Toyota Echo Prius Yaris Scion xA xB Variable Valve Timing Solenoid - 1AZMX00166

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Vehicle Fit

This Variable Valve Timing solenoid is just what you need to get your vehicle running great again!


  • Brand New
  • Replaces dealer part numbers: 15330-21011, 1533021011
  • Direct replacement
  • Correct electrical connection
  • Factory tested
  • Built to strict quality control standards

The Variable Valve Timing system is designed to increase engine output at a certain RPM / load range while maintaining fuel efficiency. This is accomplished by retarding exhaust valve closure. The PCM uses values from the throttle position sensor (TPS) & MAP sensor along with RPM to determine when to activate the system.

The Variable Valve Timing Solenoid is a key part in this system. It controls the oil pressure which engages an actuator to activate the cam timing change. A failure of this part will result in a complete failure of the VVT system.

Our electrical and electronic parts are subject to strict quality testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

5.00/ 5.0
4 reviews
5 Stars
4 Stars
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1 Star
Toyota Prius parts
I ordered a Prius Solenoid and had it overnighted . It arrived the next day early. The part was exactly lie the one we replaced and it is working great. We used the Chat room to get the correct part. I will continue ordering from you when parts are needed Thank You Ron Boss
July 18, 2018
Cam shaft pressure sensor
camshaft pressure release valve was easy to find when I looked it up on A1 Auto it was easy to order and they had it to me within a week perfect customer service the part works great I dont have issues with it and my car is like new again engine light is off and it was easy to install I give a 5-star for outstanding performance
January 9, 2019
Timming solenoid
Great product great price
June 28, 2019
Muy bueno
Mejor que lo que esperaba
August 9, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
How to install?
Brian M December 18, 2015
Hello, These parts can be tricky to install. We do recommend professional installation. We do not have any installation guides or instructions due to level of replacement.
Brian F December 28, 2015
Check YouTube. Its very simple to install. First unplug the wire connector, unscrew the one bolt, twist and pull the old one upwards with a pliers to remove it.
Mcvaughn O June 27, 2017
First disconnect negative cable from the battery then remove parts that are in the way un hook adaptation connecters and then unbolt the bracket for the solenoid after that you wanna wiggle it and pull genital as you slowly wiggle it should come right out to put the new one in simply line it up turn a quater inch and slowly turn to align the braket as you slide it in make sure its flush then bolt away check engine light may come on till it wares in
J A November 24, 2018
Go to utube for good video Not hard job Front easy Rear vac hoses need to be moved and small nut can fall into engine bay
Fred M November 3, 2019
Year Make Model Description
2004-2006Scion xA Scion xA L4 1.5L Variable Valve Timing Solenoid
2004-2006Scion xB Scion xB L4 1.5L Variable Valve Timing Solenoid
2000-2005Toyota Echo Toyota Echo L4 1.5L Variable Valve Timing Solenoid
2001-2009Toyota Prius Toyota Prius L4 1.5L Variable Valve Timing Solenoid
2007-2016Toyota Yaris Toyota Yaris L4 1.5L Variable Valve Timing Solenoid
Part 1AZMX00166
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