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Top rated automotive replacement air conditioning compressor relays

AI-generated summary · updated July 27, 2026 · verify details before purchase.

  1. Best overall

    Four Seasons 35702 A/C Compressor Relay

    4.5/5 $8-$15

    High-quality OEM-style relay with excellent durability and compatibility for many vehicles.

    • OEM fit
    • Reliable performance
    • Affordable price
    • May not fit some imports
  2. Best OEM replacement

    ACDelco 15-8222 Air Conditioning Compressor Relay

    4.6/5 $10-$20

    Genuine ACDelco part ensures perfect fit and long service life for GM vehicles.

    • OEM quality
    • Direct fit for GM
    • Trusted brand
    • Slightly higher price
  3. Best budget pick

    Standard Motor Products RY-613 AC Relay

    4.4/5 $7-$12

    Economical yet reliable relay suitable for many Asian and domestic vehicles.

    • Very affordable
    • Wide application
    • Good build
    • Not for heavy-duty use
  4. Best premium

    Denso 947003-2140 A/C Compressor Relay

    4.7/5 $12-$25

    High-performance relay from Denso, ideal for Toyota and Honda vehicles.

    • Excellent quality
    • Long lifespan
    • Precise switching
    • Cost more
  5. Best value

    UAC HR 1422C A/C Compressor Relay

    4.3/5 $6-$10

    Combines low price with reliable performance for many common vehicles.

    • Low cost
    • Works as expected
    • Compact design
    • Less known brand
    • Plastic housing feels less robust
  6. Best for imports

    Santech MT2918 Air Conditioning Relay

    4.4/5 $8-$14

    Designed for Asian and European vehicles, with solid electrical specs.

    • Imports specialist
    • Durable
    • Good reviews
    • Limited availability
  7. Omega Environmental Technologies 963-10004 A/C Relay

    4.2/5 $9-$18

    Versatile relay suitable for many domestic cars and trucks.

    • Wide vehicle coverage
    • Sturdy construction
    • Fitment may require modification
  8. Best multi-pack

    EPAuto 4-Pin 30/40A Relay (Pack of 2)

    4.5/5 $7-$10

    Two-pack of standard 30/40A relays that can be used for A/C compressors and other accessories.

    • Great value for two
    • Versatile use
    • Rated 30/40A
    • Not vehicle-specific

Buying advice

When choosing an A/C compressor relay, confirm the correct pin configuration (usually 4-pin or 5-pin) and amperage rating for your vehicle. OEM brands like ACDelco or Denso often ensure exact fit and reliability, while aftermarket options like Four Seasons or Standard Motor Products offer good value. If unsure, consult your vehicle's repair manual or check the original relay for part numbers.

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