If there is no pressure in the cooling system, the coolant will boil off. Gates Radiator Cap 13 psi (SAE Range 12-16 psi) $6.99 (1) Ships Today Lowest Price Guarantee. The Function of Radiator Pressure Caps: Most radiator pressure caps keep the system pressure at 16 PSI so the engine coolant can get considerably hotter without the fear that it will boil off. $13.99 Reviews. You have a stock radiator do not run higher then a 7lb cap on it. Atmospheric 15 PSI (103 kPa) % E.G. The new cap is 18 PSI (RC87 - part number 25713160), the old one for many vehicles was 15 PSI (RC75 - part number 10296465). F B.P. Every PSI increases boiling point 3 degrees. I went to Napa Autozone and Pep Boys and they all said that this car is supposed to use a 16 PSI cap. I am a pureist. It sits on Tuesday and the shop swaps out a new radiator cap, 18 psi. I believe for a 383 2 barrel a 16 lb is the standard. B.P. A 20 lb cap will bring the boiling temperature of your coolant (water) to about 255 degrees. Part Number: MRG-2470S GM has changed the part number for the radiator surge tank cap on vehicles that came from the factory with Dex-Cool. Always use a cap of the correct pressure for your cooling system. In-Store. Not Available. This Stant 10231 Radiator cap 16 PSI with a Vented in case of over presser. C B.P. Stant 10227 Radiator Cap - 13 PSI in Radiator Caps. Napa went so far as to tell me that they do not come in 15 PSI. $6.99 (1) Ships Today Lowest Price Guarantee. Order this Ford Motorcraft 13lb. Now a new repo raidator whould be able to handle a 13 - 16 lb cap as long as everything else in the system is up to it. Not Available. Some people think this cap is broken when they first see it because the part that goes into the fill pipe to seal the system “wobbles.” This is a vented coolant cap. 1) Radiator cap it a control valve that raises the boiling temperature point of the car cooling liquid keeping the coolant in liquid form under higher operating temperature. 13,16 18 and 20 PSI. 14 PSI caps are very hard to find. Unlikely but it might do, especially if the radiator is quite old or rusty and it's getting hot in traffic on a hot day. In-Store. Price $4.64. You may find that it is beneficial to test the cap so that you can be sure that it is working properly. On a drive this afternoon, the temp stays stable, but it starts stalling at a stop sign. Steiner Tractor Parts sells new parts for old tractors. ... 13 to 16 psi caps. The difference is not much 3 degrees for each PSI. Bazaarvoice SAP Hybris Integration Version 2.8.0. I want to replace the radiator cap on my 1995 Buick LeSabre, I have no idea when it was done last. F 0 100C 212F 120C 248F 33 104C 219F 125C 257F 44 107C 224F 128C 262F 50 108C 227F 129C 265F 60 111C 232F 132C 270F Effect of System Pressure on Boiling Point Coolant 0 psi 3psi 5 psi 10 psi 12 psi 15 psi 20 psi … Along with the radiator cap the hoses, clamps, thermostat, gaskets and water pump are … Well, it's about 2-3 degrees for every psi that we increase the pressure of the system. Grainger's got your back. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. Not Available. You could use a 15 or 16 lb cap, all cooling system components should be tested to say 30 psi. Stant 10242 Radiator Cap - 16 PSI 4.4 out of 5 stars 312. Save on Radiators Caps with great deals at Advance Auto Parts. Radiator Cap ; 13 psi (SAE Range 12-16 psi) View Details. Not Available. Select Store. So you should be good to around 240 degrees depending on coolant boiling point. A 0.9 bar cap is 13.05 psi cap. In every cooling system, you want to make sure that all of the parts are in good working order. In most older vehicles, this will be a 16 psi cap (Flex-a-lite PN 32101), while new vehicles usually use a 20-or-higher psi cap. Not Available. So, what PSI cap should I be running, 13 or 16, and any ideas on what might be causing the overheating? I'm looking for a new radiator cap so as usual I go to look at Rockauto. ... CSF Cap # 13 psi (0.9 kg/cm 2) 10227: 4502: 16 psi (1.1 kg/cm 2) 10233: 4503: 20 psi (1.4 kg/cm 2) 10361: 4540: Micro Cap. Only 1 left in stock (more on the way). Add To Cart. Pick one. There is one coolant cap that is quite different others: Stant #10231. In-Store. The caps pressure rating varies by engine application anywhere from 13 – 16 psi. Stant 10229 Radiator Cap, Cam-On, 13 psi, Metal 4.7 out of 5 stars 258. 