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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, Nov 7
Recently Viewed
At a glance
- Condition
- New
- Model
- 19045-PAA-A01
- Dimensions
- 3.2 x 2.6 x 0.6 in
- Weight
- 9.07 g
- Color
- Chrome or Silver
- Exterior Finish
- Chrome" or "Silver
- Item Type Name
- ACCESSORIES
- In the box
- Genuine Honda CAPRADIATOR
Features 4
- Package Dimension : 11 " L x 7 " W x 3 " H
- Country of Origin: CHINA
- Model Number : 19045-PAA-A01
- Item Package Weight : 2 pounds
Specs 23
| Brand | Honda |
|---|---|
| Color | Chrome or Silver |
| Exterior Finish | Chrome" or "Silver |
| Item dimensions L x W x H | 3.2 x 2.6 x 0.6 inches |
| Vehicle Service Type | Various (CR-V, Civic, Prelude, Odyssey, Pilot, Accord, Fit, HR-V, Passport, Ridgeline) |
| Brand Name | Honda |
| Model Number | 19045-PAA-A01 |
| Manufacturer Part Number | 19045-PAA-A01 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | 19045-PAA-A01 |
| Manufacturer | Honda |
| Global Trade Identification Number | 59 |
| Unit Count | 1 Count |
| Item Type Name | ACCESSORIES |
| Manufacturer Warranty Description | LIMITED WARRANTY |
| Style Name | Modern |
| Item Highlight | Denso |
| Item Dimensions | 3.2 x 2.6 x 0.6 inches |
| Item Weight | 9.07 g |
| Compatible with Vehicle Type | Various (CR-V, Civic, Prelude, Odyssey, Pilot, Accord, Fit, HR-V, Passport, Ridgeline) |
| Automotive Fit Type | Vehicle Specific Fit |
| Closure Type | Twist-On |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Seems legit
This works great for the Denso radiator that is in most 05-07 Accords. Needed one that would fit the replacement radiator I bought, because I found out that the Valeo and Denso radiators don't have the same cap. Seems to be working well so far, keeping the fluid in. No complaints.
Reviewed in the United States on February 1, 2026 by Gabe
Just as listed
Good quality. Old one was not letting the system breathe and hoses were flattened when it would cool off . New one works correctly
Reviewed in the United States on April 5, 2026 by JIMBOB
You get what you pay for. In this case, peace of mind and a cap that work.
First of all, it was original manufacturer equipment, a genuine Honda radiator cap, rather than the knock-off garbage that AutoZone sold me. That AutoZone garbage is actually trashed in several Amazon reviews. I was kind of shocked when I realized that was the cap AutoZone sold me. What are they thinking? It makes me reluctant to buy parts at AutoZone. I originally wanted to buy a different cap, because there are ones available here at half the price for what I paid at AutoZone, but after reading the reviews and the descriptions, I became leery about buying them. Paying half wouldn't do me much good if it didn't work and I ended up having to buy multiple caps. I finally noticed this genuine Honda part. Though it was more than twice as much as the other caps I was looking at, I decided to go with it. Even at that price, though, it was only a couple bucks more than the AutoZone knock-off, so it could still be considered a bargain, considering what it is. The cap fit perfectly (which I guess you'd expect, being a genuine Honda part) and it works. The fluid isn't overheating and boiling anymore, as it sometimes was with the knock-off. And the radiator fluid reservoir is now working properly, which I don't think it was with the knock-off. This is definitely a case of you get what you pay for.
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Reviewed in the United States on September 20, 2023 by Kindle Customer
Replacement radiator cap
Brought this radiator cap to replace a worn out one. It is an o.e.m replacement, fits as expected, price point is great, quality as normal for a oem brand, easy to install and haven't noticed any leaks. Happy that it arrived fast and no need to drive to a dealer.
Reviewed in the United States on July 16, 2025 by just-one
Recommend replacement
Replaced cap, hoses and coolant. Must have.
Reviewed in the United States on June 7, 2026 by Troy
⭐⭐⭐⭐⭐ Perfect Fit and Reliable
The Genuine Honda 19045-PAA-A01 Radiator Cap fits perfectly and functions exactly like the original. It maintains proper pressure in the cooling system and feels durable and well-made. Installation was easy, and it provides peace of mind knowing you’re using an OEM-quality part designed specifically for Honda vehicles. Overall, a reliable and high-quality radiator cap — exactly what you need for proper cooling system maintenance.
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Reviewed in the United States on December 18, 2025 by Huzaif
No issues so far in 95F weather
Still going strong after using it for 1500 miles. My coolant temp goes up and peaks out at to 208F without issues driving in 95F weather.
Reviewed in the United States on August 28, 2026 by Jon N
Good Cap
It does the job. Good price
Reviewed in the United States on May 24, 2023 by Alan