What is compatible for a Buick LeSabre Limited in Motors

Which motor? Heater blower motor? Or do you mean engine? The engine is not a motor. Motors are electric.

Sorry i mean engine

You have a 3800 V6 and they are plentiful. The are bullet proof and seldom have problems. Just in your year alone, GM probably put 500,000 in Buick, Olds, Pontiac, and Chevy

You can get more detailed info by doing a online search........as noted above you have what is referred to as the Series II engine (L36) made from 1996-2005. If you stick to one close to the year of your car, there is less change some small change would have been made and that makes the exchange easier. There was no engine option on the LeSabre, both Custom and Limited used the same engine.

Will a 98 Buick LeSabre motor fit in a 03 Buick LeSabre