O Ring for Pump Face

These o-rings are the three o-rings for the pump face that go into the back side of the pump’s larger inlet manifold. All three o-rings should be replaced when there is leaking between the two block manifolds and main pump inlet manifold (as shown in the photos). These o-rings are also included as part of the seal kit. If the pump is leaking onto the ground between the two block manifolds and the main pump inlet manifold, then replacing just these o-rings should resolve the issue. However, if that area is leaking into the pump, then a seal kit is necessary.