Graco 15K143 Knob 3/8-16 4-Prong
$21.80
Available to Order
The Graco 15K143 Knob 3/8‑16 Prong offers ergonomic, easy grip control for machine adjustments, designed with a 3/8‑16 threaded mount and prong style handle.
- Ergonomic prong‑style knob for Graco sprayers
- Threaded 3/8‑16 mount for secure fit
- OEM part that ensures consistent function and appearance
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 15K143 Knob 3/8‑16 Prong – Detailed Product Overview
Compatible Machines
- Graco cart sprayers with control panels that specify knob part 15K143
- Finishing machines where fine‑adjust knob is required for pressure or setting controls
The Graco 15K143 Knob 3/8‑16 Prong is designed for user‑friendly adjustment of various controls on Graco equipment. With a 3‑8‑16 thread and prong‑style grip, it allows quick hand‑turn adjustments without tools, offering both ergonomics and reliability. Its OEM build maintains original machine feel and durability.
| Key Feature | Benefit |
|---|---|
| 3/8‑16 Thread | Matches original mounting hardware for direct replacement. |
| Prong‑Style Grip | Enables easy hand adjustment without tools. |
| OEM Quality Material | Ensures long‑term durability and consistent feel. |
Installation & Usage Tips
- Remove the existing knob by unscrewing counter‑clockwise.
- Clean the mounting stud and threads before installing the new knob.
- Screw on the new knob until hand‑tight; avoid overtightening which may strip threads.
- Check operation of the control after installation to ensure smooth movement.
Frequently Asked Questions
No — this part is specifically designed with a 3/8‑16 thread; using a different size may result in poor fit or damage.
Yes — the prong‑style grip allows manual adjustment without additional tools, improving operator convenience.
Replace only if you feel looseness, stripped threads, or if the knob becomes difficult to turn — otherwise it serves well for the life of the machine.
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