The timing belt tensioner is a load-bearing pulley located on an adjustable axle. Its main function is belt tension; additional functions are to damp drive vibrations and increase the angle of the camshaft pulley wrap.

1. HILUX V Pickup (_N_, KZN1_, VZN1_)
2. PICKUP V Pickup (_N_, KZN1_, VZN1_)
3. TACOMA V Pickup (_N_, KZN1_, VZN1_)
4. HILUX MIGHTY X V Pickup (_N_, KZN1_, VZN1_)
5. HIACE IV Bus (__H1_, __H2_)
6. TARO
7. HIACE IV Van (__H1_, __H2_)
8. HIACE SBV IV Van (__H1_, __H2_)
9. HILUX VI Pickup (_N1_)
10. TACOMA VI Pickup (_N1_)
11. HILUX MIGHTY X / HILUX TIGER VI Pickup (_N1_)
12. HIACE IV Bus (_H1_)
13. REGIUS IV Bus (_H1_)
14. HIACE IV MPV (_H1_)
15. DYNA IV Bus (_H1_)
16. HIACE / COMMUTER IV Bus (_H1_)
17. QUANTUM IV Bus (_H1_)
18. HIACE IV Van (_H1_)
19. DYNA Platform/Chassis (KD_, LY_, _Y2_, _U3_, _U4_)
20. DYNA 150 Platform/Chassis (LY_)
21. See more in applications

The operation of the timing belt tensioner

The SWAG brand Tensioner, timing belt is a bearing with a pulley on the outer cage. Depending on the design, the tensioning mechanism can be made in the form of an eccentric pressed into the inner bearing race, or placed on a separate bracket. The bearing cage is packed with grease and covered with a lip. You can order an automatic tensioner, it is a little more complicated, but the roller itself has no fundamental differences.

Timing belt tension is designed for a specific force and must be consistent. Selecting a timing belt tensioner pulley that is too loose can cause the belt to slip through the timing belt teeth. This is unacceptable, since it will lead to a shift in the phases of the valve operation relative to the movement of the pistons.