Sale

Drivetrain› Automatic Transmissions and Components

ACC Performance

Night Stalker Lock-Up Torque Converter RPM Stall 11.125"

$527.48 $458.68 Save $68.80

SKU: ATC49452

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 ACC Performance 49452 is a torque converter designed for performance applications. It features a Night Stalker series design and is a lock-up type.

This converter has a stall speed range of 2200-2800 RPM and a bolt circle of 11.125 inches. It is specifically designed for use with the 4L60E transmission.
Show original supplier description
The ACC Performance 49452, part of the Boss Hog Night Stalker line, is a high-performance torque converter engineered for demanding applications. This lock-up type converter offers a stall speed range of 2200-2800 RPM, providing increased engine RPM at the point of torque transfer for enhanced acceleration. Constructed with a focus on quality and reliability, the ATC49452 features an 11.125-inch bolt circle and is tailored for the 4L60E transmission. ACC Performance offers a complete line of converters for heavy-duty, street, and racing use, ensuring a product to meet specific needs. Each converter is meticulously inspected to guarantee the highest quality. They pride themselves on offering high-performance and specialty converters, with this Night Stalker model being suitable for various performance requirements.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandACC Performance
Part NumberATC49452
CategoryDrivetrain
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy