Graco 17M882 Prime Valve Knob
5/5
(1 review)
$5.25
Available to Order
The Graco 17M882 Prime Valve Knob provides precise, ergonomic control of the prime/flow valve on compatible Graco airless sprayers. Its tool‑free install and rugged design make it an ideal OEM replacement for worn or broken knobs.
- OEM prime valve knob (17M882)
- Precise priming and flow control
- Tool‑free installation
- Durable, corrosion‑resistant design
- Fits Ultra and related Graco sprayers
- Improves operator comfort
- Restores original control feel
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 17M882 Prime Valve Knob — Precision Priming Control
The Graco 17M882 Prime Valve Knob is a genuine Graco OEM replacement knob for controlling the prime valve on compatible sprayer models. This knob enables precise control of priming and fluid flow during setup, ensuring a smooth transition from priming to spraying. Designed for industrial, commercial, and residential applications, the 17M882 knob delivers ergonomic ease of use and long‑lasting durability even in demanding work environments.
Compatible Machines & Models
| Compatible Sprayer Model / Series | Notes |
|---|---|
| Graco Ultra Corded Handheld Sprayer | Uses prime valve knob for pump priming control |
| Graco Ultra Cordless Handheld Sprayer | Tool‑free installation and ergonomic control |
| Graco UltraMax / Quickshot Sprayer Series | Common prime valve interface knob |
| Other Graco handheld & compact sprayers | Models that specify 17M882 in parts list |
Product Overview
- Part Number: 17M882
- Product Type: Prime Valve Knob
- Function: Manual control of prime/flow valve
- Fitment: OEM replacement for compatible Graco sprayers
- Installation: Tool‑free twist‑on mount
Benefits
- Enables rapid priming of the fluid path
- Ergonomic grip for comfortable operation
- Corrosion‑resistant design for rugged job site use
- OEM fit ensures reliable performance and alignment
- Restores precise control after wear or breakage
Features
- Tool‑free installation and removal for quick servicing
- Knurled surface for secure grip even with gloves
- Durable polymer/metal construction to resist wear
- Smooth rotational feel for repeatable control
- OEM part for warranty and performance assurance
When to Replace the Prime Valve Knob
- If the knob becomes cracked or stripped
- If it no longer engages the prime valve smoothly
- When frequent priming requires a more ergonomic control
- If the original knob has worn knurling or grip surface
Frequently Asked Questions
The prime valve knob controls the prime/flow valve on the sprayer, enabling you to pull fluid through the pump and hose before spraying begins, ensuring smooth material feed.
Installation is typically tool‑free — simply align and twist onto the prime valve shaft until seated. Refer to your sprayer manual for exact alignment details.
This knob is specifically designed for Graco prime valve shafts and may not fit other brands unless the shaft geometry and mounting are identical.
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5
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David D.
Wasn't sure about the fit at first, but this 17M882 Prime Valve Knob and it's been reliable through several jobs since. Part #17M882 matched exactly. Would order again without hesitation.
