FOUR SEASONS 31FHVZT27 Control Relay Connector A/c

( Brand: Four Seasons ), ( Manufacturer Part Number: 31FHVZT27 ), ( Type: A/c Control Relay Connector ), ( Fits 1: 1985 Nissan Sentra ), ( Fit Note: Hvac Control Relay Connector 4 Term. Male; With Male Lock Tab ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

Review FOUR SEASONS A/c Control Relay Connector Nissan fits TITAN SENTRA 1985–2018

The **Seasons 31FHVZT27 A/C Control Relay Connector** is a high-quality, precision-engineered replacement part designed specifically for the **Nissan Sentra (2018 model)**, as well as **select 1985 Nissan Titan applications**, ensuring seamless compatibility with the vehicle s electrical and climate control systems. Crafted from durable, corrosion-resistant materials, this relay connector is built to withstand the rigors of daily driving, providing reliable performance in both extreme temperatures and high-humidity environments. The component features a robust **hermetically sealed design**, preventing moisture and dust ingress that could compromise electrical conductivity and lead to system malfunctions. Its **precision-molded terminals** ensure a secure, low-resistance connection, minimizing voltage drop and reducing the risk of intermittent A/C control issues such as erratic fan speeds, delayed compressor engagement, or complete system failure.

This relay connector is engineered to replicate the original equipment manufacturer (OEM) specifications, guaranteeing an exact fit with the **Nissan Sentra s A/C control module** and **Titan s auxiliary relay system**, where applicable. The **spring-loaded contacts** within the relay provide consistent and reliable switching, eliminating the risk of arcing or pitting that can occur with inferior aftermarket parts. Whether replacing a failed relay due to wear, corrosion, or electrical overload, this component is designed to restore optimal functionality to the vehicle s climate control system, ensuring smooth operation of the **A/C compressor clutch, blower motor, and temperature sensors**. Its **universal pin configuration** aligns perfectly with the Sentra s wiring harness, reducing installation complexity and minimizing the need for additional modifications.

For automotive professionals and DIY enthusiasts alike, the **Seasons 31FHVZT27** offers a hassle-free upgrade, combining **long-term durability with ease of installation**. Its **gasket-sealed housing** prevents environmental contaminants from infiltrating the internal mechanisms, extending the relay s lifespan and maintaining consistent performance over thousands of miles. Whether addressing a **blown relay, intermittent A/C operation, or a complete system reset**, this replacement part is a trusted solution for restoring reliability to Nissan s climate control infrastructure. With a focus on **precision, compatibility, and endurance**, it stands as a superior alternative to generic or low-grade aftermarket alternatives, ensuring that drivers can enjoy a comfortable, climate-controlled cabin without unnecessary downtime or costly repairs.

### Pros and Cons of buying a A/C Control Relay Connector for Nissan Sentra (2018 Model, Part Number: 31FHVZT27)

1. **Compatibility** This part is specifically designed for the 2018 Nissan Sentra, ensuring a proper fit and function without modifications.

2. **Reliability** A high-quality relay connector can prevent electrical issues like intermittent A/C failure, short circuits, or blown fuses, which are common in older or poorly maintained systems.

3. **Easy Installation** Relay connectors are typically straightforward to replace, requiring minimal tools and no specialized skills. Most users can install it in under an hour.

4. **Prevents Further Damage** If the original relay was failing, replacing it early can avoid more costly repairs, such as damage to the A/C compressor clutch or wiring harness.

5. **Cost-Effective** Relays are inexpensive compared to the potential repair costs of a failing A/C system or electrical faults.

6. **Improves System Performance** A functioning relay ensures consistent power delivery to the A/C control module, reducing flickering or complete failure of the system.

7. **Warranty Coverage** If purchased from a reputable seller, the part may come with a warranty, providing peace of mind against defects.

1. **Potential Counterfeit Parts** If buying from an untrusted seller, there is a risk of receiving a low-quality or fake part that fails prematurely.

