Genuine INFINITI Engine Parts
Valve Cover
Valve Cover
Valve Cover
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When an engine needs more than a sensor, the job turns into a rebuild, and a rebuild depends on getting the exact bearing grade, piston size and gasket set. This page lists more than 3,300 genuine INFINITI engine parts, from internal parts to wiring harnesses and complete engine assemblies.
Bearings, Pistons, Gaskets and Complete Engines
Main and rod bearings
Bearings are listed by grade or size, and the grade has to match your block or crankshaft. 12207JA03B is listed as grade 3.4 for the 2014 to 2017 QX60, and 12207AR013 is a grade 3 main bearing for the QX80, M56 and Q70. On the Q50 and Q60, 12247HG01C is an upper bearing from 05/2017. Rod bearings include 12117JA10B, a 0.25 oversize for the QX60, and 121515CA0A for the Q50 3.0L.
Pistons
Pistons are sold with the pin and listed by grade. 120109HP0A is a grade 1 piston for the 2015 and 2016 QX60. On the QX56 and early QX80, A20101LA1C is the right bank standard grade 2 piston and A20101LA2C the grade 3.
Gasket sets and heads
Overhaul gasket sets change at a build date. A0AMAEY04A is listed for the Q50 3.7L up to 06/2014, and A0101EY06A for the M37, Q70 and QX50 from 06/2016. The head gasket 11044EY06B is a left side gasket from 06/2016. For bigger jobs, the page lists cylinder heads such as A1M424HK0A for the Q50 and Q60 3.0L.
Timing chains and complete engines
Oil pump chains are listed by model, such as 150416KA0A for the 2017 to 2020 QX60 and 150417JA0A for the 2025 QX80. If a rebuild is not worth it, complete engines are listed too: 101021NCAF is noted for the Q70 and Q70L without the sport package and for the AWD QX50, and 101021NCMD for the RWD M37 and Q70. Older trucks are covered as well: 110427S025 is a cylinder head and 101017S025 a gasket set, both for the 2004 to 2010 QX56.
Before you order
Read the grade or size stamped on the old part before you order bearings or pistons, then add your VIN. The grid also lists 156 engine wiring harnesses, 106 ECMs and 87 main bearings. For newer engines, oil pump 150255NA0A is listed for the QX50, QX55 and 2025 QX60. Related pages: G37 engine parts, engine components, radiator and cooling parts and Q50 shocks and struts.
FAQs
Are main bearings sold by grade?
Yes. 12207JA03B, for example, is listed as grade 3.4 for the 2014 to 2017 QX60.
Do pistons include the pin?
Yes. The pistons here are listed with the piston pin included.
Which gasket set fits a 2014 Q50 3.7L?
A0AMAEY04A is listed for the Q50 3.7L up to 06/2014.
Do you sell complete engines?
Yes, such as 101021NCAF for the Q70 and Q70L without the sport package.
Are these genuine INFINITI parts?
Yes. They are genuine INFINITI parts sold by Infiniti Parts Net.