Reviews of AISIN parts For Business

I’m going to buy the aisin kit from rock auto.

Parts quality is very important. The only aftermarket kit that is decent is Aisin

Re the timing belt, if that has not been done I would get to that immediately. At 350K km it is a ticking time bomb. Use, specify, or supply the Aisin TKH-002 timing belt kit. It is OEM quality

I’ve used dozens of the Aisin TKH002 kits- they come with koyo bearings, a decent tensioner, and a Mitsuboshi timing belt, all very similar to the oem Honda parts. I think the only major difference is the Honda water pumps are usually made by Yamada and the aisin ones are made by aisin… I can’t say I’ve ever had failures with them

I'd swap them out for multi-layer steel gaskets and new head bolts. Given the engine is in good order and hasn't had a gasket failure yet I'd say you'd be fine skipping the head decking and just install the new gaskets after a good cleaning.

Aisin timing belt kit is a few hundred bucks and very nice quality parts.

Aisin is the maker of Toyota water pumps.

I have only got my AISIN water pumps when ordering timbing belt replacement kits which include a new water pump, but they always came with a quality seal for the pump.

The fel pro gasket set and head bolts + head bolt tool will be close to 300 and then you'll need RTV sealant. Another probably 200 for the Aisin water pump.

The Aisin kits are fine. I would not use a gates kit; the water pumps are junk and so are the tensioners