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What is this component? The big bolt is about 1 1/4 inches and holds down an aluminum cap. It is on the drivers side of the engine on the opposite side of the engine mount of the oil filter. Kinda looks like an alternate oil filter location. Its leaking oil but I dont want to take it off until I know whats on the other side. Its in an 88 4runner.
Last edited by offroadnutz; May 24, 2016 at 12:15 PM.
The large one 90301-68004 is about $4 at the dealer, the smaller one 90430-20012 is about $1.60-$2.00. I'm sure you can use an ordinary o-ring if you can find the right size, but for $4 there's no point driving all over the place.