2025 Lexus IS300 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

2 Cylinder Head Gasket parts for the 2025 Lexus IS300 come from FEL-PRO.

Listed part numbers: FEL-PRO 26869PT and FEL-PRO 26877PT.

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

This group shows a single part: FEL-PRO MS97437.

This table covers the gaskets that seal the Intake Plenum. 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 IS300 — BECK/ARNLEY 0374893.

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 are listed for the 2025 Lexus IS300, from MELLING and QUALCAST.

This group includes MELLING V3086 and QUALCAST 1013086.

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

One part is listed for the 2025 Lexus IS300 — DEA / MARMON RIDE CONTROL A72019.

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

36 Oil parts are listed for the 2025 Lexus IS300, from VALVOLINE, LIQUI MOLY, IDEMITSU and 3 other brands. LIQUI MOLY 2208 carries the "Popular" badge. They are grouped as Full Synthetic and High Mileage (>75,000 Miles), with Full Synthetic the largest group at 29 parts from LIQUI MOLY, IDEMITSU, VALVOLINE and 3 other brands.

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

3 Oil Drain Plug parts are listed for the 2025 Lexus IS300, from 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

2 Oil Filler Cap parts are listed for the 2025 Lexus IS300, from CALORSTAT and MOTORAD.

This group includes CALORSTAT OC2312 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 are listed for the 2025 Lexus IS300, from FRAM, VARIOUS MFR, WIX and 7 other brands. WIX 57173XP carries the "Popular" badge.

In the Economy grade, CHAMP / LUBER-FINER, FRAM, FVP and 2 other brands supply 5 parts: the catalog's value-priced group. A representative part number is CHAMP / LUBER-FINER P968.

In the High Performance / Heavy Duty grade, WIX, FRAM and MOBIL supply 3 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is WIX 57173XP.

The Standard Replacement section lists 6 options from BOSCH, WIX, ACDELCO and 3 other brands — built to original-equipment specification. BOSCH 3981 is listed in this group.

This table covers the Oil Filter covers. Read more

2 Oil Filter Cover parts for the 2025 Lexus IS300 come from 2 brands — MOTORAD and SKP.

Listed part numbers: MOTORAD MO301 and SKP SK917016.

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

This group shows a single part: SPECTRA PREMIUM TOP36A.

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

2 Timing Chain parts for the 2025 Lexus IS300 come from MELLING.

This group includes MELLING 1026 and MELLING 953.

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

2 Timing Chain & Component Kit parts are listed for the 2025 Lexus IS300, from INA and MELLING.

Listed part numbers: INA ZC1887 and MELLING 3953SX.

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

3 Timing Chain Guide / Damper parts for the 2025 Lexus IS300 come from MELLING.

This group includes MELLING BG6046, MELLING BT6049 and MELLING BG6050.

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

MELLING supplies the 3 Timing Chain Tensioner parts for the 2025 Lexus IS300.

Listed part numbers: MELLING BT6048, MELLING BT6047 and MELLING BT6051.

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

BECK/ARNLEY supplies both parts for the 2025 Lexus IS300.

Part numbers include BECK/ARNLEY 0362110 and BECK/ARNLEY 0362111.

This table covers the Valve Cover grommets. Read more

One part is listed for the 2025 Lexus IS300 — BECK/ARNLEY 0396605.

This table covers the Valve Spring retainers. Read more

This group shows a single part: MELLING VSR726.

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

This group shows a single part: 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

One part is listed for the 2025 Lexus IS300 — WELLS 2T1307.