1. Exhaust & Emission Parts To Buy
  2. sku: 20548141638293752
  3. NISSAN 11835-4S110

NISSAN 11835-4S110 Crankcase Vent Tube Pcv Crossover 3.3L

fits model: Xterra, Frontier. make: Nissan. year: 1998–2004.

11835-4s110 Nissan 1998-2004 Xterra Crankcase Vent Tube Frontier 3.3l Pcv Crossover

( Manufacturer Part Number: 11835-4S110 ), ( Part Type: Vent Tube ), ( Country Of Origin: Japan )

Review NISSAN Crankcase Vent Tube 3.3l Pcv Crossover fits XTERRA FRONTIER 1998–2004

The **Nissan 11835-4S110 Crankcase Ventilation (PCV) Tube** is a critical yet often overlooked component designed specifically for the **1998 2004 Nissan Xterra and Frontier** models equipped with the **3.3L V6 engine**. This high-quality aftermarket replacement tube ensures proper crankcase ventilation by directing harmful blow-by gases from the engine s combustion chamber back into the intake manifold, where they are safely burned during the next cycle. Crafted from durable **heat-resistant rubber and reinforced nylon**, this PCV tube is engineered to withstand the harsh conditions of underhood operation, including exposure to engine heat, oil residue, and vibration, which can degrade standard OEM parts over time. Unlike generic or low-quality aftermarket alternatives, this tube features a **precise fit** with the engine s PCV system, including the **breather housing and intake manifold connections**, minimizing leaks and maintaining optimal engine performance. The design also incorporates a **smooth internal passage** to reduce airflow restriction, helping to prevent engine oil dilution and carbon buildup in the intake system. Whether replacing a worn-out OEM part or upgrading for improved reliability, this **direct-fit replacement** is an essential component for maintaining proper engine breathing, reducing emissions, and extending the lifespan of your Nissan s 3.3L V6 powerplant. Ideal for DIY enthusiasts and professional mechanics alike, it installs quickly with basic tools and helps keep your Xterra or Frontier running smoothly for years to come.

Buying the **Nissan 11835-4S110 crankcase vent tube (PCV crossover) for a 1998 2004 3.3L Xterra/Frontier** can be a practical solution for certain issues, but it comes with trade-offs. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

---

### **Pros of buying a Part**

1. **Direct Fit and Compatibility**

The 11835-4S110 is a genuine or high-quality aftermarket replacement designed specifically for the 3.3L V6 engines in the 1998 2004 Xterra and Frontier. It eliminates the need for modifications or adapters, ensuring a proper fit.

2. **Prevents Engine Oil Leaks and Contamination**

The crankcase vent tube (PCV crossover) helps regulate pressure in the engine bay by venting blow-by gases. A failing or missing tube can cause oil leaks from gaskets, seals, or the PCV valve itself. Replacing it restores proper ventilation, reducing the risk of oil leaks and internal contamination.

3. **Improves Engine Performance and Longevity**

A clogged or damaged vent tube can lead to excessive pressure buildup, straining the engine s seals and potentially causing long-term damage. Replacing it ensures optimal airflow, reducing carbon buildup on valves and pistons, which can improve engine efficiency and lifespan.

4. **Cost-Effective Compared to Engine Overhaul**

Replacing a single vent tube is far cheaper than dealing with severe engine issues (e.g., blown head gaskets, valve train damage) caused by prolonged neglect of the PCV system. It s a preventive measure that can save hundreds or thousands in repairs later.

5. **Easy Installation**

The part is relatively straightforward to install, requiring minimal tools and time. Most DIYers can complete the job in under an hour, especially if they have access to a repair manual or video guide.

6. **Availability and Reliability**

As a common Nissan part, it is widely available from online retailers, auto parts stores, and salvage yards. Reputable sellers (e.g., RockAuto, Amazon, or local Nissan specialists) offer warranties or return policies, ensuring you get a functional part.

7. **Compatibility with Aftermarket PCV Systems**

If you re upgrading to an aftermarket PCV valve or filter, this vent tube is often required for proper integration. It ensures the new system works as intended without leaks or pressure issues.

---

### **Cons of buying a Part**

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

Some online sellers may offer knockoff or reused parts that fail prematurely. While genuine Nissan parts or reputable aftermarket brands (e.g., ACDelco, Dorman) are reliable, cheaper alternatives might not last. Always verify the seller s reputation and part authenticity.

2. **Underlying Issues May Persist**

If the problem stems from a failing PCV valve, clogged oil filter housing, or damaged seals (e.g., valve cover gasket), replacing just the vent tube may not fully resolve the issue. A thorough inspection of the entire PCV system is recommended.

3. **Mild Oil Leaks May Recur**

If the oil leak is due to a failing valve cover gasket or oil filter housing gasket, replacing the vent tube alone won t fix it. You may need to address these components separately, adding to the cost.

