Hi there is no specified interval for replacement of timing chains only timing belts which in Toyotas are usually replaced every 150,000km. Timing chains are in internal to the engine and lubricated by engine oil and do not need regular replacement unless a fault occurs.
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in Toyota Prado Guides
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Hi there is no specified interval for replacement of timing chains only timing belts which in Toyotas are usually replaced every 150,000km. Timing chains are in internal to the engine and lubricated by engine oil and do not need regular replacement unless a fault occurs.