Description
Product Overview
The YMT 238286 repair kit is engineered exclusively for Graco 5:1 Fire‑Ball 300 series pumps. It includes upper and lower kit parts, premium Viton and high‑grade urethane seals, poppet valves, grommets, adjusting nuts, O‑Ring and a packing block. Each component is precision‑machined to match OEM specifications, ensuring a perfect fit and leak‑proof operation. The kit weighs only 3.04 oz and packs in a compact 7.8 × 7.8 × 0.67 in box for easy storage.
![[Product front view showing all components]](https://www.dawngo.store/wp-content/uploads/2026/06/af1af06ae45f430cb9ec4b6e2f57f3e7.jpg)
Usage
Designed for automotive service shops and field technicians, this kit restores the air motor and pump functions of Fire‑Ball models 203857, 203872, 203876, 204254 and 222087. Ideal for routine maintenance, emergency repairs, or rebuilding projects, it helps keep hydraulic systems running smoothly in trucks, construction equipment and industrial machinery.
Why Choose Us
YMT combines decades of hydraulic expertise with rigorous quality control. All seals are tested for temperature resistance and chemical compatibility, guaranteeing long‑term performance. Our kits are fully vetted against Graco OEM standards, and we back every purchase with responsive customer support to resolve any fit or function questions.
Key Features
- Premium Viton and urethane seals provide superior leak resistance
- Complete set includes valves, grommets, nuts, O‑Ring and packing block
- Exact OEM fit for Graco 5:1 Fire‑Ball 300 series pumps
- Easy installation reduces service time and labor costs
- Dedicated after‑sales support ensures quick resolution of any issues
FAQ
Does this kit fit all Fire‑Ball pump models?
It is compatible with Fire‑Ball models 203857, 203872, 203876, 204254 and 222087, covering the entire 5:1 300 series range.
What materials are used for the seals?
The kit uses high‑quality Viton for chemical resistance and high‑grade urethane for wear resistance, delivering long service life.
Can I install the kit myself?
Yes, the components are designed for straightforward replacement with basic hand tools, and the included instructions guide you through each step.
Is there a warranty?
All YMT repair kits come with a one‑year limited warranty covering manufacturing defects.
How do I get support if I have a problem?
Contact our customer service team via the Amazon messaging system; we respond promptly to ensure your pump is back in operation.






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