LT1 waterpump rebuild kit
Thread Starter
Intermediate
Joined: Nov 2025
Posts: 38
Likes: 6
LT1 waterpump rebuild kit
recently replaced waterpump, and looking for a rebuild kit for the LT1 pump. Saw several old advertisements for kits in early 2000's but all sites are now outdated and inactive. would like to rebuild my used pump and have it on the shelf for backup. I know the kits had 4 orings and the double row bearing for impeller, does anyone have a source or even a list of part numbers for individual parts?. Seems like a 40 dollar rebuild kit would be much more popular then dropping 175 bucks for a new pump. PS......not referring to the bearing on the pump-camshaft drive gear which is in the engine block.
Last edited by bajasam; Mar 11, 2026 at 01:36 PM. Reason: added info
Pro
Joined: Mar 2007
Posts: 591
Likes: 350
From: Mt Prospect IL
2025 C4 of the Year Finalist - Unmodified
Don’t know about the O rings but I have found this is a good source for bearings.
https://thebigbearingstore.com/
https://thebigbearingstore.com/
Safety Car
Joined: Mar 2017
Posts: 4,157
Likes: 1,292
From: LeClaire Iowa
recently replaced waterpump, and looking for a rebuild kit for the LT1 pump. Saw several old advertisements for kits in early 2000's but all sites are now outdated and inactive. would like to rebuild my used pump and have it on the shelf for backup. I know the kits had 4 orings and the double row bearing for impeller, does anyone have a source or even a list of part numbers for individual parts?. Seems like a 40 dollar rebuild kit would be much more popular then dropping 175 bucks for a new pump. PS......not referring to the bearing on the pump-camshaft drive gear which is in the engine block.
