MAZDA KD53-42-110E Fuel Tank

( Manufacturer Part Number: KD53-42-110E ), ( Part Type: Fuel Tank ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review MAZDA Genuine Fuel Tank

The **Mazda KD53-42-110E Fuel Tank** is a high-performance, precision-engineered component designed exclusively for Mazda vehicles equipped with the KD engine family, including models like the Mazda3, Mazda6, and Mazda CX-5 from the late 2000s through the early 2020s. This fuel tank is crafted from durable, high-quality **low-density polyethylene (LDPE)**, a material chosen for its exceptional resistance to fuel degradation, corrosion, and environmental stressors, ensuring long-term reliability and structural integrity. The tank features a **smooth, seamless interior surface**, eliminating potential weak points where sediment or debris could accumulate, which helps maintain optimal fuel flow and prevents clogging in the fuel system. Its **reinforced outer shell** is designed to withstand the rigors of daily driving, including road vibrations, temperature fluctuations, and minor impacts, while the **integrated fuel level sender unit** provides accurate readings for the vehicle s fuel gauge, reducing the risk of inaccurate fuel measurements.

The KD53-42-110E tank is engineered with **precise dimensional tolerances** to ensure a perfect fit within the vehicle s fuel bay, minimizing gaps that could lead to fuel leaks or contamination. It incorporates a **robust fuel inlet and outlet system**, complete with secure O-rings and gaskets, which prevent fuel spillage and maintain a tight seal under pressure. The tank s **ventilation system** is optimized to regulate internal pressure, reducing the risk of vapor lock and ensuring smooth engine performance, particularly during acceleration or high-speed driving. Additionally, the tank is compatible with **E10 and higher ethanol blends**, making it suitable for modern fuel standards without compromising durability.

For enhanced safety and convenience, the KD53-42-110E fuel tank is often paired with **high-quality fuel lines, clamps, and mounting brackets** to ensure a complete and leak-proof installation. Whether replacing an original equipment (OEM) tank due to wear, damage, or upgrade purposes, this aftermarket component is built to meet or exceed factory specifications, offering drivers confidence in fuel efficiency, engine performance, and long-term reliability. Ideal for both professional mechanics and DIY enthusiasts, it represents a cost-effective solution for maintaining or upgrading Mazda vehicles with the KD engine platform.

**Pros and Cons of Buying a Mazda KD53-42-110E Fuel Tank**

The Mazda KD53-42-110E is a fuel tank commonly used in Mazda models, particularly those from the 1990s to early 2000s, such as the Mazda6, Proteg , and Millenia. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **Compatibility and Availability**

The KD53-42-110E is a widely used fuel tank, meaning it is relatively easy to find, especially in the aftermarket. Many online marketplaces, auto parts stores, and salvage yards carry this part, reducing the time and effort required for sourcing. Its widespread use also means that replacement procedures and installation guides are readily available.

2. **Durability and Material**

Mazda fuel tanks of this era were typically made from high-density polyethylene (HDPE), a sturdy plastic that resists corrosion and impacts better than older metal tanks. This material is less prone to rust and can last a long time if properly maintained. The tank s design is also generally robust, with reinforced areas to handle road vibrations and minor collisions.

3. **Cost-Effectiveness**

Compared to OEM (Original Equipment Manufacturer) parts, aftermarket versions of this fuel tank are often significantly cheaper. Prices can vary, but you can typically find a suitable replacement for a fraction of the cost of a new OEM tank. This makes it an attractive option for budget-conscious buyers, especially for older vehicles where replacement costs can be prohibitive.

4. **Ease of Installation**

The KD53-42-110E is designed to fit standard Mazda fuel systems, and its mounting points and connections are compatible with the vehicle s existing infrastructure. Many users report that installation is straightforward, especially if you have basic mechanical skills or access to a mechanic. The tank s design often aligns well with the vehicle s frame, reducing the need for extensive modifications.

5. **Fuel Efficiency and Performance**

Since this tank is designed for Mazda vehicles, it is optimized to work seamlessly with the car s fuel system, including the fuel pump, lines, and injectors. Using a compatible tank ensures that the vehicle s fuel delivery system operates efficiently, maintaining or even improving fuel economy and engine performance. A properly functioning fuel tank also prevents issues like fuel starvation or vapor lock, which can cause drivability problems.

6. **Long-Term Reliability**

Many Mazda models equipped with this tank have proven reliable over the years, with reports of tanks lasting well beyond 150,000 miles if they are not damaged or improperly maintained. The lack of metal means there is no risk of rust-related leaks, which is a common issue with older metal fuel tanks. This reliability can translate to fewer unexpected repairs and a more predictable maintenance schedule.

7. **Environmental Considerations**

HDPE tanks are generally more environmentally friendly than metal tanks because they do not corrode and do not require the same level of protective coatings. Additionally, they are often easier to recycle, though this depends on local recycling facilities. The lightweight nature of the tank also reduces fuel consumption during transportation and handling.

