2015 Toyota Sienna Engine Parts

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

One part is listed for the 2015 Toyota Sienna — TOPLINE CRTO49.

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 are listed for the 2015 Toyota Sienna, from KING ENGINE BEARINGS, ENGINETECH, MAHLE / CLEVITE and 1 other brand. ENGINETECH BB1035 carries the "Popular" badge.

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

6 Conversion / Lower Gasket Set parts are listed for the 2015 Toyota Sienna, from APEX, FEL-PRO, AJUSA and 3 other brands. APEX ACS8073 carries the "Popular" badge.

This group includes APEX ACS8073, FEL-PRO CS26321 and AJUSA 54157300 and the remaining 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 for the 2015 Toyota Sienna come from 4 brands — TOPLINE, ENGINETECH, ITM ENGINE COMPONENTS and 1 other brand. The "Popular" part is ENGINETECH BC1032.

This group includes ENGINETECH BC1032, ITM ENGINE COMPONENTS 7M9700 and MAHLE / CLEVITE MS2357A and the remaining parts above.

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

3 Crankshaft Repair Sleeve parts for the 2015 Toyota Sienna come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.

Part numbers include BCA NS99166, NATIONAL 99166 and WJB / INMOTION PARTS WS99166.

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

21 Crankshaft Seal parts for the 2015 Toyota Sienna come from 10 brands — VICTOR REINZ, FEL-PRO, AJUSA and 7 other brands. The "Popular" part is AJUSA 15019600.

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

8 Cylinder Head Bolt parts are listed for the 2015 Toyota Sienna, from VICTOR REINZ, ENGINETECH, FEL-PRO and 4 other brands. ENGINETECH HB264 carries the "Popular" badge.

Listed part numbers: ENGINETECH HB264, FEL-PRO ES72249 and APEX AHB871, plus the other parts above.

This table covers the Cylinder Head Bolt washers. Read more

One part is listed for the 2015 Toyota Sienna — 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 are listed for the 2015 Toyota Sienna, from FEL-PRO, AJUSA, APEX and 4 other brands. FEL-PRO 26321PT carries the "Popular" badge.

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 are listed for the 2015 Toyota Sienna, from ENGINETECH, FEL-PRO, AJUSA and 7 other brands. ENGINETECH TO35HSA carries the "Popular" badge.

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

2 Engine Block Heater parts for the 2015 Toyota Sienna come from KAT'S HEATERS.

Part numbers include KAT'S HEATERS 11813 and KAT'S HEATERS 28813.

This table covers the Engine covers. Read more

5 Engine Cover parts are listed for the 2015 Toyota Sienna, from TECHPRO and VARIOUS MFR. TECHPRO TO1228174 carries the "Popular" badge.

This group includes TECHPRO TO1228174, TECHPRO LX1228131 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

5 Engine Kit Gasket Set parts are listed for the 2015 Toyota Sienna, from ITM ENGINE COMPONENTS, AJUSA, ELRING and 2 other brands. ITM ENGINE COMPONENTS 0901635 carries the "Popular" badge.

Listed part numbers: ITM ENGINE COMPONENTS 0901635, AJUSA 50282800 and ELRING 631910, 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

4 Exhaust Valve parts for the 2015 Toyota Sienna come from 4 brands — ENGINETECH, MELLING, QUALCAST and 1 other brand.

Listed part numbers: ENGINETECH EM4457, MELLING V3087 and QUALCAST 1013087, plus the other parts above.

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

5 Harmonic Balancer parts are listed for the 2015 Toyota Sienna, from SKP, ULTRA-POWER, ATP and 2 other brands. ULTRA-POWER 594304 carries the "Popular" badge.

In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SK594304.

The Standard Replacement section lists 4 options from ULTRA-POWER, ATP, DAYCO and 1 other brand — built to original-equipment specification. ULTRA-POWER 594304 is listed in this group.

Listed part numbers: ULTRA-POWER 594304, SKP SK594304 and ATP 102254, plus the other 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

9 Intake Manifold Gasket parts are listed for the 2015 Toyota Sienna, from VICTOR REINZ, ELRING, APEX and 3 other brands. APEX AMS8731 carries the "Popular" badge.

