Silicone Coolant Bypass Caps
These caps feature the same water- and coolant-resistant silicone rubber formulation as our silicone coolant hoses. They are designed for capping off coolant bypass or heater fittings, but they can also be used to keep dust out of fittings in storage.
Each measures 38mm long overall with a 30mm depth and a 4mm wall thickness. Maximum temperature for all sizes is 392° F (200° C). Operating pressure rating varies from 14 psi for the largest sizes up to 64 psi for the smallest. Black silicone rubber only.
Recent Top Seller for this product group | |
| Have a coolant nipple that needs to be plugged but don't have a cap or plug? Here is your solution! Functions with a 3/4" OD nipple. |
| Image | Part No. | Description | Price | Stock Status |
|---|---|---|---|---|
 | SBC6.5-BLACK | $4.99* | In Stock | |
 | SBC8-BLACK | Black Silicone Coolant Bypass Cap, 5/16 inch ID | $5.99* | In Stock |
 | SBC9.5-BLACK | $6.84* | Not In Stock notify me when available | |
 | SBC10-BLACK | $6.99* | In Stock | |
 | SBC11-BLACK | $7.19* | In Stock | |
 | SBC12-BLACK | Black Silicone Coolant Bypass Cap, 12mm ID | $7.49* | In Stock |
 | SBC13-BLACK | Black Silicone Coolant Bypass Cap, 1/2 inch ID | $8.19* | Not In Stock notify me when available |
 | SBC16-BLACK | Black Silicone Coolant Bypass Cap, 5/8 inch ID | $8.79* | In Stock |
 | SBC18-BLACK | $8.84* | In Stock | |
 | SBC19-BLACK | $9.39* | In Stock | |
 | SBC20-BLACK | $9.79* | In Stock | |
 | SBC22-BLACK | Black Silicone Coolant Bypass Cap, 7/8 inch ID | $10.49* | In Stock |
 | SBC25-BLACK | Black Silicone Coolant Bypass Cap, 1.00 inch ID | $10.79* | In Stock |
 | SBC27-BLACK | $11.29* | In Stock | |
 | SBC28-BLACK | $11.49* | In Stock | |
 | SBC30-BLACK | $11.79* | In Stock | |
 | SBC32-BLACK | $12.49* | In Stock | |
 | SBC35-BLACK | $12.69* | In Stock | |
 | SBC38-BLACK | $12.99* | In Stock | |
 | SBC40-BLACK | $13.64* | In Stock | |
 | SBC45-BLACK | $14.59* | Not In Stock notify me when available |
* Quantity Pricing Available
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Cooling System Components & Silicone Hose |