CorvetteForum - Chevrolet Corvette Forum Discussion

C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

85 ac oring p/n

Thread Tools
 
Search this Thread
 
Old Aug 17, 2025 | 09:55 PM
Share
  #1  
johnfin's Avatar
johnfin
Thread Starter
Drifting
10 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2012
Posts: 1,391
Likes: 73
Default 85 ac oring p/n
Need the oring pn for the hight side to the condenser. Not shown on the parts book.
Reply
0
Old Aug 17, 2025 | 10:49 PM
Share
  #2  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default
What ID is required? .426 would be a 3094214. That's a fairly common o-ring for a GM condenser of the times.
Reply
0
Old Aug 18, 2025 | 09:20 AM
Share
  #3  
Kilobuck84's Avatar
Kilobuck84
Drifting
Active Streak: 30 Days
Photogenic
Loved
Community Favorite
 
Joined: Nov 2021
Posts: 1,737
Likes: 386
From: People's Republic of Nueva York
Default
Anybody know what material the A/C O-rings are made of? I'm @$$uming viton....
Reply
0
Old Aug 18, 2025 | 05:58 PM
Share
  #4  
johnfin's Avatar
johnfin
Thread Starter
Drifting
10 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2012
Posts: 1,391
Likes: 73
Default
I measured the o-ring to condenser, its .290id. The one you mention is for the 1988 and newer c4s.
Reply
0
Old Aug 18, 2025 | 06:45 PM
Share
  #5  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default
Originally Posted by johnfin
I measured the o-ring to condenser, its .290id. The one you mention is for the 1988 and newer c4s.
Do you believe it to be the same as #17 in your image?
Reply
0
Old Aug 18, 2025 | 09:36 PM
Share
  #6  
johnfin's Avatar
johnfin
Thread Starter
Drifting
10 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2012
Posts: 1,391
Likes: 73
Default
Its not the same. Thats larger, the p/n you gave me.
Reply
0
Old Aug 18, 2025 | 10:24 PM
Share
  #7  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default
Originally Posted by johnfin
Its not the same. Thats larger, the p/n you gave me.
You're the guy that needs and I'm sure there are vendors that you could 'walk-in' and get an appropriate fit. I've never seen a GM A/C o-ring with the ID you mention measuring. If you measured the o-ring, what color was it? The more popular earlier/mid 80's would be a 3093111.
Reply
0
Old Aug 19, 2025 | 07:31 AM
Share
  #8  
johnfin's Avatar
johnfin
Thread Starter
Drifting
10 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2012
Posts: 1,391
Likes: 73
Default
Its black just like the number you provided. I believe thats the one, thanks.
Reply
0

Get notified of new replies

To 85 ac oring p/n

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Back to Subforum
C4 Tech/Performance
View Next Unread
Turn signal ground problem




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 01:48 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE