2025 Lexus NX350H Engine Parts

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. Read more

One part is listed for the 2025 Lexus NX350H — MAHLE / CLEVITE 55502.

This table covers the Engine covers. Read more

4 Engine Cover parts are listed for the 2025 Lexus NX350H, from TECHPRO and VARIOUS MFR.

Part numbers include TECHPRO LX1228178, TECHPRO LX1228180 and TECHPRO LX1228172, among others listed above.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

2 Harmonic Balancer parts are listed for the 2025 Lexus NX350H, from ATP and PIONEER.

Part numbers include ATP 102224 and PIONEER DA2224.

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. Read more

2 Intake Manifold Gasket parts are listed for the 2025 Lexus NX350H, from BECK/ARNLEY and MAHLE / CLEVITE.

Listed part numbers: BECK/ARNLEY 0376251 and MAHLE / CLEVITE MS20603.

This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

2 Intake Valve parts for the 2025 Lexus NX350H come from 2 brands — MELLING and QUALCAST.

This group includes MELLING V5832 and QUALCAST 1030532.

This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

4 Motor Mount parts for the 2025 Lexus NX350H come from 3 brands — ANCHOR, DEA / MARMON RIDE CONTROL and PIONEER.

This group includes ANCHOR 10210, ANCHOR 10229 and DEA / MARMON RIDE CONTROL A42154HY and the remaining parts above.

This table covers the Motor Mount kits. Read more

This group shows a single part: ANCHOR 300978.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

12 Oil parts for the 2025 Lexus NX350H come from 5 brands — LIQUI MOLY, VALVOLINE, IDEMITSU and 2 other brands. The "Popular" part is LIQUI MOLY 20328.

The Full Synthetic section lists 11 options from LIQUI MOLY, VALVOLINE, IDEMITSU and 2 other brands — full-synthetic oils. LIQUI MOLY 20328 is listed in this group.

In the High Mileage (>75,000 Miles) grade, IDEMITSU supplies 1 part: oils grouped for high-mileage engines. A representative part number is IDEMITSU 30015121750.

This table covers the seals at the Oil Dipstick / Tube. 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. Read more

One part is listed for the 2025 Lexus NX350H — BECK/ARNLEY 0396661.

This table covers the drain plugs in the oil pan. Read more

3 Oil Drain Plug parts for the 2025 Lexus NX350H come from 2 brands — DORMAN and REIN.

Part numbers include DORMAN 090038, DORMAN 090049 and REIN HWU0112.

This table covers the caps on the oil filler neck. Read more

3 Oil Filler Cap parts for the 2025 Lexus NX350H come from 3 brands — CALORSTAT, GATES and MOTORAD.

Listed part numbers: CALORSTAT OC2312, GATES 31285 and MOTORAD MO155.

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. Read more

14 Oil Filter parts for the 2025 Lexus NX350H come from 11 brands — VARIOUS MFR, BOSCH, FRAM and 8 other brands. The "Popular" part is VARIOUS MFR PG4476.

The Economy section lists 6 options from VARIOUS MFR, BOSCH, FRAM and 2 other brands — the catalog's value-priced group. VARIOUS MFR PG4476 is listed in this group.

The High Performance / Heavy Duty section lists 1 option from MOBIL — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1103A is listed in this group.

In the Standard Replacement grade, ACDELCO, BECK/ARNLEY, BOSCH and 4 other brands supply 7 parts: built to original-equipment specification. A representative part number is ACDELCO PF1233.

This table covers the Oil Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS FLS359.

This table covers the oil pans that hold the engine's oil sump. Read more

2 Oil Pan parts are listed for the 2025 Lexus NX350H, from DORMAN and SPECTRA PREMIUM.

Listed part numbers: DORMAN 266004 and SPECTRA PREMIUM TOP76A.

This table covers the chains that drive the oil pump. Read more

4 Oil Pump Chain parts are listed for the 2025 Lexus NX350H, from JAPANESE OE, MELLING and PREFERRED COMPONENTS INC.

Part numbers include JAPANESE OE A05079AM, JAPANESE OE A05095AM and MELLING 1084, among others listed above.

This table covers the Oil Pump Chain tensioners. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

2 Oil Pump Chain Tensioner parts for the 2025 Lexus NX350H come from 2 brands — MELLING and PREFERRED COMPONENTS INC.

Listed part numbers: MELLING BT7064 and PREFERRED COMPONENTS INC T66361.

This table covers the Oil Pump Control Valve solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

One part is listed for the 2025 Lexus NX350H — GATES VVS398.

This table covers the Oil Pump sprockets. Read more

2 Oil Pump Sprocket parts are listed for the 2025 Lexus NX350H, from MELLING and PREFERRED COMPONENTS INC.

Part numbers include MELLING S1325 and PREFERRED COMPONENTS INC G57020.

This table covers the timing chains that keep the cams in time with the crank. Read more

3 Timing Chain parts are listed for the 2025 Lexus NX350H, from JAPANESE OE, MELLING and PREFERRED COMPONENTS INC.

Part numbers include JAPANESE OE A05094AM, MELLING 1083 and PREFERRED COMPONENTS INC C10142.

This table covers kits that group a timing chain with the related tensioners and guides. Read more

6 Timing Chain & Component Kit parts for the 2025 Lexus NX350H come from 4 brands — PREFERRED COMPONENTS INC, MELLING, ENGINETECH and 1 other brand. The "Popular" part is ENGINETECH TS108.

The Economy section: 2 options from PREFERRED COMPONENTS INC. PREFERRED COMPONENTS INC TS17142 is listed in this group.

Standard Replacement: 4 parts, from MELLING, ENGINETECH and INA. A representative part number is ENGINETECH TS108.

Listed part numbers: ENGINETECH TS108, PREFERRED COMPONENTS INC TS17142 and PREFERRED COMPONENTS INC TS20142, plus the other parts above.

This table covers the guides and dampers that keep the timing chain on its path. Read more

4 Timing Chain Guide / Damper parts are listed for the 2025 Lexus NX350H, from MELLING and PREFERRED COMPONENTS INC.

Listed part numbers: MELLING BT7063, MELLING BG7049 and PREFERRED COMPONENTS INC R70200, plus the other parts above.

This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

2 Timing Chain Tensioner parts for the 2025 Lexus NX350H come from 2 brands — MELLING and PREFERRED COMPONENTS INC.

Listed part numbers: MELLING BT7062 and PREFERRED COMPONENTS INC T66360.

This table covers the crankshaft sprockets that drive the timing chain or belt. Read more

4 Timing Crank Sprocket parts for the 2025 Lexus NX350H come from 2 brands — MELLING and PREFERRED COMPONENTS INC.

Part numbers include MELLING S1323, MELLING S1324 and PREFERRED COMPONENTS INC G50300, among others listed above.

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. Read more

3 Valve Cover Gasket parts for the 2025 Lexus NX350H come from 2 brands — BECK/ARNLEY and MAHLE / CLEVITE.

Listed part numbers: BECK/ARNLEY 0362084, BECK/ARNLEY 0362105 and MAHLE / CLEVITE VS50976.

This table covers the springs that close each intake and exhaust valve. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats. Read more

QUALCAST supplies both parts for the 2025 Lexus NX350H.

This group includes QUALCAST 325507 and QUALCAST 325508.

This table covers the Valve Spring retainers. Read more

One part is listed for the 2025 Lexus NX350H — MELLING VSR726.

This table covers the keepers that lock each valve-spring retainer to the stem. Read more

One part is listed for the 2025 Lexus NX350H — MELLING VL1100.

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. Read more

This group shows a single part: WELLS 2T1306.