DELPHI SX-4278 Fuel Injection Pressure Regulator

( Brand: Delphi ), ( Type: Fuel Injection Pressure Regulator ), ( Manufacturer Part Number: SX-4278 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C624 55-63 ), ( Item Height: 2.500 ), ( Item Length: 3.000 ), ( Item Weight: 0.1400 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Injection System ), ( Compatible Model: K2500 Suburban ), ( Compatible Year: 1999 1998 1997 1996 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Delphi Fuel Injection Pressure Regulator )

Review DELPHI Fuel Injection Pressure Regulator Chevrolet Fc fits K2500 1996–1999

The Delphi SX-4278 Fuel Injection Pressure Regulator is a crucial component for the fuel injection system in select 1996-1999 Chevrolet K2500 and FC models. This regulator plays a vital role in maintaining the correct fuel pressure for optimal engine performance and fuel efficiency.

The Delphi SX-4278 is a robust and reliable solution, engineered to meet or exceed OEM specifications. It is designed with a durable, high-strength housing that can withstand the rigors of daily use. The internal components are precision machined and made from high-quality materials, ensuring consistent performance over time.

This fuel pressure regulator features a diaphragm-type design, which allows it to regulate fuel pressure with great accuracy. The diaphragm is made from a heat-resistant material, ensuring it can maintain its shape and functionality even under extreme temperatures. The regulator also includes a built-in bypass valve, which helps to prevent fuel system surges and ensures a smooth and steady fuel flow.

The Delphi SX-4278 is easy to install, with a bolt-on design that requires no complex modifications to your vehicle's fuel system. It comes with all necessary hardware, including mounting brackets and gaskets, making the installation process straightforward and hassle-free.

Additionally, this regulator is covered by Delphi's limited lifetime warranty, giving you peace of mind and protection against any manufacturing defects. With its superior quality, easy installation, and comprehensive warranty coverage, the Delphi SX-4278 Fuel Injection Pressure Regulator is the ideal choice for those seeking to maintain the performance and fuel efficiency of their 1996-1999 Chevrolet K2500 or FC.

The Delphi SX-4278 is a fuel injection pressure regulator designed for use in 1996-1999 Chevrolet K2500 and GMC K2500 trucks. Replacing a faulty fuel injection pressure regulator can help improve the performance and fuel efficiency of your vehicle. Here are some pros and cons of buying this specific regulator.

1. OEM (Original Equipment Manufacturer) replacement: The Delphi SX-4278 is an original equipment manufacturer part, which means it is designed, manufactured, and tested to meet the same specifications as the original part on your vehicle.

2. Improved engine performance: A faulty fuel injection pressure regulator can cause poor engine performance, including rough idling, hard starting, and decreased fuel efficiency. Replacing it with a new regulator can help resolve these issues and improve overall engine performance.

3. Easy installation: The Delphi SX-4278 is designed to be easy to install, with a straightforward replacement process. No special tools are required, making it a cost-effective solution for improving engine performance.

1. Cost: The Delphi SX-4278 may be more expensive than some aftermarket alternatives. However, the cost may be offset by the peace of mind that comes with using an OEM replacement part.

2. Potential for additional repairs: A faulty fuel injection pressure regulator may be a symptom of a larger issue within the engine or fuel system. Replacing the regulator may reveal the need for additional repairs, which can add to the overall cost.

The Delphi SX-4278 fuel injection pressure regulator is a high-quality OEM replacement part that can help improve engine performance and fuel efficiency in 1996-1999 Chevrolet K2500 and GMC K2500 trucks. While it may be more expensive than some aftermarket alternatives, the peace of mind that comes with using an OEM part and the potential for improved performance make it a worthwhile investment. If you are experiencing symptoms of a faulty fuel injection pressure regulator, such as rough idling, hard starting, or decreased fuel efficiency, consider replacing it with the Delphi SX-4278.

part # sx4278 prices

• $40.09-$83.68

specifications injectiopug:

• for makes: Chevrolet
• for years: 1996-1999
• brand: Delphi
• type: Fuel Injection Pressure Regulator
• manufacturer part number: SX-4278
• manufacturer warranty: 1 Year / 12, 000 Miles
• interchange part number: C624 55-63
• item height: 2.500
• item length: 3.000
• item weight: 0.1400
• placement on vehicle: Air Fuel Delivery Fuel Injection System
• compatible model: K2500 Suburban
• compatible year: 1999 1998 1997 1996
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Delphi Fuel Injection Pressure Regulator

payments injectiopug:

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

offer injectiopug:

• availability: In Stock
• quantity: 3
• sold: 0
• started: September 28, 2025
• options: Ship-to-home

seller injectiopug:

• # reviews: 574169
• rating: 98.9%

shipping injectiopug:

• service: Standard, Expedited
• transit: 4-6 Days
• cost: $0.00
• class: Standard, Expedited
• type: Fixed

general injectiopug:

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

returns injectiopug:

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

Delphi SX-4278 Is Similar To:

• Delphi 27vrmk44 Fuel Injection Pump For Dodge Ram 3500 2500 1999 2001 2000 1998 2002 (48.5% similar) $2139.23. (September 3rd, 2024)
• Delphi 57tyqp57 High Pressure Injection Oil Pump For F350 Super Duty F250 E350 Club (43.9% similar) $409.24–$797.60. (September 12th, 2024)
• Delphi 56dwwf85 Fuel Injection Pump For 3500 2500 4500 5500 2012 2011 2013 2014 2015 (44.8% similar) $719.53–$1202.13. (September 12th, 2024)
• Delphi 73hqdr86 Fuel Injection Pump For Silverado 2500 Hd Express 3500 4500 Classic (50% similar) $630.24–$1212.77. (September 13th, 2024)
• Delphi 99gjpw67 Fuel Injection Pump For Ram 2500 3500 4500 5500 2008 2009 2007 2010 (45.1% similar) $1063.18. (September 14th, 2024)
• Delphi 22578069 2016 Volvo D13 Diesel Engine Fuel Rail Distributor Oem (30.5% similar) $249.00–$599.99. (October 2nd, 2024)
• Delphi Cv10033 Fuel Injection Idle Air Control Valve Se92174 Fast Free Shipping (43.8% similar) $53.59–$85.81. (October 12th, 2024)
• Delphi Cv10159 Fuel Injection Idle Air Control Valve (48.1% similar) $58.52–$99.51. (November 11th, 2024)
• Delphi Fp10302 1984-1991 Bmw Volkswagen Fuel Pressure Regulator (45.8% similar) $69.48–$111.87. (December 4th, 2024)
• Delphi Fp10388 Fuel Injection Pressure Regulator (65.1% similar) $50.00–$98.24. (December 8th, 2024)
• Delphi Sx-1331 Fuel Injection Pressure Regulator For 1996-1999 Chevrolet C1500 Aj (90.1% similar) $42.50–$165.34. (December 8th, 2024)