Lennox 88M91 Hard Start Kit THPU32HP7Y and 3ARR3MARS65 units often found

and 3ARR3MARS65 units often found in high-performance HVACR systems

it offers superior thermal conductivity and resistance to high-temperature oxidative environments

replacing the worn electrode with this genuine Bard replacement part ensures exact fitment and electrical compatibility without the guesswork of universal alternatives

It will automatically re-engage the circuit once the system pressure falls below the differential setting relative to the cut-out point

Lennox 88M91 Hard Start Kit THPU32HP7Y and 3ARR3MARS65 units often foundThe Lennox 88M91 Hard Start Kit (Model LB 31200BAR) is an essential OEM compressor start assist designed to provide the necessary mechanical advantage during high torque startup conditions. As any veteran technician knows, repeated high amperage draws during the "inrush" phase degrade compressor motor windings and contactor points. This kit utilizes a high quality start capacitor (rated 176 216 MFD) and a precision potential relay to effectively drop