1. NISSAN Controls & Control Units On Sale
  2. sku: 9338367916728604
  3. STANDARD PRODUCTS 51GTPN

STANDARD MOTOR PRODUCTS 51GTPN Control Relay A/c

fits model: Xterra. make: Nissan. year: 2000–2002.

51gtpn Standard Motor Products A/c Control Relay Fits Nissan Xterra 2000-2002

( Brand: Standard Motor Products ), ( Manufacturer Part Number: 51GTPN ), ( Part Type: Control Motor ), ( Compatible Make/model: Nissan Xterra ), ( Compatible Years: 2004 2002 2000 2003 2001 04 02 00 03 01 ), ( Fitment Info: A/c Compressor Control Relay ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review STANDARD MOTOR PRODUCTS A/c Control Relay Nissan fits XTERRA 2000–2002

The **Standard Motor 51GTPN Air Conditioning Control Relay** is a high-quality, precision-engineered electrical component designed specifically for Nissan Xterra models produced between 2000 and 2002. This relay serves as a critical control switch within the vehicle s climate control system, ensuring seamless operation of the air conditioning unit by managing the flow of electrical current to the compressor clutch and other related components. Crafted with durable materials and built to withstand the demanding conditions of automotive environments, this relay features a robust metal housing and high-grade internal contacts that resist corrosion, arcing, and wear, thereby extending its operational lifespan and maintaining reliable performance over thousands of miles.

The 51GTPN relay is engineered to meet or exceed OEM specifications, providing an exact replacement for the factory-equipped component in your Nissan Xterra. Its compact yet sturdy design allows for easy installation, fitting seamlessly into the vehicle s existing relay bay without the need for modifications. Inside, the relay incorporates a normally open (NO) contact configuration, which means it completes the electrical circuit when activated by the vehicle s control module, enabling the A/C compressor to engage and circulate refrigerant efficiently. This design ensures that the air conditioning system operates smoothly, delivering consistent cooling performance while minimizing strain on the vehicle s electrical system.

Beyond its functional reliability, the Standard Motor relay is also designed with user convenience in mind. Its clear labeling and standardized pin configuration make it straightforward to identify and install, even for those with limited automotive experience. The relay s compatibility with the Nissan Xterra s wiring harness ensures a secure and snug fit, reducing the risk of loose connections or electrical shorts that could lead to system malfunctions. Whether you re addressing a failing original relay, upgrading for enhanced durability, or performing routine maintenance, this relay offers a dependable solution that restores optimal functionality to your vehicle s air conditioning system.

For those seeking peace of mind, the Standard Motor 51GTPN relay is backed by a reputation for quality and performance, aligning with the brand s commitment to delivering parts that meet or surpass industry standards. Its use of high-grade materials and rigorous manufacturing processes ensures that it will perform consistently under the stress of daily driving, from extreme temperatures to varying electrical loads. By choosing this relay, you re not only restoring your Nissan Xterra s cooling system to full operational capacity but also investing in a component that contributes to the long-term reliability of your vehicle s electrical infrastructure.

### Pros and Cons of Buying a Standard Motor 51GTPN A/C Control Relay for a Nissan Xterra (2000-2002)

#### **Pros:**

1. **Compatibility** The 51GTPN relay is specifically designed for the Nissan Xterra (2000-2002) air conditioning control system, ensuring a direct fit without modifications.

2. **Reliability** Standard Motor is a reputable brand known for producing high-quality automotive relays that meet or exceed OEM standards, reducing the risk of premature failure.

3. **Easy Installation** Relays are simple to replace, typically requiring only basic tools and minimal wiring knowledge. The 51GTPN is a direct drop-in replacement for the factory relay.

4. **Cost-Effective** Replacing a faulty relay is significantly cheaper than repairing or replacing the entire A/C control module or compressor clutch, which can cost hundreds of dollars.

5. **Prevents Further Damage** A failing relay can cause intermittent A/C operation, leading to compressor clutch wear or electrical issues. Replacing it early prevents more extensive (and costly) repairs.

6. **Widely Available** The relay is easy to source from online retailers, auto parts stores, or directly from Standard Motor, ensuring quick replacement availability.

