NISSAN B7143-00Q0A Leaf Ac Heater Ptc Motor A/c B7143-00Q0K F020

( Manufacturer Part Number: B7143-00Q0A ), ( Model: LEAF ), ( Part Type: Ac Heater Motor ), ( Part Category: Electric-motor-misc ), ( Storage Location: 2d-x12 ), ( Fitment Type: Direct Replacement ), ( Genuine Oem: Yes ), ( Part Source: Genuine Oem ), ( Name: Module ), ( Fitment Notes: Check Listing Description For Exact Fitment. ), ( Manufacturer Warranty: 90 Day )

Review NISSAN Leaf A/c Ac Heater Ptc Motor Oem fits 2011–2012

The **Nissan B7143-00Q0A (2011-2012 Nissan Leaf) A/C Heater Positive Temperature Coefficient (PTC) Motor**, along with its variant **B7143-00Q0K (F020 model, 2011-2012)**, is a critical component of the vehicle s climate control system, ensuring precise and efficient temperature regulation within the cabin. Designed specifically for Nissan s pioneering all-electric Leaf models, this PTC motor serves as the heart of the vehicle s heating and air conditioning (A/C) blower system, controlling airflow speed through a variable resistance mechanism. Unlike traditional brush-type motors, this PTC motor utilizes a ceramic-based positive temperature coefficient material that adjusts its electrical resistance in response to temperature changes, allowing for smooth, incremental adjustments in fan speed without the wear and tear associated with mechanical brushes. This design enhances durability, reduces noise, and improves overall reliability, making it an ideal choice for the Leaf s compact yet high-performance climate control requirements.

The **B7143-00Q0A** is compatible with the **2011 and 2012 Nissan Leaf models**, including both the standard and slightly revised **F020 trim**, while the **B7143-00Q0K** variant is tailored specifically for the **F020 model year**, ensuring a perfect fit for the updated electrical and mechanical configurations introduced in these iterations. This motor integrates seamlessly with the Leaf s advanced HVAC system, which includes a heat pump for efficient winter heating and a high-efficiency A/C compressor for summer cooling. By modulating airflow from gentle breezes to full-force ventilation, the PTC motor plays a pivotal role in maintaining passenger comfort across varying environmental conditions, whether navigating urban commutes or long-distance highway travel.

Constructed with high-quality materials and engineered for longevity, this PTC motor is built to withstand the Leaf s unique electrical architecture, which relies on a 400-volt battery system. Its robust construction minimizes the risk of electrical shorts or mechanical failure, even under the demanding thermal cycles associated with frequent climate control adjustments. The motor s compact yet robust design also contributes to the Leaf s signature sleek, minimalist interior, where every component is optimized for both functionality and space efficiency. Whether replacing a worn-out original unit or upgrading an existing system, this PTC motor ensures that the Leaf s climate control operates with the same precision and reliability as the rest of its innovative powertrain and drivetrain systems. For owners seeking to maintain their Leaf s performance and comfort, this component is an essential part of preserving the vehicle s original functionality and extending its operational lifespan.

### **Pros and Cons of Buying a Nissan Leaf A/C Heater PTC Motor (B7143-00Q0A for 2011-2012, B7143-00Q0K F020 for 2011-2012)**

#### **Pros**

1. **Direct Compatibility** These parts are officially manufactured for the 2011-2012 Nissan Leaf, ensuring a proper fit without modification.

2. **Reliability** Nissan s OEM components are designed to meet the vehicle s specifications, reducing the risk of premature failure compared to aftermarket knockoffs.

3. **Warranty Coverage** If purchased from an authorized dealer or Nissan-approved supplier, these parts may come with a limited warranty, providing peace of mind.

4. **Performance Consistency** The Positive Temperature Coefficient (PTC) motor regulates airflow and heating efficiency, preventing overheating and ensuring smooth operation of the HVAC system.

5. **Long-Term Durability** High-quality materials and engineering reduce wear over time, potentially extending the lifespan of the HVAC system.

6. **Ease of Installation** Since these are genuine parts, they align with the vehicle s wiring and mounting points, simplifying replacement for DIYers or mechanics.

7. **Support for Resale Value** Using OEM parts can make future repairs or resale easier, as buyers prefer vehicles with original components.

