LATE 1940s/50s RADIATOR PRESSURE CAP. AC # RB-5 - J2
- Condition : New
- Dispatch : 2 Days
- Brand : AC DELCO
- ID# : 230450076
- Quantity : 1 item
- Views : 28
- Location : United Kingdom
- Seller : 1301martinp (+1)
- MPN : RB-5
- Start : Fri 06 Jun 2025 12:56:01 (EDT)
- Close : Run Until Sold
- Remain : Run Until Sold


Shipping Calculator
Seller's Description
Late 1940s / 1950s circular type radiator pressure cap. Made by AC. Part No. RB-5 J2. This variant of the standard RB-5 / 850573 has an additional (2BA, at a glance) stud soldered to the lower inside centre - see pics. I suspect for some less common, special application? I can't imagine why this stud could not be unsoldered, changing this cap back to a standard RB-5. Either way its release pressure is 4 lb.
It's been unboxed for years, knocked around in an autojumble tray then retired to my garage loft so its appearance has suffered and you would need to fabricate a gasket to go between it and the radiator. Still, not bad and offered at a price way below those on the other platform.
I do not have application data on the RB-5 or this RB-5 plus stud though I do believe Jaguar XK 120 and 140 models used the standard form.
Listing Information
Listing Type | Gallery Listing |
Listing ID# | 230450076 |
Start Time | Fri 06 Jun 2025 12:56:01 (EDT) |
Close Time | Run Until Sold |
Starting Bid | Fixed Price (no bidding) |
Item Condition | New |
Bids | 0 |
Views | 28 |
Dispatch Time | 2 Days |
Quantity | 1 |
Location | United Kingdom |
Auto Extend | No |
Seller Recent Feedback
Returns Policy
Within 21 days: if item description is incorrect or item is faulty I pay return postage. If item is simply not wanted then buyer pays return postage and refund is for item only, not outward postage and additionally is upon safe reciept, in the same condition as sent.