Mishimoto 2020+ Chevrolet / GMC Duramax L5P 6.6L Transmission Cooler
US Warehouse Stock - Qty: 9
The factory transmission cooling on the 2020+ Chevrolet and GMC Duramax L5P 6.6L is sized for stock duty, and fluid temperatures climb fast under the sustained load of towing and heavy hauling. Heat is what wears a transmission out. The Mishimoto Transmission Cooler attacks the problem with raw capacity: a tube-and-fin core with a 245% increase in core volume over stock, giving the system far more headroom to keep fluid temperatures in a safe range when the truck is working hardest.----The core also adds a 137% increase in frontal area, putting more of the cooler directly in the incoming airstream, and a 173% increase in external fin area to move heat from the fluid into the air more efficiently. All-aluminum construction handles the thermal demands of stock and modified Duramax trucks alike, and the cooler retains the factory transmission line connections for a clean, complete upgrade with no additional adapters or plumbing.----Direct fit for the 2020+ Chevrolet and GMC Duramax L5P 6.6L. No drilling, cutting, or modification required. Backed by the Mishimoto Lifetime Warranty.
Installation InstructionsThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2026 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2026 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2026 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2026 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2026 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2026 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2020-2026 | Chevrolet | Silverado 3500 HD | High Country |
| 2020-2026 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2026 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2026 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2026 | GMC | Sierra 2500 HD | AT4 |
| 2024-2026 | GMC | Sierra 2500 HD | AT4X |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2026 | GMC | Sierra 2500 HD | Denali |
| 2024-2026 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2026 | GMC | Sierra 2500 HD | Pro |
| 2020-2026 | GMC | Sierra 2500 HD | SLE |
| 2020-2026 | GMC | Sierra 2500 HD | SLT |
| 2020-2026 | GMC | Sierra 3500 HD | AT4 |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2026 | GMC | Sierra 3500 HD | Denali |
| 2024-2026 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2026 | GMC | Sierra 3500 HD | Pro |
| 2020-2026 | GMC | Sierra 3500 HD | SLE |
| 2020-2026 | GMC | Sierra 3500 HD | SLT |
Delivery time breakdown, depending on where this item is available.
Laval Location: Typically ready to ship within 24 to 48 hours.
_______________________________
Canadian Warehouse: Typically ready to ship within 2 to 4 business days.
_______________________________
Manufacturer Stock: We have transfers coming from the US Manufacturer warehouses every 3 weeks. Canadian customers can expect a delivery time of approximately 3 to 4 weeks from the date your order is placed, to the day the order will be delivered to your door.
For US and/or International customers, this item can be dropship from the manufacturer straight to your door.
_______________________________
US Warehouse Stock: We have transfers coming from this US warehouse into Canada every 3 weeks. Canadian customers can expect a delivery time of approximately 3 to 4 weeks from the date your order is placed, to the day the order will be delivered to your door.
For US and/or International customers, this item can be dropshipped from this warehouse straight to your door.
_______________________________
US Shipping Warehouse: This warehouse is only for shipping to our US customers, which means this item can dropship from this warehouse straight to your door.
_______________________________
Out of Stock (Contact us to check availability): This means we either do not have live inventory for this manufacturer, this item is a special order from the manufacturer, or this can also mean that the product is on backorder at the manufacturer. If you would like a more precise ETA, please contact our sales team prior to placing your order.
_______________________________
*** PLEASE NOTE: All Shipping and Delivery dates are estimated and can change at any time. We try our best to be as precise as possible, however, unforseen delays are completely out of our control.
Shipping
OverDosed Performance reserves the right to use any shipping method available. Shipping time estimates are for reference only. We set no "exact or specific" dates and or times. Unfortunately, delays do happen from time to time. We try our best to be as accurate as possible on delivery times, however, it's sometimes impossible to predict some delays beforehand. Some items may be out of stock or on backorder, so we kindly ask you to be patient. OverDosed Performance is not to be held liable for any delays due to the early or lateness of a product´s arrival. All orders ship via ground shipping, either using Canpar, Dicom, Purolator, UPS or FedEx. International orders are shipped via Air.
Cancellations
If you place an order and decide you want to cancel it within 24 hours, even if it's just a few minutes after the order is placed, you will be charged a 3% cancellation fee. NO EXCEPTIONS. Every cancellation is done only at OverDosed Performance discretion. Some special order items can not be cancelled. To ensure rapid service, all of our products are processed once we received payment. If you wish to cancel, we strongly urge you to contact our staff within 24 hours. A 3% cancellation fee will be charged. All cancellation orders after a 24hr period will be accessed a 5% cancellation fee. (This only applies to orders that are not already in transfer to our Canadian warehouse.) If the items you order were a special order and are already in transfer to our Canadian warehouse, then there will be a 20% restocking fee. NO EXCEPTIONS.
Returns
If you want to return or exchange a product that you ordered, you will need to contact OverDosed Performance first before sending the product back to us. OverDosed Performance must approve all returned items and will ask to please fill out our Return Form. Sending back a product without a Return Form will be refused. All Items must be in their original package and in "new/resalable" condition. For wheels, we can only accept a return if the wheels have NOT had any tires mounted/installed and are still brand new in the original boxes with all the original packaging. All Approved returns will be credited for "store credit only" NO EXCEPTIONS! Store Credit must be used within 14 Days of item´s return, or the credit will be lost! A 20% restocking fee will apply to all approved returned orders. OverDosed Performance is not responsible for shipping charges when returning a product.