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🛠️ Cap it, seal it, forget it — the ultimate fix for pros who demand reliability!
Dorman 02250 Coolant Bypass Caps are universal 5/8 inch vinyl caps engineered for heat resistance and vacuum-tight sealing. Ideal for automotive and plumbing uses, these durable caps prevent leaks in coolant hoses, vacuum lines, and emission systems. Each pack includes two caps, supported by Dorman’s ASE-certified technical team, making them a trusted choice for professionals and DIYers alike.
| ASIN | B00Z7MM0IG |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #12,143 in Automotive ( See Top 100 in Automotive ) #111 in Automotive Emission & Exhaust Products |
| Brand | Dorman |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (704) |
| Date First Available | June 8, 2015 |
| Exterior Finish | Machined |
| Global Trade Identification Number | 00037495022507 |
| Item Weight | 0.317 ounces |
| Item dimensions L x W x H | 5.49 x 1.81 x 1.72 inches |
| Item model number | 02250 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 02250 |
| Material | Vinyl |
| Model | Dorman 02250: Coolant Bypass Caps - EPDM 5/8in |
| OEM Part Number | 02250 |
| Product Dimensions | 5.49 x 1.81 x 1.72 inches |
| Style | Tool |
| UPC | 037495022507 |
| Vehicle Service Type | Car |
A**R
Fits sink tailpiece and auto heater lines.
I have used these in the past to block off coolant hoses on a van rear heater that was leaking. This time I needed something to block the dishwasher hook up on a kitchen sink tailpiece. Quality seems appropriate to the purpose. Would buy again.
W**R
Cap me over
These worked well (one at least). Capped the water fitting just fine
R**.
Fits well
Good fit for my heater core on my '95 F150
R**E
They work
I installed these as a stop gap while I replaced the heater core in my Mustang. They are simply non-reinforced rubber caps, nothing special. I was afraid to use the car because I'm paranoid and I didn't want these to fail and leave me stranded so it made me get the heater core done faster. But they worked fine and did what I needed them to do.
M**.
Good price!
Recommended. Great product. Good Quality. Exactly as described and expected.
P**Y
5/8 OD not ID
Good quality rubber cap but 5/8 is the OD not the ID.
R**Y
Bypass Reservoir Cap
Very Thankful For Having The Right Size & Description. It Fit Very Well & Will Continue To Order More Items From AMAZON!!!
R**R
Sealing kit
Good kit for closing piping under the hood
J**E
Parfait! Exactement ce que j’avais besoin sur ma voiture. Super bonne qualité!
J**N
Fit as described perfectly.
C**S
Fit for what i needed them for
C**S
Works as intended and flexible enough to fit without breaking/cracking
S**.
Not much you can say about bypass caps but the quality is good.
Trustpilot
1 day ago
2 weeks ago