1. NISSAN Controls & Control Units On Sale
  2. sku: 9304658645308604
  3. API TECH 66PDWM

API SERVICE TECH 66PDWM Control Relay A/c

fits model: Quest. make: Nissan. year: 2014–2017.

66pdwm Api Service Tech A/c Control Relay Fits Nissan Quest 2004-2007 2009 2014-2017

( Brand: Api Service Tech ), ( Manufacturer Part Number: 66PDWM ), ( Part Type: Control ), ( Compatible Make/model: Nissan Quest ), ( Compatible Years: 2007 2006 2015 2004 2005 2009 2014 2016 2017 07 06 15 04 05 09 14 ), ( Fitment Info: Service Tech 6 Blade Terminal; Brown; Square; Skirted ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review API SERVICE TECH A/c Control Relay Nissan 2004 2007 2009 fits QUEST 2014–2017

The **66PDWM A/C Control Relay** is a precision-engineered electrical component specifically designed to interface seamlessly with the climate control systems of select Nissan Quest models spanning the years **2004 through 2007, 2009, and 2014 to 2017**. This high-quality relay serves as a critical intermediary between the vehicle s air conditioning (A/C) control module and the compressor clutch, ensuring smooth, reliable activation and deactivation of the A/C system. Crafted with durable materials and engineered to withstand the demanding conditions of automotive electrical systems, this relay is built to prevent overheating, arcing, or premature failure common issues that can disrupt the A/C s performance or even lead to costly repairs. Its compact yet robust design fits perfectly within the vehicle s wiring harness, maintaining a secure connection while minimizing the risk of loose contacts or signal interference. Whether replacing a faulty original relay or upgrading for enhanced durability, this aftermarket component delivers consistent performance, reducing the likelihood of erratic A/C engagement, weak cooling, or complete system failure. Ideal for both professional mechanics and DIY enthusiasts, the **66PDWM A/C Control Relay** ensures that your Nissan Quest s climate control operates with precision, efficiency, and long-term reliability, keeping passengers comfortable year-round.

### **Pros and Cons of buying a API Service 66PDWM A/C Control Relay for Nissan Quest (2004 2007, 2009, 2014 2017)**

#### **Pros:**

1. **Compatibility** The relay is specifically designed for the listed Nissan Quest models, ensuring a direct fit without modification. This reduces the risk of installation errors that could damage the vehicle s electrical system.

2. **Reliability** API Service is a reputable brand known for producing high-quality automotive parts. The relay is likely to be durable and resistant to wear, reducing the likelihood of frequent failures.

3. **Easy Installation** Relays are relatively simple components, and this one should be straightforward to replace, even for a DIYer with basic mechanical skills. The manufacturer likely provides clear wiring diagrams or installation instructions.

4. **Cost-Effective Fix** If the A/C control relay is faulty, replacing it is often cheaper than diagnosing other potential issues (e.g., faulty A/C compressor clutch, blown fuses, or wiring problems). This makes it a cost-effective solution for restoring A/C functionality.

5. **Prevents Further Damage** A failing relay can cause intermittent A/C operation or even damage the compressor clutch if left unaddressed. Replacing it early can prevent more expensive repairs down the line.

6. **Warranty Coverage** API Service parts typically come with a warranty (usually 1 2 years), providing peace of mind in case the relay fails prematurely.

7. **Aftermarket Support** Since this is an aftermarket part, it is widely available from online retailers, auto parts stores, and specialty suppliers, making it easy to source if needed.

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#### **Cons:**

1. **Potential Counterfeit Risk** Some aftermarket parts, especially those sold on third-party platforms, may be counterfeit or low-quality. Buying from untrusted sellers could result in a defective or incompatible relay.

2. **Misdiagnosis Risk** If the A/C issue is not actually caused by the relay (e.g., low refrigerant, faulty compressor clutch, or electrical shorts), replacing the relay alone may not solve the problem. A proper diagnosis is essential before purchasing.

3. **Limited Brand Loyalty** While API Service is reliable, some vehicle owners prefer OEM (original equipment manufacturer) parts for long-term reliability. An OEM relay might be more expensive but could offer better longevity.

