Replacement transmission oil cooler radiator hose sizes? (Discontinued Toyota Part) [2003 V6 5VZ-FE]

03 V6 AT

Replaced radiator a few days ago with a Denso one and the original transmission oil cooler hoses that plug onto the nipples on the radiator fit pretty loosely despite putting the hose clamp back into it's original indentation. I now have a slow transmission oil drip on the right side hose at the nipple.I believe the nipples on the Denso radiator are ever so slightly smaller than the OEM toyota radiator.

Looked up the part numbers on Toyota EPC:

90080-44057
32942-0C010

Both discontinued and not available for purchase. Has anyone replaced these hoses with generic auto parts store hose on their Tundra? What size worked for you?

Or possibly even thinking about pulling the line and throwing on a German Norma worm gear hose clamp instead of the original Toyota spring clamp.

 

I just used 3/8s fuel hose. Denso is the OEM for the 5vz. Good idea to replace that radiator every 10yrs to avoid the potential Pink Milkshake syndrome. Does it have the A340 trans? If so good trans that like a D/F every 25k or so with maxlife. Luck and enjoy.

 

Update: Bought a 2 foot length of generic Autozone 3/8ths transmission oil cooler hose and the hose walls were thinner than the original toyota hose by about 40% so the OEM clamps didn't fit on tight enough. I could easily twist and spin the hose around on the nipples with the clamp fully in place.

My norma german hose clamps were too large and I couldn't find a perfect fitting el cheapo worm gear hose clamp in my assortment of hose clamps. They all had a gap at the top where the worm gear was when fully tightened down and weren't perfectly circular so I didn't feel comfortable using those.

I put the old hose back on for now with the original clamps until I find a solution. I wonder what the dealership uses when you bring it in and tell them to replace them since the part is discontinued.

 

Yup, that's what I did. And yes, A340E.

Were you able to reuse the OEM spring hose clamps when you replaced your lines?

 

They seemed OK but I put new hardware there too just for grins. Also added a 3/8s magnefine yet I do not think its really necessary. The dealer probably uses something generic that works ok.