Graco 17H889 Carbide seat kit

Graco 17H889 Carbide Seat Kit is a genuine Graco replacement designed to restore sealing performance in high-pressure airless pumps. Ideal for professional users needing durable, leak-free operation.

Fits GMAX II 7900 IronMan
Made from wear-resistant carbide for long life
Ensures consistent spray pattern and pressure retention
Easy installation with genuine OEM fit

List Price: $328

You save: $87.9 (26.80%)

Sale Price: $240.1

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Description

Compatibility & Quick Details for Graco 17H889 Carbide Seat Kit

Compatible Machines

This genuine Graco 17H889 Carbide Seat Kit fits the following sprayer model(s):

GMAX II 7900 IronMan (seat repair kit for the pump)

Tip: Match your sprayer’s pump assembly and serial range against your service manual for final confirmation before ordering.

What is the 17H889?

The Graco 17H889 Carbide Seat Kit is a wear part for high-pressure airless pumps. The hardened carbide seat provides long-lasting sealing performance, helping restore pressure, reduce leakage, and maintain a consistent spray pattern on professional jobs.

Key Details

Part Number	17H889
Item Type	Carbide Seat Kit (pump seat / sealing surface)
Material	Hard-wearing carbide for abrasion resistance
Function	Restores pump sealing, pressure retention, and spray consistency
Typical Use	Maintenance / repair of compatible Graco airless sprayers

Why choose the Graco 17H889?

Carbide seat resists wear in high-pressure, abrasive coatings
Improves sealing to reduce by-pass and micro-leaks
Helps maintain factory-level spray quality and productivity
Genuine Graco fit for fast installation and reliable performance

Fit & Installation Notes

Relieve pressure and flush the pump before disassembly.
Clean mating surfaces thoroughly; debris can damage a new seat.
Follow torque/sequence in your machine’s service manual.
Pressure-test after assembly to confirm a proper seal.

Frequently Asked Questions

Check the pump assembly used on your machine and cross-reference with your Graco service manual or parts list. If your unit is a GMAX II 7900 IronMan, this is the designated carbide seat kit.

Difficulty holding pressure, persistent leaks, pressure fluctuations, or an inconsistent spray pattern typically point to a worn seat or related sealing components.

No. Graco seat kits are matched to specific pump sizes/series. Use the exact part number specified for your sprayer to ensure proper sealing and longevity.

Typically, standard hand tools and a torque wrench (per manual specs) are sufficient. Cleanliness and correct torque are critical to prevent leaks and premature wear.

Use proper filtration, flush after use, avoid running dry, and stick to recommended coatings. Abrasive fillers accelerate wear even on carbide components.