Description
This seal, piston is a direct-fit replacement for Graco part 178226, used in GH 130 (2014+), LineLazer V 130 HS. It installs in the original position with no modification.
Common reasons this seal, piston is replaced:
- Leaking at the seal, gland, or mating face
- Pressure loss during operation
- Hardening, cracking, or flattening with age
- Routine replacement during a pump or gun rebuild
Manufactured to OEM-equivalent dimensions for proper fit and performance. Compatible equipment models are listed in the Compatible Equipment section below, where available.









