NISSAN 11823-5RB0A Hose Blowby Gas

( Manufacturer Part Number: 11823-5RB0A ), ( Part Type: Hose ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review NISSAN Genuine Hose blowby Gas

The **Nissan 11823-5RB0A Blowby Gas Hose** is a precision-engineered component designed specifically for Nissan vehicles equipped with the RB-series engines, including models like the 350Z, 370Z, GT-R, and certain iterations of the GT-R Nismo. This high-performance hose plays a critical role in the engine s exhaust system by channeling blowby gases mixtures of unburned fuel, oil vapors, and combustion byproducts that escape past the piston rings from the crankcase to the intake manifold or turbocharger housing, where they are safely recirculated or expelled. Crafted from durable, heat-resistant synthetic rubber with reinforced fiber braiding, this hose is engineered to withstand the extreme temperatures, pressure fluctuations, and chemical exposure inherent to high-performance driving, ensuring long-term reliability and leak-free operation. Its robust construction minimizes the risk of kinking, cracking, or premature degradation, even under aggressive driving conditions or prolonged exposure to the underhood environment. The 11823-5RB0A hose features a snug-fitting design with secure clamp points, allowing for easy installation while maintaining a tight seal to prevent gas leaks that could compromise engine efficiency or introduce harmful emissions. Whether used in stock applications or as part of a performance upgrade, this hose is a vital yet often overlooked part that contributes to the smooth operation and longevity of the RB-series engine, making it an essential replacement for vehicles experiencing blowby issues, exhaust backpressure, or signs of hose wear.

### Pros and Cons of buying a Nissan 11823-5RB0A Hose (Blowby Gas Hose)

The **Nissan 11823-5RB0A** is a replacement hose used for blowby gas, which helps manage exhaust gases that escape past the piston rings in an engine. Below is a detailed analysis of its advantages and disadvantages.

---

### **Pros**

1. **OEM Quality and Fit**

The 11823-5RB0A is a genuine Nissan part, meaning it is designed to match the exact specifications of the original equipment manufacturer (OEM). This ensures a precise fit, reducing the risk of leaks or improper installation. Genuine parts are also built to withstand the same conditions as the original, offering reliable performance.

2. **Reliability and Durability**

Nissan s aftermarket and OEM parts are generally well-engineered to last the lifespan of the vehicle, provided they are installed correctly and maintained properly. The hose is made from materials that can withstand engine heat and pressure, reducing the likelihood of premature failure.

3. **Compatibility with Nissan Vehicles**

This part is specifically designed for certain Nissan models, particularly those with the RB engine series (e.g., 300ZX, 350Z, GT-R). Using an OEM part minimizes the risk of compatibility issues that can arise with aftermarket alternatives that may not fit perfectly or function as intended.

4. **Warranty Coverage**

Purchasing from an authorized Nissan dealer or a reputable online retailer often comes with a warranty, typically covering defects in materials or workmanship. This provides peace of mind in case the hose fails prematurely due to a manufacturing issue.

5. **Ease of Installation**

Since it is an OEM part, the installation process is straightforward for those with basic mechanical knowledge. The hose is designed to fit seamlessly into the existing system, reducing the need for modifications or additional tools.

6. **Prevents Engine Contamination**

The blowby gas hose directs gases away from critical engine components, such as the valve cover and PCV (Positive Crankcase Ventilation) system. A properly functioning hose helps prevent oil sludge buildup and contamination, which can lead to long-term engine damage if left unchecked.

7. **Supports Vehicle Resale Value**

Using OEM parts during maintenance or repairs can help preserve the vehicle s resale value, especially for enthusiasts or buyers who prioritize original equipment. It signals that the car has been well-maintained with authentic components.

---

### **Cons**

1. **Higher Cost**

OEM parts are typically more expensive than aftermarket alternatives. The 11823-5RB0A may cost significantly more than a generic or third-party blowby gas hose. For budget-conscious buyers, this can be a major drawback, especially if the part is not critical to immediate vehicle operation.

2. **Limited Availability**

Depending on the region or retailer, genuine Nissan parts may not always be in stock. This can lead to delays in purchasing or the need to order from specialized suppliers, which may incur additional shipping costs or wait times.

3. **Potential for Overpricing**

Some authorized dealers or online marketplaces may mark up the price of OEM parts beyond the manufacturer s suggested retail price (MSRP). Buyers should compare prices across multiple sources to ensure they are getting a fair deal.

4. **Aftermarket Alternatives May Suffice**

For many drivers, aftermarket blowby gas hoses from reputable brands (e.g., Gates, Bosch, or ACDelco) offer comparable performance at a fraction of the cost. These alternatives are often backed by warranties and may not compromise on quality or fit. If the vehicle is not a high-value classic or a performance-oriented model, aftermarket parts can be a practical choice.

5. **Environmental and Ethical Considerations**

Some consumers prefer to avoid OEM parts due to environmental concerns related to manufacturing or disposal. While this is less of an issue with a single hose, it may be a consideration for those who prioritize sustainability in their purchasing decisions.

