Overview & Compatibility
This genuine Graco 166068 Housing, Valve, Intake fits the Stainless Steel Bulldog 5:1 pump lower shown in the OEM parts list. Confirm by matching your lower/pump model.
- Graco Bulldog 5:1 Pump (Model 207321)
- Graco Bulldog 5:1 Pump (Model 206418)
- Graco Bulldog 5:1 Pump (Model 206796)
Graco 166068 Intake Valve Housing
What this part does
The intake valve housing forms the lower body of the pump’s intake check assembly. It holds the valve plate, pin, and O-ring in alignment so the pump can seal on the intake stroke, maintain prime, and deliver a consistent fluid column. Replacing a worn housing helps restore suction efficiency and reduces premature packing wear.
Key Specifications
| Manufacturer |
Graco |
| Part Number |
166068 |
| Description |
Housing, Valve – Intake |
| Assembly Location |
Intake side of stainless-steel pump lower (Bulldog 5:1 family) |
| Typical Associated Parts |
Valve plate, intake pin, O-ring, cylinder, outlet housing (per OEM schematic) |
Fitment Guidance
- Verify your pump’s lower manual/bill of materials lists item “Housing, Intake Valve” as #166068.
- Dimensions and tie-rod pattern must match the Stainless Steel Bulldog 5:1 lower noted above.
- Not interchangeable with other intake housings unless explicitly cross-referenced by Graco.
Benefits of OEM Replacement
- Correct geometry for reliable intake sealing and fast priming.
- Maintains pump performance and extends life of packings/valve components.
- Assured material quality and fit per Graco specifications.
Frequently Asked Questions
Check your pump lower’s parts list or schematic. If the intake housing is listed as part #166068, this is the correct replacement. Matching by lower model (e.g., Bulldog 5:1 models 207321, 206418, 206796) is a strong indicator but always verify against your exact build sheet.
Hard starting/losing prime, erratic flow, visible cracks or scoring in the housing bore, and repeated intake valve leakage after new plates/O-rings often indicate the housing is worn or distorted.
Relieve pressure, clamp the housing in a soft-jaw vise, and follow the OEM sequence for installing the valve plate (rounded side up), pin, and O-ring. Inspect mating faces and torque tie-rods to the manual specification during reassembly.
