Suitable for example:
for several tractor-style riding mowers manufactured by Husqvarna, including Craftsman, Flymo, HOP, Husqvarna, Jonsered, Lazer, McCulloch, Partner, Poulan, Rally, Wizard, etc.
Drive belt tensioner
eg in models (model, PNC); 964778400, 964777800, 960610360, 960610277, 960160012, 960110265, 960110264, 954170080, 9541700-80, 964-77-84-00, 964-77-78-00, 917.28031
(outer diameter 91 mm, central hole 9.7 mm, tightens the strap from the inside)
Replace the original numbers:
Husqvarna 5321392-45, 5321277-83, 532139245, 532127783, Rally 139245, 127783, 123766X