6. **Risk of Counterfeit Parts**

When purchasing from non-authorized sources (e.g., eBay, Craigslist, or untrusted online retailers), there is a risk of receiving counterfeit or substandard parts. These may fail quickly or not fit properly, leading to additional costs and frustration. Always buy from reputable dealers or Nissan-approved suppliers to mitigate this risk.

7. **Overkill for Minor Repairs**

If the blowby gas hose is only slightly damaged or worn, some drivers may opt for a cheaper aftermarket replacement or even a DIY fix (e.g., sealing with silicone). In such cases, purchasing an OEM part may be unnecessary and cost-ineffective.

---

### **Conclusion**

The **Nissan 11823-5RB0A blowby gas hose** is an excellent choice for drivers who prioritize reliability, longevity, and exact fitment in their vehicle. Its OEM status ensures compatibility, durability, and peace of mind, particularly for high-mileage or performance-oriented Nissan models. The part is ideal for those who want to maintain their vehicle s integrity and avoid potential issues related to aftermarket alternatives.

However, the higher cost and potential for overpricing may not justify the purchase for every driver. If the vehicle is not a high-value or performance model, an aftermarket hose from a trusted brand could offer similar benefits at a lower price. Additionally, buyers should always verify the authenticity of the part and compare prices to ensure they are making a cost-effective decision.

For most Nissan owners who value authenticity and long-term reliability, the **11823-5RB0A is a strong recommendation**. For others, weighing the cost against the benefits of aftermarket options may lead to a different conclusion.

---

### **Final Recommendation**

- You own a high-value or performance Nissan model (e.g., RB-series engines).

- You prioritize OEM quality, warranty coverage, and exact fitment.

- You are comfortable paying a premium for reliability and long-term peace of mind.

- You are replacing the hose as part of a full maintenance or restoration project.

- You are on a tight budget and the hose is not critical to immediate vehicle operation.

- The vehicle is not a high-value classic or performance model.

- You can find a reputable aftermarket hose (e.g., Gates, Bosch) with a good warranty.

- You are confident in your ability to verify the quality and authenticity of the part.

Always purchase from authorized dealers or trusted online retailers to avoid counterfeit or low-quality parts. If possible, consult with a Nissan technician or mechanic to confirm whether the OEM part is necessary for your specific situation.

Details:

Whether you re restoring a classic, upgrading performance, or maintaining your daily driver, our team is here to help. 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. Electrical parts are not returnable.

part #: 118235rb0a price

• $43.18

specifications emissyste:

• for makes: Nissan
• mpn: 11823-5rb0a
• part type: Hose
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• parts included: Only Part Reference 0 On The Diagram Is Included

returns emissyste:

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

shipping emissyste:

• cost: $7.99
• service: Standard
• class: Standard
• type: Fixed
• transit: 3-8 Days

payments emissyste:

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

offer emissyste:

• availability: In Stock
• quantity: 4
• sold: 0
• options: Ship-to-home
• started: March 17, 2026

general emissyste:

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

seller emissyste:

• rating: 99.7%
• # reviews: 4098
• city: Dallas, Texas

Nissan 11823-5RB0A Is Similar To:

• 11810-31u00 Nissan Infiniti Genuine Oem Pcv Valve (41.8% similar) Image not available for this item...(April 3rd, 2018)
• 11810-40p00 Nissan Infiniti Genuine Oem Pcv Valve (41.8% similar) Please review the attached pictures of listed items carefully. Please, feel free to for any questions. For sale: nissan Infiniti 1181040P00 genuine oem PVC valve-new part, original packaging...(January 2nd, 2019)
• 11810-5h71a Nissan Genuine Oem Pcv Valve (43.9% similar) Image not available for this item...(July 31st, 2018)
• 11826-84a10 1182684a10 Oem Nissan Factory Genuine Pulsar Sentra Blowby Gas Hose Day (44.8% similar) Please match part for compatibility if available not, examine the pictures very closely and carefully before purchasing. In case of damage please save all boxes and packaging item. In most cases they're exact and some instances estimated. Due to varying production dates, the years in offer title or ...(November 4th, 2018)
• 14064-jd00a Nissan Genuine Oem Exhaust Manifold Stud (40.4% similar) ...(June 21st, 2018)
• 14069-7j50a Nissan Genuine Oem Shield Bolt (40.5% similar) ...(September 1st, 2018)
• 14713-40u01 Nissan Genuine Oem Spacer Tube (42.9% similar) ...(May 9th, 2018)
• 14719-0b000 Nissan Genuine Oem Valve Gasket (49.4% similar) ...(May 9th, 2018)
• 14730-19p00 Nissan Genuine Oem Temp Sensor (42.9% similar) ...(July 26th, 2018)
• 14730-4s100 Nissan Genuine Oem Temp Sensor (42.9% similar) ...(August 3rd, 2018)
• 14741-3s500 Nissan Genuine Oem Control Valve (41.9% similar) ...(October 1st, 2018)