Compressor start relays from US brands and US-based sellers
6 US brands and sellers surfaced here at $24.50 to $81.55, each verified from Amazon's own published seller info. Last verified August 21, 2026.
A compressor start relay only does its job if the relay type and ratings match your compressor exactly, not just the general shape of the old one. Throwaways skip that matching step, use thinner internal contacts, and skimp on the potting that keeps the coil from cooking itself.
What to look for in a good compressor start relay
- Relay type. Check whether your compressor needs a PTC relay or a current/potential relay, since swapping the wrong type in gets you hard starts or a burned-out compressor within a season.
- Terminal gauge. Real spade terminals are sized to grip the compressor's contacts tightly, while cheap stamped ones loosen and arc after a few thermal cycles.
- Potting and housing. A relay built to last has the coil sealed in epoxy potting inside the case, not just dropped into a hollow plastic shell that warps once it gets warm.
- Printed ratings. Look for a clearly stamped amp and voltage rating on the housing itself, not just on the cardboard backing, since that's the label a corner-cutter skips first. In this category the legitimate options run about $25 to $82, and anything priced below that range is usually missing one of these parts.
We read each seller's registered country from Amazon's own published seller info. We don't claim anything here is manufactured in the US, only that you're buying from a US brand or a US-based seller.
Quick comparison
Confirmed US brands and sellers
6 listings where Amazon's own seller info places the seller in the US. Each badge says which.
MARS 16025 220V Potential, 35 AMP, 3ARR3J4A4, Starting Relay
Packard Titan Potential Relay Tr65
Supco OLK1786 Compressor Relay Start Kit Replaces Whirlpool 8201786, 1177466, 2188829, 2188830
Tecumseh Product Co. K7111 Tecumseh start relay electrical service parts
Trane Relay, Start, 50A Coil, 502 Continuous Coil Rating
White-Rodgers Sure Switch Relay 49P11-843
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