4. **Installation Challenges** Depending on the vehicle s wiring layout, accessing the relay may require some disassembly (e.g., removing the fuse box cover or dashboard panels). Those uncomfortable with electrical work might need a professional to install it.

5. **Compatibility Variations** While the relay is listed for multiple model years, slight variations in wiring or mounting between years could cause confusion during installation. Double-checking the vehicle s specific year and trim is crucial.

6. **Price Sensitivity** Compared to OEM parts, aftermarket relays are generally cheaper, but some buyers may perceive them as less premium. However, for most consumers, the price difference is negligible given the performance.

7. **Return or Replacement Issues** If the relay arrives damaged or is incompatible, returning it may require proof of purchase and could involve shipping costs, especially for online purchases.

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### **Conclusion:**

The **API Service 66PDWM A/C Control Relay** is a **practical and cost-effective solution** for restoring A/C functionality in the specified Nissan Quest models, provided the issue is confirmed to be relay-related. Its **direct compatibility, reliability, and ease of installation** make it a strong choice for DIYers and professionals alike. However, **buyers must ensure they purchase from a trusted source** to avoid counterfeit parts and **verify the root cause of the A/C problem** before replacement to prevent unnecessary expenses.

For most consumers, the **pros outweigh the cons**, especially when considering the **affordability and accessibility** of aftermarket parts. If budget is not a concern and long-term reliability is prioritized, an **OEM relay** could be a safer alternative, but the API Service part offers a **good balance of quality and value**.

### **Recommendation:**

- **Buy from a reputable seller** (e.g., Amazon, RockAuto, local auto parts stores with return policies) to ensure authenticity.

- **Confirm the A/C issue is relay-related** by testing the relay with a multimeter or replacing it temporarily to see if the problem resolves.

- **Follow the installation instructions carefully** and refer to the vehicle s wiring diagram if needed.

- **Consider OEM if available** only if the aftermarket part fails or if the vehicle is a high-mileage or luxury model where reliability is critical.

For the average Nissan Quest owner facing A/C control issues, the **API Service relay is a solid, budget-friendly choice** that balances performance and ease of use.

Details:

Terminal Gender: Male. API A/C Control Relay fits Nissan Quest 2004 - 2007, 2009, 2014 - 2017 66PDWM: Brand: condition: New Notes: SERVICE TECH 6 Blade Terminal; Brown; Square; Skirted, Specifications Terminal Type. Mounting Bracket Included: No. Terminal Quantity: 6.

12 Month Warranty. Detailed Applications Years: Vehicle: 2004 - 2007, 2009, 2014 - 2017 Nissan Quest.

part #: 66pdwm price

  • $40.85

specifications nssnheatcontrol:

  • for models: Quest
  • for makes: Nissan
  • for years: 2014-2017
  • brand: Api Service Tech
  • mpn: 66pdwm
  • part type: Control
  • compatible make/model: Nissan Quest
  • compatible years: 2007 2006 2015 2004 2005 2009 2014 2016 2017 07 06 15 04 05 09 14
  • fitment info: Service Tech 6 Blade Terminal; Brown; Square; Skirted
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

seller nssnheatcontrol:

  • rating: 99.1%
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  • city: South San Francisco, California

offer nssnheatcontrol:

  • sold: 0
  • quantity: 1
  • started: March 26, 2026
  • availability: In Stock
  • options: Ship-to-home

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  • credit card: Discover

returns nssnheatcontrol:

  • paid by: Seller
  • time: 30 Days
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shipping nssnheatcontrol:

  • type: Fixed
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general nssnheatcontrol:

  • condition: New
  • Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units
for models: quest, for makes: nissan, for years: 2014-2017, part type: control, compatible make/model: nissan quest, compatible years: 2007 2006 2015 2004 2005 2009 2014 2016 2017 07 06 15 04 05 09 14, fitment info: service tech 6 blade terminal; brown; square; skirted, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > air conditioning heating > hvac controls control units, sku: 9304658645308604,
Api Service Tech 66PDWM Is Similar To:
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1 offer $40.85 USD
  • New. Offer #1 priced at $40.85 + $0.00 shipping estimate = $40.85* total. Product Specifications. 2004-2007, 2009, 2014-2017 Nissan Quest.FREE SHIPPING

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