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ACDelco 42670687 - Radiator
- BrandACDelco
- ManufacturerACDelco
- MPN42670687
- FeaturesCore Height : 15.15
Core Height : 384.88
Core Material : Aluminum
Core Thickness : 0.79
Core Thickness : 20
Core Width : 26.78
Core Width : 680.24
Down Flow Or Cross Flow Type : Cross Flow
Engine Oil Cooler Included : No
FAQ - Answer 1 : No, an overheating engine could mean an issue with your radiator, but there are other pieces of the cooling system that could cause the engine to overheat. It is important to check for coolant leaks or a malfunctioning fan. If you look at the radiator and there is a lot of corrosion or holes there may be a problem with the radiator. Either way it is important to get the whole cooling system checked when your engine overheats.
FAQ - Question 1 : My engine is overheating does this mean I need to replace my radiator?
Features & Benefits - Bullet 1 : Lightweight; the radiators have a positive heat transfer to weight ratio
Features & Benefits - Bullet 2 : Corrosion-resistant aluminum designed core helps optimize the radiators long lasting
Features & Benefits - Bullet 3 : GM-recommended replacement part for your GM vehicle's original factory component
Features & Benefits - Bullet 4 : Offering the quality, reliability, and durability of GM OE
Features & Benefits - Bullet 5 : Manufactured to GM OE specification for fit, form, and function
Frame Included : Yes
Good Maintenance Practices - Section 1 - Bullet 1 : Replace coolant with a mixture of antifreeze and water according to the owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2 : Evaluate radiator and radiator cap for leaks, corrosion, or worn cap gasket. Make sure to pressure test the cap.
Good Maintenance Practices - Section 1 - Bullet 3 : Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating.
Good Maintenance Practices - Section 1 - Bullet 4 : Periodically, remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency.
Good Maintenance Practices - Section 1 - Header : Maintain proper coolant levels and check levels regularly. Also make sure to check coolants concentration because the water ratio can affect the freezing or boiling point. (Note: Never attempt to remove a surge or radiator cap while the engine is hot. Serious injury could result.)
Inlet Diameter : 1.41
Inlet Diameter : 35.83
Inlet Header Length : 16.04
Inlet Header Length : 407.52
Inlet Header Width : 1.84
Inlet Header Width : 46.75
Inlet Location : Upper Left
Outlet Diameter : 1.41
Outlet Diameter : 35.83
Outlet Header Length : 16.04
Outlet Header Length : 407.53
Outlet Header Width : 1.84
Outlet Header Width : 46.8
Outlet Location : Lower Right
Product Description : ACDelco GM Original Equipment Radiators are GM-recommended replacements for your vehicles original components. Radiators are heat exchangers, typically located in the front of the vehicle where air can flow through the fins and dissipate heat. Modern radiators are made from aluminum and plastic, while older vehicles used copper and brass. These radiators are designed to be corrosion resistant with optimal heat transfer characteristics. These original equipment radiators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. âš WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Programming Required : No
Tank Material : Plastic
Transmission Oil Cooler Included : No - Part TypeRadiator
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2023 | Buick | Encore GX | Essence (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2023 | Buick | Encore GX | Preferred (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2023 | Buick | Encore GX | Select (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2023 | Chevrolet | Trailblazer | LS (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2023 | Chevrolet | Trailblazer | LT (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2022 | Chevrolet | Trailblazer | LT (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2022 | Chevrolet | Trailblazer | LS (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2022 | Buick | Encore GX | Essence (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2022 | Buick | Encore GX | Preferred (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2022 | Buick | Encore GX | Select (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2021 | Buick | Encore GX | Essence (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2021 | Buick | Encore GX | Preferred (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2021 | Buick | Encore GX | Select (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2021 | Chevrolet | Trailblazer | LT (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2021 | Chevrolet | Trailblazer | L (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2021 | Chevrolet | Trailblazer | LS (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2020 | Buick | Encore GX | Essence (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2020 | Buick | Encore GX | Preferred (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
| 2020 | Buick | Encore GX | Select (1.2 L3 GAS) | Engine: LIH, VIN: 2 |
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.