4. **Installation Challenges**

While the part is easy to install, locating it can be tricky in tight engine bays. Some owners report difficulty accessing the tube due to its position near the valve cover or intake manifold. Clearance issues may require careful maneuvering or removal of nearby components.

5. **Environmental and Health Concerns**

The crankcase vent tube vents blow-by gases, which contain unburned hydrocarbons and other pollutants. While modern systems are designed to minimize emissions, handling or replacing the part may expose you to fumes. Work in a well-ventilated area and avoid inhaling exhaust or oil vapors.

6. **Limited Longevity in Harsh Conditions**

If the vehicle is driven in extreme temperatures, off-road conditions, or with frequent oil changes (leading to dry starts), the vent tube may wear out faster. Regular maintenance (e.g., oil changes, PCV valve checks) can extend its lifespan.

7. **Misdiagnosis Risk**

If the symptoms (e.g., oil leaks, rough idle, or check engine light) are actually caused by a different issue (e.g., a cracked intake manifold, failing oil pump, or vacuum leaks), replacing the vent tube won t help. Always confirm the diagnosis before purchasing.

---

### **Conclusion**

The **Nissan 11835-4S110 crankcase vent tube (PCV crossover)** is a worthwhile investment for owners of the 1998 2004 3.3L Xterra/Frontier experiencing oil leaks, pressure-related issues, or PCV system failures. It is a cost-effective, easy-to-install solution that prevents further engine damage and improves reliability. However, it is not a universal fix underlying issues like failing gaskets or a clogged PCV valve must also be addressed for complete resolution.

The part s pros outweigh the cons for most DIYers or those with basic mechanical skills, provided they source it from a trusted seller and verify the root cause of their symptoms. For those uncomfortable with engine work, a professional mechanic can install it quickly and ensure no other issues are overlooked.

---

### **Recommendation**

1. **Verify the Problem**

Before purchasing, confirm that the issue is indeed related to the crankcase vent tube. Check for:

- Oil leaks near the valve cover or oil filter housing.

- A clogged or failing PCV valve (test by removing it if it s gummed up or doesn t rattle, it needs replacement).

- Excessive engine pressure (listen for hissing or check for oil leaks under the valve cover).

2. **Source the Part from a Reputable Seller**

Buy from authorized Nissan dealers, trusted online retailers (e.g., RockAuto, Amazon, or eBay with positive feedback), or salvage yards with return policies. Avoid suspiciously cheap parts, as they may be counterfeit or reused.

3. **Consider a Complete PCV System Upgrade**

If the vent tube is failing, it s a good opportunity to replace the **PCV valve** (part number **11835-4S110** or a high-flow aftermarket valve) and check the **oil filter housing gasket** and **valve cover gasket** for leaks. A fresh oil filter and gaskets can prevent future issues.

4. **Install Properly and Test**

Follow the installation instructions carefully, ensuring the tube is securely connected to the valve cover and PCV valve. After installation, start the engine and check for leaks or unusual noises. Monitor for improved performance (e.g., no more oil leaks, stable idle).

5. **Maintain the System**

Replace the PCV valve every **30,000 50,000 miles** or if it becomes clogged. Use high-quality oil and follow the manufacturer s maintenance schedule to keep the engine bay clean and pressure-regulated.

**Final Verdict:** **Buy the part if you ve confirmed the issue is related to the crankcase vent tube.** It s a simple, affordable fix that can extend your engine s life and prevent costly repairs. Pair it with a PCV valve replacement and gasket checks for long-term reliability. If unsure about the diagnosis, consult a mechanic before purchasing.

Details:

OEM part numbers. Great condition shown in the photos. PCV crossover tube breather assembly pulled from a well maintained 2002 Nissan Xterra SE v6 3.3L Automatic with 205k miles.

part #: 118354s110 price

  • $34.00

specifications emissyste:

  • for models: Xterra, Frontier
  • for makes: Nissan
  • for years: 1998-2004
  • mpn: 11835-4s110
  • part type: Vent Tube
  • country of origin: Japan

general emissyste:

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

offer emissyste:

  • quantity: 3
  • started: March 5, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

payments emissyste:

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

seller emissyste:

  • # reviews: 881
  • rating: 99.2%
  • city: Midlothian, Texas

returns emissyste:

  • policy: No Returns

shipping emissyste:

  • cost: $0.00
  • service: USPS Ground Advantage
  • carrier: USPS
  • class: Standard
  • transit: 5-11 Days
  • type: Calculated
for models: xterra, frontier, for makes: nissan, for years: 1998-2004, part type: vent tube, country of origin: japan,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 20548141638293752,
Nissan 11835-4S110 Is Similar To:
emissyste logo
1 offer $34.00 USD
  • Used. Offer #1 priced at $34.00 + $0.00 shipping estimate = $34.00* total. Great condition shown in the photos. PCV crossover tube breather assembly pulled from a well maintained 2002 Nissan Xterra SE v6 3.3L Automatic with 205k miles.FREE SHIPPING

Copyright © emissyste.com