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ACDelco 12681993 - Engine Intake Manifold Temperature Sensor
Product Overview
The ACDelco 12681993 Engine Intake Manifold Temperature Sensor is an essential component designed to provide accurate temperature readings within the intake manifold. This OE-level part ensures reliability and a precise fitment for various General Motors vehicles, including Chevrolet, Buick, GMC, and Cadillac models. Engineered and tested to meet rigorous standards, the ACDelco 12681993 guarantees quality and performance backed by the trusted General Motors brand. Choose ACDelco 12681993 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This ACDelco 12681993 is equivalent to or replaces the following part numbers:
Vehicle Compatibility
- Buick Cascada (2016-2019) 1.6
- Buick Encore (2018-2022) 1.4
- Chevrolet Silverado 2500 HD (2017-2022) 6.6 V8
- Chevrolet Silverado 3500 HD (2017-2022) 6.6 V8
- Chevrolet Cruze (2018-2019) 1.4
- Chevrolet Equinox (2018-2022) 1.5
- Chevrolet Malibu (2018-2022) 1.5
- Chevrolet Trax (2021-2022) 1.4
- GMC Sierra 2500 HD (2017-2022) 6.6 V8
- GMC Sierra 3500 HD (2017-2022) 6.6 V8
- GMC Terrain (2018-2023) 1.5
This also fits other applications. Please use the vehicle selector tool to verify fitment.
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Frequently Asked Questions
What is the function of the ACDelco 12681993 sensor?
The ACDelco 12681993 Engine Intake Manifold Temperature Sensor measures the temperature of the air entering the engine, helping to optimize fuel injection and improve engine performance.
What vehicles are compatible with the ACDelco 12681993?
This sensor is compatible with several GM models, including the Chevrolet Silverado and Buick Encore, among others. Always verify fitment using the vehicle selector tool.
What issues can arise if the intake manifold temperature sensor fails?
A malfunctioning intake manifold temperature sensor can lead to poor engine performance, increased emissions, and potential diagnostic trouble codes (DTCs) such as P0111 or P0112.
How do I know if I need to replace the ACDelco 12681993?
If you experience erratic engine performance or notice the check engine light illuminated, it may be time to replace the ACDelco 12681993 sensor.
Where can I find more information on the ACDelco 12681993?
For more details on the ACDelco 12681993 Engine Intake Manifold Temperature Sensor, please refer to the product description and specifications listed on our website.
Order ACDelco 12681993 today for a factory-correct replacement that restores safety and performance.
- BrandACDelco
- ManufacturerACDelco
- MPN12681993
- FeaturesConnector Gender : Female
Connector Quantity : 1
Connector Shape : Oval
Features & Benefits - Bullet 1 : Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
Features & Benefits - Bullet 2 : ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
Features & Benefits - Bullet 3 : GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features & Benefits - Bullet 4 : GM regularly updates production and service part designs to integrate new materials and technologies
Length (in) : 1.783
Length (mm) : 45.3
Meets or Exceeds Original Equipment Manufacture Specifications : Yes
Product Description : ACDelco GM Original Equipment Engine Intake Manifold Temperature Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional. ⚠ <bold>WARNING:</bold> Cancer and Reproductive Harm - <Underline>https://www.P65Warnings.ca.gov</Underline>
Programming Required : No
Temperature High : 266
Temperature Low : -40
Terminal Gender : Male
Terminal Quantity : 4
Terminal Type : Blade - Part TypeEngine Intake Manifold Temperature Sensor
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2018 | Chevrolet | Equinox | LS (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2018 | Chevrolet | Equinox | LT (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2018 | Chevrolet | Equinox | Premier (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2018 | Chevrolet | Equinox | L (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2019 | Chevrolet | Equinox | L (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2019 | Chevrolet | Equinox | LS (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2019 | Chevrolet | Equinox | LT (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2019 | Chevrolet | Equinox | Premier (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2019 | Chevrolet | Cruze | LT (1.4 L4 GAS) | Engine: LE2, VIN: M |
| 2019 | Chevrolet | Cruze | L (1.4 L4 GAS) | Engine: LE2, VIN: M |
| 2019 | Chevrolet | Cruze | LS (1.4 L4 GAS) | Engine: LE2, VIN: M |
| 2019 | Chevrolet | Cruze | Premier (1.4 L4 GAS) | Engine: LE2, VIN: M |
| 2019 | Chevrolet | Silverado 3500 HD | High Country (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2019 | Chevrolet | Silverado 3500 HD | LT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2019 | Chevrolet | Silverado 3500 HD | LTZ (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2019 | Chevrolet | Silverado 3500 HD | WT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2019 | Chevrolet | Silverado 2500 HD | High Country (6.6 V8 DIESEL) | |
| 2020 | GMC | Terrain | SL (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 9, Transmission Control: Automatic, Transmission Code: 9T45, Notes: STOP/START ENGINE CONTROL SYSTEM(KL9) |
| 2020 | GMC | Terrain | SLE (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 9, Transmission Control: Automatic, Transmission Code: 9T45, Notes: STOP/START ENGINE CONTROL SYSTEM(KL9) |
| 2020 | GMC | Terrain | SLT (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 9, Transmission Control: Automatic, Transmission Code: 9T45, Notes: STOP/START ENGINE CONTROL SYSTEM(KL9) |
| 2020 | GMC | Sierra 3500 HD | AT4 (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | AT4 (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | Base (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | Base (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | Denali (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | Denali (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | SLE (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | SLE (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | SLT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 3500 HD | SLT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | AT4 (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | AT4 (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | Base (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | Base (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | Denali (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | Denali (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | SLE (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | SLE (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | SLT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | GMC | Sierra 2500 HD | SLT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Equinox | L (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2020 | Chevrolet | Equinox | LS (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2020 | Chevrolet | Equinox | LT (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2020 | Chevrolet | Equinox | Premier (1.5 L4 GAS) | Engine: LYX, VIN: V, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2020 | Chevrolet | Silverado 3500 HD | High Country (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | High Country (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | LT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | LT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | LTZ (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | LTZ (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | WT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 3500 HD | WT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | Custom (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | High Country (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | High Country (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | LT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | LT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | LTZ (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | LTZ (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | WT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2020 | Chevrolet | Silverado 2500 HD | WT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2021 | Chevrolet | Trax | LS (1.4 L4 GAS) | Engine: LE2, VIN: M, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2021 | Chevrolet | Trax | LT (1.4 L4 GAS) | Engine: LE2, VIN: M, Transmission Type: Transaxle, Speed: 6, Transmission Control: Automatic, Transmission Code: 6T40 |
| 2022 | GMC | Sierra 2500 HD | AT4 (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | AT4 (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | Denali (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | Denali (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | Pro (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | Pro (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | SLE (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | SLE (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | SLT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 2500 HD | SLT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | AT4 (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | AT4 (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | Denali (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | Denali (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | Pro (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | Pro (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | SLE (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | SLE (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | SLT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | GMC | Sierra 3500 HD | SLT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | Custom (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | Custom (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | High Country (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | High Country (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | LT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | LT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | LTZ (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | LTZ (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | WT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 2500 HD | WT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | High Country (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | High Country (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | LT (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | LT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | LTZ (6.6 V8 GAS) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | LTZ (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
| 2022 | Chevrolet | Silverado 3500 HD | WT (6.6 V8 DIESEL) | Engine: L5P, VIN: Y |
Warranty Overview
At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, use our Return Portal or contact support.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For full details, please see our complete Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.










