Graco 16E844 Pump Inlet Valve Repair Kit
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$59.15
$64.50
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The Graco 16E844 Pump Inlet Valve Repair Kit restores suction and priming performance for select Magnum paint sprayers. Ideal when your unit fails to draw material or leaks back through the inlet.
- Includes inlet housing, ball, spring, and seals
- Fixes inlet leakage and priming loss
- Compatible with Magnum X5, X7, LTS 15, LTS 17, and Project Painter Plus
- OEM Graco replacement kit ensures reliable pump performance
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Compatibility & Key Details for Graco 16E844 Pump Inlet Valve Repair Kit
Compatible Machines
This kit services the inlet (suction) check valve on select Magnum homeowner sprayers. Confirm your model’s series letter before ordering.
- Magnum X5 (common Series B–E)
- Magnum X7 (common Series B–E)
- LTS 15
- LTS 17
- Project Painter Plus
What the Graco 16E844 Pump Inlet Valve Repair Kit Does
The 16E844 restores prime and suction by renewing the inlet check assembly on compatible Magnum sprayers. If your unit won’t draw material, loses prime, or leaks back through the inlet, this kit replaces the worn ball/seat and related pieces so the pump seals correctly on the intake stroke.
What’s Included & Key Notes
| Item | Details |
|---|---|
| Kit Number | 16E844 – Pump Inlet Valve Repair Kit |
| Typical Contents | Inlet housing/seat, check ball, spring (return component), seals/O-ring(s), and instructions (contents may vary by revision). |
| Function | Rebuilds the inlet (suction) check so the pump can draw and hold prime correctly. |
| When to Use | Hard or no priming, inlet leakage, surging from suction, or visible seat/ball wear. |
| Compatibility Note | Match your exact model and series (e.g., X5/X7 Series B–E) against your parts manual before purchase. |
Installation & Use Notes
- Depressurize, unplug, and follow your sprayer’s service manual for inlet valve removal and reassembly.
- Clean the pump cavity and mating threads; debris can prevent proper sealing even with new parts.
- Replace worn O-rings and lubricate per manual. Do not overtighten the housing.
- After reassembly, prime with water/appropriate solvent first to confirm proper operation.
Common Symptoms Indicating Inlet Kit Service
- Pump won’t prime or frequently loses prime
- Material pulls air at the inlet or drips back from the suction side
- Intermittent flow or surging at the gun despite a good outlet valve
Frequently Asked Questions
Check your sprayer’s model and series letter on the data plate, then verify in the official parts manual. If the inlet valve line item lists 16E844, this is the correct kit.
The inlet valve controls suction into the pump; the outlet valve controls flow leaving the pump. Each uses different parts and part numbers. Use 16E844 only where your manual specifies it for the inlet side.
Typically no special tools beyond wrenches and common hand tools. Follow torque/assembly guidance in your service manual and ensure all sealing surfaces are clean.
Check for air leaks at the suction tube, clogged inlet strainer, or a worn outlet valve. Confirm you installed all O-rings and that the ball/seat are clean and oriented correctly.
No—those professional units use different pump families and valve kits. The 16E844 is intended for the Magnum homeowner series listed above.
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Jeffrey K.
Needed a replacement 16E844 Pump Inlet Valve Repair Kit, part number 16E844, and it matched the original spec exactly, down to the part number. Customer support was helpful when I had questions about fit.
