Sealey-Belt-Guide-Roller-Adjuster-GM-V6-Sealey-VS1301-p-Suitable-for-adjusting-the-position-of-the-upper-&-lower-guide-rollers-on-the-Vauxhall-Opel-V6-Eco Tec-engine-Helps-ensure-that-the-timing-belt-is-taut-during-installation-&-to-assist-initial-belt-tension-Use-in-conjunction-with-VS130-setting-locking-kit-p-Sealey-VS1301-Belt-Guide-Roller-Adjuster-Gm-V6