Infiniti G20 Engine Parts

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Each of the main parts of your INFINITI G20 engine does something different, and they're all critical. The cylinder head, for example, helps prevent oil and gases leaking. Pistons, for another example, pressurize the engine's fuel and air. Intake valves regulate their levels, spark plugs combust the mix, and exhaust valves regulate fumes.

Valve covers, however, protect engine valves, and the camshaft helps coordinate the valves' activities. The crankshaft, though, turns engine power into rotary motion; it's the drive shaft and transmission that actually use that motion to turn your wheels and tires. The oil pan (alternatively, the oil sump) stores motor oil, which your engine uses for lubrication.

Many other engine parts ensure proper fitment. When they wear out, engine failure often follows. Luckily, there are signs of trouble you can look for, including a lit Check Engine light on the dashboard, increased exhaust emissions, a drop in fuel economy, and issues accelerating. Other symptoms include long engine warm-up times, rough idling, stall-outs, and being unable to start your sedan at all. Noticing any? Inspect your engine carefully to figure out their causes.

Repair Your INFINITI G20 Engine with Peace of Mind | Choose Genuine OEM Parts

Our online store has what you need in stock. We sell only genuine engine parts, too -- those made by INFINITI and guaranteed to work with your G20 sedan. Buy now and we'll ship in short order.

Engine Coolant Thermostat
Part Number: 21200-60J00
Other Names: Thermostat, Thermostat Assembly More Names
Replaces: 21200-60J11
Description: G20. Fuji seikoh. From 07/1999. More Info
Fits:
  • Infiniti:
    • G20
MSRP $26.62
$22.36
MSRP $26.62
$22.36
Engine Expansion Plug
Part Number: 00933-1301A
Positions: Upper, Right, Lower, Left
Other Names: Plug More Names
Replaces: 11021-D0100
Description: All Required. Location-Rear of Head. Location-Top of Block. Location-Cylinder Head. Location-Side of Block. Location-Front of Head.... More Info
Fits:
  • Infiniti:
    • G20,
    • I30,
    • Q45,
    • QX4
MSRP $2.48
$2.09
MSRP $2.48
$2.09
Engine Expansion Plug
Part Number: 11051-53J0A
Positions: Lower
Other Names: Plug-Blind More Names
Replaces: 11051-53J00, 11051-60U01
Description: Engine Block. All Required. Location-Rear of Head. Location-Rear of Block. Location-Front of Head. Location-Front of Block. More Info
Fits:
  • Infiniti:
    • G20,
    • I30,
    • Q45
MSRP $11.10
$9.32
MSRP $11.10
$9.32
Engine Coolant Thermostat
Part Number: 21200-0C82A
Other Names: Thermostat, Thermostat Assembly More Names
Replaces: 21200-0C810, 21200-0C811, 21200-40F00, 21200-53J00, 21200-53J10
Description: G20. Nihon. Fujiseiko. More Info
Fits:
  • Infiniti:
    • G20
MSRP $27.83
$23.38
MSRP $27.83
$23.38
Engine Valve Cover Grommet
Part Number: 13268-31U0A
Other Names: Washer More Names
Replaces: 13268-31U00, 13268-31U01
Fits:
  • Infiniti:
    • G20,
    • I30,
    • Q45
MSRP $3.90
$3.28
MSRP $3.90
$3.28
Engine Valve Cover Grommet
Part Number: 13268-97E0A
Other Names: Washer More Names
Replaces: 1.33E+06, 13268-53J01, 13268-97E00
Description: From 02/1993. More Info
Fits:
  • Infiniti:
    • G20,
    • Q45
MSRP $8.83
$7.42
MSRP $8.83
$7.42
Engine Timing Cover Gasket
Part Number: 15066-5E510
Other Names: Engine Oil Filter Adapter Seal, Seal-O Ring W/Sleeve More Names
Replaces: 15066-0M300, 15066-4Z000, 15066-5E500, 15066-77A01, 15066-85G01, 15066-85G11
