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Engine Cover - Why Not?

morsk

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I was watching an older Car Care Nut video on our T24A-FTS engine, and he mentions that the engine cover for the T24A-FTS engine in other Toyota/Lexus models serves as an air channel to cool the turbo in the back (03:04 - 04:10 timestamp).

I thought this was an interesting design and was curious as to why Toyota decided not to give us engine covers on the 4Runners. Thoughts?

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NotApplicable

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Just a guess but my thought would be that our engine sits longitudinal instead of transverse so the airflow required is different.
Exactly. Beyond orientation, the cooling systems are different. I think the longitudinal and transverse versions only share like 60% of parts or something.
 
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morsk

morsk

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Just a guess but my thought would be that our engine sits longitudinal instead of transverse so the airflow required is different.
Exactly. Beyond orientation, the cooling systems are different. I think the longitudinal and transverse versions only share like 60% of parts or something.
Thanks! Makes a lot of sense. Something I didn't think about...

A tangential question, if you know the answer: The label/sticker on my engine reads: "T24A-G21." Is the "G21" in reference to the transverse version of the T24A-FTS family? Always wondered what this actually indicated.
 

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Yes, why not! No reason other than cool.
2025 2026 4runner 6th gen Engine Cover - Why Not? 20260814_150750
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