Drivetrain› Automatic Transmissions and Components

Circle D Specialties

GM 258mm Pro Series 4L60 LS Torque Converter

$1,159.00

SKU: 01-12-05

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Circle D Specialties GM 258mm Pro Series 4L60 LS Torque Converter is designed for 4L60E, 4L65E, and 4L70E transmissions. It features a 258mm (10 1/4 inch) diameter and offers stall speeds ranging from 2800 to 3700 RPM.
Show original supplier description
The Circle D Specialties GM 258mm Pro Series 4L60 LS Torque Converter is engineered for enhanced performance and durability in 4L60E, 4L65E, and 4L70E transmissions. This converter features a 258mm (10 1/4 inch) diameter and offers a versatile stall speed range between 2800 and 3700 RPM, catering to various driving and performance needs. Construction highlights include a furnace-brazed impeller, a hand TIG welded turbine hub, and Torrington bearings for smooth operation and longevity. The billet front and billet piston components contribute to its robust build. Further enhancing its design is a deep groove ball bearing for extended clutch life and a flanged impeller hub that provides superior anti-flex durability. Each unit is hand-assembled to exacting tolerances, ensuring consistent quality and performance.

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 Specialties
Part Number01-12-05
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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