SCITOO 16350 Rear Catalytic Converter Toyota Sienna 198519399965 3.3

( Brand: Scitoo ), ( Manufacturer Part Number: ADJUSTABLE ), ( Part Type: Converter ), ( UPC: 198519399965 )

Review SCITOO 1985 19399965 Rear Catalytic Converter Fit Toyota Sienna 3.3

The **Scitoo 198519399965 16350 Rear Catalytic Converter** is a high-performance, direct-fit replacement designed specifically for Toyota Sienna models produced between **2004 and 2010**, equipped with the **3.3L V6 engine**. This premium aftermarket component is engineered to meet or exceed OEM standards, ensuring optimal emissions control while maintaining peak engine efficiency. Crafted from high-grade stainless steel and advanced catalytic materials, this converter is built to withstand the rigorous demands of daily driving, providing long-lasting durability and resistance to corrosion, even in harsh environmental conditions. The design incorporates a **precision-welded substrate** and a **robust exhaust housing**, which not only enhances structural integrity but also minimizes the risk of leaks or premature failure. Ideal for both performance enthusiasts and fleet operators, this catalytic converter is a seamless drop-in solution that restores factory emissions compliance without compromising power output. Whether replacing a worn-out OEM unit or upgrading for improved efficiency, the Scitoo 16350 is a reliable choice that combines quality craftsmanship with performance-driven engineering.

**Pros and Cons of buying a Scitoo Catalytic Converter (Part Number: 198519399965, Fits Toyota Sienna 2004 2010 3.3L)**

1. **OEM Compatibility** The part is designed to match the original equipment manufacturer (OEM) specifications for your Toyota Sienna, ensuring proper fitment and functionality. This reduces the risk of installation issues or performance problems.

2. **Quality Materials** Scitoo is a reputable brand that typically uses high-quality materials in its catalytic converters. A well-built converter can improve emissions compliance and engine efficiency, especially if the original was failing or damaged.

3. **Warranty Coverage** Many aftermarket parts, including Scitoo s, come with warranties (often 1 2 years). This provides some protection against manufacturing defects or premature failure, which can be reassuring for a critical component like a catalytic converter.

4. **Cost-Effective Alternative to OEM** While not an OEM part, Scitoo converters are often priced lower than genuine Toyota replacements. This makes them a practical choice for budget-conscious buyers who still want reliable performance.

5. **Ease of Installation** Since it s a direct-fit part, installation should be straightforward for those with basic mechanical skills or when done by a professional. No modifications to the exhaust system are typically required.

6. **Emissions Compliance** A properly functioning catalytic converter is essential for passing emissions tests. If your Sienna s original converter was clogged or leaking, replacing it with this part can restore compliance and avoid potential fines or failed inspections.

7. **Durability** Catalytic converters are built to last the lifetime of the vehicle under normal conditions. A quality part like this one can reduce the likelihood of early failure, which is common with cheap or counterfeit converters.

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1. **Potential for Counterfeit or Low-Quality Parts** While Scitoo is a legitimate brand, there is a risk of receiving a counterfeit or substandard part, especially if purchased from untrusted sellers (e.g., third-party marketplaces without verification). Always buy from authorized dealers or reputable online retailers to mitigate this risk.

2. **Mismatched Performance** Some aftermarket converters, even from reputable brands, may not match the exact performance characteristics of the OEM part. While this Scitoo converter is designed for compatibility, there s a slight possibility of minor differences in backpressure or efficiency, though this is unlikely with a well-made part.

3. **Limited Customization** If you re looking for a high-flow or performance-oriented catalytic converter (e.g., for tuning or improved exhaust flow), this part is not designed for that purpose. It s a direct replacement, not an upgrade.

4. **Installation Challenges** While direct-fit parts are usually easy to install, rusted bolts, damaged flanges, or other exhaust system issues could complicate the process. If the surrounding components are degraded, additional repairs may be needed.

5. **Price Variability** Prices for aftermarket catalytic converters can fluctuate based on demand, availability, and seller markup. Ensure you re getting a fair price by comparing options from multiple sources.

6. **Warranty Limitations** Some warranties on aftermarket parts may exclude labor or have strict conditions (e.g., installation by a certified professional). Always review the warranty terms before purchasing.

7. **Environmental and Legal Considerations** Using a non-OEM part shouldn t affect emissions compliance if the converter meets regulatory standards. However, in rare cases, some states or regions have stricter requirements for aftermarket parts. Verify local regulations to avoid issues.

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The **Scitoo catalytic converter (198519399965) for the 2004 2010 Toyota Sienna 3.3L** is a solid choice for most buyers. It offers OEM-level compatibility, quality construction, and cost savings compared to genuine Toyota parts. The risks are minimal if you purchase from a trusted source and ensure the part is genuine. However, if you re concerned about counterfeit products, it s wise to verify the seller s reputation or buy directly from Scitoo s official channels.

For most drivers, the pros outweigh the cons, making this a reliable and practical replacement. If your Sienna is experiencing check engine lights due to a failing catalytic converter, this part is a practical solution to restore functionality and emissions compliance.

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- **Buy from an authorized dealer or a reputable online retailer** (e.g., Amazon, RockAuto, or Scitoo s official website) to avoid counterfeit parts.

- **Check for a warranty** and ensure it covers both the part and labor if needed.

- **Inspect the part upon arrival** for signs of damage or poor quality (e.g., rust, cracks, or mismatched threads).

- **Consider professional installation** if you re unsure about handling the exhaust system, especially if bolts or flanges are corroded.

- **Monitor performance post-installation** to confirm the converter is functioning correctly and the check engine light (if present) has cleared.

If your budget allows, a genuine Toyota part may offer slightly more peace of mind, but the Scitoo converter is a well-regarded alternative for most users.

Details:

SCITOO 16350 Rear Catalytic Converter Fit For Toyota Sienna 2004 -2010,3.3L,3.5L,FWD,EPA Compliant: Manufacturer. Exterior: Machined. Brand: SCITOO. Made of high premium stainless steel, sturdy, durable.

Item model number: Adjustable. OEM Part Number: 16350, 18282, 174200A251, 174200A252, 174200P080. Direct-Fit Design: Our catalytic Converters are design-validated for assured fit. Position: Rear.

Product Dimensions: 19.49 x 6.69 5.91 inches. Model: catalytic converters. Manufacturer Part Number: 178665-511.

part #: 198519399965 prices

• $78.57-$87.12

specifications golspogoo:

• brand: Scitoo
• mpn: Adjustable
• part type: Converter
• upc: 198519399965

offer golspogoo:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: April 20, 2026

general golspogoo:

• condition: New
• Sporting Goods > Golf > Other Golf

shipping golspogoo:

• class: Standard
• service: Standard
• type: Fixed
• cost: $0.00
• transit: 4-10 Days

payments golspogoo:

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

seller golspogoo:

• # reviews: 688
• city: US
• rating: 100.0%

returns golspogoo:

• policy: No Returns

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