Transmission cooler/power steering O-ring help
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Registered User
Joined: Dec 2023
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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
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
Legend
Joined: Feb 2005
Posts: 8,058
Likes: 184
From: Fort Worth, TX
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
https://www.allorings.com/O-Ring-AS5...ard-Size-Chart
Registered User
Joined: Dec 2023
Posts: 1
Likes: 0
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
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