Description: O-Ring. VTC Cover. More Info
Fits:
  • Infiniti:
    • FX35,
    • G20,
    • G35,
    • I35,
    • M35,
    • QX4
  • 1 more
MSRP $8.08
$6.79
MSRP $8.08
$6.79
Engine Timing Chain Tensioner
Part Number: 13070-2J203
Other Names: Tensioner, Tensioner Ch More Names
Replaces: 13070-2J200, 13070-53J02, 13070-53J03
Description: G20. Adjuster. More Info
Fits:
  • Infiniti:
    • G20
MSRP $96.30
$72.23
MSRP $96.30
$72.23
Engine Timing Chain Tensioner
Part Number: 13091-2J202
Other Names: Chain Guide, Guide-Chain - Slack Side More Names
Replaces: 13091-2J201
Description: G20. Arm. Slack side. More Info
Fits:
  • Infiniti:
    • G20
MSRP $74.32
$57.97
MSRP $74.32
$57.97
Engine Valve Spring Retainer
Part Number: 13205-53J00
Positions: Lower
Other Names: Seat-Valve Spring - Outer More Names
Fits:
  • Infiniti:
    • G20
MSRP $3.50
$2.94
MSRP $3.50
$2.94
Engine Oil Filler Cap
Part Number: 15255-1P103
Other Names: Filler Cap, Cap, Cap Assembly, Cap Assembly-Oil Filler More Names
Replaces: 15255-1P100, 15255-1P101, 15255-1P102
Description: 4.5L. 3.5L. To 02/2001. From 12/1991. 5.0L, to 1/09. 3.3L, from 1/00. More Info
Fits:
  • Infiniti:
    • FX45,
    • FX50,
    • G20,
    • I30,
    • J30,
    • M45,
    • Q45,
    • QX4
  • 3 more
MSRP $10.50
$8.82
MSRP $10.50
$8.82
Engine Crankshaft Thrust Washer
Part Number: 12280-60J00
Other Names: Washer-Thrust More Names
Fits:
  • Infiniti:
    • G20
MSRP $16.48
$13.85
MSRP $16.48
$13.85
Engine Oil Filler Cap
Part Number: 15255-40F01
Other Names: Cap-Oil Filter More Names
Replaces: 15255-40F00, 15255-42L01
Description: To 12/1991. More Info
Fits:
  • Infiniti:
    • G20,
    • Q45
MSRP $12.95
$10.88
MSRP $12.95
$10.88
Engine Coolant Temperature Sensor
Part Number: 22630-51E02
Other Names: Sensor Assembly Temp More Names
Replaces: 22630-51E00, 22630-51E10, 22630-V5010
Description: To 02/1993. More Info
Fits:
  • Infiniti:
    • G20,
    • J30,
    • Q45
MSRP $29.90
$25.12
MSRP $29.90
$25.12
Engine Coolant Temperature Sender
Part Number: 25080-89903
Other Names: Temp Sending Unit, Temp Gauge More Names
Description: J30. Q45. To 01/1993. More Info
Fits:
  • Infiniti:
    • G20,
    • J30,
    • M30,
    • Q45
MSRP $33.87
$26.08
MSRP $33.87
$26.08
Engine Cylinder Head Bolt
Part Number: 11056-53J01
Other Names: Bolt Cylinder Head S More Names
Replaces: 11056-53J00
Fits:
  • Infiniti:
    • G20
MSRP $7.17
$6.02
MSRP $7.17
$6.02
Engine Connecting Rod Nut
Part Number: 12112-40F00
Other Names: Nut-Connecting Rod More Names
Fits:
  • Infiniti:
    • FX45,
    • G20,
    • M45,
    • Q45,
    • QX4
MSRP $2.92
$2.45
MSRP $2.92
$2.45
Engine Intake Manifold Gasket
Part Number: 14035-53J10
Positions: Lower, Upper
Other Names: Gasket-Manifold To Cylinder Head More Names
Description: To 01/1994. More Info
Fits:
  • Infiniti:
    • G20
MSRP $11.70
$9.83
MSRP $11.70
$9.83
Engine Timing Cover Gasket
Part Number: 15066-4J600
Other Names: Timing Cover Seal, Engine Oil Filter Adapter Seal, Seal-O Ring More Names
Replaces: 15066-77A00
Description: O-Ring. More Info
Fits:
  • Infiniti:
    • G20,
    • QX4
MSRP $9.42
$7.91
MSRP $9.42
$7.91
Engine Oil Drain Plug Gasket
Part Number: 11026-JA00A
Positions: Left Lower, Right Lower
Other Names: Trans Pan Washer, Oil Pan Washer, Drain Plug Gasket, Drain Plug Washer, Lower Oil Pan Gasket, Lower Oil Pan Washer, Drain Plug... More Names
Replaces: 11026-01F10, 11026-01M00, 11026-01M01, 11026-01M02, 11026-31X00, 11026-JX00A
Notes: 175. More Notes
