2018 Toyota 4RUNNER Engine Parts

This table covers the connecting rods between each piston and the crankshaft. Read more

This group shows a single part: TOPLINE CRTO47.

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

5 Connecting Rod Bearing parts for the 2018 Toyota 4RUNNER come from 4 brands — MAHLE / CLEVITE, ENGINETECH, KING ENGINE BEARINGS and 1 other brand. The "Popular" part is ENGINETECH BB1029.

This group includes ENGINETECH BB1029, KING ENGINE BEARINGS CR6872SM and MAHLE / CLEVITE CB1890A and the remaining 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

5 Conversion / Lower Gasket Set parts for the 2018 Toyota 4RUNNER come from 5 brands — FEL-PRO, AJUSA, APEX and 2 other brands. The "Popular" part is FEL-PRO CS26330.

Listed part numbers: FEL-PRO CS26330, AJUSA 54249500 and APEX ACS8071, 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

5 Crankshaft Main Bearing parts are listed for the 2018 Toyota 4RUNNER, from TOPLINE, ENGINETECH, KING ENGINE BEARINGS and 1 other brand. ENGINETECH BC1027 carries the "Popular" badge.

Part numbers include ENGINETECH BC1027, KING ENGINE BEARINGS MB4526SI and MAHLE / CLEVITE MS2298A, among others listed 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 4RUNNER, from WJB / INMOTION PARTS, BCA and NATIONAL.

This group includes BCA NS99166, NATIONAL 99166 and WJB / INMOTION PARTS WS99166 and the remaining parts 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

15 Crankshaft Seal parts are listed for the 2018 Toyota 4RUNNER, from VICTOR REINZ, FEL-PRO, AJUSA and 6 other brands. FEL-PRO TCS46080 carries the "Popular" badge.

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

7 Cylinder Head Bolt parts for the 2018 Toyota 4RUNNER come from 7 brands — ENGINETECH, FEL-PRO, APEX and 4 other brands. The "Popular" part is ENGINETECH HB264.

This group includes ENGINETECH HB264, FEL-PRO ES72249 and APEX AHB871 and the remaining parts above.

This table covers the Cylinder Head Bolt washers. Read more

This group shows a single part: 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

13 Cylinder Head Gasket parts for the 2018 Toyota 4RUNNER come from 6 brands — AJUSA, FEL-PRO, ULTRA-POWER and 3 other brands. The "Popular" part is FEL-PRO 26564PT.

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

5 Cylinder Head Gasket Set parts for the 2018 Toyota 4RUNNER come from 4 brands — FEL-PRO, ULTRA-POWER, AJUSA and 1 other brand. The "Popular" part is ULTRA-POWER HS26563PT.

This group includes ULTRA-POWER HS26563PT, AJUSA 52482900 and APEX AHS8086 and the remaining parts above.

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 4RUNNER.

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

This table covers the Engine covers. Read more

This group shows a single part: TECHPRO TO1228244.

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

3 Engine Kit Gasket Set parts for the 2018 Toyota 4RUNNER come from 3 brands — AJUSA, TOPLINE and VICTOR REINZ.

Part numbers include AJUSA 50435700, TOPLINE CGSTO47B and VICTOR REINZ 015407001.

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

4 Exhaust Valve parts are listed for the 2018 Toyota 4RUNNER, from ENGINETECH, MELLING, SBI and 1 other brand.

Listed part numbers: ENGINETECH EM4457, MELLING V3087 and SBI 13087, plus the other parts above.

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

6 Harmonic Balancer parts for the 2018 Toyota 4RUNNER come from 6 brands — SKP, DORMAN, ATP and 3 other brands. The "Popular" part is SKP SK594350.

The Economy section lists 1 option from SKP — the catalog's value-priced group. SKP SK594350 is listed in this group.

In the Standard Replacement grade, DORMAN, ATP, DAYCO and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is DORMAN 594350.

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

This group includes SKP SK594350, DORMAN 594350 and ATP 102334 and the remaining parts 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

5 Intake Manifold Gasket parts for the 2018 Toyota 4RUNNER come from 5 brands — FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. The "Popular" part is FEL-PRO MS97237.

Part numbers include FEL-PRO MS97237, APEX AMS8861 and BECK/ARNLEY 0376244, among others listed above.

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

5 Intake Plenum Gasket parts are listed for the 2018 Toyota 4RUNNER, from FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. FEL-PRO MS97236 carries the "Popular" badge.

Part numbers include FEL-PRO MS97236, APEX AMS8860 and BECK/ARNLEY 0374892, among others listed 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

5 Intake Valve parts are listed for the 2018 Toyota 4RUNNER, from MELLING, ENGINETECH, QUALCAST and 2 other brands. MELLING V3086 carries the "Popular" badge.

Listed part numbers: MELLING V3086, ENGINETECH IM4456 and QUALCAST 1013086, plus the other parts 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

6 Motor Mount parts are listed for the 2018 Toyota 4RUNNER, from SKP, DEA / MARMON RIDE CONTROL, ANCHOR and 3 other brands. SKP SKM9599 carries the "Popular" badge.

