ARP Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Mopar B / RB-Series 145-4012 SB51204 Seals bung where O2 sensor

Seals bung where O2 sensor would normally screw in

Manual Shifter - Precision Sport - 240SX

Gen 3 to Gen 4

Aluminum block-off plates seal exhaust ports during engine storage or repairs

ARP Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Mopar B / RB-Series 145-4012 SB51204 Seals bung where O2 sensorARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Cylinder Head Stud Kit Hex