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Q: Radiator Replacement for 1999 Lumina LTZ on 1999 Chevrolet Lumina

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I have seen two radiators for the 1999 Chevy Lumina LTZ. One is 5/8ths inches thick and the other is 1 inch thick. Which one should I purchase?
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The 1 inch thick radiator is for vehicles with heavy duty cooling - option code "V08". The white option code label should be found on the spare tire cover in the trunk or on the trunk lid. Look at the label for "V08" If the label shows 'V08" then your Lumina has heavy duty cooling and the 1 inch radiator is required. If the label does not show "V08" then you have the standard cooling system and the 5/8 inch radiator should be fine. If you have not had overheating problems in the past I would see no reason to move up to the 1 inch radiator if your car only needs the 5/8 inch size.
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