Economy: 1 part, from SKP. A representative part number is SKP SKM9599.

The Standard Replacement section: 5 options from DEA / MARMON RIDE CONTROL, ANCHOR, BECK/ARNLEY and 2 other brands. DEA / MARMON RIDE CONTROL A4260 is listed in this group.

Listed part numbers: SKP SKM9599, DEA / MARMON RIDE CONTROL A4260 and ANCHOR 9599, plus the other parts above.

This table covers the Motor Mount kits. Read more

ANCHOR supplies both parts for the 2018 Toyota 4RUNNER.

Listed part numbers: ANCHOR 300146 and ANCHOR 300145.

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

30 Oil parts are listed for the 2018 Toyota 4RUNNER, from VALVOLINE, LIQUI MOLY, MOBIL and 2 other brands. LIQUI MOLY 22044 carries the "Popular" badge. They are grouped as Full Synthetic and High Mileage (>75,000 Miles), with Full Synthetic the largest group at 23 parts from LIQUI MOLY, VALVOLINE, MOBIL and 2 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 4RUNNER, from ACKOJA and NISSENS.

Listed part numbers: ACKOJA A70600017 and NISSENS 91365.

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: AJUSA 01126100.

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

3 Oil Cooler Line parts are listed for the 2018 Toyota 4RUNNER, from SUNSONG and DORMAN.

This group includes DORMAN 625519, SUNSONG 5806016 and SUNSONG 5801461.

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

5 Oil Drain Plug parts are listed for the 2018 Toyota 4RUNNER, from DORMAN, AGS, BECK/ARNLEY and 1 other brand. DORMAN 090038 carries the "Popular" badge.

This group includes DORMAN 090038, AGS ODP00011 and BECK/ARNLEY 0160116 and the remaining 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 4RUNNER come from 6 brands — DORMAN, MAHLE / CLEVITE, APEX and 3 other brands. The "Popular" part is DORMAN 095156.

Part numbers include DORMAN 095156, MAHLE / CLEVITE 2051 and APEX ADP1902, among others listed above.

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

4 Oil Filler Cap parts are listed for the 2018 Toyota 4RUNNER, from CALORSTAT, GATES, MOTORAD and 1 other brand.

This group includes CALORSTAT OC2312, GATES 31285 and MOTORAD MO155 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

19 Oil Filter parts are listed for the 2018 Toyota 4RUNNER, from FRAM, VARIOUS MFR, WIX and 12 other brands. MOBIL M1C256A carries the "Popular" badge.

Economy: 5 parts, from CHAMP / LUBER-FINER, FRAM, FVP and 2 other brands. A representative part number is CHAMP / LUBER-FINER P968.

In the High Performance / Heavy Duty grade, MOBIL, WIX and FRAM 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 MOBIL M1C256A.

The Standard Replacement section: 11 options from BOSCH, WIX, ACDELCO and 8 other brands. BOSCH 3981 is listed in this group.

This table covers the Oil Filter Adapter Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

This group shows a single part: MAHLE / CLEVITE B33348.

This table covers the Oil Filter covers. Read more

7 Oil Filter Cover parts for the 2018 Toyota 4RUNNER come from 6 brands — MOTORAD, DORMAN, SKP and 3 other brands. The "Popular" part is DORMAN 917016.

This group includes DORMAN 917016, SKP SK917016 and ACKOJA A700770 and the remaining parts above.

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

7 Oil Pan parts for the 2018 Toyota 4RUNNER come from 7 brands — AUTOTECNICA, DORMAN, LILAND GLOBAL and 4 other brands.

This group includes AUTOTECNICA TY1416309, DORMAN 264344 and LILAND GLOBAL ITOP32A and the remaining parts above.

This table covers the gaskets between the oil pan and the block. 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 Pan Gasket parts are listed for the 2018 Toyota 4RUNNER, from VICTOR REINZ, FEL-PRO, APEX and 2 other brands. FEL-PRO OS30752 carries the "Popular" badge.

This group includes FEL-PRO OS30752, VICTOR REINZ 703141410 and APEX AOP877 and the remaining parts above.

This table covers the Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit. Read more

4 Oil Pump parts are listed for the 2018 Toyota 4RUNNER, from SKP, MELLING and TOPLINE.

Economy: 2 parts, from SKP. A representative part number is SKP SKK529.

The Standard Replacement section: 1 option from MELLING. MELLING M529 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Listed part numbers: SKP SKK529, SKP SKM529 and MELLING M529, plus the other parts above.

This table covers the Oil Pump repair kits. Read more

This group shows a single part: MELLING K529.

This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo. Read more

3 Piston parts for the 2018 Toyota 4RUNNER come from 3 brands — ENGINETECH, MAHLE / CLEVITE and TOPLINE.

In the Premium grade, ENGINETECH and MAHLE / CLEVITE supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is ENGINETECH P11256.

Standard Replacement: 1 part, from TOPLINE. A representative part number is TOPLINE PATO47B.

