Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Unknown part

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Old Feb 25, 2026 | 05:06 AM
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Default Unknown part

Hi there, I recently bought my 1998 Cl with the 2.3. While replacing the radiator I came across this part that looks to have had a hose connected, as evidenced by the witness mark. What is this part?
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Old Feb 25, 2026 | 08:26 AM
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Default Re: Unknown part

That is the MT transmission vent tube. The breather cap is missing. Part number 21396-P20-000




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Old Feb 26, 2026 | 09:13 AM
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Default Re: Unknown part

Good to know. Thanks.
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