Dorman 918-645 Automatic Transmission Oil Cooler
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Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$0.00
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This automatic transmission oil cooler is designed to match the function of an original cooler on specified vehicles. It is engineered to help maintain proper engine oil temperature when an original cooler has failed from heat, corrosion, or damage.
- Direct replacement - this automatic transmission fluid cooler is designed to match the function of an original cooler on specified vehicle
- Ideal solution - engineered to help maintain proper transmission fluid temperature when an original cooler has failed from heat, corrosion or damage
- Durable construction - designed and manufactured to strict specifications for reliable performance
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2025 | Chevrolet | Cheyenne (Mexico) | Mexico Region | ||
| 2025 | Chevrolet | Silverado (Mexico) | V8 325 5.3L (5328cc); Mexico Region | Front | |
| 2025 | Chevrolet | Silverado 1500 | L6 183 3.0L (2993cc) | Front | |
| 2025 | Chevrolet | Silverado 1500 | V8 325 5.3L (5328cc) | Front | |
| 2025 | Chevrolet | Silverado 1500 | V8 376 6.2L (6162cc) | Front | |
| 2025 | GMC | Sierra (Mexico) | Mexico Region | ||
| 2025 | GMC | Sierra 1500 | L6 183 3.0L (2993cc) | Front | |
| 2025 | GMC | Sierra 1500 | V8 325 5.3L (5328cc) | ||
| 2025 | GMC | Sierra 1500 | V8 376 6.2L (6162cc) | ||
| 2024 | Chevrolet | Cheyenne (Mexico) | Mexico Region | ||
| 2024 | Chevrolet | Silverado 1500 | L6 183 3.0L (2993cc) | ||
| 2024 | Chevrolet | Silverado 1500 | V8 325 5.3L (5328cc) | ||
| 2024 | Chevrolet | Silverado 1500 | V8 376 6.2L (6162cc) | ||
| 2024 | GMC | Sierra (Mexico) | Mexico Region | ||
| 2024 | GMC | Sierra 1500 | L6 183 3.0L (2993cc) | Front | |
| 2024 | GMC | Sierra 1500 | V8 325 5.3L (5328cc) | ||
| 2024 | GMC | Sierra 1500 | V8 376 6.2L (6162cc) | ||
| 2023 | Chevrolet | Cheyenne (Mexico) | Mexico Region | ||
| 2023 | Chevrolet | Silverado 1500 | L6 183 3.0L (2993cc) | ||
| 2023 | Chevrolet | Silverado 1500 | V8 325 5.3L (5328cc) | ||
| 2023 | Chevrolet | Silverado 1500 | V8 376 6.2L (6162cc) | ||
| 2023 | GMC | Sierra (Mexico) | Mexico Region | ||
| 2023 | GMC | Sierra 1500 | L6 183 3.0L (2993cc) | Front | |
| 2023 | GMC | Sierra 1500 | V8 325 5.3L (5328cc) | ||
| 2023 | GMC | Sierra 1500 | V8 376 6.2L (6162cc) | ||
| 2022 | Chevrolet | Cheyenne (Mexico) | Mexico Region | ||
| 2022 | Chevrolet | Cheyenne Nueva (Mexico) | Mexico Region | ||
| 2022 | Chevrolet | Silverado 1500 | L6 183 3.0L (2993cc) | ||
| 2022 | Chevrolet | Silverado 1500 | V8 325 5.3L (5328cc) | ||
| 2022 | Chevrolet | Silverado 1500 | V8 376 6.2L (6162cc) | ||
| 2022 | Chevrolet | Silverado 1500 LTD | L6 183 3.0L (2993cc) | Front | |
| 2022 | Chevrolet | Silverado 1500 LTD | V8 325 5.3L (5328cc) | ||
| 2022 | Chevrolet | Silverado 1500 LTD | V8 376 6.2L (6162cc) | ||
| 2022 | Chevrolet | Silverado 1500 Nueva (Mexico) | V8 325 5.3L (5328cc) | ||
| 2022 | GMC | Sierra (Mexico) | Mexico Region | ||
| 2022 | GMC | Sierra 1500 | L6 183 3.0L (2993cc) | Front | |
| 2022 | GMC | Sierra 1500 | V8 325 5.3L (5328cc) | ||
| 2022 | GMC | Sierra 1500 | V8 376 6.2L (6162cc) | ||
| 2022 | GMC | Sierra 1500 Limited | L6 183 3.0L (2993cc) | Front | |
| 2022 | GMC | Sierra 1500 Limited | V8 325 5.3L (5328cc) | ||
| 2022 | GMC | Sierra 1500 Limited | V8 376 6.2L (6162cc) | ||
| 2022 | GMC | Sierra Nueva (Mexico) | |||
| 2021 | Chevrolet | Cheyenne (Mexico) | Mexico Region | ||
| 2021 | Chevrolet | Silverado 1500 | L6 183 3.0L (2993cc) | ||
| 2021 | Chevrolet | Silverado 1500 | V8 325 5.3L (5328cc) | ||
| 2021 | Chevrolet | Silverado 1500 | V8 376 6.2L (6162cc) | ||
| 2021 | GMC | Sierra (Mexico) | Mexico Region | ||
| 2021 | GMC | Sierra 1500 | L6 183 3.0L (2993cc) | Front | |
| 2021 | GMC | Sierra 1500 | V8 325 5.3L (5328cc) | ||
| 2021 | GMC | Sierra 1500 | V8 376 6.2L (6162cc) |
Product Specifications
| Cooling Row Quantity: | 8 |
|---|---|
| Core Material: | Aluminum |
| Core Row Quantity: | 8 |
| Depth: | 1 in |
| Electric Fan: | Yes |
| Finish: | Painted |
| Grade Type: | Standard Replacement |
| Height: | 13.00 in |
| Housing Color: | Black |
| Inlet Attachment Type: | Threaded |
| Inlet Diameter: | 0.74 in |
| Length: | 40 in |
| Line Included: | No |
| Material: | Aluminum |
| Mounting Hardware Included: | No |
| Outlet Attachment Type: | Threaded |
| Outlet Diameter: | 0.74 in |
| Package Contents: | 1 Automatic Transmission Oil Cooler |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Strap Width: | 0.125 in |
| Thickness: | 1 in |
| Tube Included: | No |
| Width: | 15.88 in |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 23409058 | GENERAL MOTORS |
| 84300079 | GENERAL MOTORS |