Cylinder Heads

2606160U00 - : Lens & Housing for Infiniti Image

Lens & Housing

Infiniti 2606160U00
Without molding.
Discontinued
2215754C01 - : Distributor Rotor for Infiniti Image

Distributor Rotor

Infiniti 2215754C01
G20. To 01/1994.
Discontinued
87602AG962 - : Headrest Guide for Infiniti Image

Headrest Guide

Infiniti 87602AG962
DRIVER SIDE. locking stone. Coupe with sport seat. locking gray. Sedan, locking, gray.
Discontinued
1358767U00 - : Upper Timing Cover for Infiniti Image

Upper Timing Cover

Infiniti 1358767U00
Side, with traction control.
Discontinued
8640541U03 - : Cover for Infiniti Image

Cover

Infiniti 8640541U03
Leather seat.
Discontinued
864053L003 - : Cover for Infiniti Image

Cover

Infiniti 864053L003
Leather seat.
Discontinued
8640541U00 - : Cover for Infiniti Image

Cover

Infiniti 8640541U00
Cloth seat.
Discontinued
8640541U02 - : Cover for Infiniti Image

Cover

Infiniti 8640541U02
Cloth seat.
Discontinued
87602ZC00D - : Headrest Guide for Infiniti Image

Headrest Guide

Infiniti 87602ZC00D
Center. 2004-05, locking, willow. 2006-07, locking, willow. Driver seat. willow. Passenger seat, willow.
Discontinued

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Maintain Your INFINITI's Engine Performance with Quality Cylinder Heads

Don't compromise with unreliable alternatives when genuine components are within reach. That's where Coulter INFINITI excels. Cylinder heads sit atop your engine block and contain combustion chambers where fuel ignites. These precision-machined components manage airflow and seal combustion pressure. Healthy cylinder heads are essential for power output and fuel economy.

Cylinder Head Operation

Cylinder heads house valves, springs, and camshafts that control air and fuel mixture entering each cylinder. They also route exhaust gases out through ports. The head gasket seals the interface between heads and block, containing combustion pressure. Coolant passages within heads regulate temperature. Models like the Q50 and Q60 feature advanced cylinder heads with variable valve timing systems.

Causes of Cylinder Head Damage

Overheating warps cylinder heads, causing coolant leaks and compression loss. Carbon deposits accumulate on valves and combustion chambers, reducing efficiency. Timing chain or belt failures allow valves to contact pistons, bending valves and cracking heads. Poor maintenance leads to sludge buildup that blocks oil passages. Generic replacement heads lack the precise specifications your INFINITI requires. Genuine heads maintain factory tolerances and include updated engineering improvements.

Replacement Indicators

Replace cylinder heads when compression tests reveal significant pressure loss. External coolant leaks from the head gasket area indicate warpage. Excessive oil consumption or white exhaust smoke suggests internal damage. Your vehicle also depends on quality timing belts to protect cylinder heads from catastrophic damage. Mechanics can perform specialized tests to determine if repairs or replacement make better economic sense.

Get back on the road quickly with genuine components from Coulter INFINITI.