Is Replacing the Radiator Considered a Major Overhaul?

1 Answers
DiViolet
07/30/25 10:37am
Replacing the radiator is not considered a major overhaul. Definition of a Major Overhaul in Automobiles: A major overhaul in automobiles refers to the comprehensive or near-comprehensive restoration of a vehicle's technical performance, conducted after a certain mileage or period of use for new cars or previously overhauled vehicles. This involves diagnosis, technical evaluation, and the repair or replacement of automotive components. Content of a Major Overhaul in Automobiles: Automobile major overhauls are primarily categorized into three types. The first is an engine overhaul, which involves replacing the main internal components of the engine. These include the crankshaft, pistons, connecting rods, cylinder liners, valve components, piston rings, piston connecting rods, valve seat rings, crankshaft connecting rods, timing belts (some vehicles use timing chains, which do not require replacement), engine overhaul kits (including all gaskets, oil seals, valve oil seals, cylinder head gaskets, oil pan gaskets, crankshaft front oil seals, but excluding the crankshaft rear oil seal), crankshaft rear oil seal, transmission front oil seal, cleaning the engine water passages, cleaning the radiator, and replacing the engine oil and filter. The second type is a transmission overhaul, which involves replacing the main internal components of the transmission, such as gears, gear oil pumps, bearings, seals, locking pins, etc. The third type is a frame overhaul, which is necessary only in cases of collision or long-term wear leading to fractures. This typically requires placing the vehicle on a frame alignment bench for frame correction.
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