1. Exhaust & Emission Parts To Buy
  2. sku: 20329125617861741
  3. MAZDA B6CA-13-972

MAZDA B6CA-13-972 Hose Evaporative

fits make: Mazda.

B6ca-13-972 Mazda Genuine Hose Evaporative

( Manufacturer Part Number: B6CA-13-972 ), ( Part Type: Hose ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement )

Review MAZDA Genuine Hose Evaporative

The **Mazda B6CA-13-972 Evaporative Emission Control (EVAP) Hose** is a precision-engineered component designed specifically for Mazda vehicles equipped with the B6 engine family, including models such as the Mazda6, Mazda9, and Mazda MPV from the late 1990s and early 2000s. This high-quality hose is crafted from durable, heat-resistant synthetic rubber, ensuring long-lasting performance under the demanding conditions of an engine bay, where it must withstand exposure to engine heat, fuel vapors, and fluctuating temperatures. The EVAP system plays a critical role in reducing harmful emissions by capturing and recirculating fuel vapors back into the engine s intake manifold, preventing them from escaping into the atmosphere. The B6CA-13-972 hose is meticulously designed to fit seamlessly into Mazda s EVAP system, connecting key components such as the charcoal canister, fuel tank, and purge valve with precision-engineered fittings that guarantee a secure, leak-free connection. Its robust construction minimizes the risk of cracking, kinking, or degrading over time, which is essential for maintaining optimal EVAP system functionality and ensuring compliance with emissions regulations. Whether used for original equipment replacement or as a high-performance upgrade, this hose is built to deliver reliable, hassle-free operation, helping to preserve engine efficiency and extend the lifespan of the vehicle s emissions control system.

**Pros and Cons of Buying a Mazda B6CA-13-972 Evaporative Hose**

The Mazda B6CA-13-972 evaporative hose is a critical component of the vehicle s emissions control system, specifically part of the evaporative canister purge system. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros of Buying a Mazda B6CA-13-972 Evaporative Hose**

1. **Compatibility and Fitment**

The hose is designed specifically for Mazda models equipped with the B6CA engine (common in vehicles like the Mazda 626, MPV, and some early-model Proteg and Millenia from the late 1990s). This ensures a precise fit, reducing the risk of leaks or improper installation. Using an OEM or high-quality aftermarket part minimizes the chance of compatibility issues.

2. **Reliability of OEM Parts**

If purchasing an original equipment manufacturer (OEM) part, you benefit from Mazda s engineering standards, which prioritize durability and performance. OEM hoses are typically made from high-quality materials that resist cracking, kinking, or degradation over time, especially when exposed to heat, fuel vapors, or engine bay conditions.

3. **Prevents Emissions Failures**

The evaporative hose is part of the vehicle s canister purge system, which vents fuel vapors from the fuel tank to the engine for combustion rather than releasing them into the atmosphere. A faulty hose can lead to an evaporative emissions control (EVAP) system failure, triggering a check engine light (typically code P0440, P0451, or P0452). Replacing the hose resolves this issue, ensuring the vehicle passes emissions tests and avoids unnecessary repair costs.

4. **Cost-Effective Repair**

Compared to other engine-related repairs, the evaporative hose is relatively inexpensive. Prices for OEM or aftermarket hoses typically range from $15 to $50, depending on the source (e.g., Mazda dealership, online retailers, or auto parts stores). Labor costs are minimal since the replacement is straightforward, often requiring only basic tools and a few minutes of work.

5. **Easy Installation**

The hose is typically located near the fuel tank or evaporative canister, connected via clamps or quick-connect fittings. Most DIYers can replace it without specialized tools or mechanical expertise. This makes it an ideal part for owners who prefer hands-on maintenance or those looking to avoid dealer labor costs.

6. **Extends Engine Lifespan**

A properly functioning EVAP system ensures that fuel vapors are safely vented and combusted, reducing the risk of fuel system clogs or pressure buildup. Over time, this can help prevent more serious issues like fuel line leaks, fuel pump failure, or even engine misfires caused by improper fuel-air ratios.

7. **Aftermarket Options for Cost Savings**

While OEM parts are reliable, aftermarket brands (e.g., Dorman, Gates, or ACDelco) offer comparable quality at lower prices. These alternatives often come with warranties and are backed by positive reviews for durability, making them a practical choice for budget-conscious buyers.

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### **Cons of Buying a Mazda B6CA-13-972 Evaporative Hose**

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

Purchasing from untrusted sellers (e.g., unverified online marketplaces or discount stores) may result in counterfeit or substandard parts. These hoses might fail prematurely, leading to repeated replacements and frustration. Always buy from reputable sources like Mazda dealerships, authorized distributors, or well-reviewed online retailers (e.g., RockAuto, Amazon, or local auto parts stores with return policies).

