Sta-Rite HD Pool Pump Motor — 1.50 kW three-phase (salt-water version) (RS203)

Genuine Sta-Rite / Pentair replacement pump motor for the Sta-Rite HD filtration-pump range, rated at 1.50 kW three-phase (salt-water version). This is a direct drop-in OEM part — same bolt pattern, same shaft key, same electrical connections as the motor that shipped in the original pump, so no adapter or rewiring is needed on a same-spec swap.

This variant fits the following Sta-Rite HD models: P-STRHD-203E3. The motor block includes the pre-wired capacitor stack and thermal overload protection. Its salt-water variant carries the corrosion-resistant winding treatment and stainless hardware you want on any pump running electro-chlorinated water. Compatible with the standard Sta-Rite HD seal plate + volute assembly.

When to replace the motor: humming without starting, tripped thermal overload that won’t reset, or bearing noise that persists after a full water flush. Order the matching mechanical seal + o-rings at the same time — an old seal will fail within weeks against a new motor bearing and take out your fresh investment.