2020 Infiniti QX70 Engine Parts

Engine:
3.7L V6

The 2020 Infiniti QX70 has 38 engine parts with verified fitment on this page — 19 part types and 10 brands, covering the 3.7L V6 engine. Each part includes a manufacturer part number and application notes.

The engine on the 2020 Infiniti QX70 covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Cylinder Head Gasket (4 parts), Oil Drain Plug (4 parts) and Crankshaft Main Bearing (3 parts). The other 16 part types cover the remaining 27 parts.

Conversion / Lower Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 54212000
🇲🇽 MX
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This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Crankshaft Main Bearing

High Performance

Brand Part Number Markets Notes Buy
KING ENGINE BEARINGS MB4524XPC
🇲🇽 MX
Setpmaxkote, polymer coated
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KING ENGINE BEARINGS MB4524XPCX
🇲🇽 MX
Setpmaxkote, polymer coated
Fitment notes — KING ENGINE BEARINGS MB4524XPCX
Setpmaxkote, polymer coatedwith Extra Oil Clearance
(Size: Standard)
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Standard Replacement

Brand Part Number Markets Notes Buy
KING ENGINE BEARINGS MB4524SI
🇲🇽 MX
BI-Metal (aluminum silicon base)Set
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This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Crankshaft Seal

Brand Part Number Markets Notes Buy
AJUSA 15060100
🇲🇽 MX
RearCounter Clockwise
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AJUSA 15092900
🇲🇽 MX
FrontClockwise
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This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Crankshaft Thrust Washer

Brand Part Number Markets Notes Buy
KING ENGINE BEARINGS TW1042AM
🇲🇽 MX
BI-Metal (aluminum base)
Fitment notes — KING ENGINE BEARINGS TW1042AM
BI-Metal (aluminum base)
(Size: Standard)
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This table covers the Crankshaft Thrust washers.

Cylinder Head Bolt

Brand Part Number Markets Notes Buy
AJUSA 81062500
🇲🇽 MX
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This table covers the bolts that clamp the cylinder head to the block.

Cylinder Head Gasket

Brand Part Number Markets Notes Buy
AJUSA 10181300
🇲🇽 MX
Multi Layered Steel
Fitment notes — AJUSA 10181300
Multi Layered Steel
Right96 Bore Diameter
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AJUSA 10181200
🇲🇽 MX
Multi Layered Steel
Fitment notes — AJUSA 10181200
Multi Layered Steel
Left96 Bore Diameter
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AJUSA 52408100
🇲🇽 MX
Right
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AJUSA 52408200
🇲🇽 MX
Left
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This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Cylinder Head Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 52408000
🇲🇽 MX
Complete Set
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This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Engine Kit Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 50369800
🇲🇽 MX
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This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Harmonic Balancer

Brand Part Number Markets Notes Buy
ATP 102475
🇲🇽 MX
Serpentine
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DORMAN 594554
🇲🇽 MX
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This table covers the crankshaft pulleys / harmonic balancers at the front of the engine.

Intake Manifold Gasket

Brand Part Number Markets Notes Buy
AJUSA 13241200
🇲🇽 MX
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This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Oil Drain Plug

Brand Part Number Markets Notes Buy
AGS ODP00011
🇲🇽 MX
M12x1.25
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DORMAN 090038
🇲🇽 MX
StandardM12-1.25
Fitment notes — DORMAN 090038
StandardM12-1.25Head Size 14MM
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DORMAN 090049
🇲🇽 MX
Pilot PointM12-1.25
Fitment notes — DORMAN 090049
Pilot PointM12-1.25Head Size 13MM
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REIN HWU0112
🇲🇽 MX
View on
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This table covers the drain plugs in the oil pan.

Oil Drain Plug Gasket

Brand Part Number Markets Notes Buy
DORMAN 097134
🇲🇽 MX
SizeM10
Fitment notes — DORMAN 097134
SizeM10Inside Dia: 0.44"/11.2mmOutside Dia.: 0.69"/17.6mmThickness: 0.139"/3.55mm
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DORMAN 997134CD
🇲🇽 MX
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This table covers the crush washers and gaskets under the oil drain plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Oil Filter

Economy

Brand Part Number Markets Notes Buy
VARIOUS MFR PG4612
🇲🇽 MX
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VARIOUS MFR PO4612NS1
🇲🇽 MX
OE Style
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Standard Replacement

Brand Part Number Markets Notes Buy
VARIOUS MFR PG4612EX
🇲🇽 MX
Extended Life
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This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.

Oil Pan

Brand Part Number Markets Notes Buy
DORMAN 264566
🇲🇽 MX
Lower
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SKP SK264566
🇲🇽 MX
Lower
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SPECTRA PREMIUM NSP31A
🇲🇽 MX
Lower
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This table covers the oil pans that hold the engine's oil sump.

Timing Cover Gasket

Brand Part Number Markets Notes Buy
AJUSA 01181200
🇲🇽 MX
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Amazon

This table covers the gaskets that seal the Timing Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Valve Cover Gasket

Brand Part Number Markets Notes Buy
AJUSA 56058700
🇲🇽 MX
Right
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AJUSA 56058800
🇲🇽 MX
Left
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This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Valve Stem Seal

Brand Part Number Markets Notes Buy
AJUSA 12012100
🇲🇽 MX
5 x 9.7 x 11.5
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AJUSA 57058800
🇲🇽 MX
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This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Variable Valve Timing (VVT) Solenoid / Actuator

Brand Part Number Markets Notes Buy
DORMAN 917294
🇲🇽 MX
Left
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ROSTRA 790043
🇲🇽 MX
Left
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This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.

Variable Valve Timing (VVT) Sprocket

Brand Part Number Markets Notes Buy
DORMAN 916525
🇲🇽 MX
Intake (Right)
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DORMAN 916526
🇲🇽 MX
Intake (Left)
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This table covers the cam phaser sprockets used by the variable-valve-timing system.

Buying Engine Parts for a 2020 Infiniti QX70

On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.

  • Confirm you have the 3.7L V6 engine — every part on this page is matched to it.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Cylinder Head Gasket and Oil Drain Plug .

Frequently Asked Questions

How many engine parts fit the 2020 Infiniti QX70?

Our catalog currently lists 38 engine parts for the 2020 Infiniti QX70 across 19 subcategories and 10 brands, covering the 3.7L V6 engine. Each part is matched to the engine(s) it fits.

What are the signs of engine problems on a 2020 Infiniti QX70?

Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Infiniti QX70 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2020 Infiniti QX70?

Every part on this page is matched to the 3.7L V6 engine. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2020 Infiniti QX70

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.