Graco 220399 Pump repair kit

The Graco 220399 Pump Repair Kit restores sealing performance and pressure consistency in Bulldog and King Q-Pump style airless units. Ideal for routine maintenance and leak prevention.

Includes leather & polyethylene packings
Fits 30:1 Bulldog and 63:1 King pumps
Pre-assembled stacks for easy installation
Genuine Graco replacement for reliable operation

Based on 0 reviews

Description

Overview & Compatibility

Compatible Machines

This kit services specific Graco pneumatic airless pump lowers that use the Q-Pump style packing stack.

• Graco 30:1 Bulldog pneumatic pumps (Q-Pump style)
• Graco 63:1 King pneumatic airless pumps (selected models with Q-Pump lowers)

What is the Graco 220399 Pump Repair Kit?

The Graco 220399 Pump Repair Kit is a maintenance kit for refurbishing the pump lower’s internal sealing stack on compatible Bulldog/King pneumatic units. Typical contents include pre-assembled gland/packing stacks, shims, and sealing elements designed to restore pressure, reduce leakage, and extend service life.

Kit Contents & Quick Specs

Part Number	220399 (Kit, Pump Repair)
Packing Materials	Leather & polyethylene (PE) sealing elements (typical Q-Pump stack)
Intended Use	Rebuild/refresh pump lower packings to recover pressure and eliminate fluid leaks
Typical Platforms	30:1 Bulldog, 63:1 King (Q-Pump configuration)

Why use this kit?

Restores atomization pressure and consistent output
Reduces internal bypass and fluid leakage
Pre-assembled components help speed up service and ensure correct stack height

Fit Guidance

Match your pump lower style (Q-Pump) and platform (Bulldog / King) before ordering.
Check your pump’s tag/plate or parts manual to confirm the correct repair kit number.
If uncertain, cross-reference your pump lower assembly in the service manual.

Installation Notes

Clean all mating surfaces; inspect rod/cylinder for scoring before reassembly.
Lubricate packings as recommended; observe torque specs and stack sequence.
After rebuild, prime with compatible solvent/coating and verify there are no leaks.

Frequently Asked Questions

Not all variants. It fits models that use the Q-Pump style lower. Always verify your pump lower and part number in the manual before purchase.

Loss of pressure, pulsation, material leaking past packings, or frequent re-priming are common signs that packings are worn and need replacement.

Basic hand tools typically suffice. Follow the service manual for safe disassembly, packing order, and torque values. A soft-jaw vise and assembly lube are helpful.

Leather and polyethylene (PE) elements are commonly used in this kit to balance sealing, lubrication retention, and durability for high-pressure use.

After reassembly, prime with compatible solvent or material at low pressure, check for leaks, then gradually ramp to operating pressure while monitoring performance.