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  3. TRQ 16551ZHZB

TRQ 16551ZHZB Injection High Pressure Fuel Pump

fits make: Mazda. year: 2007–2013.

16551zhzb Trq For 2007-2013 Mazda 3 Direct Injection High Pressure Fuel Pump 2008

( Brand: Trq ), ( Manufacturer Part Number: 16551ZHZB ), ( Part Type: Pressure Fuel Pump ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: High Pressure Fuel Pump ), ( Years: 2007 2008 2009 2010 2011 2012 2013 ), ( Application: Mazda 3 Direct Injection High Pressure Fuel Pump ), ( Product Name 2: Fuel Pump ), ( Cs-sku: 400 )

Review TRQ Mazda Direct Injection High Pressure Fuel Pump fits 2007–2013

The **16551ZHZB high-pressure fuel pump** is a precision-engineered component designed exclusively for Mazda vehicles manufactured between **2007 and 2013**, specifically tailored to models equipped with direct-injection fuel systems. This critical part serves as the heart of the engine s fuel delivery mechanism, responsible for generating the high-pressure fuel necessary to efficiently inject fuel directly into the combustion chamber. Crafted with meticulous attention to detail, this pump integrates advanced internal components, including a robust **piezoelectric actuator**, which ensures precise fuel metering and optimal combustion performance. Built to Mazda s exacting standards, the **16551ZHZB** is engineered to withstand the demanding conditions of modern high-performance engines, delivering consistent and reliable operation even under heavy loads or high-speed driving conditions.

The fuel pump features a **durable, corrosion-resistant housing** designed to protect internal components from contaminants and thermal stress, extending its operational lifespan while maintaining peak efficiency. Its **sealed construction** minimizes the risk of fuel leaks, ensuring a clean and leak-free operation that aligns with Mazda s emphasis on both performance and environmental responsibility. Compatible with the **SKYACTIV-G** and other advanced engine architectures found in these model years, this pump is engineered to work seamlessly with Mazda s fuel injection systems, providing the precise fuel pressure required for optimal engine response, fuel economy, and emissions compliance. Whether installed in a **Mazda3, Mazda6, Mazda CX-7, or Mazda Tribute**, this high-pressure fuel pump guarantees smooth operation, reduced engine wear, and enhanced overall drivability.

For technicians and enthusiasts seeking a **direct replacement** that matches or exceeds OEM specifications, the **16551ZHZB** is an ideal choice. Its **universal compatibility** with the specified model range ensures a straightforward installation process, minimizing downtime and labor costs. Built to endure the rigors of daily driving, this fuel pump is a testament to Mazda s commitment to engineering excellence, offering a balance of durability, efficiency, and performance that drivers can rely on for years to come. Whether replacing a worn-out original component or upgrading an existing system, this high-pressure fuel pump delivers the reliability and precision needed to keep Mazda s direct-injection engines running at their best.

### **Pros and Cons of buying a 16551ZHZB High-Pressure Fuel Pump for 2007 2013 Mazda Engines (2008 Model Year)**

#### **Pros:**

1. **Direct Compatibility** The **16551ZHZB** is a genuine or high-quality aftermarket replacement designed specifically for **2007 2013 Mazda engines** (including the **SKYACTIV-G, MZR-LP, and MZR-TL** variants). It ensures proper fitment without modification, reducing the risk of installation issues.

2. **Reliability** High-pressure fuel pumps from reputable brands (such as **Bosch, Delphi, or Denso**) are engineered to meet or exceed OEM standards. A quality pump minimizes the risk of fuel starvation, misfires, or engine stalling common failures in older Mazdas with worn pumps.

3. **Improved Fuel Efficiency & Performance** A properly functioning high-pressure fuel pump ensures consistent fuel delivery to the injectors, which can enhance throttle response, reduce fuel waste, and prevent partial fueling (a symptom of a failing pump).

4. **Prevents Costly Engine Damage** A failing high-pressure pump can lead to **carbon buildup, injector clogging, or even engine misfires**, which may require **injector cleaning, fuel system flushes, or even injector replacement**. Replacing the pump early avoids these secondary issues.

5. **Easier Installation** Unlike some OEM pumps, aftermarket options like the **16551ZHZB** often come with **pre-installed gaskets, mounting hardware, and wiring connectors**, simplifying the replacement process for DIYers.

6. **Warranty Coverage** Many aftermarket pumps (especially from brands like **Bosch, Delphi, or Denso**) come with **1-year warranties**, providing peace of mind against early failure.

7. **Cost-Effective Alternative to OEM** While not always cheaper, aftermarket pumps often match OEM quality at a lower price, making them a practical choice for budget-conscious buyers.

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#### **Cons:**

1. **Mixed Quality Among Brands** Not all aftermarket pumps are equal. **Cheap knockoffs** (especially from unknown sellers) may fail prematurely, leading to repeat replacements. Always verify the brand s reputation before purchasing.