2. **Misdiagnosis of the Issue**

If the check engine light is triggered by a different underlying problem (e.g., a faulty canister purge valve, cracked fuel tank, or vacuum leak), replacing just the hose may not resolve the issue. A thorough diagnosis using an OBD-II scanner and visual inspection of the EVAP system is essential before purchasing the part. Skipping this step could lead to wasted money and repeated repairs.

3. **Environmental and Legal Considerations**

In some regions, tampering with the EVAP system (e.g., disconnecting or modifying it) can violate emissions regulations, leading to fines or failure to pass inspections. While replacing a faulty hose is a standard repair, intentionally bypassing the system is illegal. Always ensure repairs comply with local emissions laws.

4. **Limited Lifespan of Some Aftermarket Parts**

While many aftermarket hoses are durable, cheaper alternatives may degrade faster due to inferior materials or poor manufacturing. This could result in leaks or failures within a year, especially in vehicles exposed to extreme temperatures, road salt, or harsh driving conditions. Investing in a mid-to-high-end aftermarket brand or OEM part can mitigate this risk.

5. **Risk of Improper Installation**

If the hose is not installed correctly such as improperly securing clamps or misaligning fittings it can lead to leaks, vacuum loss, or even damage to the EVAP system. This requires careful attention during installation. Owners unfamiliar with automotive repairs may need to consult a mechanic or follow detailed installation guides to avoid mistakes.

6. **Age of the Vehicle May Affect Overall Reliability**

The Mazda B6CA engine (used in late 1990s models) is known for its robustness, but vehicles from this era may have other aging components (e.g., fuel injectors, sensors, or wiring) that could fail after the hose replacement. Addressing the hose issue may temporarily resolve EVAP-related symptoms, but a broader maintenance check is advisable.

7. **Limited Availability of OEM Parts**

OEM hoses may be harder to find or more expensive than aftermarket options, especially for older Mazda models. Dealerships often charge premium prices for genuine parts, which can be a drawback for buyers seeking cost-effective solutions.

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### **Conclusion**

The Mazda B6CA-13-972 evaporative hose is a straightforward and cost-effective repair for vehicles experiencing EVAP system issues. Its primary benefits lie in its compatibility, reliability (when sourced correctly), and ability to prevent emissions-related failures. The ease of installation and affordability make it an attractive option for both DIYers and those seeking professional repairs.

However, potential drawbacks include the risk of purchasing counterfeit parts, the need for proper diagnosis before replacement, and the possibility of other underlying issues not addressed by the hose alone. To maximize the repair s success, buyers should prioritize quality over price, ensure the part is compatible with their vehicle s specific needs, and verify that no other components are failing.

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### **Recommendation**

1. **Source the Part Carefully**: Purchase the hose from a reputable supplier, such as a Mazda dealership, an authorized auto parts distributor (e.g., RockAuto, Amazon, or local stores with return policies), or a trusted aftermarket brand like Dorman or Gates. Avoid unknown sellers to avoid counterfeit parts.

2. **Diagnose Thoroughly**: Before buying, use an OBD-II scanner to confirm the EVAP-related code (e.g., P0440) and visually inspect the hose, clamps, and related components (e.g., canister purge valve, fuel tank, and vacuum lines) for damage or leaks. Address any other issues identified during the inspection.

3. **Choose Quality Over Price**: While aftermarket hoses are often cheaper, opt for a mid-to-high-end brand if budget allows. This reduces the risk of premature failure. If unsure, an OEM part is the safest choice, though it may cost more.

4. **Follow Installation Guidelines**: Carefully follow the manufacturer s or vehicle s service manual instructions for installation. Ensure all clamps are securely tightened and fittings are properly aligned to prevent leaks.

5. **Consider Professional Help if Needed**: If the vehicle has other known issues or if the owner lacks mechanical experience, consulting a mechanic for installation or diagnosis can save time and avoid costly mistakes.

6. **Monitor Post-Repair Performance**: After replacement, monitor the vehicle for any lingering symptoms (e.g., check engine light, fuel efficiency changes, or unusual smells). If issues persist, revisit the diagnosis or consult a professional.

**Final Verdict**: The Mazda B6CA-13-972 evaporative hose is a practical and necessary repair for vehicles with EVAP system failures. With careful sourcing, proper diagnosis, and correct installation, it offers a reliable solution to emissions-related issues without significant long-term drawbacks. For most owners, the benefits outweigh the risks, making it a recommended repair when the need arises.

Details:

Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Electrical parts are not returnable.

part #: b6ca13972 price

  • $10.99

specifications emissyste:

  • for makes: Mazda
  • mpn: B6ca-13-972
  • part type: Hose
  • genuine oem: Yes
  • manufacturer warranty: 1 Year
  • universal fitment: Direct Replacement

general emissyste:

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

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  • sold: 0
  • started: February 23, 2026
  • quantity: 4
  • availability: In Stock
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for makes: mazda, part type: hose, genuine oem: yes, manufacturer warranty: 1 year, universal fitment: direct replacement,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 20329125617861741,
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