Graco 17J874 Pump Assembly Kit
The Graco 17J874 Pump Assembly Kit is a genuine replacement for maintaining peak performance in your airless sprayer. It offers a quick, tool-free swap and restores pressure and spray consistency.
- Fits Magnum ProX17 and ProX19 (stand & cart models)
- Also fits Pro LTS 170 / 190 and select Airlessco SP340 units
- Complete pre-assembled pump — no rebuild required
- Ideal for restoring lost pressure or priming issues
Product Overview
The Graco 17J874 Pump Assembly Kit is a complete, pre-assembled ProXChange pump designed to replace a worn or damaged pump so your sprayer can prime and spray like new. It includes the pump housing, check valves and packings—no special tools required for ProXChange-style swaps.
Compatible Machines
This kit fits the following Magnum ProX / ProLTS models (stand & cart variants) and select sister units:
- Magnum ProX17 – Stand 17G177, Cart 17G178
- Magnum ProX19 – Stand 17G179, Cart 17G180
- Magnum Pro LTS 170 – Stand 17H198
- Magnum Pro LTS 190 – Cart 17H206
- Magnum ProX19 Cart (Cordless) – 25U478
- Airlessco SP340 Hi-Boy – 17H205
- Airlessco 3400 Mustang Hi-Boy – 17H204
Tip: Always verify against your exact model/serial and parts manual. Some retailer lists may include additional close relatives (e.g., SP3400/17H224) but the core fit is the ProX17 / ProX19 family and their ProLTS counterparts.
Why Choose the 17J874 Kit?
- Genuine Graco parts for durability and reliable sealing.
- Pre-assembled pump & valves cut downtime vs. piece-by-piece rebuilds.
- Fixes prime/spray issues caused by worn packings or check-ball valves.
- ProXChange™ design enables quick, on-site swap on compatible sprayers.
Quick Specs
| OEM Part | Graco 17J874 Pump Assembly Kit |
|---|---|
| Pump Type | Complete pre-assembled ProXChange piston pump (housing, check valves, packings) |
| Primary Families | Magnum ProX17, Magnum ProX19 (stand & cart) |
| Common Symptoms Resolved | Poor priming, won’t spray, loss of pressure due to worn packings / valve failure |
| Installation | Tool-free pump swap on ProXChange-equipped models; follow sprayer manual |
Installation & Compatibility Notes
- Match the kit to your exact sprayer model (ID plate) before ordering.
- Follow the sprayer’s owner manual for depressurizing and pump removal.
- If your unit is not a ProX17/ProX19 (or ProLTS 170/190 equivalents), check its parts manual—other pumps (e.g., 288703) may be required.