Listed part numbers: APEX AMS8731, FEL-PRO MS96790 and BECK/ARNLEY 0376225, plus the other parts 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 for the 2015 Toyota Sienna come from 5 brands — FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. The "Popular" part is FEL-PRO MS96786.

Listed part numbers: FEL-PRO MS96786, APEX AMS8730 and BECK/ARNLEY 0374886, plus the other 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

4 Intake Valve parts for the 2015 Toyota Sienna come from 4 brands — ENGINETECH, MELLING, QUALCAST and 1 other brand.

Part numbers include ENGINETECH IM4456, MELLING V3086 and QUALCAST 1013086, 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

12 Motor Mount parts for the 2015 Toyota Sienna come from 6 brands — ANCHOR, DEA / MARMON RIDE CONTROL, WESTAR and 3 other brands. The "Popular" part is SKP SKM9238.

The Economy section: 1 option from SKP. SKP SKM9238 is listed in this group.

Standard Replacement: 11 parts, from ANCHOR, DEA / MARMON RIDE CONTROL, WESTAR and 2 other brands. A representative part number is ANCHOR 9591.

This table covers the Motor Mount kits. Read more

2 Motor Mount Kit parts for the 2015 Toyota Sienna come from ANCHOR.

Part numbers include ANCHOR 300430 and ANCHOR 300427.

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

29 Oil parts for the 2015 Toyota Sienna come from 5 brands — VALVOLINE, LIQUI MOLY, MOBIL and 2 other brands. The "Popular" part is LIQUI MOLY 22044. They are grouped as Full Synthetic and High Mileage (>75,000 Miles), with Full Synthetic the largest group at 22 parts from LIQUI MOLY, VALVOLINE, PENTOSIN 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 for the 2015 Toyota Sienna come from 2 brands — ACKOJA and NISSENS.

Listed part numbers: ACKOJA A70600015 and NISSENS 91371.

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

One part is listed for the 2015 Toyota Sienna — AJUSA 01126100.

This table covers the Oil Cooler Hose pipes. Read more

This group shows a single part: 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

5 Oil Cooler Line parts for the 2015 Toyota Sienna come from 4 brands — DORMAN, AUTOTECNICA, SKP and 1 other brand. The "Popular" part is DORMAN 625519.

Listed part numbers: DORMAN 625519, AUTOTECNICA TY1418804 and DORMAN 625022, plus the other parts above.

This table covers the seals at the Oil Cooler. 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 2015 Toyota Sienna — AJUSA 01184100.

This table covers the Oil Dipstick tubes. Read more

2 Oil Dipstick / Tube parts for the 2015 Toyota Sienna come from DORMAN.

Listed part numbers: 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

One part is listed for the 2015 Toyota Sienna — FEL-PRO 73668.

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

8 Oil Drain Plug parts for the 2015 Toyota Sienna come from 5 brands — DORMAN, ELRING, AGS and 2 other brands. The "Popular" part is DORMAN 090038.

This group includes DORMAN 090038, DORMAN 090049 and AGS ODP00011 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

8 Oil Drain Plug Gasket parts are listed for the 2015 Toyota Sienna, from DORMAN, MAHLE / CLEVITE, APEX and 5 other brands. DORMAN 095156 carries the "Popular" badge.

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

5 Oil Filler Cap parts for the 2015 Toyota Sienna come from 5 brands — DORMAN, CALORSTAT, GATES and 2 other brands. The "Popular" part is DORMAN 84111.

Listed part numbers: DORMAN 84111, CALORSTAT OC2312 and GATES 31285, plus the other 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

One part is listed for the 2015 Toyota Sienna — 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 for the 2015 Toyota Sienna come from 14 brands — VARIOUS MFR, WIX, PRO-TEC and 11 other brands. The "Popular" part is PRO-TEC PXL57047.

The Economy section: 6 options from PRO-TEC, BOSCH, FRAM and 3 other brands. PRO-TEC PXL57047 is listed in this group.

The High Performance / Heavy Duty section lists 2 options from WIX and MOBIL — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. WIX 57047XP is listed in this group.

Standard Replacement: 8 parts, from DENSO, WIX, ACDELCO and 5 other brands. A representative part number is DENSO 1503021.

