2026 Toyota Highlander Engine Parts

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

This group shows a single part: QUALCAST 1030532.

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

38 Oil parts for the 2026 Toyota Highlander come from 4 brands — IDEMITSU, VALVOLINE, MOBIL and 1 other brand. The "Popular" part is IDEMITSU 30016051953. Full Synthetic, High Mileage (>75,000 Miles) and Racing are all represented, and Full Synthetic alone accounts for 29 parts.

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

This group shows a single part: GATES 31285.

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 for the 2026 Toyota Highlander come from 9 brands — VARIOUS MFR, WIX, BOSCH and 6 other brands. The "Popular" part is VARIOUS MFR PG4476. 8 parts fit every engine; the other 8 are engine-specific.

The Economy section lists 7 options from VARIOUS MFR, FVP, PRO-TEC and 1 other brand — the catalog's value-priced group. VARIOUS MFR PG4476 is listed in this group.

The High Performance / Heavy Duty section lists 2 options from MOBIL and WIX — 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, WIX, ACDELCO, BECK/ARNLEY and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is ACDELCO PF1233.

1 further part sits outside the graded sections, with the same engine-level match.

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

3 Oil Pump Chain parts are listed for the 2026 Toyota Highlander, from MELLING and S.A. GEAR.

Listed part numbers: MELLING 1110, MELLING 1084 and S.A. GEAR C1273.

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

This group shows a single part: MELLING BT7064.

This table covers the Oil Pump sprockets. Read more

2 Oil Pump Sprocket parts are listed for the 2026 Toyota Highlander, from MELLING and S.A. GEAR.

This group includes MELLING S1325 and S.A. GEAR S1581.

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 2026 Toyota Highlander, from MELLING and S.A. GEAR.

This group includes MELLING 1109, MELLING 1083 and S.A. GEAR C1272.

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

7 Timing Chain & Component Kit parts for the 2026 Toyota Highlander come from 3 brands — MELLING, S.A. GEAR and INA.

The Economy section: 2 options from S.A. GEAR. S.A. GEAR 76492S is listed in this group.

Standard Replacement: 2 parts, from MELLING. A representative part number is MELLING 31109SAX.

3 further parts sit outside the graded sections, with the same engine-level match.

Listed part numbers: S.A. GEAR 76492S, S.A. GEAR 76492 and MELLING 31109SAX, plus the other parts above.

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

7 Timing Chain Guide / Damper parts are listed for the 2026 Toyota Highlander, from MELLING and S.A. GEAR.

Part numbers include MELLING BG7070, MELLING BG7071 and MELLING BT7088, among others listed 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

3 Timing Chain Tensioner parts for the 2026 Toyota Highlander come from 2 brands — MELLING and S.A. GEAR.

Part numbers include MELLING BT7089, MELLING BT7062 and S.A. GEAR 91482.

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

4 Timing Crank Sprocket parts for the 2026 Toyota Highlander come from 2 brands — MELLING and S.A. GEAR.

This group includes MELLING S1323, MELLING S1324 and S.A. GEAR S1579 and the remaining parts above.

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 2026 Toyota Highlander.

This group includes QUALCAST 325507 and QUALCAST 325508.