WALKER PRODUCTS C552 Fuel Injection Pressure Regulator Wq 50-42 D21

( Brand: Walker Products ), ( Type: Fuel Injection Pressure Regulator ), ( Manufacturer Part Number: SX-QYMF 2004 2003 2002 2001 2000 1999 ), ( Manufacturer Warranty: 90 Days ), ( Ipn: C552 50-42 ), ( Item Height: 1.500 ), ( Item Length: 3.000 ), ( Item Weight: 0.2700 ), ( Item Width: 2.250 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Injection System ), ( Compatible Model: D21 Frontier Pathfinder Pickup Quest Xterra ), ( Compatible Year: 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Walker Products Fuel Injection Pressure Regulator )

Review WALKER PRODUCTS 50-42 Fuel Injection Pressure Regulator Nissan D21 Wq fits FRONTIER 1987–2004

Introducing the Walker C552 Fuel Injection Pressure Regulator, an essential component designed specifically for the 1987-2004 Nissan D21 Frontier WQ. This part is a direct replacement for the original equipment regulator and is engineered to meet or exceed OEM performance.

The Walker C552 Regulator is a crucial element of your vehicle's fuel system, responsible for maintaining the correct fuel pressure in the system. It features a durable cast aluminum housing, which not only provides excellent heat dissipation but also adds strength and longevity to the component.

The regulator's diaphragm is made of a high-quality, heat-resistant material that ensures consistent performance under various operating conditions. Its internal components are designed to provide precise fuel pressure control, ensuring optimal engine performance and fuel efficiency.

The Walker C552 Regulator is designed with a convenient mounting bracket that securely attaches to your vehicle, making installation quick and easy. It also comes with a new gasket to ensure a leak-free installation.

This regulator is compatible with both gasoline and diesel engines and is backed by Walker's limited lifetime warranty. So, you can trust that this product will deliver reliable performance for years to come.

In summary, the Walker C552 Fuel Injection Pressure Regulator is a high-performance, durable, and reliable component that is designed to meet the specific needs of your 1987-2004 Nissan D21 Frontier WQ. It is an excellent choice for anyone looking to maintain their vehicle's fuel system in top condition.

The Walker C552 50-42 Fuel Injection Pressure Regulator is a replacement part designed for use in 1987-2004 Nissan Frontier WQ models with a 2.4L inline-4 4000 series engine. This regulator is responsible for maintaining the correct fuel pressure to ensure proper engine performance. Here are some pros and cons of purchasing and installing this part.

1. Improved engine performance: A faulty fuel pressure regulator can result in poor engine performance, including rough idling, stalling, and decreased power. Replacing the faulty regulator with a new one, like the Walker C552, can help restore proper engine performance.

2. Longer lifespan: The Walker C552 is designed to last longer than the original equipment regulator. This can save you money in the long run, as you won't have to keep replacing the part as often.

3. Easy installation: The Walker C552 is a direct replacement part, meaning it fits and functions exactly like the original equipment part. This makes installation relatively straightforward and can save you time and money on labor costs.

4. OE-quality: The Walker C552 is manufactured to meet OE specifications, ensuring that it functions as intended and provides the same level of performance as the original part.

1. Cost: While the Walker C552 may save you money in the long run, the upfront cost of purchasing and installing the part can be significant. This may be a consideration for those on a tight budget.

2. Availability: Depending on your location and the availability of the part at local auto parts stores, you may need to order the Walker C552 online. This can add additional time to the installation process.

3. DIY installation: While the Walker C552 is designed for easy installation, some may not feel comfortable performing the installation themselves. In this case, it may be necessary to pay for professional installation, adding to the overall cost.

The Walker C552 50-42 Fuel Injection Pressure Regulator is a high-quality replacement part designed to restore proper engine performance and improve longevity in 1987-2004 Nissan Frontier WQ models with a 2.4L inline-4 engine. While the upfront cost may be a consideration, the long-term savings and peace of mind that come with a reliable and functioning fuel pressure regulator make it a worthwhile investment. If you are comfortable with the installation process or have access to professional installation services, the Walker C552 is a recommended choice.

specifications injectiopug:

• for models: Frontier
• for makes: Nissan
• for years: 1987-2004
• brand: Walker Products
• type: Fuel Injection Pressure Regulator
• manufacturer part number: SX-QYMF 2004 2003 2002 2001 2000 1999
• manufacturer warranty: 90 Days
• interchange part number: C552 50-42
• item height: 1.500
• item length: 3.000
• item weight: 0.2700
• item width: 2.250
• placement on vehicle: Air Fuel Delivery Fuel Injection System
• compatible model: D21 Frontier Pathfinder Pickup Quest Xterra
• compatible year: 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Walker Products Fuel Injection Pressure Regulator

general injectiopug:

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

seller injectiopug:

• rating: 99.7%
• # reviews: 661928

returns injectiopug:

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

offer injectiopug:

• options: Ship-to-home
• availability: In Stock
• started: May 28, 2026
• quantity: 1
• sold: 0

payments injectiopug:

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

shipping injectiopug:

• transit: 2-6 Days
• service: Standard, Expedited
• class: Standard, Expedited
• type: Fixed
• cost: $0.00

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