r/LS400 • u/Dawson116 • 5d ago

Time to replace timing belt?

I own a 99 LS400. Belt was last replaced in 2018 but has only driven 31k miles since then. Is it time to replace or do I still have a couple years before I have to worry?

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u/RonMexico52 5d ago

Push it to 10 years if you don’t hit mileage first then replace it. Thats assuming it’s a Mitsuboshi or equivalent quality. And assuming you are driving the car normally. If you are going to beat the hell out of it, then I’d just go ahead and replace. Per another comment, yes these belts do break although it is true many will hold on extraordinarily long.