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CHAIN
The 1991 Lexus ls400 has a timing belt.
Timing belt.
There is a timing belt on the Lexus ES300 2003.
timing belt
Definitely a timing chain.
No, it has a timing chain.
Belt.
No it does not have time to chain it has a timing belt
The 3.5 liter V6 engine in a 2007 Lexus RX350 has a timing CHAIN
3.3L V6 use timing belt.
if by "belt or chain" you're trying to ask if they have a timing belt or timing chain, the answer is timing belt