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### **Cons**

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

Due to the tank s popularity, the aftermarket is flooded with counterfeit or low-quality replicas. Some cheaper versions may have thin walls, poor welds, or substandard materials that can lead to leaks, cracks, or premature failure. It is crucial to purchase from reputable sellers who provide warranties or certifications to ensure you are getting a genuine or high-quality part. Always check reviews and verify the seller s reputation.

2. **Compatibility Issues with Modified Vehicles**

If your Mazda has undergone significant modifications such as a turbocharged engine, aftermarket fuel injection, or a larger fuel system the KD53-42-110E may not be sufficient. The tank s capacity (110 liters or approximately 29 gallons) is standard for naturally aspirated engines but may not accommodate the increased fuel demand of high-performance setups. In such cases, you may need a larger or reinforced tank, which could require additional modifications.

3. **Risk of Damage During Installation**

Fuel tanks are delicate components, especially when handling them for the first time. Improper installation can lead to damage, such as punctures, dents, or misaligned connections. This can result in fuel leaks, vapor leaks, or even fire hazards if not addressed promptly. It is advisable to follow installation guidelines carefully or seek professional help if you are unsure about the process.

4. **Age-Related Wear and Tear**

Even if the tank itself is in good condition, the surrounding components such as fuel lines, clamps, and the fuel pump may be aging. Over time, these parts can degrade, leading to leaks or failures. When replacing the tank, it is wise to inspect and replace any worn or damaged components in the fuel system to prevent future issues. This can add to the overall cost and time required for the replacement.

5. **Potential for Fuel Contamination**

If the tank has been sitting unused for an extended period or has been exposed to moisture, contaminants like rust, sediment, or water can accumulate inside. This can clog fuel filters, damage the fuel pump, or lead to engine performance issues. Before installing a used or refurbished tank, it is essential to clean it thoroughly or replace the fuel system entirely to avoid contamination.

6. **Limited Lifespan in Harsh Conditions**

While HDPE tanks are generally durable, extreme conditions such as prolonged exposure to UV light, extreme temperatures, or harsh chemicals can degrade the plastic over time. If your vehicle is frequently driven in harsh environments (e.g., off-roading, extreme climates, or areas with high salt content), the tank may wear out faster than expected. Regular inspections are recommended to catch any signs of degradation early.

7. **Resale Value Impact**

If you plan to sell your vehicle in the future, a fuel tank replacement especially if it was done with aftermarket parts may raise questions about the car s maintenance history. While this is not a dealbreaker for most buyers, it could potentially lower the resale value if the seller is not transparent about the replacement. Always document the replacement and provide receipts or service records to maintain the vehicle s credibility.

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### **Conclusion**

The Mazda KD53-42-110E fuel tank is a practical and widely available replacement part for many Mazda models, offering durability, cost-effectiveness, and compatibility with standard fuel systems. Its HDPE construction provides a significant advantage over older metal tanks, as it resists corrosion and is less prone to leaks. For most naturally aspirated Mazda vehicles, this tank is a reliable choice, especially when sourced from reputable sellers.

However, potential buyers should be cautious of counterfeit parts, compatibility issues with modified vehicles, and the risk of damage during installation. Additionally, aging components in the fuel system and environmental factors can affect the tank s longevity. To mitigate these risks, it is advisable to:

- Purchase from trusted suppliers with warranties.

- Inspect and replace related fuel system components during installation.

- Follow installation guidelines carefully or seek professional assistance.

- Monitor the tank s condition regularly, especially in harsh driving conditions.

For the average Mazda owner seeking a cost-effective and reliable fuel tank replacement, the KD53-42-110E is a strong recommendation. However, those with high-performance modifications or vehicles exposed to extreme conditions may need to consider alternative options or additional precautions.

If you are replacing a failing or damaged fuel tank in a standard Mazda model and prioritize cost, availability, and durability, the KD53-42-110E is an excellent choice. Ensure you buy from a reputable source, inspect the tank for damage before installation, and address any related fuel system issues simultaneously. For modified or high-mileage vehicles, weigh the pros and cons carefully and consider consulting a mechanic to determine if this tank is the best fit for your specific needs.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Genuine Mazda Parts. Electrical parts are not returnable. Parts must be resalable and in the original packaging.

part #: kd5342110e prices

• $239.03-$280.60

specifications fueltanksysteme:

• for makes: Mazda
• mpn: Kd53-42-110e
• part type: Fuel Tank
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 0 On The Diagram Is Included

shipping fueltanksysteme:

• transit: 6-12 Days
• cost: $97.50
• service: Standard
• type: Fixed
• class: Standard

general fueltanksysteme:

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

offer fueltanksysteme:

• started: April 12, 2026
• availability: In Stock
• sold: 0
• quantity: 3
• options: Ship-to-home

seller fueltanksysteme:

• city: Fairhaven, Massachusetts
• # reviews: 2582
• rating: 99.2%

returns fueltanksysteme:

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

payments fueltanksysteme:

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

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