2018 Toyota Highlander Engine Parts

This table covers the bearings in the connecting-rod big ends. 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. Read more

6 Connecting Rod Bearing parts for the 2018 Toyota Highlander come from 4 brands — KING ENGINE BEARINGS, TOPLINE, ENGINETECH and 1 other brand.

Listed part numbers: ENGINETECH BB1035, KING ENGINE BEARINGS CR6873SM and KING ENGINE BEARINGS CR6873MC, plus the other parts above.

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. Read more

8 Conversion / Lower Gasket Set parts for the 2018 Toyota Highlander come from 5 brands — AJUSA, TOPLINE, FEL-PRO and 2 other brands. The "Popular" part is FEL-PRO CS26562.

Listed part numbers: FEL-PRO CS26562, AJUSA 54185000 and AJUSA 54281900, plus the other parts above.

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. Read more

6 Crankshaft Main Bearing parts are listed for the 2018 Toyota Highlander, from TOPLINE and MAHLE / CLEVITE.

This group includes MAHLE / CLEVITE MS2376A, MAHLE / CLEVITE MS2357A and TOPLINE TWTO56 and the remaining parts above.

This table covers the sleeves used to restore a grooved crankshaft seal surface. Read more

4 Crankshaft Repair Sleeve parts are listed for the 2018 Toyota Highlander, from WJB / INMOTION PARTS, BCA and NATIONAL.

Part numbers include BCA NS99166, NATIONAL 99166 and WJB / INMOTION PARTS WS99347, among others listed above.

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. Read more

31 Crankshaft Seal parts are listed for the 2018 Toyota Highlander, from ELRING, FEL-PRO, VICTOR REINZ and 7 other brands. FEL-PRO BS40741 carries the "Popular" badge. The notes list position, dimensions and spec qualifiers wherever the manufacturer distinguishes between variants.

This table covers the bolts that clamp the cylinder head to the block. Read more

11 Cylinder Head Bolt parts for the 2018 Toyota Highlander come from 7 brands — APEX, FEL-PRO, TOPLINE and 4 other brands. The "Popular" part is APEX AHB876.

This table covers the Cylinder Head Bolt washers. Read more

2 Cylinder Head Bolt Washer parts for the 2018 Toyota Highlander come from 2 brands — FEL-PRO and MAHLE / CLEVITE.

This group includes FEL-PRO ES72899 and MAHLE / CLEVITE GS33354.

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

18 Cylinder Head Gasket parts for the 2018 Toyota Highlander come from 7 brands — AJUSA, APEX, FEL-PRO and 4 other brands. The "Popular" part is APEX AHG882.

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. Read more

12 Cylinder Head Gasket Set parts for the 2018 Toyota Highlander come from 8 brands — AJUSA, FEL-PRO, MAHLE / CLEVITE and 5 other brands. The "Popular" part is APEX AHS8082.

This table covers the block heaters that warm the coolant or oil in cold weather. Read more

KAT'S HEATERS supplies both parts for the 2018 Toyota Highlander.

Listed part numbers: KAT'S HEATERS 11813 and KAT'S HEATERS 28813.

This table covers the Engine covers. Read more

5 Engine Cover parts for the 2018 Toyota Highlander come from 2 brands — TECHPRO and VARIOUS MFR. The "Popular" part is TECHPRO LX1228131. 4 parts fit every engine; the other 1 is engine-specific.

This group includes TECHPRO LX1228131, TECHPRO TO1228187 and TECHPRO LX1228166 and the remaining parts above.

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. Read more

6 Engine Kit Gasket Set parts for the 2018 Toyota Highlander come from 3 brands — AJUSA, TOPLINE and VICTOR REINZ.

Listed part numbers: AJUSA 50323500, AJUSA 50480500 and AJUSA 50550300, plus the other parts above.

This table covers the exhaust valves that let combustion gas out of 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

6 Exhaust Valve parts are listed for the 2018 Toyota Highlander, from MELLING, TOPLINE, ENGINETECH and 1 other brand.

Listed part numbers: ENGINETECH EM4471, MELLING V5812 and MELLING V3087, plus the other parts above.

This table covers the followers that drive a mechanical fuel pump off the camshaft. Read more

2 Fuel Pump Camshaft Follower parts for the 2018 Toyota Highlander come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS GDF504 and WELLS 5T5023.

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

4 Harmonic Balancer parts for the 2018 Toyota Highlander come from 4 brands — ACKOJA, ATP, DAYCO and 1 other brand.

Part numbers include ACKOJA A700095, ATP 102031 and DAYCO PB1719N, among others listed above.

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

10 Intake Manifold Gasket parts for the 2018 Toyota Highlander come from 6 brands — FEL-PRO, AJUSA, MAHLE / CLEVITE and 3 other brands. The "Popular" part is APEX AMS8820.

