Drivetrain› Automatic Transmissions and Components

Circle

Pro Series Triple Disc Torque Converter

$1,499.99

SKU: CIR-05D-13-05-2DX

Special Order
Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Circle D Pro Series torque converter is a triple-disc converter with a 258mm diameter. It is designed for 4L80E transmissions and features a 3600 RPM stall speed.

Construction includes a billet front and billet piston, a flanged impeller hub for durability, and Torrington bearings. The converter is furnace brazed and hand TIG welded. Stall speeds are available from 2800 to 3700 RPM.
Show original supplier description
The Circle D Pro Series Triple Disc Torque Converter offers enhanced performance for 4L80E transmissions. This 258mm converter features a 3600 RPM stall speed, providing a significant upgrade for demanding applications. The triple-disc design ensures robust engagement and power transfer. The unit is furnace brazed and hand TIG welded, with the turbine hub meticulously TIG welded. Each converter is hand-assembled to exacting tolerances to ensure peak performance. Available in a range of stall speeds from 2800 to 3700 RPM, the Pro Series converter can be specified to match your vehicle's specific needs and power modifications. The converter diameter is 258mm, equivalent to 10 1/4 inches.

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

BrandCircle
Part NumberCIR-05D-13-05-2DX
CategoryDrivetrain
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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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