# Plastic Radiator Cap Repair **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 18, 2008, 5:32pm UTC](https://community.cartalk.com/t/plastic-radiator-cap-repair/20874 "2008-10-18T17:32:00Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Harleydog](https://avatars.discourse-cdn.com/v4/letter/h/34f0e0/32.png) [@Harleydog](https://community.cartalk.com/u/Harleydog)\ **Post date:** [October 18, 2008, 5:32pm UTC](https://community.cartalk.com/t/plastic-radiator-cap-repair/20874/1 "2008-10-18T17:32:00Z")
I have a '98 Accord with a hairline crack in the radiator cap, which is plastic. Any thoughts on a cheap repair? ---
**Author:** ![FoDaddy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/fodaddy/32/717_2.png) [@FoDaddy](https://community.cartalk.com/u/FoDaddy)\ **Post date:** [October 18, 2008, 5:45pm UTC](https://community.cartalk.com/t/plastic-radiator-cap-repair/20874/2 "2008-10-18T17:45:42Z")
new radiator caps can be had for abour $10-$14. ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [October 18, 2008, 7:33pm UTC](https://community.cartalk.com/t/plastic-radiator-cap-repair/20874/3 "2008-10-18T19:33:51Z")
If you’re talking about the actual radiator cap (pictures of which showed metal ones) then you must replace it. If you’re talking about the cap of the coolant reservoir, it’s not critical to repair or replace, if it stays in place OK. ---
**Author:** ![meaneyedcatz](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/meaneyedcatz/32/692_2.png) [@meaneyedcatz](https://community.cartalk.com/u/meaneyedcatz)\ **Post date:** [October 19, 2008, 3:37am UTC](https://community.cartalk.com/t/plastic-radiator-cap-repair/20874/4 "2008-10-19T03:37:04Z")
Replace it. It’s not worth the effort to repair it. Plus a repair most likely will not last.