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX45,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • J30,
    • JX35,
    • M30,
    • M35,
    • M35h,
    • M37,
    • M45,
    • M56,
    • Q40,
    • Q45,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX60,
    • QX70,
    • QX80
  • 27 more
MSRP $0.35
$0.29
MSRP $0.35
$0.29
Engine Cylinder Head Bolt Washer
Part Number: 11058-16A01
Other Names: Washer-Plain More Names
Replaces: 11058-16A00, 11058-58S00, 11058-R2000
Description: From 12/1999. More Info
Fits:
  • Infiniti:
    • G20,
    • J30
MSRP $4.83
$4.06
MSRP $4.83
$4.06
Engine Crankshaft Main Bearing Cap Bolt
Part Number: 12293-64J00
Other Names: Bolt-Main Bearing Cap More Names
Fits:
  • Infiniti:
    • G20
MSRP $7.17
$6.02
MSRP $7.17
$6.02
Engine Oil Pump Pickup Tube Gasket
Part Number: 15059-V500A
Other Names: O-Ring More Names
Replaces: 15059-V5001
Description: To 04/94. More Info
Fits:
  • Infiniti:
    • G20,
    • M30
MSRP $8.92
$7.49
MSRP $8.92
$7.49
Engine Oil Pump Pickup Tube Gasket
Part Number: 15053-1E400
Other Names: Gasket - Oil Pump Screen More Names
Description: From 04/94. To 11/1999. More Info
Fits:
  • Infiniti:
    • G20,
    • QX4
MSRP $3.58
$3.01
MSRP $3.58
$3.01
Engine Coolant Temperature Sensor O-Ring
Part Number: 22636-N4200
Other Names: Temp Sensor O-Ring, Temp Sensor Gasket, Gasket Sensor More Names
Description: 3.0L. 3.7L. 3.5L. 1997-00. To 08/2015. From 08/2015. More Info
Notes: 30. More Notes
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX37,
    • G20,
    • G35,
    • I30,
    • M35,
    • M35h,
    • M37,
    • Q40,
    • Q45,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX70,
    • QX80
  • 15 more
MSRP $3.08
$2.59
MSRP $3.08
$2.59
Oil Filter
Part Number: 1520865f0e
Other Names: Engine Oil Filter More Names
Replaces: 15208-65F00, 15208-65F01, 15208-65F0A, 15208-65F0B, 15208-65F0C, 15208-65F0D, 15208-9F600
Description: Q60. Q40. QX50. Coupe. More Info
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • G20,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • JX35,
    • M35,
    • M35h,
    • M37,
    • Q40,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX60,
    • QX70
  • 18 more
MSRP $8.53
$7.17
MSRP $8.53
$7.17
Timing Chain
Part Number: A302H-53J0CVW
Other Names: Engine Timing Chain, Chain-Cmshft More Names
Replaces: 13028-53J01, 13028-53J02, 13028-53J03
Description: G20. More Info
Fits:
  • Infiniti:
    • G20
MSRP $124.50
$93.38
MSRP $124.50
$93.38
Insulator
Part Number: 11210-4M810
Positions: Right
Other Names: Mount, Insulator-Engine Mounting - Front More Names
Replaces: 11210-2J210
Description: G20. Engine mount. Side, auto trans. More Info
Fits:
  • Infiniti:
    • G20
MSRP $154.90
$116.18
MSRP $154.90
$116.18
Insulator
Part Number: 11320-2J210
Positions: Rear
Other Names: Mount, Insulator-Engine Mounting - Rear More Names
Description: G20. Rear, auto trans. Anti-roll mount. More Info
Fits:
  • Infiniti:
    • G20
MSRP $175.75
$131.81
MSRP $175.75
$131.81
Insulator
Part Number: 11270-2J210
Positions: Front
Other Names: Mount, Insulator Assembly-Engine Mounting - Center More Names
Description: G20. Anti-roll mount. Front, auto trans. More Info
Fits:
  • Infiniti:
    • G20
MSRP $158.08
$118.56
MSRP $158.08
$118.56
Manifold Gasket
Part Number: 14035-5U000
Positions: Lower, Upper
Other Names: Engine Intake Manifold Gasket, Gasket-Manifold More Names
Replaces: 14035-78J01, 14035-78J02
Description: G20. Manifold. From 01/1994. More Info
Fits:
  • Infiniti:
    • G20
MSRP $39.32
$33.03
MSRP $39.32
$33.03
Valve Cover Gasket
Part Number: 13270-53J05
Other Names: Engine Valve Cover Gasket, Gasket Rocker Cover More Names
Replaces: 13270-53J01
Description: G20. More Info
Fits:
  • Infiniti:
    • G20
MSRP $20.75
$17.43
MSRP $20.75
$17.43
Oil Seal
Part Number: 13510-53J11
Positions: Front
Other Names: Engine Crankshaft Seal, Seal-Oil - Crankshaft Front More Names
Description: Vendor:NDK. More Info
Fits:
  • Infiniti:
    • G20
MSRP $13.83
$11.62
MSRP $13.83
$11.62
Mount Bracket
Part Number: 11215-4Z000
Positions: Left
Other Names: Stopper, Side Mount Bracket, Stopper-Engine Mounting More Names
Replaces: 11215-0L700, 11215-2J201
Description: 3.5L, to body. 3.0L, side mount. Side, manual trans. More Info
Fits:
  • Infiniti:
    • G20,
    • I30,
    • I35
MSRP $37.12
$31.18
MSRP $37.12
$31.18
Insulator
Part Number: 11220-7J110
Positions: Left
Other Names: Mount, Insulator Assembly-Engine Mounting - Front L More Names
Description: G20. Trans mount. Side, auto trans. More Info
Fits:
  • Infiniti:
    • G20
MSRP $193.92
$145.44
MSRP $193.92
$145.44
Crankshaft Position Sensor
Part Number: 23731-0J200
Other Names: Engine Crankshaft Position Sensor, Sensor Assembly-Magnet More Names
Description: G20. Manual trans. From 01/1994. More Info
Fits:
  • Infiniti:
    • G20,
    • Q45
MSRP $97.70
$73.28
MSRP $97.70
$73.28
Trans Cross-Member Nut
Part Number: 11248-51E01
Positions: Front
Other Names: Trans Cross-member Insulator, Pad-Engine Mounting Member More Names
Description: Front. More Info
Fits:
  • Infiniti:
    • G20
MSRP $8.42
$7.07
MSRP $8.42
$7.07
Trans Cross-Member Nut
Part Number: 11248-51E09
Positions: Rear
Other Names: Trans Cross-member Insulator, Pad-Engine Mounting Member More Names
Replaces: 11248-51E07
Description: Rear. More Info
Fits:
  • Infiniti:
    • G20
MSRP $15.07
$12.66
MSRP $15.07
$12.66
Valve Seals
Part Number: 13207-84A00
Other Names: Engine Valve Stem Oil Seal, Seal-Oil - Vlv More Names
Replaces: 13207-D4200, 13207-D4201
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX45,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • J30,
    • M35,
    • M35h,
    • M37,
    • M45,
    • M56,
    • Q40,
    • Q45,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX70,
    • QX80
  • 24 more
MSRP $6.27
$5.26
MSRP $6.27
$5.26
Oil Pressure Sending Unit
Part Number: 25240-4M40E
Other Names: Engine Oil Pressure Switch, Switch Assembly-Oil Pressure More Names
Replaces: 25240-4M400
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX45,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • I35,
    • M35,
    • M37,
    • M45,
    • M56,
    • Q40,
    • Q45,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX70,
    • QX80
  • 21 more
MSRP $25.15
$21.13
MSRP $25.15
$21.13
Oil Pressure Sending Unit
Part Number: 25240-8996E
Other Names: Engine Oil Pressure Switch, Switch Assembly-Oil Pressure More Names
Replaces: 25240-89915, 25240-89920, 25240-89960
Description: G20. I30. QX4. J30, Q45. To 01/01. More Info
Fits:
  • Infiniti:
    • G20,
    • I30,
    • I35,
    • J30,
    • M30,
    • Q45,
    • QX4
  • 2 more
MSRP $24.18
$20.31
MSRP $24.18
$20.31
Chain Guide
Part Number: 13085-1N500
Positions: Lower
Other Names: Engine Timing Chain Guide, Guide Chain - Tension Side More Names
Replaces: 13085-1N501
Description: G20. Tension side. More Info
Fits:
  • Infiniti:
    • G20
MSRP $30.42
$25.55
MSRP $30.42
$25.55
Rear Main Seal
Part Number: 12279-AD205
Positions: Rear