#### **Cons**

1. **Higher Cost** OEM parts are significantly more expensive than aftermarket alternatives, which may be a barrier for budget-conscious buyers.

2. **Potential Overkill for Minor Issues** If the failure is isolated (e.g., a blown fuse or loose wiring), replacing the entire PTC motor may be unnecessary, making it a costly overhaul.

3. **Limited Availability** Depending on the region, these parts may be harder to source quickly, especially if Nissan discontinues production of the Leaf.

4. **No Performance Upgrades** Unlike aftermarket high-flow fans or upgraded compressors, these parts do not enhance cooling or heating efficiency beyond stock specifications.

5. **Potential Counterfeit Risks** If purchasing from untrusted sellers (e.g., eBay, Facebook Marketplace), there s a risk of receiving fake or low-quality parts that fail early.

6. **Labor Costs** If professional installation is required, labor fees can add to the total expense, making the repair more costly than expected.

7. **Environmental Concerns** Since the Leaf is an electric vehicle, recycling or disposing of old HVAC components may require special handling, though this is less of an issue for the PTC motor itself.

---

### **Conclusion**

The **B7143-00Q0A (2011-2012) and B7143-00Q0K F020 (2011-2012) Nissan Leaf A/C heater PTC motors** are high-quality, reliable replacements that ensure proper functionality of the vehicle s climate control system. They are ideal for owners who prioritize **durability, warranty coverage, and long-term reliability**, even if the upfront cost is higher. However, if the issue is minor (e.g., wiring, fuse, or sensor failure), opting for an aftermarket part or diagnostic testing first may be more cost-effective.

For most serious Leaf owners facing persistent HVAC issues, these OEM parts are the **best choice** due to their proven performance and compatibility. If budget is a concern, verifying the exact cause of failure (e.g., checking for blown fuses, corroded connectors, or compressor issues) before purchasing can save money.

### **Recommendation**

- **Buy from an authorized Nissan parts dealer or a reputable online retailer** (e.g., RockAuto, Nissan Parts Direct) to ensure authenticity and warranty coverage.

- **Compare pricing** from multiple sources to get the best deal, but avoid significantly discounted parts that may be counterfeit.

- **Consider professional installation** if unsure about wiring or HVAC system intricacies, as improper handling can lead to further damage.

- **Check for aftermarket alternatives** (e.g., Denso or Delphi PTC motors) if cost is a major concern, but verify compatibility and reviews before purchasing.

- **Document the repair** for future reference, especially if selling the vehicle, as OEM parts can positively impact resale value.

Ultimately, these parts are a **solid investment** for Leaf owners who want to restore their HVAC system to factory specifications with confidence.

Details:

2011 - 2012 Nissan Leaf A/C AC Heater PTC Motor B7143-00Q0K, F020, OEM, 2011, 2012, Fitment Information. God Bless You. Part number: B7143-00Q0A, Placement on Vehicle: condition: Used item, refer to images for item condition. May have wear and tear, Color: Images: All images are of the actual item.

part #: b714300q0a prices

• $390.03-$1205.86

specifications nssnheatcontrol:

• for makes: Nissan
• for years: 2011-2012
• mpn: B7143-00q0a
• model: Leaf
• part type: Ac Heater Motor
• part category: Electric-motor-misc
• storage location: 2d-x12
• fitment type: Direct Replacement
• genuine oem: Yes
• part source: Genuine Oem
• name: Module
• fitment notes: Check Listing Description For Exact Fitment.
• manufacturer warranty: 90 Day

offer nssnheatcontrol:

• started: June 11, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0
• best offers: True
• availability: In Stock

seller nssnheatcontrol:

• city: Rancho Cordova, California
• # reviews: 29994
• rating: 99.7%

general nssnheatcontrol:

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

shipping nssnheatcontrol:

• carrier: USPS, FedEx
• cost: $0.00
• transit: 2-6 Days
• type: Fixed
• class: Standard, Expedited
• service: USPS First Class, USPS Priority Mail, FedEx Ground / FedEx Home Delivery

returns nssnheatcontrol:

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

payments nssnheatcontrol:

• wallet: Apple-pay
• credit card: Visa
• other

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