Standard Ignition SK33 Fuel Injection Pressure Regulator O-Ring

Fuel Injection Pressure Regulator O-Ring

Standard Ignition SK33 is a fuel injection pressure regulator O-ring for sealing the regulator connection in the fuel system. It is a direct-fit sealing component for select Nissan and INFINITI applications, including Nissan Maxima, 240SX, Altima, 300ZX, Sentra, and INFINITI G20, I30, J30, and QX4.

• Fuel injection pressure regulator O-ring for air and fuel delivery sealing
• 0.10 inch thick sealing profile
• Direct replacement for select Nissan and INFINITI fuel system applications
• Cross-reference: 1661853J00
• Standard Ignition part number SK33

Fitment Details

Compatible With select 1985-1999 Nissan Maxima, 1991-1998 Nissan 240SX, 1993-1997 Nissan Altima, 1993-1996 Nissan 300ZX, and 1991-1994 Nissan Sentra. Also fits 1991-1996 INFINITI G20, 1997-1999 INFINITI G20, 1995-1997 INFINITI J30, 1997-1999 INFINITI I30, and 1997-1999 INFINITI QX4.

What This Part Helps Address

• Fuel seepage at the pressure regulator seal
• Hard starting caused by a leaking regulator O-ring
• Fuel odor from a compromised seal
• Pressure loss at the regulator connection
• Maintenance replacement during fuel system service

Installation Notes

Verify the regulator groove and mating surfaces are clean before installation. Match the 0.10 inch thick profile to the original seal specification for the application. Confirm vehicle year, make, and model against the fitment list before ordering.

Quality Assurance

Standard Ignition supplies replacement ignition and fuel system service parts for import applications. SK33 is built as a direct replacement sealing component for the listed Nissan and INFINITI vehicles.