2. **Potential Compatibility Issues** While the **16551ZHZB** is designed for **2007 2013 Mazdas**, some **SKYACTIV-G (2012 ) engines** may require a slightly different pump variant. Double-check the **engine code (e.g., MZR-LP vs. MZR-TL)** to ensure full compatibility.

3. **Installation Complexity** Replacing a high-pressure fuel pump requires **disconnecting fuel lines under pressure**, which can be messy. If not done carefully, **fuel spills or improper sealing** can lead to leaks or system contamination.

4. **Risk of Counterfeit Parts** Purchasing from **unverified sellers** (e.g., eBay, Amazon, or unknown online marketplaces) increases the chance of receiving a **fake or low-quality pump**. Always buy from **authorized dealers or trusted auto parts stores**.

5. **Additional Costs** Beyond the pump itself, you may need to budget for:

- **Fuel system cleaning** (if the old pump caused injector fouling).

- **New fuel lines or connectors** (if damaged during removal).

- **Diagnostic tools** (to confirm the pump is the root cause of symptoms).

6. **Limited Lifespan Compared to OEM** While high-quality aftermarket pumps last **50,000 100,000 miles**, some may degrade faster than OEM units, especially in **high-mileage or severe driving conditions**.

7. **Potential for Overpaying** Some sellers mark up aftermarket pumps significantly. **Comparing prices** across brands (Bosch, Delphi, Denso, Stanadyne) helps ensure you re getting a fair deal.

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### **Conclusion & Recommendation**

The **16551ZHZB high-pressure fuel pump** is a **solid choice** for **2007 2013 Mazda engines** (excluding late SKYACTIV-G models) if purchased from a **reputable brand and seller**. It offers **reliability, compatibility, and cost savings** compared to OEM parts, while preventing **costly engine damage** from a failing pump.

#### **Key Considerations Before Purchase:**

**Verify Engine Compatibility** Ensure the pump matches your **specific Mazda model and engine variant** (e.g., MZR-LP vs. MZR-TL).

**Choose a Trusted Brand** **Bosch, Delphi, or Denso** are reliable; avoid unknown or cheap alternatives.

**Buy from a Reputable Source** Purchase from **authorized dealers, RockAuto, or Amazon (with verified sellers)** to avoid counterfeit parts.

**Prepare for Installation** Have **fuel line connectors, a fuel pressure gauge, and proper safety gear** ready to prevent leaks or spills.

**Consider Professional Installation** If unsure about fuel system handling, a **mechanic or auto shop** can ensure a clean, leak-free installation.

#### **Final Recommendation:**

- **If symptoms (stalling, rough idle, check engine light for P0190/P0191/P0192) persist**, replacing the high-pressure pump is a **practical and preventative solution**.

- **For best results**, opt for a **Bosch or Delphi pump** (e.g., **Bosch 0 261 156 001** or **Delphi 16551ZHZB**) from a **trusted seller**.

- **If budget is a concern**, compare prices across brands, but **prioritize quality over cost** to avoid premature failure.

A well-chosen and properly installed **16551ZHZB pump** will **restore fuel system efficiency, prevent engine damage, and extend the life of your Mazda s fuel injectors**.

Details:

Parts Geek - For 2007 - 2013 Mazda 3 Direct Injection High Pressure Fuel Pump 16551ZHZB 2008: Review Fitment Notes to Ensure Proper Fit condition: New Brand: TRQ Notes: 12 Month Warranty Vehicle: Engine: 2010 - 2013 32.3L 4 Cl, 2007 - 2009 Cl Turbocharged.

part #: 16551zhzb price

  • $209.06

specifications carfuelinjector:

  • for makes: Mazda
  • for years: 2007-2013
  • brand: Trq
  • mpn: 16551zhzb
  • part type: Pressure Fuel Pump
  • manufacturer warranty: 12 Month Warranty
  • notes: High Pressure Fuel Pump
  • years: 2007 2008 2009 2010 2011 2012 2013
  • application: Mazda 3 Direct Injection High Pressure Fuel Pump
  • product name 2: Fuel Pump
  • cs-sku: 400

payments carfuelinjector:

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

general carfuelinjector:

  • condition: New
  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

shipping carfuelinjector:

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

offer carfuelinjector:

  • quantity: 1
  • options: Ship-to-home
  • started: April 14, 2026
  • availability: In Stock
  • sold: 0

seller carfuelinjector:

  • # reviews: 328222
  • city: Littleton, Massachusetts
  • rating: 98.8%

returns carfuelinjector:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller
for makes: mazda, for years: 2007-2013, part type: pressure fuel pump, manufacturer warranty: 12 month warranty, notes: high pressure fuel pump, years: 2007 2008 2009 2010 2011 2012 2013, application: mazda 3 direct injection high pressure fuel pump, product name 2: fuel pump, cs-sku: 400,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 15876523386088603,
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  • New. Offer #1 priced at $209.06 + $0.00 shipping estimate = $209.06* total. 2010-2013 Mazda 3 2.3L 4 Cyl Notes: High Pressure Fuel Pump.FREE SHIPPING

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