No. Over the years, being a mechanic, I've tried every imaginable attempt at repairing the plastic and nothing has held. REPLACE THE RADIATOR. Usually radiator shops have the best prices.
Replace the radiator
The plastic tank on the side of the radiator can be replaced but it would be quicker and cheaper to just install a new radiator.
how to repair 1999 Toyota Camry radiator hose upper connection pipe
Follow the upper radiator hose all the way to the block. It is under the cast nipple mounted to the engine.
The radiator is located beneathe a plastic cover in front of the engine, between the headlight housings. Follow the upper radiator hose to locate it.
It is under the plastic housing that the upper radiator hose hooks to on the engine.
This is one of the simplest jobs you can do on an Accord. You will need a 10mm box-end wrench and a jug of Honda Genuine coolant - accept no substitutes.Turn your heater controls to the full-on setting and pop the hood. Find the upper radiator hose and trace it back to the engine. On the place where it goes in (the thermostat housing) you will find a bleeder nipple. Take the radiator cap off, open the nipple and start pouring coolant into the radiator until a steady stream of fluid comes out of the nipple. Then close it quick, make sure the radiator is full, and put the radiator cap back on.
Assuming a 3.1 engine : Remove the air filter plenum at the throttle body. Under the TB is the upper radiator hose nipple. Remove the radiator hose . Remove the nipple, access the T-stat. Make sure you use a new gasket. reverse procedure to put the unit back together.
It is located in the plastic junction of the upper radiator hose to the left of the battery. The sensor is held into the plastic junction with a large horseshoe locking clip.
Under where the upper radiator hose hooks to the engine.Under where the upper radiator hose hooks to the engine.
At the engine end of the upper radiator hose.At the engine end of the upper radiator hose.
Under the housing where the upper radiator hose attaches.Under the housing where the upper radiator hose attaches.