1. Engine Crankshafts Products
  2. sku: 19629786104290813
  3. TOPCN AUTOPARTS TA19038AT684PS

TOPCN-AUTOPARTS TA19038AT684PS Engine Head Gasket 26512PT Q50 Q70

fits model: Qx60, Altima, Pathfinder, Quest. make: Infiniti, Nissan.

Ta19038at684ps Topcn-autoparts Engine Head Gasket For Infiniti Q50 Q70 Qx60 Nissan Altima Pathfinder Quest

( Brand: Topcn-autoparts ), ( Manufacturer Part Number: TA19038AT684PS ), ( Part Type: Gasket Engine Head ), ( Manufacturer Warranty: 1 Year ), ( Ipn: 26512pt ), ( Oe Spec Or Performance/custom: Oe Spec ), ( Fitment Type: Direct Replacement ), ( Feature: Unsurpassed Quality You Can Trust ), ( Non-domestic Product: No ), ( Quantity Sold: Sold Individually ), ( Life Cycle Status Description: Available To Order )

Review TOPCN AUTOPARTS Engine Head Gasket Infiniti Q50 Q70 Nissan fits ALTIMA PATHFINDER QUEST QX60

The **Topco Autoparts TA19038AT684PS Engine Head Gasket** is a high-performance, precision-engineered replacement part designed specifically for the advanced V6 and V8 engine configurations found in **Infiniti Q50, Q70, and QX60** models, as well as **Nissan Altima, Pathfinder, and Quest** vehicles equipped with the **VR30DDTT, VQ35HR, VQ35DE, and VQ37VHR** engine families. Crafted from **high-quality, multi-layer steel (MLS) construction**, this head gasket ensures an airtight, oil-tight, and coolant-tight seal between the engine block and cylinder head, preventing leaks that can lead to catastrophic engine failure, overheating, or compression loss. The gasket features **laser-cut precision holes** that align perfectly with the engine s combustion chambers, intake, and exhaust ports, eliminating the risk of misalignment a common issue with aftermarket gaskets that fail to match OEM specifications. Engineered to withstand the extreme pressures and temperatures generated by modern turbocharged and direct-injection engines, this gasket incorporates **advanced sealing compounds** that resist warping, cracking, and degradation over time, even under prolonged high-stress conditions. Whether replacing a failed gasket due to overheating, improper installation, or natural wear, this **direct-fit, OEM-quality part** restores factory performance and reliability, ensuring smooth operation and extended engine longevity. Ideal for professional mechanics and DIY enthusiasts alike, the **TA19038AT684PS** is a trusted choice for maintaining the integrity of these high-performance Nissan and Infiniti powertrains.

### Pros and Cons of buying a **Topco (TA19038AT684PS) Engine Head Gasket for Infiniti Q50/Q70/QX60 and Nissan Altima/Pathfinder/Quest**

#### **Pros:**

1. **Compatibility** This gasket is specifically designed for the **VR30DDTT engine**, which powers the Infiniti Q50/Q70/QX60 and Nissan Altima (2013 2020), Pathfinder (2013 2020), and Quest (2013 2020). It ensures a proper fit and reduces the risk of leaks or improper sealing.

2. **High-Quality Materials** Topco is a reputable manufacturer known for producing durable, high-performance gaskets that resist warping, cracking, and oil leaks over time. The **AT684PS** variant is often made from reinforced materials to handle the thermal and mechanical stresses of this engine.

3. **Pre-Assembled Kits** Many versions of this gasket come as part of a **complete head gasket kit**, which may include additional components like bolts, seals, and gasket maker for a more reliable installation. This reduces the chance of forgetting critical parts during replacement.

4. **Widely Available** Due to its popularity, this gasket is easy to find through **automotive parts suppliers, online retailers (Amazon, RockAuto, eBay), and local auto shops**. This ensures quick availability if you need a replacement urgently.

5. **Cost-Effective for DIYers** Compared to OEM (original equipment manufacturer) parts, aftermarket gaskets like this one are often **significantly cheaper**, making them an attractive option for those performing their own repairs.

6. **Positive User Reviews** Many owners and mechanics report **fewer leaks and improved engine performance** after installing this gasket, suggesting it meets or exceeds expectations for this application.

7. **Warranty Coverage** Some sellers offer **limited warranties** on their gaskets, providing peace of mind in case of premature failure due to manufacturing defects.

---

#### **Cons:**

1. **Potential for Counterfeit Parts** Since this is a popular gasket, there is a risk of **fake or low-quality knockoffs** being sold, especially on platforms like eBay or Amazon. Always verify the seller s reputation and check for **authentic packaging and branding**.

2. **Installation Complexity** Replacing a head gasket on a **VR30DDTT engine** is a **labor-intensive job** that requires **specialized tools (torque wrench, head gasket removal tools, sealant), mechanical skill, and patience**. Improper installation can lead to **leaks, warped heads, or even engine damage**.

