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Transmission cooler/power steering O-ring help

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Old Dec 14, 2023 | 07:43 AM
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Default Transmission cooler/power steering O-ring help

2001 dakota sport, ext cab, 3.9, rwd.

I need to replace the o-rings for the transmission cooler lines going into the radiator, they're old and leaking. I read on here that they're "#11 5/16 ID" but i need to know the o.d. The simple google search gives too much unreliable info. I also need the o ring sizes for the fittings going into the power steering pump, it's leaking at both pieces for the high pressure.

Tia
 
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Old Dec 18, 2023 | 09:50 PM
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Believe both will be the #11 - standard 7/16 x 5/16. But the power steering might be a #12 1/2 x 3/8. Not 100% sure off hand.

https://www.allorings.com/O-Ring-AS5...ard-Size-Chart
 
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Old Dec 18, 2023 | 10:39 PM
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Originally Posted by BoogerSchultze
2001 dakota sport, ext cab, 3.9, rwd.

I need to replace the o-rings for the transmission cooler lines going into the radiator, they're old and leaking. I read on here that they're "#11 5/16 ID" but i need to know the o.d. The simple google search gives too much unreliable info. I also need the o ring sizes for the fittings going into the power steering pump, it's leaking at both pieces for the high pressure.

Tia
For the transmission cooler lines going into the radiator, the #11 o-rings usually have an outer diameter (O.D.) of around 1/2 inch or roughly 0.5 inches.Regarding the power steering pump fittings. Typically, those o-rings could have an inner diameter (I.D.) of around 5/16 inch and an outer diameter (O.D.) of approximately 1/2 inch.
 
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