4) 0.9 Bar (13 lbs) Cap: Valve open at 100 degC. Gates 31528 Part Number: 465-31528. With a fully staffed technical help department, helpful customer service reps, great product photos, helpful installation and repair videos, we are ready to help you restore your first antique tractor or your one hundredth. This non-vented cap is rated at … He checks the radiator cap and sees it's rated at 16 psi, factory specs is 18 psi (2.4 litre vs. 3.7). Radiator Cap/Gauge, Thermocap, Aluminum, Silver Anodized, Plain, 13 psi, 30-270 Degrees F, Each. Some people here will disagree with me. So buy a 13 or 15 pound cap instead. Buy online, pick up in-store in 30 minutes. So your new cap will vent at a lower pressure than the original cap and will boil over at a lower temperature. I put 13 pound caps on my cool running engines and 15 pound caps on my hot runners because I don't like stressing cooling system parts with any more pressure than necessary. Not Available. VENTED Radiator CAPS. In-Store. The radiator can probably take a 16 pound cap, Champion sends their radiators out with one, the question might be is whether the heater core is up to the task? Q & A. Standard ass Stant stuff. Tridon Radiator Cap 13 psi - 90 kpa - CC1390. Restore your vintage tractor with new aftermarket parts for many classic tractor brands. Check fitment. That means I would only up the rating on the cap if I changed out the thermostat (I think to one that opened at lower temperatures) and upgraded the cooling system. ... Radiator Cap • Series - CA •Pressure - 13 (PSI), 90 (kPa) •System - Recovery •Cap Style - Metal ... Radiator Cap • Series - CJ •Pressure - 16 (PSI… Speedway High Pressure Radiator Cap, 22-24 Lbs Universal Fit, 22-24 psi Pressure Rating, Steel, Zinc Plated, 2.47" Overall Diameter ... Speedway 16 Lb. Obviously the difference is the pressure, 1 bar = 1 atmosphere so a 1.1 bar cap is 15.95 psi cap. CDN$13.93. The one that is on there says 15 PSI. Tridon Radiator Cap 16 psi - 110 kpa - CC16110. ... Stant 10233 Radiator Cap - 16 PSI 4.7 out of 5 stars 377. The top portion of the radiator cap will list the pressure rating. Videos & Articles. 2) 1.3 Bar (19 lbs) Cap: Valve open when coolant liquid hits 153 degC. Radiator Caps. lower for older radiators. ... Sunday at NHMS we epoxied the radiator back together, put a 16 lb cap on it, and ran cool all day long. The radiator cap controls this expansion and provides constant pressure on the system. In-Store. Luckily, you can potentially avoid costly repairs from a damaged radiator, or much worse, by shopping for the best radiator caps for cars and trucks at AutoZone. Gates Radiator Cap Universal. When pressures inside your cooling system increase above its psi rating, the radiator pressure cap release some of the coolants into the overflow tank. Looking for STANT Radiator Cap, Cam-On, 13 psi, 12 to 16 lb Pressure Range, Metal, Locking No (35PA40)? Truck64, Dec 10, 2016. As the engine's coolant heats, it expands, increasing pressure inside the closed coolant system. Click to expand... - realistic. Radiator Caps are designed to seal the top of the radiator filler neck to prevent coolant loss, pressurise the cooling system and raise the boiling point of the coolant. In a test run I lost about 1/3 of the coolant, at the time I was using a standard 13PSI radiator cap, I replaced the cap with a 16PSI one, have not lost any coolant but the car still seems to be running a bit on the hot side. Stant 10234 Radiator Cap - 18 PSI When we change from a a 1.1 bar to 1.3 bar cap… 16 lbs is good for about 250 degrees, so you're not going to see much of an improvement there. In-Store. Thermocap Radiator Cap $24.99 Chrome Radiator Pressure Cap, 7 lbs ... $13.99 Hex Brass Radiator Cap, 15 Lbs. Therefore, by using a 1.1 bar cap we make the average boiling point of a stock cooling system somewhere closer to around 257-260 degrees. Gates 31528 Gates Radiator Cap Universal. No old hoses, loose clamps, possibly a bad water pump that you might blow the seal? OE was 14 PSI. Jalopy … It does this by use of a spring loaded valve. Twist-On Radiator Cap for your 1965-1973 or your 1979-1983 Mustang from CJ Pony Parts today! High-performance caps range from 19 – 32 psi. 7 lb cap will work just fine. CDN$14.56. C B.P. 3) 1.1 Bar (16 lbs) Cap: Valve open at 127 degC. A9518719.