





🖤 Lock in performance with the Stant 10230 Radiator Cap — your engine’s unsung hero!
The Stant 10230 Radiator Cap is a high-quality, metal radiator cap rated at 16 PSI, designed to fit 3/4" deep 'A' size filler necks on cars and trucks. Featuring a durable 4-ear metal design and a sleek black finish, it ensures reliable pressure control and engine protection. With a 1-year warranty and strong customer approval, it’s a trusted choice for maintaining optimal cooling system performance.



| ASIN | B000B8LKVY |
| Best Sellers Rank | #199,575 in Automotive ( See Top 100 in Automotive ) #166 in Automotive Replacement Radiator Standard |
| Brand | MotoRad |
| Brand Name | MotoRad |
| Closure Type | Twist-On |
| Color | Black |
| Compatible with Vehicle Type | Car, Truck |
| Customer Reviews | 4.6 out of 5 stars 2,760 Reviews |
| Exterior Finish | Painted |
| Global Trade Identification Number | 00033342001305 |
| Included Components | Unit^Instruction Guide |
| Item Dimensions | 2.6 x 2.6 x 2.6 inches |
| Item Height | 2.6 inches |
| Item Type Name | Automotive Accessories |
| Item Weight | 2.4 ounces |
| Item dimensions L x W x H | 2.6 x 2.6 x 2.6 inches |
| Manufacturer | STANT |
| Manufacturer Part Number | 10230 |
| Manufacturer Warranty Description | 1 year manufacturer |
| Material | Metal |
| Material Type | Metal |
| Model Number | 10230 |
| Style Name | Modern |
| UPC | 771395370299 033342001305 |
| Vehicle Service Type | Car, Truck |
L**S
Good fit
Good price Good fit
F**T
Good Product
Fit vehicle
D**.
Works great
Works great.
M**R
Stant = Motorad
Just FYI, I received a "Motorad" branded cap in. Stant box. I guess one company bought out the other. The cap is of good quality and made like I remember Stant to me. Minus 1 star for lack of brand transparency.
B**P
Works great
Perfect fit!
L**.
Perfect replacement
After spending weeks trying to find where my coolant was becoming a ghost, I decided to go against my dad's order after researching on Google. Ghost leaks can happen when the radiator cap isn't sealing properly. So, instead of spending a fortune to take it to a shop, I bought this replacement cap to try first. My dad has 35 years experience working on vehicles. I participated a lot; Mostly holding the flashlight and handing over tools. It took a lot to go this route but I'm glad I did. Ghost leak has disappeared! This was a perfect fit for my van and saved me hundreds of dollars for my coolant ghost leak.
R**N
This is a non-vented cap for "open" systems
I did hours of research regarding different types of radiator caps and in which system types they are designed to function. There is a lot of misunderstandings and misinformation out there, even from otherwise knowledgeable sources. My understanding that this cap (10230) is Stant's NON-VENTED cap. The 10231 is Stant's vented cap. Non-vented caps are for open systems wherein any out-flow is routed to the ground or into a non-recovery tank or reservoir. Vented caps are for "closed" systems wherein any out-flow is routed into a recovery tank and the vented cap allows coolant to flow from the tank back into the radiator as the system cools. Therefore, I believe the statement in the product description for this cap that it is "(f)or open or closed system" is incorrect and this cap should only be used in an open system. A vented cap should be purchased for a system that requires flow back into the radiator from a recovery tank. I have not definitively determined but believe it to be true that either style cap will work in an open system so the only mistake would be installing a non-vented cap in a closed system because it would not allow flow back into the radiator.
G**Y
good fit tight seal
holds pressure as it should good fit tight seal
Trustpilot
3 weeks ago
5 days ago