This table covers the Oil Filter covers. Read more

6 Oil Filter Cover parts are listed for the 2015 Toyota Sienna, from MOTORAD, DORMAN, SKP and 2 other brands. DORMAN 917016 carries the "Popular" badge.

Listed part numbers: DORMAN 917016, SKP SK917016 and AUTOTECNICA TY1420831, plus the other parts above.

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

7 Oil Pan parts are listed for the 2015 Toyota Sienna, from DORMAN, SKP, ACKOJA and 4 other brands. DORMAN 264342 carries the "Popular" badge.

Part numbers include DORMAN 264342, SKP SK264342 and ACKOJA A700431, among others listed 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 for the 2015 Toyota Sienna come from 5 brands — VICTOR REINZ, FEL-PRO, APEX and 2 other brands. The "Popular" part is FEL-PRO OS30770.

This group includes FEL-PRO OS30770, VICTOR REINZ 703141410 and APEX AOP873 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

5 Oil Pump parts for the 2015 Toyota Sienna come from 5 brands — SKP, ENGINETECH, ITM ENGINE COMPONENTS and 2 other brands. The "Popular" part is SKP SKEP490.

The Economy section: 1 option from SKP. SKP SKEP490 is listed in this group.

Standard Replacement: 4 parts, from ENGINETECH, ITM ENGINE COMPONENTS, MELLING and 1 other brand. A representative part number is ENGINETECH EP490.

Listed part numbers: SKP SKEP490, ENGINETECH EP490 and ITM ENGINE COMPONENTS 0571560, plus the other parts above.

This table covers the O-rings that seal the oil-pump pickup tube. 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: FEL-PRO 73595.

This table covers the Oil Pump repair kits. Read more

One part is listed for the 2015 Toyota Sienna — MELLING K535.

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

4 Piston parts are listed for the 2015 Toyota Sienna, from ENGINETECH, ITM ENGINE COMPONENTS and TOPLINE.

The Premium section lists 2 options from ENGINETECH — a step above OE specification in materials, tolerances or warranty terms. ENGINETECH P4870 is listed in this group.

The Standard Replacement section: 2 options from ITM ENGINE COMPONENTS and TOPLINE. ITM ENGINE COMPONENTS RY7635 is listed in this group.

Listed part numbers: ENGINETECH P4870, ENGINETECH K48706P and ITM ENGINE COMPONENTS RY7635, plus the other parts above.

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

2 Piston Pin Bushing parts for the 2015 Toyota Sienna come from 2 brands — ENGINETECH and TOPLINE.

Part numbers include ENGINETECH EB0156 and TOPLINE PBD34.

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

5 Piston Ring parts are listed for the 2015 Toyota Sienna, from ENGINETECH, MAHLE / CLEVITE, HASTINGS MANUFACTURING and 2 other brands. ENGINETECH S94136 carries the "Popular" badge.

The Premium section: 2 options from ENGINETECH and MAHLE / CLEVITE. ENGINETECH S94136 is listed in this group.

The Standard Replacement section: 3 options from HASTINGS MANUFACTURING, ITM ENGINE COMPONENTS and TOPLINE. HASTINGS MANUFACTURING 2C4511 is listed in this group.

Listed part numbers: ENGINETECH S94136, MAHLE / CLEVITE 42214CP and HASTINGS MANUFACTURING 2C4511, plus the other parts above.

This table covers the Re-Ring kits. Read more

This group shows a single part: ENGINETECH RMTO35P.

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

2 Rocker Arm parts for the 2015 Toyota Sienna come from 2 brands — ENGINETECH and MELLING.

Part numbers include ENGINETECH ER0104 and MELLING MR906.

This table covers the Thrust washers. Read more

4 Thrust Washer parts for the 2015 Toyota Sienna come from 4 brands — ENGINETECH, ITM ENGINE COMPONENTS, KING ENGINE BEARINGS and 1 other brand.

This group includes ENGINETECH TW1032, ITM ENGINE COMPONENTS 1T9700 and KING ENGINE BEARINGS TW1036AM and the remaining parts above.

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

11 Timing Chain parts are listed for the 2015 Toyota Sienna, from MELLING, S.A. GEAR, AISIN and 3 other brands. MELLING 1026 carries the "Popular" badge.