Fluidyne

Extreme Duty Transmission Cooler

$674.00

SKU: RT-48-0309BP

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Fluidyne RT-48-0309BP is an extreme duty bar and plate transmission cooler engineered for 2003-2009 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L or 6.7L Cummins engine and either the 48RE or 68RFE automatic transmission. Constructed from aerospace-grade aluminum, the RT-48-0309BP is built for extreme-temperature durability. It is internally and externally TIG welded for superior leak resistance under pressure, and features a heat-wicking powder coating to further aid in shedding heat. The dual-pass design ensures fluid passes through the core twice, maximizing contact with cooling airflow and keeping transmission temperatures in check during demanding conditions. The cooler utilizes -8AN O-ring inlet and outlet fittings. It is important to verify that your truck is a 2003-2009 Ram 2500/3500 with either the 48RE or 68RFE transmission and that your transmission lines are compatible with -8AN O-ring fittings before ordering. Please note that this cooler generally cannot be expedited, and it is recommended to contact the seller to confirm lead time and shipping costs before placing an order to avoid a 20% cancellation fee on Randy's Transmission orders.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFluidyne
Part NumberRT-48-0309BP
CategoryHeating and Cooling

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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