2021 Acura Ilx 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

One part is listed for the 2021 Acura Ilx — TOPLINE RBH53.

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

2 Conversion / Lower Gasket Set parts are listed for the 2021 Acura Ilx, from AJUSA and TOPLINE.

This group includes AJUSA 54328000 and TOPLINE CBSH53.

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

2 Crankshaft Main Bearing parts for the 2021 Acura Ilx come from TOPLINE.

Listed part numbers: TOPLINE TWH36 and TOPLINE MBH53.

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

This group shows a single part: SKF 99313.

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

4 Crankshaft Seal parts for the 2021 Acura Ilx come from 3 brands — AJUSA, FEL-PRO and SKF.

Listed part numbers: AJUSA 15090800, AJUSA 15097100 and FEL-PRO BS40535, plus the other parts above.

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

4 Cylinder Head Bolt parts are listed for the 2021 Acura Ilx, from AJUSA, BECK/ARNLEY, FEL-PRO and 1 other brand.

Part numbers include AJUSA 81041700, BECK/ARNLEY 0161066 and FEL-PRO ES72284, among others listed above.

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

3 Cylinder Head Gasket parts are listed for the 2021 Acura Ilx, from AJUSA, APEX and MAHLE / CLEVITE.

Part numbers include AJUSA 10270700, APEX AHG180 and MAHLE / CLEVITE 55386.

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

2 Cylinder Head Gasket Set parts are listed for the 2021 Acura Ilx, from AJUSA and TOPLINE.

Part numbers include AJUSA 52631600 and TOPLINE HSH53.

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

2 Engine Kit Gasket Set parts are listed for the 2021 Acura Ilx, from AJUSA and TOPLINE.

Part numbers include AJUSA 50561800 and TOPLINE CGSH53.

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

This group shows a single part: TOPLINE EVH53.

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

One part is listed for the 2021 Acura Ilx — STANDARD MOTOR PRODUCTS GDF101.

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

One part is listed for the 2021 Acura Ilx — DORMAN 594766.

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

4 Intake Manifold Gasket parts are listed for the 2021 Acura Ilx, from AJUSA, ELRING and FEL-PRO.

Part numbers include AJUSA 13340100, AJUSA 13355100 and ELRING 068630, 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

This group shows a single part: TOPLINE IVH53.

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

This group shows a single part: DEA / MARMON RIDE CONTROL A65119.

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

37 Oil parts for the 2021 Acura Ilx come from 6 brands — LIQUI MOLY, VALVOLINE, MOBIL and 3 other brands. The "Popular" part is LIQUI MOLY 2208. Grades run from Full Synthetic through High Mileage (>75,000 Miles); Full Synthetic is the most populated section, led by LIQUI MOLY, VALVOLINE, PENTOSIN and 3 other brands.

This table covers the Oil Cooler Mounting kits. Read more

HAYDEN supplies both parts for the 2021 Acura Ilx.

Part numbers include HAYDEN 238 and HAYDEN 153.

This table covers the Oil Dipstick tubes. Read more

This group shows a single part: AUTOTECNICA HA1423352.

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

5 Oil Drain Plug parts for the 2021 Acura Ilx come from 4 brands — DORMAN, ACKOJA, REIN and 1 other brand. The "Popular" part is DORMAN 090053.

This group includes DORMAN 090053, ACKOJA A260253 and DORMAN 090033 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

5 Oil Drain Plug Gasket parts are listed for the 2021 Acura Ilx, from DORMAN, AJUSA, APEX and 2 other brands. DORMAN 095144 carries the "Popular" badge.

Listed part numbers: DORMAN 095144, AJUSA 22007400 and APEX ADP1909, plus the other parts above.

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

3 Oil Filler Cap parts for the 2021 Acura Ilx come from 3 brands — CALORSTAT, GATES and MOTORAD.

Part numbers include CALORSTAT OC2335, GATES 31284 and MOTORAD MO159.

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

18 Oil Filter parts for the 2021 Acura Ilx come from 14 brands — VARIOUS MFR, BOSCH, WIX and 11 other brands. The "Popular" part is MOBIL M1110A.

The Economy section lists 6 options from VARIOUS MFR, BOSCH, FRAM and 2 other brands — the catalog's value-priced group. BOSCH 72226WS 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 M1110A is listed in this group.

In the Standard Replacement grade, BOSCH, WIX, ACKOJA and 7 other brands supply 10 parts: built to original-equipment specification. A representative part number is BOSCH 3323.