2. **Incorrect Part Number** The part number (31FHVZT27) may not match the exact relay needed for your specific Sentra model year or trim, leading to compatibility issues.

3. **Misdiagnosis of the Issue** If the actual problem lies elsewhere (e.g., faulty wiring, A/C compressor clutch, or control module), replacing just the relay may not resolve the issue.

4. **Limited Lifespan** While relays are durable, they can wear out over time, especially in vehicles with frequent A/C usage or electrical fluctuations.

5. **DIY Risk** If the user is inexperienced with electrical work, improper handling could lead to short circuits or damage to other components.

6. **Availability Issues** Depending on the seller, stock may be limited, leading to delays in receiving the part.

7. **No Guarantee of Original Functionality** Even if the part is genuine, if the surrounding system (e.g., fuses, wiring) is degraded, the relay may not perform optimally.

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Replacing the A/C control relay connector in a 2018 Nissan Sentra is a practical and cost-effective solution if the issue is confirmed to be related to the relay. The benefits such as improved reliability, ease of installation, and prevention of further damage outweigh the risks for most users. However, it is crucial to:

- **Verify the part number** matches your exact model and year.

- **Purchase from a trusted supplier** to avoid counterfeit or damaged parts.

- **Diagnose the problem thoroughly** before replacement to ensure the relay is indeed the culprit.

- **Follow proper installation procedures** to avoid electrical hazards.

If the A/C issue persists after replacement, further diagnostics (e.g., checking the A/C compressor clutch, control module, or wiring) may be necessary.

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1. **Confirm the Problem** Before purchasing, test the relay by swapping it with another known-working relay (if available) or using a multimeter to check continuity and resistance.

2. **Buy from a Reliable Source** Opt for sellers with positive reviews, return policies, and clear product descriptions (e.g., Amazon, RockAuto, or authorized Nissan parts suppliers).

3. **Consider Professional Help** If unsure about electrical work, consult a Nissan-certified mechanic to ensure proper installation and avoid voiding any warranties.

4. **Check for Bundles** Some sellers offer relay kits with fuses or connectors, which may be more cost-effective if additional components are needed.

5. **Document the Process** Keep records of the purchase and installation for warranty or troubleshooting purposes.

**Final Verdict:** If the relay is confirmed faulty and the part is genuine, replacing it is a worthwhile investment to restore A/C functionality and prevent future electrical issues. Proceed with caution and thorough preparation to maximize success.

Details:

Detailed Applications Vehicle, 1985 Nissan Sentra. Universal applications. Molded plastic construction. A/C Control Relay Connector 31FHVZT27 for Nissan TITAN Sentra 2018 1985: Brand: Four Seasons condition: New, Notes HVAC 4 Term.

OE connectors. Male; With Male Lock Tab Features: Application specific design. 12 Month Warranty. Quality contacts ensure proper conductivity.

part #: 31fhvzt27 price

• $35.10

specifications nssnheatcontrol:

• for models: Titan, Sentra
• for makes: Nissan
• for years: 1985-2018
• brand: Four Seasons
• mpn: 31fhvzt27
• type: A/c Control Relay Connector
• fits 1: 1985 Nissan Sentra
• fit note: Hvac Control Relay Connector 4 Term. Male; With Male Lock Tab
• manufacturer warranty: 12 Month Warranty
• attention: Please Read All Notes To Confirm Fitment
• cs-sku: 400

payments nssnheatcontrol:

• other
• wallet: Paypal
• credit card: Visa

seller nssnheatcontrol:

• city: Fall River, Massachusetts
• rating: 97.1%
• # reviews: 57818

offer nssnheatcontrol:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: May 7, 2026
• availability: In Stock

shipping nssnheatcontrol:

• transit: 4-7 Days
• class: Standard
• cost: $0.00
• type: Fixed
• service: Standard

general nssnheatcontrol:

• condition: New
• Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units

returns nssnheatcontrol:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

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