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Transmission Cooler Size for 2013 Toyota Sienna  

Question:

I have a 2013 Sienna. Is there a reason I would choose this smaller 8 row cooler vs the larger 17 row model? Lifted and AWD. used for camping, backloading and some towing. Thanks

1

Helpful Expert Reply:

When it comes to choosing a transmission cooler, you would ideally choose the largest cooler that will fit in the available space. Since the recommended spot to install the cooler is directly behind the grill in front of the radiator, you'll need to check that area and see how much room is available.

The larger # FLX400117 17-row transmission cooler would provide much more surface area for cooling, so that's what I'd recommend if you have the necessary room (11 x 6 inches) for it. You could use the smaller # FLX400008, if you wish but the larger cooler would be more effective for you.

I've linked an install video showing a similar cooler being installed on a 3rd gen Sienna like yours. The procedure shown would be very similar for the # FLX400117 cooler. I've also linked to some articles about transmission coolers that you might find helpful.

expert reply by:
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Mike L

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