Part numbers include ENGINETECH P11256, MAHLE / CLEVITE 2243894 and TOPLINE PATO47B.

This table covers the Piston Pin bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

One part is listed for the 2018 Toyota 4RUNNER — TOPLINE PBD34.

This table covers the rings that seal each piston to the cylinder wall. Read more

5 Piston Ring parts for the 2018 Toyota 4RUNNER come from 4 brands — HASTINGS MANUFACTURING, ENGINETECH, SEALED POWER and 1 other brand. The "Popular" part is ENGINETECH S94126.

Premium: 2 parts, from ENGINETECH and SEALED POWER. A representative part number is ENGINETECH S94126.

Standard Replacement: 3 parts, from HASTINGS MANUFACTURING and TOPLINE. A representative part number is HASTINGS MANUFACTURING 2C5151.

This group includes ENGINETECH S94126, SEALED POWER E1014KC and HASTINGS MANUFACTURING 2C5151 and the remaining parts above.

This table covers the rocker arms that transfer cam motion to the valves. Read more

One part is listed for the 2018 Toyota 4RUNNER — MELLING MR906.

This table covers the Thrust washers. Read more

4 Thrust Washer parts are listed for the 2018 Toyota 4RUNNER, from KING ENGINE BEARINGS, ENGINETECH and MAHLE / CLEVITE.

Listed part numbers: ENGINETECH TW1027, KING ENGINE BEARINGS TW2030AM and KING ENGINE BEARINGS TW2024AM, plus the other parts above.

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

7 Timing Chain parts for the 2018 Toyota 4RUNNER come from 4 brands — MELLING, CLOYES, PREFERRED COMPONENTS INC and 1 other brand. The "Popular" part is AISIN ETCT007.

Part numbers include AISIN ETCT007, MELLING 1026 and CLOYES 94216, among others listed above.

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

9 Timing Chain & Component Kit parts are listed for the 2018 Toyota 4RUNNER, from PREFERRED COMPONENTS INC, CLOYES, MELLING and 3 other brands. CLOYES 90924S carries the "Popular" badge.

Economy: 3 parts, from PREFERRED COMPONENTS INC and GATES. A representative part number is GATES CHK131.

The Standard Replacement section: 6 options from CLOYES, MELLING, ENGINETECH and 1 other brand. CLOYES 90924S is listed in this group.

Listed part numbers: CLOYES 90924S, GATES CHK131 and PREFERRED COMPONENTS INC TS22178, plus the other parts above.

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

9 Timing Chain Guide / Damper parts for the 2018 Toyota 4RUNNER come from 3 brands — MELLING, CLOYES and PREFERRED COMPONENTS INC. The "Popular" part is MELLING BG5971.

Listed part numbers: MELLING BG5971, MELLING BG5970 and CLOYES 95971, 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

9 Timing Chain Tensioner parts are listed for the 2018 Toyota 4RUNNER, from MELLING, CLOYES and PREFERRED COMPONENTS INC. MELLING BT5077 carries the "Popular" badge.

Part numbers include MELLING BT5077, MELLING BT5078 and CLOYES 95579, among others listed above.

This table covers the Timing covers. Read more

This group shows a single part: AISIN TCT086.

This table covers the seals at the Timing Cover. 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

2 Timing Cover Seal parts are listed for the 2018 Toyota 4RUNNER, from SKF and WJB / INMOTION PARTS.

Part numbers include SKF 16540A and WJB / INMOTION PARTS WS16540A.

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

4 Timing Crank Sprocket parts are listed for the 2018 Toyota 4RUNNER, from CLOYES, FVP, MELLING and 1 other brand.

Listed part numbers: CLOYES S941 and MELLING S1261, plus the other parts above.

This table covers the Timing Idler sprockets. Read more

4 Timing Idler Sprocket parts for the 2018 Toyota 4RUNNER come from 4 brands — CLOYES, FVP, MELLING and 1 other brand.

This group includes CLOYES S942T and MELLING S1290 and the remaining parts 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

7 Valve Cover Gasket parts are listed for the 2018 Toyota 4RUNNER, from BECK/ARNLEY, VICTOR REINZ, APEX and 2 other brands. APEX AVC886S carries the "Popular" badge.

This group includes APEX AVC886S, FEL-PRO VS50826R and BECK/ARNLEY 0361892 and the remaining parts above.

This table covers the Valve Cover grommets. Read more

One part is listed for the 2018 Toyota 4RUNNER — BECK/ARNLEY 0396605.

This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering. Read more

6 Valve Guide parts are listed for the 2018 Toyota 4RUNNER, from SBI, ENGINETECH and TOPLINE. SBI 1403135 carries the "Popular" badge.

This group includes SBI 1403135, SBI 1403134 and ENGINETECH GD3181 and the remaining parts above.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

3 Valve Lifter parts are listed for the 2018 Toyota 4RUNNER, from AJUSA, SEALED POWER and TOPLINE.

Listed part numbers: AJUSA 85010900, SEALED POWER HT2307 and TOPLINE A2319.