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

2 Oil Pan parts are listed for the 2021 Acura Ilx, from SPECTRA PREMIUM and ULTRA-POWER.

Listed part numbers: SPECTRA PREMIUM HOP37A, plus the other 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

This group shows a single part: VICTOR REINZ 703141410.

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

This group shows a single part: ACKOJA A260274.

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

This group shows a single part: TOPLINE PBD34.

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

One part is listed for the 2021 Acura Ilx — TOPLINE RSH53.

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

One part is listed for the 2021 Acura Ilx — CLOYES C930.

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

This group shows a single part: TOPLINE CTKH53.

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

2 Timing Chain Tensioner parts for the 2021 Acura Ilx come from 2 brands — MELLING and PREFERRED COMPONENTS INC.

Part numbers include MELLING BT7057 and PREFERRED COMPONENTS INC T60310.

This table covers the gaskets that seal the Timing Cover. 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 TCS46306.

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

This group shows a single part: SKF 16896.

This table covers the Torque Strut mounts. 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

ANCHOR supplies both parts for the 2021 Acura Ilx.

Part numbers include ANCHOR 9487 and ANCHOR 9385.

This table covers the Valve covers. Read more

6 Valve Cover parts are listed for the 2021 Acura Ilx, from SKP, BECK/ARNLEY, ACKOJA and 2 other brands. BECK/ARNLEY 0360046 carries the "Popular" badge.

Listed part numbers: BECK/ARNLEY 0360046, ACKOJA A260449 and AUTOTECNICA HA1420330, plus the other 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

5 Valve Cover Gasket parts for the 2021 Acura Ilx come from 4 brands — MAHLE / CLEVITE, AJUSA, BECK/ARNLEY and 1 other brand. The "Popular" part is MAHLE / CLEVITE VS50916.

This group includes MAHLE / CLEVITE VS50916, AJUSA 56094100 and BECK/ARNLEY 0362089 and the remaining parts above.

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

2 Valve Guide parts for the 2021 Acura Ilx come from TOPLINE.

Part numbers include TOPLINE VGH43 and TOPLINE EVGH53.

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

One part is listed for the 2021 Acura Ilx — MELLING VS2503.

This table covers the Valve Spring retainers. Read more

One part is listed for the 2021 Acura Ilx — MELLING VSR731.

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

3 Valve Spring Retainer Keeper parts are listed for the 2021 Acura Ilx, from MELLING, QUALCAST and SBI.

Part numbers include MELLING VL1060, QUALCAST 345008 and SBI 1211060.

This table covers the seals on each valve stem that control oil into the guides. 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

7 Valve Stem Seal parts for the 2021 Acura Ilx come from 6 brands — SBI, FEL-PRO, MAHLE / CLEVITE and 3 other brands. The "Popular" part is FEL-PRO SS702831.

Listed part numbers: FEL-PRO SS702831, MAHLE / CLEVITE SS45626 and AJUSA 57030200, plus the other parts above.

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

8 Variable Valve Timing (VVT) Solenoid / Actuator parts for the 2021 Acura Ilx come from 7 brands — CLOYES, HOLSTEIN, ROSTRA and 4 other brands. The "Popular" part is ACKOJA A260230.

The Economy section: 3 options from HOLSTEIN, ROSTRA and WELLS. HOLSTEIN 2VTS0138 is listed in this group.

Standard Replacement: 5 parts, from CLOYES, ACKOJA, STANDARD MOTOR PRODUCTS and 1 other brand. A representative part number is ACKOJA A260230.

Part numbers include ACKOJA A260230, HOLSTEIN 2VTS0138 and ROSTRA 790129, among others listed above.

This table covers the Variable Valve Timing (VVT) Solenoid filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

4 Variable Valve Timing (VVT) Solenoid Filter parts for the 2021 Acura Ilx come from 3 brands — AJUSA, BECK/ARNLEY and MAHLE / CLEVITE.

Part numbers include AJUSA 00976700C, AJUSA 00976400C and BECK/ARNLEY 0396628, among others listed above.

This table covers the seals at the Variable Valve Timing (VVT) Solenoid Gasket. 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 2021 Acura Ilx — AJUSA 00976400.

This table covers the cam phaser sprockets used by the variable-valve-timing system. Read more

This group shows a single part: ACKOJA A260298.

This table covers the Variable Valve Timing (VVT) Sprocket bolts. Read more

One part is listed for the 2021 Acura Ilx — CLOYES VCB132.