7. **Standardized Performance** Unlike aftermarket knockoffs, this relay is engineered to perform consistently, avoiding issues like overheating or erratic engagement of the A/C clutch.

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#### **Cons:**

1. **Potential Counterfeit Risk** Some online sellers may offer fake or low-quality relays under the Standard Motor brand. Purchasing from unverified sources could result in a defective or incompatible part.

2. **Limited Lifespan** While high-quality, relays are mechanical components and can wear out over time, especially if the vehicle s electrical system is prone to voltage spikes or poor grounding.

3. **No Warranty on Aftermarket Parts** Some retailers sell aftermarket relays without warranties, leaving you without recourse if the part fails shortly after installation.

4. **Diagnostic Confusion** If the A/C system still doesn t work after replacing the relay, it may indicate a deeper issue (e.g., faulty compressor clutch, low refrigerant, or wiring problems), requiring further diagnosis.

5. **Price Sensitivity** While affordable, some buyers may find the cost slightly higher than generic or no-name relays, though the trade-off in reliability is usually worth it.

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### **Conclusion:**

The **Standard Motor 51GTPN A/C Control Relay** is an excellent choice for restoring proper air conditioning function in a 2000-2002 Nissan Xterra. Its compatibility, reliability, and ease of installation make it a practical solution for a common but frustrating issue. However, buyers should prioritize purchasing from trusted sellers to avoid counterfeit parts and ensure long-term performance.

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### **Recommendation:**

1. **Buy from a Reputable Source** Purchase the relay from authorized dealers, reputable online retailers (e.g., Amazon, RockAuto, or Standard Motor s official site), or well-reviewed auto parts stores to guarantee authenticity.

2. **Verify Symptoms Before Replacement** Ensure the issue is indeed a faulty relay (e.g., A/C clutch not engaging, intermittent cooling, or relay clicking without activation). Test with a multimeter if possible.

3. **Consider a Bundle** If the relay is part of a larger A/C repair (e.g., clutch, fuse, or control module), replace related components simultaneously to prevent future problems.

4. **Follow Installation Guidelines** Double-check the wiring connections and ensure the relay is seated correctly to avoid short circuits or improper operation.

5. **Monitor Performance Post-Installation** After replacing the relay, test the A/C system thoroughly. If problems persist, consult a mechanic to diagnose other potential causes.

**Final Verdict:** For most owners dealing with A/C relay failure in their Xterra, the **Standard Motor 51GTPN relay is the best balance of cost, quality, and reliability**. It s a straightforward fix that can save time and money compared to more complex repairs. Just ensure you buy from a trusted source to avoid counterfeit parts.

Details:

Tested for performance and reliability. Contents: Relay. Connector Quantity: Detailed Applications Years: Vehicle: 2000 - 2002 Nissan Xterra.

Product Specifications Terminal Quantity: 4. Standard Motor Products A/C Control Relay fits Nissan Xterra 2000 - 2002 51GTPN: Brand: condition: New Notes: Compressor Relay, Features:Made from quality components for dependability. Mounting Bracket Included: No.

part #: 51gtpn price

  • $28.80

specifications nssnheatcontrol:

  • for models: Xterra
  • for makes: Nissan
  • for years: 2000-2002
  • brand: Standard Motor Products
  • mpn: 51gtpn
  • part type: Control Motor
  • compatible make/model: Nissan Xterra
  • compatible years: 2004 2002 2000 2003 2001 04 02 00 03 01
  • fitment info: A/c Compressor Control Relay
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

offer nssnheatcontrol:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • started: April 3, 2026

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  • # reviews: 23746
  • city: Fort Worth, Texas
  • rating: 99.1%

general nssnheatcontrol:

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

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shipping nssnheatcontrol:

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for models: xterra, for makes: nissan, for years: 2000-2002, part type: control motor, compatible make/model: nissan xterra, compatible years: 2004 2002 2000 2003 2001 04 02 00 03 01, fitment info: a/c compressor control relay, 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: 9338367916728604,
Standard Motor Products 51GTPN Is Similar To:
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1 offer $28.80 USD
  • New. Offer #1 priced at $28.80 + $0.00 shipping estimate = $28.80* total. Mounting Bracket Included: No. 2000-2002 Nissan Xterra.FREE SHIPPING

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