy Silverado 2500 HD 6.6L
2013-2015 Chevy Silverado 3500 HD 6.6L
2015 Chevy Tahoe 5.3L 6.2L
2015 Chevy Suburban 5.3L
2015 Chevy Colorado 2.5L 3.6L
GMC
2012-2016 GMC Acadia 3.6L
2012-2015 GMC Terrain 2.4L 3.6L
2013-2015 GMC Savana Van 2500 6.6L
2013-2015 GMC Savana Van 3500 6.6L
2014-2015 GMC Sierra 1500 4.3L 5.3L 6.2L 6.6L
2013-2015 GMC Sierra 2500 HD 6.6L
2013-2015 GMC Sierra 3500 HD 6.6L
2015 GMC Yukon 5.3L
2015 GMC Yukon XL 5.3L
2015 GMC Canyon 3.6L

Product Specifications

Item Type	Mass Air Flow (MAF) Sensor
OE Numbers	AFH70M-78, AFH70M-121, 23262343, 23118170, 20787043
Fit For	Buick, Cadillac, Chevrolet, GMC
Installation	Direct Plug & Play, No Modification
Condition	100% Brand New, Aftermarket Premium

Key Features & Benefits

100% tested before shipment to meet OEM standards
High-precision sensing for stable air flow detection
Improves engine idle, acceleration, and fuel economy
Fixes rough idle, hesitation, and check engine light issues
Heat & vibration resistant for long service life
Direct replacement, easy installation

Common Failure Symptoms

Check Engine Light (MIL) ON
Rough idle, engine stalling
Poor acceleration & lack of power
Increased fuel consumption
Difficult starting

Important Note

Please confirm your OE part number, vehicle year and engine size before purchase.
Professional installation is highly recommended.
We provide 12-month warranty and fast US domestic shipping.

On Jun 3, 2026 at 05:44:12 PDT, seller added the following information: