Gaskets

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Engine Intake Manifold Gasket

Part Number: A403330P02
Infiniti Infiniti
Other Names: Upper Manifold Gasket, Fuel Injection Plenum Gasket, Gasket-Intake B
Replaces: 1403330P01, 1403330P01AS, 1403330P02, 1403330P03
Description: J30.
Fits:
  • INFINITI:
    • J30
MSRP $14.43
$9.96

Engine Intake Manifold Gasket

Part Number: 140324W00A
Infiniti Infiniti
Other Names: Fuel Injection Plenum Gasket, Gasket-Adapter
Replaces: 140324W000
Description: Lower Plenum to Intake.
Fits:
  • INFINITI:
    • QX4
MSRP $85.85
$58.21

Engine Intake Manifold Gasket

Part Number: 1403260U01
Infiniti Infiniti
Other Names: Fuel Injection Plenum Gasket, Upper Manifold Gasket, Gasket-Intake Manifold
Replaces: 1403260U00
Description: Q45.
Fits:
  • INFINITI:
    • Q45
Backordered

Engine Intake Manifold Gasket

Part Number: 140338J120
Infiniti Infiniti
Other Names: Fuel Injection Plenum Gasket, Gasket-Intake Manifold
Description: Power Valve To Plenum.
Fits:
  • INFINITI:
    • I35
MSRP $22.15
$15.28

Engine Intake Manifold Gasket

Part Number: 140351P100
Infiniti Infiniti
Other Names: Lower Manifold Gasket, Gasket-Manifold
Description: Q45. From 02/1993.
Fits:
  • INFINITI:
    • Q45
Backordered

Engine Intake Manifold Gasket

Part Number: 14009V5210
Infiniti Infiniti
Other Names: Fuel Injection Plenum Gasket, Gasket- Ornament Cover
Replaces: 14009V5201, 14009V5201AS
Description: Cover Gasket.
Fits:
  • INFINITI:
    • M30
Backordered

Engine Intake Manifold Gasket

Part Number: 1403553J10
Infiniti Infiniti
Other Names: Lower Manifold Gasket, Gasket-Manifold To Cylinder Head
Description: G20. To 01/1994.
Fits:
  • INFINITI:
    • G20
MSRP $15.03
$10.37

Engine Intake Manifold Gasket

Part Number: A40351MC0A
Infiniti Infiniti
Other Names: Gasket-Manifold To Cylinder Head
Replaces: 140351MC0A
Description: 5.6L. M56.
Fits:
  • INFINITI:
    • M56,
    • Q70,
    • Q70L
MSRP $93.47
$63.37

Engine Intake Manifold Gasket

Part Number: 1403253J10
Infiniti Infiniti
Other Names: Upper Manifold Gasket, Fuel Injection Plenum Gasket, Gasket-Manifold, Upper
Description: G20. To 01/1994.
Fits:
  • INFINITI:
    • G20
Backordered

Engine Intake Manifold Gasket

Part Number: 14035V5202
Infiniti Infiniti
Other Names: Gasket-Manifold
Replaces: 140350B000
Fits:
  • INFINITI:
    • M30
MSRP $105.58
$71.59

Exhaust Pipe Connector Gasket

Part Number: 20691JK01A
Infiniti Infiniti
Other Names: Gasket-Exhaust
Fits:
  • INFINITI:
    • G25,
    • G35,
    • G37,
    • Q40
MSRP $35.43
$24.45

Exhaust Pipe To Manifold Gasket

Part Number: 20692JK00B
Infiniti Infiniti
Notes: Included with catalytic converter. Part is not reusable, replace only. Part cannot be reused/reinstalled. included with gear assembly....
Other Names: Front Pipe Gasket, Muffler Gasket, Catalytic Converter Gasket, Center Muffler Gasket, Rear Muffler Gasket, Gasket-Exhaust
Replaces: 20692JK00A
Description: 3.0L. 2.0L. 3.5L, 3.7L. 5.0L. Coupe, convertible, rear, with ipl model.
Fits:
  • INFINITI:
    • EX37,
    • FX35,
    • FX37,
    • FX50,
    • G25,
    • G35,
    • G37,
    • M35h,
    • M37,
    • Q40,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX50,
    • QX70
MSRP $13.57
$9.36

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Gaskets: Precision Sealing for Performance Engines

Most drivers understand what gaskets do, but fewer know how they wear down and need to be replaced. These critical sealing components maintain fluid containment and pressure integrity throughout INFINITI's sophisticated engine systems. At INFINITI of Orland Park, we recognize how gasket quality directly affects engine reliability, performance, and longevity in high-performance applications. These precision-engineered seals work under extreme conditions to prevent leaks and maintain the tight tolerances required for INFINITI's advanced powertrains and their impressive performance capabilities.

Advanced Materials and Engineering Specifications

INFINITI gaskets utilize premium materials including multi-layer steel, advanced elastomers, and specialized coatings designed to withstand the demanding conditions of high-performance engines. These seals maintain precise tolerances while accommodating thermal expansion and high-pressure conditions. Sophisticated engines in models like the Q56 and QX4 require gaskets engineered for specific compression ratios, turbocharging applications, and advanced fuel systems. These critical components work alongside all engine systems to maintain proper combustion pressures, fluid containment, and the reliable operation required for INFINITI's performance and luxury reputation.

Replacement Timing and Performance Considerations

INFINITI gaskets typically provide reliable sealing for 120,000 to 180,000 miles before age-related hardening or extreme operating conditions necessitate replacement. High-performance engines and severe service applications may require more frequent attention to maintain sealing integrity. Gasket failure symptoms include external leaks, coolant consumption, combustion pressure loss, or performance degradation that affects drivability. Aftermarket gaskets often lack the precise materials, dimensions, and heat treatment required for INFINITI's demanding applications. Genuine INFINITI gaskets are engineered specifically for each engine application to ensure proper sealing performance, thermal management, and the long-term reliability that maintains your vehicle's performance standards and protects your investment in sophisticated INFINITI engineering.

You might not think gaskets are an important part of your driving experience, but they certainly are.