Zetec lightweight aluminum underdrive bottom pulley.
For use on Silver Top, Black Top and ST170 engines.
Improves engine acceleration.
This pulley weighs 0.43 kg & 115mm in diameter.
Std item weighs 1.43 kg & 132mm in diameter.
Anodized in a grey finish.
Helps combat water cavitation in high revving engines by reducing water pump speed by 13%.
If using the front plastic timing cover requires trimming.
Also requires a shorter belt availble here
Weight | 0.5 kg |
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