Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
![PT4004L8LSMD Pro Thruster Series Torque Converter, GM LS w/4L80/4L85E Trans, 9.50 in. Diameter, 4000 RPM Stall [Lockup]](https://www.jegs.com/images/mini_750/0/056/056-pt4004l8lsmd.jpg)
Vehicle Info NeededYANK PERFORMANCE CONVERTERSPART NUMBER: 056-PT4004L8LSMD
PT4004L8LSMD Pro Thruster Series Torque Converter, GM LS w/4L80/4L85E Trans, 9.50 in. Diameter, 4000 RPM Stall [Lockup]
$1,48900
Ships on 10/02/2026
Lowest Price GuaranteeGM LS Engine
4L80/4L85E Transmission
4L80/4L85E Transmission
Pro Thruster Series Torque ConverterGM LS Engine w/4L80/4L85E Transmission 9.50 in. Diameter 4000 RPM Stall Multi-Disk Lockup Billet 650 RWHP Rated
Yank Performance Converters PT4004L8LSMD Features:
The Pro Thruster Series is the ultimate N/A converter that loves big camshafts and RPM. These converters feature a 9.50 in. billet cover with billet lockup clutch.
- One-piece roller burnished hub
- New torrington bearings
- Fully furnace brazed pump and impeller
- Hardened splines
Part TypeAutomatic Transmission Torque Converter
BrandYANK PERFORMANCE CONVERTERS
Package Height8.0
Package Width13.0
Package Length13.0
Weight47.0 PG
Part CategoryPerformance Parts
Stall Speed Rpm4000
Lock Up TypeYes
QuantitySold Individually
MaterialBillet
Transmission Manufacturer Code4L80/4L85E
Part FitmentSemi Universal
Maximum Horsepower650
Grade TypePerformance
Diameter9.50 in.
Vendor Part NumberPT4004L8LSMD
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Quick Shift Automatic Transmission Fluid [1-gallon]](https://www.jegs.com/images/mini_200/500/555/555-28071.jpg)
JEGS
Quick Shift Automatic Transmission Fluid [1-gallon]
Part Number : 555-28071
$4499$51.99
You Save$7.00
JEGS
Low-Profile Transmission Jack 1000 lb. Capacity
Part Number : 555-79012
$20499$221.39
You Save$16.40
![Transmission Teardown Work Station [1/2-Ton Capacity]](https://www.jegs.com/images/mini_200/500/555/555-81432.jpg)
JEGS
Transmission Teardown Work Station [1/2-Ton Capacity]
Part Number : 555-81432
$49999$574.99
You Save$75.00
![Quick Shift Automatic Transmission Fluid [1-quart]](https://www.jegs.com/images/mini_200/500/555/555-28070.jpg)
JEGS
Quick Shift Automatic Transmission Fluid [1-quart]
Part Number : 555-28070
$1099$12.99
You Save$2.00
![2-Ton Low-Profile Aluminum Floor Jack [4,000 lbs. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-80006.jpg)
JEGS
2-Ton Low-Profile Aluminum Floor Jack [4,000 lbs. Capacity]
Part Number : 555-80006
$20999$269.99
You Save$60.00
JEGS
1/2 in. Drive Digital Torque Wrench for Fastener Tightening and Disassembly Torque Detection
Part Number : 555-81694
$17599
![Fender Cover with Pocket [23 in. W x 31 1/2 in. L]](https://www.jegs.com/images/mini_200/500/555/555-65010.jpg)
JEGS
Fender Cover with Pocket [23 in. W x 31 1/2 in. L]
Part Number : 555-65010
$1499$16.99
You Save$2.00
![Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-81156.jpg)
JEGS
Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]
Part Number : 555-81156
$9099$111.99
You Save$21.00
JEGS
Transmission Guide Dowels 3" Long with Tapered Shape & Slotted Head
Part Number : 555-22010
$1499$16.19
You Save$1.20
![Wheel Chock [Solid Rubber]](https://www.jegs.com/images/mini_200/500/555/555-w41001.jpg)
![Funnel [18 in. Overall Length]](https://www.jegs.com/images/mini_200/500/555/555-w4034.jpg)
![Heavy-Duty Nitrile Gloves [7 mils Thick, Large]](https://www.jegs.com/images/mini_200/500/555/555-1124.jpg)
![Drain Pan [7 Quart]](https://www.jegs.com/images/mini_200/500/555/555-w4070.jpg)
JEGS
Part Number : 555-28071
$4499$51.99
You Save$7.00
JEGS
Part Number : 555-79012
$20499$221.39
You Save$16.40
Some parts are not legal for use in California or other states with similar laws / regulations
