DJ Rock IV624 Engine Intake Valve
OE Quality 60-Day Returns
DJ Rock

DJ Rock IV624 Engine Intake Valve

Brand DJ Rock IV624
Fits Nissan · 13 vehicles

Direct-fit replacement. Engineered for straightforward installation and reliable compatibility.

Nitride coated. Improves wear resistance, corrosion protection, and heat dissipation.

Premium grade. Built with heat-resistant materials for lasting valve integrity.

Cross-references 021-3333, 25-2647 and V-2647 for the same application. See all 4.

$17.45Free shipping
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Engine Intake Valve for Nissan 240SX and Altima

The DJ Rock IV624 engine intake valve is a direct-fit replacement built for precise airflow control in the combustion chamber. With a nitride-coated finish, 36.6 mm head diameter, 7 mm stem diameter, and 101.3 mm overall length, it is engineered for Nissan applications that require accurate valve timing and stable sealing under heat.

  • Nitride-coated intake valve for improved wear resistance and corrosion protection
  • 36.6 mm valve head diameter, 7 mm stem diameter, 101.3 mm overall length
  • Premium-grade replacement for valvetrain service and rebuild work
  • Single lock groove design
  • Direct-fit engine intake valve for select Nissan 240SX and Nissan Altima applications

Application Details

Compatible with 1991-1998 Nissan 240SX, intake, and 1993-1997 Nissan Altima, intake. The IV624 is built for engines that need consistent intake airflow and dependable valve seating during normal combustion cycles. This part cross-references Monroe Shocks & Struts (e.g., 021-3333, 25-2647) for the same application.

What This Valve Helps Address

  • Low compression caused by worn or heat-stressed intake valves
  • Rough idle related to poor valve sealing
  • Loss of power from restricted intake airflow
  • Valve train wear during engine rebuild or cylinder head service
  • Corrosion or surface wear on the original intake valve

Installation Notes

Verify valve head diameter, stem diameter, overall length, and lock groove count before installation. This intake valve should be matched to the correct cylinder head and valvetrain specifications for the vehicle. Professional cylinder head service practices, including inspection of guides and seals, help ensure proper sealing and long-term operation.

Quality Assurance

DJ Rock intake valves are manufactured to meet or exceed OEM quality standards and use heat-resistant alloy construction with a nitride-coated surface for added durability in high-temperature engine environments. Part number IV624 is built for precise fitment in select Nissan 240SX and Nissan Altima engines.

Related reading

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1998Nissan240SX——N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1997Nissan240SX——N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1997NissanAltima2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1996Nissan240SX——N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1996NissanAltima2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1995Nissan240SX——N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1995NissanAltima2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1994Nissan240SX2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1994NissanAltima2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1993Nissan240SX2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1993NissanAltima2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1992Nissan240SX2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
1991Nissan240SX2.4LL4N/ANitride Coated; 1 Groove; 36.6mm Head Dia.; 7mm Stem Dia.; 101.3mm O.A.L.; Intake
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
021-333325-2647V-2647V5226