1. Exhaust & Emission Parts To Buy
  2. sku: 20817255972667983
  3. MAZDA PY8V-20-371

MAZDA PY8V-20-371 Connector Hose

fits make: Mazda. year: 2018–2021.

Py8v-20-371 Mazda Genuine Connector Hose

( Manufacturer Part Number: PY8V-20-371 ), ( Part Type: Hose ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2018 2019 2020 2021 ), ( Parts Included: Only Part Reference 21 On The Diagram Is Included )

Review MAZDA Genuine Connector Hose fits 2018–2021

The **Mazda PY8V-20-371 Connector Hose** is a precision-engineered automotive component designed to ensure reliable fluid transfer and system integrity within Mazda vehicles equipped with advanced cooling, power steering, or transmission cooling applications. Crafted from high-quality **thermoplastic elastomer (TPE) or reinforced rubber**, this hose is engineered to withstand the demanding conditions of modern automotive systems, including exposure to extreme temperatures, chemical exposure from engine coolants, and mechanical stress from vibration and pressure fluctuations. The **PY8V-20-371** features a robust **reinforced spiral wire braid or fabric reinforcement**, which enhances its durability by preventing collapse under vacuum conditions and resisting kinking, ensuring consistent flow and longevity even in high-performance or high-stress environments. Its **precision-molded design** guarantees a secure, leak-free connection to compatible fittings, often featuring a **clamp-style or push-fit coupling** for easy installation without the need for specialized tools, though proper torque specifications should always be followed to maintain optimal performance. This hose is specifically tailored to fit Mazda models requiring a **20mm (5/8") inner diameter** and a **371mm (14.6 inches) length**, making it an ideal replacement for OEM hoses in applications such as the **power steering return line, transmission cooler line, or auxiliary cooling circuits**, where reliability and performance are critical. Whether used in daily driving scenarios or high-mileage applications, the **PY8V-20-371** delivers consistent fluid flow, minimizes the risk of leaks or bursts, and contributes to the overall efficiency and longevity of the vehicle s hydraulic systems. For optimal results, it is recommended to inspect the hose for signs of wear, cracking, or swelling during routine maintenance and replace it as part of a preventive maintenance strategy to avoid potential system failures.

**Pros and Cons of buying a Mazda PY8V-20-371 Connector Hose**

The Mazda PY8V-20-371 connector hose is a part commonly used in the cooling system of certain Mazda vehicles, particularly those with the Skyactiv-G engine. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Direct Fitment and Compatibility**

The PY8V-20-371 hose is designed as an original equipment (OEM) replacement part, meaning it is engineered to match the exact specifications of Mazda s original component. This ensures a proper fit without modifications, reducing the risk of leaks or improper installation.

2. **Reliability and Durability**

Mazda uses high-quality materials in its OEM parts, including reinforced rubber and durable clamps. A genuine or high-quality aftermarket hose will resist cracking, kinking, or degradation over time, especially in vehicles with higher mileage or those exposed to extreme temperatures.

3. **Prevents Cooling System Failures**

The cooling system relies on a properly functioning hose to circulate coolant efficiently. A failing hose can lead to overheating, coolant leaks, or even engine damage. Replacing a worn-out hose with a new one prevents these issues and extends the lifespan of the cooling system.

4. **Easy Installation**

The hose is relatively straightforward to replace, requiring basic tools and mechanical knowledge. Most DIYers can complete the job without professional assistance, saving labor costs.

5. **Warranty Coverage (If Purchasing from Mazda or Authorized Dealers)**

If buying directly from Mazda or an authorized dealer, the part may come with a warranty, providing peace of mind against premature failure.

6. **Cost-Effective Long-Term Solution**

While the upfront cost may be higher than some generic aftermarket alternatives, a high-quality hose lasts longer and reduces the likelihood of repeated replacements or costly repairs.

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### **Cons**

1. **Higher Upfront Cost Compared to Aftermarket Options**

Genuine Mazda parts or even reputable aftermarket brands (e.g., ACDelco, Denso, or Gates) tend to be more expensive than no-name or budget aftermarket hoses. This can be a drawback for owners on a tight budget.

