GATES 51899RZZB Fuel Tank Cap

( Brand: Gates ), ( Manufacturer Part Number: 51899RZZB ), ( Part Type: Fuel Tank Cap ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Oe Equivalent ), ( Important Note: Non-locking ), ( Years: 2005 2004 2003 2006 2007 2008 ), ( Application: Mazda 6 Fuel Tank Cap ), ( Cs-sku: 400 )

Review GATES Mazda Fuel Tank Cap fits 2003–2008

The **Gates 51899RZZB** is a precision-engineered, high-performance fuel tank cap designed specifically for Mazda vehicles manufactured between **2003 and 2008**, including models like the **Mazda3, Mazda6, Mazda Tribute, and Mazda RX-8**. Crafted with Gates signature reliability and durability, this fuel cap is built to meet or exceed OEM specifications, ensuring a secure, leak-proof seal while maintaining optimal fuel system performance. The cap features a **robust, corrosion-resistant metal housing** reinforced with high-quality rubber gaskets, preventing vapor leaks and maintaining proper fuel pressure within the tank. Its **threaded design** is engineered for a tight, vibration-resistant fit, reducing the risk of loosening over time an essential feature for vehicles subjected to rough road conditions or frequent stops. The cap also incorporates a **venting system** that regulates fuel vapor emissions, helping to comply with emissions regulations while protecting the fuel system from pressure buildup. Whether you're restoring a classic Mazda or upgrading an existing vehicle, the Gates 51899RZZB delivers a seamless, long-lasting solution that restores factory integrity and peace of mind. Built to last, this cap is a trusted choice for Mazda enthusiasts seeking both performance and reliability.

### **Pros and Cons of buying a Gates 51899RZZB Fuel Tank Cap for 2003 2008 Mazda Models**

1. **OEM Compatibility** The Gates 51899RZZB is designed as an original equipment (OEM) replacement part, meaning it fits directly without modifications. This ensures proper sealing, functionality, and compatibility with Mazda s fuel system for the specified model years (2003 2008).

2. **High-Quality Material** Gates is a well-known brand in automotive aftermarket parts, known for durable materials and reliable performance. The cap is likely made from sturdy plastic with a secure locking mechanism to prevent fuel evaporation and leaks.

3. **Prevents Fuel Evaporation** A properly sealed fuel tank cap reduces fuel vapor loss, which can improve fuel efficiency and reduce emissions. This is particularly useful in older vehicles where fuel system integrity may degrade over time.

4. **Easy Installation** The part is designed for straightforward replacement, requiring minimal tools. Most drivers or mechanics can install it without professional assistance.

5. **Cost-Effective Solution** Compared to full fuel tank replacements or extensive repairs, replacing just the cap is a low-cost fix for common issues like fuel odor, poor engine performance, or check engine lights related to evaporative emissions.

6. **Widely Available** As an aftermarket part, it is readily available through online retailers, auto parts stores, and Mazda dealerships, making it easy to source.

7. **Prevents Contamination** A damaged or missing cap can allow dirt, moisture, or debris to enter the fuel system, potentially clogging the fuel filter or injectors. This part helps maintain fuel purity.

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1. **Potential Counterfeit Risk** Purchasing from untrusted sellers (especially online marketplaces) may result in counterfeit or low-quality replicas. Always buy from reputable suppliers or dealerships to ensure authenticity.

2. **Mismatched Threads or Fit** While Gates parts are generally reliable, there is a slight risk of incorrect sizing or threading issues if the vehicle s fuel tank has been modified or if the original cap was damaged. Double-check compatibility before purchasing.

3. **Limited Longevity Compared to OEM** While Gates parts are high quality, they may not last as long as an original Mazda part if the vehicle is driven aggressively or exposed to extreme conditions (e.g., frequent short trips, extreme temperatures).

4. **Price Variability** Prices can fluctuate based on demand, seller markup, or shipping costs. Some buyers may find better deals on eBay or Amazon, while others may pay more at dealerships for "new OEM" labels.

5. **No Warranty on Some Retailers** If purchased from a third-party seller without a warranty, there is no recourse if the part fails prematurely. Reputable retailers often offer warranties or return policies.

6. **May Not Fix Underlying Issues** If the fuel tank itself is cracked, corroded, or damaged, replacing just the cap will not resolve the problem. A full fuel tank replacement may be necessary in such cases.

7. **Installation Challenges** In some vehicles, the fuel tank cap may be difficult to access due to tight spaces or obstructions (e.g., undercarriage components). This could require extra effort or tools to remove the old cap.

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The Gates 51899RZZB fuel tank cap is a **strong, cost-effective, and reliable aftermarket replacement** for 2003 2008 Mazda models, offering OEM-level compatibility and durability. It addresses common issues like fuel odor, check engine lights (related to evaporative emissions), and potential leaks without requiring major repairs. However, buyers should ensure they purchase from a trusted source to avoid counterfeit parts and verify fitment before installation.

For most drivers, this part is a **practical and worthwhile investment**, especially if the issue is isolated to the cap. If the vehicle exhibits additional symptoms (e.g., fuel leaks, poor engine performance), further diagnostics (such as inspecting the fuel tank for damage) may be necessary.

- **Buy from a reputable supplier** (e.g., RockAuto, Amazon, or a local Mazda parts dealer) to ensure authenticity.

- **Verify compatibility** with your specific model year and engine configuration before purchasing.

- **Inspect the fuel tank** for signs of corrosion or damage if the problem persists after replacement.

- **Follow installation instructions carefully** to avoid stripping threads or damaging the fuel system.

- **Consider a warranty** if available to protect against premature failure.

For most owners, the Gates 51899RZZB is a **safe and effective choice** for restoring proper fuel system function in their Mazda.

Details:

Regular Fuel Cap - designed to meet all requirements of your vehicles. 12 Month Warranty Fitment Notes: Vehicle: Engine: 2006 - 2007 Mazda 6Turbocharged, 63.0L V6, 62.3L 4 Cl Naturally Aspirated, 2003 - 2005, 2008 6. Parts Geek - For 2003 - 2008 Mazda 6 Fuel Tank Cap Gates 51899RZZB 2005 2004 2006 2007: Review Fitment Notes to Ensure Proper Fit condition: New Brand: Notes: OE Equivalent Product Remark: Non-Locking Features: Meets vehicle standards. OE quality seal ensures fuel tank emissions are maintained preventing check engine warnings.

Locking Fuel Caps - Same features as Regular Cap with the added benefit of a lock.

part #: 51899rzzb price

• $20.35

specifications fueltanksysteme:

• for makes: Mazda
• for years: 2003-2008
• brand: Gates
• mpn: 51899rzzb
• part type: Fuel Tank Cap
• manufacturer warranty: 12 Month Warranty
• notes: Oe Equivalent
• important note: Non-locking
• years: 2005 2004 2003 2006 2007 2008
• application: Mazda 6 Fuel Tank Cap
• cs-sku: 400

seller fueltanksysteme:

• rating: 98.8%
• city: Norcross, Georgia
• # reviews: 328402

general fueltanksysteme:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

shipping fueltanksysteme:

• cost: $0.00
• carrier: FedEx
• transit: 3-7 Days
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• type: Fixed

payments fueltanksysteme:

• wallet: Paypal
• credit card: Diners-club
• other

offer fueltanksysteme:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• started: April 15, 2026
• sold: 0

returns fueltanksysteme:

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

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