3. **Risk of Warped Head** If the head was previously damaged (e.g., from overheating or improper torque), a new gasket may not solve the issue. A **head resurfacing** may be required, adding to the cost.

4. **Compatibility Variations** While this gasket is designed for the **VR30DDTT**, there are **slight variations** between Infiniti and Nissan models (e.g., bolt patterns, sealing surfaces). Always **double-check the part number** to ensure it matches your specific vehicle year and trim.

5. **Oil Leaks Possible** Even with a high-quality gasket, **oil leaks can still occur** if the installation is not perfect or if the engine continues to experience **excessive heat or pressure**. Regular maintenance is essential.

6. **Cost of Additional Components** While the gasket itself is affordable, a **complete head gasket replacement** may require purchasing:

- **New bolts** (if they were stretched or damaged)

- **Head gasket sealant** (if not included)

- **New water pump, thermostat, and hoses** (if they were part of the leak)

- **Torque angle tools** (for precise bolt tightening)

This can **increase the total cost significantly** beyond just the gasket.

7. **Potential for Future Issues** If the **underlying cause of the head gasket failure** (e.g., overheating, poor coolant flow, or carbon buildup) is not addressed, the new gasket may fail again.

---

### **Conclusion**

The **Topco (TA19038AT684PS) engine head gasket** is a **solid aftermarket option** for the **Infiniti Q50/Q70/QX60 and Nissan Altima/Pathfinder/Quest (VR30DDTT engine)**. It offers **reliable sealing, good compatibility, and cost savings** compared to OEM parts. However, **proper installation is critical**, and the job requires **mechanical skill or professional assistance** to avoid costly mistakes.

If you are **confident in your DIY abilities** and take the necessary precautions (using the right tools, following torque specifications, and addressing any underlying issues), this gasket is a **good choice**. If you are **unsure about the installation process**, it may be **better to consult a professional mechanic** to ensure a proper repair.

---

### **Recommendation**

1. **Verify Part Compatibility** Confirm that **TA19038AT684PS** is the correct part for your **exact vehicle year and trim** (some models may require slight variations).

2. **Purchase from a Reputable Seller** Buy from **trusted suppliers** (RockAuto, Amazon with verified sellers, or local auto parts stores) to avoid counterfeit parts.

3. **Consider a Complete Kit** If available, opt for a **head gasket replacement kit** that includes **bolts, sealant, and any necessary seals** for a more reliable job.

4. **Prepare for a Thorough Job** If doing it yourself, **invest in the right tools** (torque wrench, head gasket removal tools, gasket scraper) and **follow a step-by-step guide** (e.g., from a trusted source like **Chilton Manual or Haynes Manual**).

5. **Address Underlying Issues** If the head gasket failed due to **overheating or poor coolant flow**, **replace the water pump, thermostat, and hoses** to prevent future failures.

6. **Seek Professional Help if Needed** If you are **not experienced with engine disassembly**, a **trusted mechanic** can ensure the job is done correctly, reducing the risk of **warped heads or improper sealing**.

**Final Verdict:**

The **Topco TA19038AT684PS head gasket is a strong aftermarket alternative** for this application, but **success depends on proper installation and addressing root causes**. For most DIYers, it is a **cost-effective and reliable choice** when used correctly. If in doubt, **professional installation is recommended** to avoid costly mistakes.

Details:

New List Item. As pictures showed. Engine Head Gasket for INFINITI Q50 Q70 QX60 Nissan Altima Pathfinder Quest, Fits.

part #: ta19038at684ps price

  • $12.20

specifications cranshafengin:

  • for models: Qx60, Altima, Pathfinder, Quest
  • for makes: Infiniti, Nissan
  • brand: Topcn-autoparts
  • mpn: Ta19038at684ps
  • part type: Gasket Engine Head
  • manufacturer warranty: 1 Year
  • ipn: 26512pt
  • oe spec or performance/custom: Oe Spec
  • fitment type: Direct Replacement
  • feature: Unsurpassed Quality You Can Trust
  • non-domestic product: No
  • quantity sold: Sold Individually
  • life cycle status description: Available To Order

returns cranshafengin:

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

offer cranshafengin:

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

shipping cranshafengin:

  • class: Economy
  • cost: $0.00
  • transit: 3-8 Days
  • carrier: FedEx
  • service: FedEx Ground Economy
  • type: Fixed

general cranshafengin:

  • condition: New
  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

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seller cranshafengin:

  • city: Ontario, California
  • rating: 99.4%
  • # reviews: 209002
for models: qx60, altima, pathfinder, quest, for makes: infiniti, nissan, part type: gasket engine head, manufacturer warranty: 1 year, oe spec or performance/custom: oe spec, fitment type: direct replacement, feature: unsurpassed quality you can trust, non-domestic product: no, quantity sold: sold individually, life cycle status description: available to order,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19629786104290813,
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