2. **Potential for Counterfeit or Low-Quality Parts**

If purchasing from untrusted sellers (e.g., third-party online marketplaces without verification), there is a risk of receiving a counterfeit or substandard hose. These may fail prematurely, leading to additional expenses and frustration.

3. **Limited Availability Outside Mazda Dealerships**

While many aftermarket parts are widely available, OEM Mazda hoses may require ordering through Mazda dealerships, authorized distributors, or specialized online retailers. This can sometimes result in longer wait times for delivery.

4. **Overkill for Minor Issues**

If the hose failure is isolated and the rest of the cooling system is in good condition, some owners might opt for a cheaper aftermarket solution instead of investing in a Mazda-specific part. However, this is not recommended for long-term reliability.

5. **Potential for Overcomplicating Maintenance**

Some owners may feel pressured to replace the entire cooling system or other components when only the hose is failing, leading to unnecessary expenses. However, this is more of a user error than a flaw in the part itself.

6. **Environmental and Ethical Concerns (If Buying New OEM)**

Manufacturing new OEM parts contributes to waste and resource consumption. Some buyers may prefer recycled or remanufactured parts as a more sustainable alternative, though these may not always be available for hoses.

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### **Conclusion**

The Mazda PY8V-20-371 connector hose is a critical component for maintaining the integrity of your vehicle s cooling system. Its primary advantage lies in its reliability, direct fitment, and long-term performance, which justify the higher cost for those prioritizing durability and peace of mind. However, the higher price point and potential for counterfeit parts in the aftermarket can be drawbacks for budget-conscious buyers.

For most Mazda owners, investing in a **high-quality aftermarket hose from a reputable brand** (such as Gates, ACDelco, or Denso) offers a strong balance between cost and reliability. These brands often meet or exceed OEM standards while being more affordable. If budget is not a concern and you prefer the assurance of a Mazda-approved part, purchasing directly from an authorized dealer ensures authenticity and warranty coverage.

Ultimately, the best choice depends on your priorities: **prioritize quality and longevity** (opt for OEM or premium aftermarket), or **balance cost and performance** (choose a trusted aftermarket brand).

### **Recommendation**

For the majority of Mazda owners, a **Gates, ACDelco, or Denso aftermarket hose** is the ideal compromise offering OEM-level quality at a lower cost while being widely available. If you have access to a Mazda dealership or prefer the absolute best assurance, purchasing the genuine OEM part is the safest option. Always verify the seller s reputation to avoid counterfeit products, and ensure the hose is compatible with your specific vehicle model and year. Regularly inspect your cooling system hoses to catch wear before it leads to more serious issues.

Details:

Connector hose. Genuine Mazda Parts. Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

Parts must be resalable and in the original packaging.

part #: py8v20371 prices

  • $41.34-$47.05

specifications emissyste:

  • for makes: Mazda
  • for years: 2018-2021
  • mpn: Py8v-20-371
  • part type: Hose
  • genuine oem: Yes
  • manufacturer warranty: 1 Year
  • universal fitment: Direct Replacement
  • year: 2018 2019 2020 2021
  • parts included: Only Part Reference 21 On The Diagram Is Included

offer emissyste:

  • started: March 18, 2026
  • quantity: 2
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock

general emissyste:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
  • condition: New

payments emissyste:

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

shipping emissyste:

  • type: Fixed
  • transit: 3-9 Days
  • service: Standard
  • cost: $25.50
  • class: Standard

seller emissyste:

  • # reviews: 1030
  • rating: 100.0%
  • city: Chesapeake, Virginia

returns emissyste:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller
for makes: mazda, for years: 2018-2021, part type: hose, genuine oem: yes, manufacturer warranty: 1 year, universal fitment: direct replacement, year: 2018 2019 2020 2021, parts included: only part reference 21 on the diagram is included,
manufacturer: mazda, category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 20817255972667983,
Mazda PY8V-20-371 Is Similar To:
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2 offers $41.34–$47.05 USD
  • New. Offer #1 priced at $41.34 + $25.50 shipping estimate = $66.84* total. Genuine Mazda Parts.+$25.50 shipping
  • New. Offer #2 priced at $47.05 + $24.85 shipping estimate = $71.90* total. +$24.85 shipping

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