This table covers the Intake Manifold Runner 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

This group shows a single part: STANDARD MOTOR PRODUCTS IMRC15.

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

4 Intake Plenum Gasket parts are listed for the 2018 Toyota Highlander, from AJUSA, ELRING, MAHLE / CLEVITE and 1 other brand.

This group includes AJUSA 01645000, ELRING B54040 and MAHLE / CLEVITE MS20627 and the remaining parts above.

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

7 Intake Valve parts are listed for the 2018 Toyota Highlander, from MELLING, TOPLINE, ENGINETECH and 2 other brands.

Part numbers include ENGINETECH IM4470, MELLING V5813 and MELLING V3086, among others listed above.

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

26 Motor Mount parts are listed for the 2018 Toyota Highlander, from ANCHOR, WESTAR, DEA / MARMON RIDE CONTROL and 4 other brands. SKP SKM9238 carries the "Popular" badge. Economy and Standard Replacement are all represented, and Standard Replacement alone accounts for 16 parts.

This table covers the Motor Mount kits. Read more

ANCHOR supplies the 3 Motor Mount Kit parts for the 2018 Toyota Highlander.

Listed part numbers: ANCHOR 300225, ANCHOR 300419 and ANCHOR 300234.

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

33 Oil parts are listed for the 2018 Toyota Highlander, from VALVOLINE, LIQUI MOLY, MOBIL and 3 other brands. LIQUI MOLY 22044 carries the "Popular" badge. Grades run from Full Synthetic through High Mileage (>75,000 Miles); Full Synthetic is the most populated section, led by LIQUI MOLY, VALVOLINE, MOBIL and 3 other brands.

This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant. Read more

2 Oil Cooler parts are listed for the 2018 Toyota Highlander, from ACKOJA and NISSENS.

Listed part numbers: ACKOJA A70600029 and NISSENS 91378.

This table covers the gaskets that seal the Oil Cooler. 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: MAHLE / CLEVITE B33839.

This table covers the Oil Cooler Hose pipes. Read more

One part is listed for the 2018 Toyota Highlander — STANDARD MOTOR PRODUCTS EOC001.

This table covers the Oil Cooler lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early. Read more

6 Oil Cooler Line parts are listed for the 2018 Toyota Highlander, from DORMAN, AUTOTECNICA, SKP and 2 other brands. DORMAN 625519 carries the "Popular" badge.

Part numbers include DORMAN 625519, AUTOTECNICA TY1418804 and DORMAN 625022, among others listed above.

This table covers the Oil Dipstick tubes. Read more

DORMAN supplies both parts for the 2018 Toyota Highlander.

This group includes DORMAN 921141 and DORMAN 921142.

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

This group shows a single part: BECK/ARNLEY 0396661.

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

7 Oil Drain Plug parts are listed for the 2018 Toyota Highlander, from DORMAN, ELRING, AGS and 2 other brands. DORMAN 090038 carries the "Popular" badge. All of them fit every engine offered in the 2018 Highlander.

Listed part numbers: DORMAN 090038, DORMAN 090049 and AGS ODP00011, plus the other parts above.

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. Read more

6 Oil Drain Plug Gasket parts for the 2018 Toyota Highlander come from 6 brands — DORMAN, ULTRA-POWER, APEX and 3 other brands. The "Popular" part is DORMAN 095156. Every part fits all 3 engine options (2.7L L4, 3.5L V6 and 3.5L V6 ELECTRIC/GAS).

Listed part numbers: DORMAN 095156 and APEX ADP1902, plus the other parts above.

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

4 Oil Filler Cap parts are listed for the 2018 Toyota Highlander, from CALORSTAT, DORMAN, GATES and 1 other brand. All of them fit every engine offered in the 2018 Highlander.

This group includes CALORSTAT OC2312, DORMAN 84111 and GATES 31285 and the remaining parts above.

This table covers the gaskets that seal the Oil Filler Cap. 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: AJUSA 00519100.

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

16 Oil Filter parts are listed for the 2018 Toyota Highlander, from VARIOUS MFR, WIX, PRO-TEC and 11 other brands. PRO-TEC PXL57047 carries the "Popular" badge. 11 parts fit every engine; the other 5 are engine-specific.

In the Economy grade, PRO-TEC, ULTRA-POWER, BOSCH and 3 other brands supply 6 parts: the catalog's value-priced group. A representative part number is PRO-TEC PXL57047.

In the High Performance / Heavy Duty grade, WIX and MOBIL supply 2 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 57047XP.

The Standard Replacement section lists 8 options from ACDELCO, HENGST, WIX and 5 other brands — built to original-equipment specification. ACDELCO PF2259 is listed in this group.