Underdrive Pulley
(4" Triple Groove)
Underdrive pulleys are an excellent addition for just about any high RPM performance application. The lightweight of these billet aluminum pulleys will reduce the drag on your engine, while the underdrive design will allow your engine to turn your front belt accessories with less effort. All this means you gain performance and a cleaner looking engine compartment. Another added benefit is the built-in degree wheel on the front of the pulley that will allow you to dial in your top dead center point much more accurately. The stock harmonic damper is steel, weighs in at 5 pounds and over 6" in diameter we shave off a full 2" in diameter and cut the weight down to 1.5 pounds by using American T-6 6061 billet aluminum.
High RPM race engines often overdrive the water pump making the engine's cooling system inefficient. These Crankshaft Power Pulleys reduce water pump and alternator RPM providing better cooling and less power loss. Each 4" diameter Crankshaft Power Pulley is made from 6061 T-6 aluminum and is then hard anodized for extra strength with laser-etched markings for long life.
Recommended Additional Parts:
- For Crankshaft Oil Seal, see Part #: 1015042.
- Should be used with our Adjustable Timing Tag, see Part #: 1016117.
There are three pulleys to choose from:
- Single groove: would be a race application only running an alternator. With no power steering or other belt-driven accessories.
- Double groove would be used with an alternator and A/C or custom belt accessory and no power steering. For double groove applications, see Part #: 1016104.
- Triple-groove pulley would be used for running alternator A/C and power steering. For triple groove applications, see Part #: 1016105.
- For Complete Underdrive Kits, see Part #:'s 1016120, 1016123 and 1016124.
NOTES: Not recommended for street driven vehicles or rock crawlers.
| Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501. |
- 1975-1980 20R 2.2L Engines
- 1981-1995 22R 2.4L Engines
- 1983-1995 22RE 2.4L Engines
- 1985-1988 22RET 2.4L Engines
To open a printable PDF version of this instruction CLICK HERE
LC Engineering strongly recommends that you review a factory service manual, our call our tech line 928-855-6341 if you have questions during installation.
LC Engineering's 4 inch underdrive crankshaft pulley will install just like the stock Pulley. What will need to be done is the timing tag on the oil pump will need to be trimmed off for added belt clearance. That's why it is recommend to run the LCE adjustable timing tag, Part# 1016117. The front crankshaft oil pump seal rides on the pulley. So it is also recommended to install a new crankshaft oil pump seal when installing the new pulley. Apply motor oil on the seal and seal surface when reinstalling the new pulley. Be sure the crankshaft key is in place and in good condition when reinstalling. Torque front bolt to 80 Ft Lbs.
9 Reviews Hide Reviews Show Reviews
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Mike Linder give 5 stars
All of my LC Engineering purchases have performed flawlessly, that is why I keep coming back for more.
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Best quality
LCE the best for Toyota. . You guys should address pointer for the timing mark
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Toyota build
The parts I got look good. my project dead line is for the end of the month. I still need to buy the last parts I had to buy everything little by little because of cash but I will let you know how my project is coming together if you like more feed back on your parts Thank
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Billet pulley
Great product! Typical LCE quality!
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Thank you
Fits perfect
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Pulleys
Went in easy one thing to remind people stock belts don't all work. Just one of thing to thing about