Other Names: Engine Crankshaft Seal, Oil Pan Seal, Oil Seal-Crank More Names
Replaces: 12279-0M300, 12279-0M310, 12279-18V00, 12279-1N500, 12279-30P00, 12279-6N210, 12279-77A05, 12279-77A06, 12279-77A10, 12279-85Y00, 12279-D0100
Description: Nok. G20. J30. QX4. Q45. Oil seal. Rear, to 11/93. More Info
Fits:
  • Infiniti:
    • G20,
    • J30,
    • M30,
    • Q45,
    • QX4
MSRP $40.30
$33.85
MSRP $40.30
$33.85
Crankshaft Gear
Part Number: 13021-53J00
Other Names: Engine Timing Crankshaft Sprocket, Timing Gear Set, Sprocket-Crankshaft More Names
Replaces: 13021-40F01
Description: G20. Crankshaft. More Info
Fits:
  • Infiniti:
    • G20
MSRP $18.85
$15.83
MSRP $18.85
$15.83
Temp Sending Unit
Part Number: 25080-89907
Other Names: Coolant Temp Sensor, Engine Coolant Temperature Sender, Sensor-Temperature More Names
Description: I30. Q45. G20. QX4. I35. From 01/1993. More Info
Fits:
  • Infiniti:
    • G20,
    • I30,
    • I35,
    • Q45,
    • QX4
MSRP $32.13
$26.99
MSRP $32.13
$26.99
Blade Nut
Part Number: 92594-0M30A
Positions: Left, Right
Other Names: Engine Cooling Fan Blade Nut, Fan Blade Nut, Nut More Names
Replaces: 92594-0M300
Description: 3.0L. 3.5L. 4.5L. 3.7L. Sedan,. More Info
Notes: 89. More Notes
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX37,
    • FX45,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • M35h,
    • M37,
    • M56,
    • Q40,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX50,
    • QX70
  • 14 more
MSRP $3.50
$2.94
MSRP $3.50
$2.94
Front Cover Seal
Part Number: 13510-53J01
Positions: Front
Other Names: Oil Seal, Engine Crankshaft Seal, Seal-Oil - Crankshaft Front More Names
Description: G20. From 02/1996. More Info
Fits:
  • Infiniti:
    • G20
MSRP $13.83
$11.62
MSRP $13.83
$11.62
Cap
Part Number: 15255-1P110
Other Names: Filler Cap, Engine Oil Filler Cap, Cap Assembly-Oil Filler More Names
Replaces: 15255-1GZ0A, 15255-JK20A
Description: 3.0L. 5.6L. 2.5L. Coupe,. 3.5L, 3.7L. 3.5L, 2006-08. 3.5L, 2009-10. From 02/2001. 5.0L, from 1/09. More Info
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • M35,
    • M35h,
    • M37,
    • M56,
    • Q40,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX70,
    • QX80
  • 20 more
MSRP $31.08
$26.11
MSRP $31.08
$26.11
Drain Plug
Part Number: 11128-01M0B
Positions: Lower
Other Names: Engine Oil Drain Plug, Lower Oil Pan Drain Plug, Oil Pan Drain Plug, Plug Drain More Names
Replaces: 11128-01M00, 11128-01M01, 11128-01M05
Description: 3.0L. 5.6L. 5.0L. 3.3L. 2.0L. 2.5L. Coupe,. 3.5L, 3.7L. 3.5L, 2006-08. More Info
Notes: 175. More Notes
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • J30,
    • JX35,
    • M30,
    • M35,
    • M35h,
    • M37,
    • M56,
    • Q40,
    • Q45,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX60,
    • QX70,
    • QX80
  • 25 more
MSRP $7.13
$5.99
MSRP $7.13
$5.99
Coolant Temp Sensor
Part Number: 22630-ED000
Other Names: Temp Sensor, Engine Coolant Temperature Sensor, Sensor, Temp Sending Unit, Oil Temp Sending Unit, Oil Level Sensor More Names
Replaces: 22630-44B10, 22630-44B20, 22630-71L00
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX45,
    • FX50,
    • G20,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • J30,
    • M35,
    • M35h,
    • M37,
    • M45,
    • M56,
    • Q40,
    • Q45,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX56,
    • QX70,
    • QX80
  • 24 more
MSRP $43.88
$36.86
MSRP $43.88
$36.86

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