Mi-T-M ChoreMaster® Series Pressure Washer Parts
Collection: Mi-T-M ChoreMaster® Series Pressure Washer Parts
The Mi-T-M ChoreMaster® Series represents a proven line of compact, commercial-grade pressure washers built for facilities maintenance, equipment cleaning, and industrial washdown applications. ChoreMaster pressure washer parts are engineered to maintain peak performance in high-cycle environments where uptime directly impacts operations. Whether you're replacing wear components like pump valve kits and thermal relief valves, or sourcing complete seal packing assemblies, this collection stocks genuine Mi-T-M replacement parts that meet OEM specifications. Since 1985, Pittsburgh Spray Equipment has supplied parts for chore master pressure washer models CM-2600 and CM-2700, helping facility managers extend equipment life and avoid costly downtime.
How to Choose the Right Mi-T-M ChoreMaster® Series Pressure Washer Parts
- Verify your ChoreMaster model number (CM-2600 or CM-2700) before ordering parts.
- Confirm part number matches your unit's build spec; cross-reference on equipment nameplate.
- Check if replacement requires pump valve kit, thermal relief valve, or seal packing kit.
- Assess whether unloader or high-pressure seals are wear-limiting components for your usage.
- Review pump displacement and pressure rating to match replacement parts to machine specs.
- Determine if thermal relief (heat dump) valve replacement is routine maintenance due.
- Evaluate wheel diameter (10-inch) compatibility if component includes wheel assembly.
Model Comparison
| Part Type | Part Number | Application | Service Function |
|---|---|---|---|
| Pump Valve Kit | 70-0502 | ChoreMaster Series | Maintains pressure regulation and flow control |
| Pump Valve Kit | 70-0516 | ChoreMaster Series | OEM replacement for valve stack assembly |
| Thermal Relief Valve (Heat Dump) | 22-0005 | ChoreMaster Series | Protects pump from overheating under idle load |
| High Pressure Seal Packing Kit | 70-0501 | ChoreMaster Series | Replaces worn pump shaft seals and packings |
| Unloader Valve | CM-2600 & CM-2700 | ChoreMaster Series | Diverts flow at no-spray trigger to reduce pressure |
Frequently Asked Questions
How often should I replace the thermal relief valve (heat dump) on my ChoreMaster pressure washer?
Thermal relief valves typically require replacement every 2–3 years in heavy-use environments, or sooner if the pump runs frequently at idle. If water temperature remains elevated even after spray gun trigger release, the 22-0005 or 22-0408 heat dump valve may need service. Regular replacement prevents pump cavitation and seal degradation.
What's the difference between the two pump valve kits (70-0502 and 70-0516)?
Both kits are pump valve assemblies for ChoreMaster units; part selection depends on your specific machine build year and pressure class. Cross-check your equipment's nameplate or original parts manual to confirm correct part number. Using the wrong valve kit can cause pressure drop or flow loss.
Do I need to replace the unloader valve separately, or does it come with other kits?
The unloader valve for CM-2600 and CM-2700 models is a standalone component and must be ordered separately. It diverts flow when trigger is released, extending equipment life. Unloaders typically wear faster in cold-weather or salt-air applications and may require replacement every 18–24 months.
What's included in the High Pressure Seal Packing Kit (70-0501)?
The 70-0501 kit supplies replacement pump shaft seals, packing rings, and associated washers. This kit addresses internal pump leakage and is essential when you notice water weeping from the pump head or pressure loss. Installation requires partial pump disassembly; refer to your service manual or contact our technical team.
Are these genuine Mi-T-M parts, and do they carry any warranty?
Yes—all parts in this collection are OEM Mi-T-M components. Warranty terms depend on product type and your distributor agreement; contact our sales team for specific coverage details. Genuine parts ensure compatibility and performance reliability versus aftermarket alternatives.
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