Drivetrain› Automatic Transmissions and Components

Circle D

GM-PRO-SERIES-8L90 Torque Converter

$2,249.00

SKU: GM-PRO-SERIES-8L90-TORQUE-CONVERTER-2019-L84

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Circle D GM-PRO-SERIES-8L90-TORQUE-CONVERTER is a performance torque converter designed for 2019+ GM L84 engines. It features furnace brazed construction, hand TIG welded turbine hubs, and Torrington bearings for enhanced durability.

This torque converter also includes a billet front and billet piston, along with a flanged impeller hub for anti-flex strength. Each unit is hand-assembled to exacting tolerances to ensure quality and performance.
Show original supplier description
The Circle D GM-PRO-SERIES-8L90-TORQUE-CONVERTER is a custom-manufactured performance torque converter engineered for 2019+ GM L84 engine applications. Construction features include furnace brazed components, a hand TIG welded turbine hub, and Torrington bearings for superior reliability and performance. The converter also boasts a billet front and billet piston, combined with a flanged impeller hub for exceptional anti-flex durability. Each unit undergoes meticulous hand assembly to precise tolerances. The Vehicle Applications list includes specific fitments for: * 2021+ Cadillac Escalade with GM 10-Speed Automatic (MQC) * 2021+ Chevrolet Suburban with GM 10-Speed Automatic (MQC) * 2021+ Chevrolet Tahoe with GM 10-Speed Automatic (MQC) * 2019+ Chevrolet Silverado 1500 with GM 8-Speed Automatic (MQ3) * 2019+ GMC Sierra 1500 with GM 8-Speed Automatic (MQ3) * 2021+ GMC Yukon with GM 10-Speed Automatic (MQC) * 2021+ GMC Yukon XL with GM 10-Speed Automatic (MQC) This torque converter is available in various configurations, including options for Naturally Aspirated, Positive Displacement Supercharger, Turbo & Twin Turbo, and Centrifugal Supercharger applications, with a wide range of stall speed options from 2800-3000 RPM up to 4800-5000 RPM.

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 D
Part NumberGM-PRO-SERIES-8L90-TORQUE-CONVERTER-2019-L84
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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