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Hays

Hays Pilot Bearing - Roller Type

Part # 50379

For LS/LT engines using a Large Outer Pilot Bearing

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Hays Pilot Bearing - Roller Type

Estimated Ship Date: 07/29/2026
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$32.54
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This Hays Roller Pilot Bearing is an easy to install upgrade or replacement for LS or Gen V LT engine with a TKO or TKX transmission. Roller pilot bearings reduce parasitic drag that can cause transmission wear and hard shifting. Pre-greased and ready for installation.

Features:

  • Large outer pilot bearing commonly used for LS and Gen V LT engines with TKO/TKX transmission swaps
  • Double sealed bearing can be installed in either direction
  • Roller bearing design for improved transmission alignment and shifting
  • Pre-greased and ready to install

About Hays

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Brand Hays
CategoryTransmission
Depth (in).700
Emission Code5
EngineGM Gen III/IV (LS)
Engine MakeGM
Inside Diameter (in).600
Outside Diameter (in)1.705
Part TypeClutch Pilot Bearing
Product TypePilot Bearings/Bushings
Sub CategoryBearings
UPC090127127032
Part Number50379
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - lsandltpilotbearingmeasurement.pdf
Drive the bearing flush with the crankshaft outer flange. Do not force the install, once installed the bearing should turn smoothly. IMPORTANT NOTE: many GM LS engines use a press-in oil plug deep inside the crankshaft flange. DO NOT move or disturb this plug when removing or installing a pilot bearing. Your old pilot bearing must be removed by means of a mechanical pilot bearing puller. DO NOT attempt to use a "hydraulic" method to push-out or remove your old pilot bearing!
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Hays
Pilot Bearing - Roller Type
For LS/LT engines using a Large Outer Pilot Bearing
Part# 50379
$32.54

*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.