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Top rated automotive replacement auxiliary heater and ac control relays

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Top rated automotive replacement auxiliary heater and ac control relays

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

  1. Best overall

    Four Seasons 35996 A/C Relay

    4.6/5 $10-$15

    High-quality A/C relay compatible with many vehicle makes; known for reliability and long service life.

    • Durable construction
    • Easy plug-in installation
    • Good value for money
    • Limited to certain vehicle models
    View on Amazon manufacturer site
  2. Best for durability

    Beck Arnley 201-2133 Auxiliary Heater Relay

    4.5/5 $12-$18

    OE-quality auxiliary heater relay designed to meet or exceed OEM specs; reliable performance in extreme temperatures.

    • OE-compatible
    • Rugged build
    • Consistent switching
    View on Amazon manufacturer site
  3. Best budget pick

    Standard Motor Products RY-613 A/C Relay

    4.4/5 $8-$12

    Affordable A/C relay that offers solid performance; widely available and easy to install.

    • Low cost
    • Widely compatible
    • Simple replacement
    • Not for heavy-duty use
    View on Amazon manufacturer site
  4. Best premium

    Denso 156700-1410 A/C Relay

    4.7/5 $15-$25

    Premium A/C relay with high current capacity and longevity; often used as OEM equipment.

    • High current rating
    • OEM quality
    • Long lifespan
    • Higher price
    View on Amazon manufacturer site
  5. Best for GM vehicles

    ACDelco 15-7278 A/C Relay

    4.3/5 $10-$16

    Genuine GM A/C relay designed for direct fit in GM models; ensures proper operation.

    • GM direct fit
    • Reliable performance
    • OE specification
    • Limited compatibility
    View on Amazon manufacturer site
  6. Best for European cars

    BOSCH 0 332 003 509 A/C Relay

    4.5/5 $12-$18

    Bosch A/C relay with robust design; excellent choice for European vehicle applications.

    • Trusted brand
    • Compact design
    • Dependable switching
    • May require adapter for some cars
    View on Amazon manufacturer site
  7. Best value

    Wells Vehicle Electronics A/C Relay

    4.2/5 $8-$14

    Cost-effective A/C relay that meets OE standards; good for budget-conscious repairs.

    • Affordable
    • Good quality
    • Easy to install
    • Less common brand
    View on Amazon manufacturer site

Buying advice

When choosing an auxiliary heater or A/C control relay, ensure compatibility with your vehicle's make, model, and year. Pay attention to the relay's ampere rating and terminal configuration. Opt for reputable brands like Bosch, Denso, or Standard Motor Products for reliability. If you drive a specific brand (e.g., GM, European), consider OE-specific relays for a perfect fit.

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