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OEM INFINITI Engine Parts

31705X686C - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X686C
FX50. From 2/13.
$1,384.70
MSRP $1,758.34
Save $373.64
21.2% Off
3170561X4C - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-61X4C
To 01/08. Fx. 4.5l.
$2,209.84
MSRP $2,806.14
Save $596.30
21.2% Off
31705X415E - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X415E
FX50.
$1,602.44
MSRP $2,034.84
Save $432.40
21.2% Off
View Details
3170592X4A - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-92X4A
Fx. 3.5l. 4wd. All.
$1,645.11
MSRP $2,089.03
Save $443.92
21.3% Off
31705X381E - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X381E
Fits FX35, G25, G35, G37, G37X, Q40 Rwd. FX35. To 2/11.
$1,923.05
MSRP $2,441.97
Save $518.92
21.3% Off
31705X620D - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X620D
FX37. Rwd.
$1,619.97
MSRP $2,057.10
Save $437.13
21.2% Off
3170591X8C - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-91X8C
Fx. 3.5l. 4wd. All.
$1,238.27
MSRP $1,572.40
Save $334.13
21.2% Off
3170591X8B - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-91X8B
Fx. 4.5l.
$2,124.73
MSRP $2,698.07
Save $573.34
21.3% Off
31705X382A - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X382A
Fits FX35, G25, G35, G37, G37X, Q40, QX56, QX80 Awd. FX35. To 1/11.
$1,108.22
MSRP $1,641.80
Save $533.58
32.5% Off
31705X600E - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X600E
Fits FX37, FX50, QX70 Awd. To 4/14. QX70. 3.7l. To 11/2014. Incl.Auto Trans Control Solenoid.
$1,924.83
MSRP $2,444.22
Save $519.39
21.2% Off
View Details
31705X079C - : Valve Body for Infiniti Image

Valve Body

Infiniti 31705-X079C
Fits QX70 Awd. QX70. 3.7l. From 4/14.
$1,679.77
MSRP $2,133.04
Save $453.27
21.2% Off
View Details
2373135U11 - : Engine Crankshaft Position Sensor for Infiniti Image

Engine Crankshaft Position Sensor

Infiniti 23731-35U11
I30. Front. Location-Side of Engine. 3.0l.
$141.74
MSRP $206.32
Save $64.58
31.3% Off

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Whether your INFINITI engine is stock or built for performance, it has many parts, all with jobs vital to how well that car or SUV you love runs. Take intake valves, for instance. They regulate the engine's ratio of air to fuel. Pistons pressurize that mix, spark plugs ignite it, causing combustion, and exhaust valves regulate the fumes that result. Valve covers protect both sets of valves, a camshaft and rocker arm (with help from a timing belt) help coordinate the valves' activities, and the head gasket and cylinder head, meanwhile, help keep gases and motor oil from escaping. The crankshaft turns engine power into rotary motion, and drive shafts and the transmission use that motion to move the wheels and tires. The oil sump or oil pan, however, stores engine oil, which is used to lubricate it all.

Plenty of other components, like valve springs, connecting rods, and head bolts, ensure everything in the engine fits together the way it's supposed to, too. When any stop working, your "Check Engine" light may turn on, and engine problems often follow. Signs of them include:

  • Higher emissions
  • Worsening fuel economy
  • Trouble accelerating
  • Longer warm-up times
  • Rough idling
  • Stalling
  • The inability to start your vehicle at all
  • An engine inspection will give you a better idea of what's happening. Plug in a code reader and run a careful one.

    Save up to 35% on Genuine INFINITI Engine Parts When You Shop Our Online Parts Store

    Our auto parts store should have what you need. We sell only genuine OEM engine parts, too -- those made by INFINITI and guaranteed to work with your model. You'll pay less when you shop with us, and you can take advantage of quick shipping right to your address -- so 0order online now!