2018 Acura RLX Engine Parts

This table covers the seals at each camshaft end. 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

6 Camshaft Seal parts are listed for the 2018 Acura RLX, from FEL-PRO, SKF, AJUSA and 3 other brands. FEL-PRO TCS46025 carries the "Popular" badge.

Listed part numbers: FEL-PRO TCS46025, SKF 15701 and AJUSA 15064200, plus the other parts above.

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

This group shows a single part: TOPLINE RBH52.

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 Acura RLX come from 5 brands — FEL-PRO, AJUSA, APEX and 2 other brands. The "Popular" part is FEL-PRO CS26265.

Listed part numbers: FEL-PRO CS26265, AJUSA 54253700 and APEX ACS1055, 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

TOPLINE supplies both parts for the 2018 Acura RLX.

Listed part numbers: TOPLINE TWH37 and TOPLINE MBH52.

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

One part is listed for the 2018 Acura RLX — 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

10 Crankshaft Seal parts are listed for the 2018 Acura RLX, from VICTOR REINZ, AJUSA, APEX and 4 other brands. FEL-PRO BS40685 carries the "Popular" badge.

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

5 Cylinder Head Bolt parts for the 2018 Acura RLX come from 5 brands — FEL-PRO, AJUSA, APEX and 2 other brands. The "Popular" part is FEL-PRO ES713291.

This group includes FEL-PRO ES713291, AJUSA 81067500 and APEX AHB155 and the remaining parts 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

7 Cylinder Head Gasket parts for the 2018 Acura RLX come from 4 brands — MAHLE / CLEVITE, APEX, ULTRA-POWER and 1 other brand. The "Popular" part is MAHLE / CLEVITE 55339.

Listed part numbers: MAHLE / CLEVITE 55339, MAHLE / CLEVITE 55340 and APEX AHG176L, plus the other parts above.

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

3 Cylinder Head Gasket Set parts for the 2018 Acura RLX come from 3 brands — AJUSA, MAHLE / CLEVITE and TOPLINE.

Part numbers include AJUSA 52632000, MAHLE / CLEVITE HS55339 and TOPLINE HSH52A.

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

One part is listed for the 2018 Acura RLX — KAT'S HEATERS 28500.

This table covers the Engine Cover grommets. Read more

One part is listed for the 2018 Acura RLX — DORMAN 49932.

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 for the 2018 Acura RLX come from 2 brands — AJUSA and TOPLINE.

Part numbers include AJUSA 50561900 and TOPLINE CGSH52A.

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

7 Exhaust Valve parts are listed for the 2018 Acura RLX, from MELLING, ITM ENGINE COMPONENTS, MAHLE / CLEVITE and 3 other brands. ITM ENGINE COMPONENTS RX9599 carries the "Popular" badge.

Part numbers include ITM ENGINE COMPONENTS RX9599, MELLING V0779 and MAHLE / CLEVITE 2114674, among others listed 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 Acura RLX come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: STANDARD MOTOR PRODUCTS GDF503 and WELLS 5T5002.

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

2 Harmonic Balancer parts for the 2018 Acura RLX come from 2 brands — ATP and DAYCO.

Listed part numbers: ATP 102367 and DAYCO PB1713N.

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

6 Intake Manifold Gasket parts for the 2018 Acura RLX come from 3 brands — APEX, MAHLE / CLEVITE and BECK/ARNLEY. The "Popular" part is MAHLE / CLEVITE MS20320.

This group includes MAHLE / CLEVITE MS20320, MAHLE / CLEVITE MS20316 and APEX AMS1762 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

5 Intake Valve parts are listed for the 2018 Acura RLX, from MELLING, MAHLE / CLEVITE, QUALCAST and 2 other brands. MELLING V0336 carries the "Popular" badge.

Part numbers include MELLING V0336, MAHLE / CLEVITE 2114615 and QUALCAST 1013336, 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

11 Motor Mount parts are listed for the 2018 Acura RLX, from DEA / MARMON RIDE CONTROL, ANCHOR, PIONEER and 3 other brands. SKP SKM9737 carries the "Popular" badge.

In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SKM9737.

The Standard Replacement section lists 10 options from DEA / MARMON RIDE CONTROL, ANCHOR, PIONEER and 2 other brands — built to original-equipment specification. ANCHOR 9737 is listed in this group.

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 are listed for the 2018 Acura RLX, from LIQUI MOLY, VALVOLINE, MOBIL and 3 other brands. LIQUI MOLY 2208 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, PENTOSIN and 3 other brands.

This table covers the Oil Cooler Mounting kits. Read more

2 Oil Cooler Mounting Kit parts for the 2018 Acura RLX come from HAYDEN.

Listed part numbers: HAYDEN 238 and HAYDEN 153.

This table covers the Oil Dipstick tubes. Read more

One part is listed for the 2018 Acura RLX — DORMAN 917387.

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

5 Oil Drain Plug parts are listed for the 2018 Acura RLX, from DORMAN, REIN and SKP. DORMAN 090053 carries the "Popular" badge.

Part numbers include DORMAN 090053, DORMAN 090033 and DORMAN 092020, among others listed 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 for the 2018 Acura RLX come from 5 brands — DORMAN, AJUSA, APEX and 2 other brands. The "Popular" part is DORMAN 095144.

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

4 Oil Filler Cap parts are listed for the 2018 Acura RLX, from CALORSTAT, DORMAN, GATES and 1 other brand.

Listed part numbers: CALORSTAT OC2335, DORMAN 80985 and GATES 31284, plus the other parts above.

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

17 Oil Filter parts are listed for the 2018 Acura RLX, from VARIOUS MFR, BOSCH, WIX and 10 other brands. WIX 57356XP carries the "Popular" badge.

Economy: 5 parts, from VARIOUS MFR, BOSCH, FVP and 1 other brand. A representative part number is BOSCH 72226WS.

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 57356XP.

The Standard Replacement section: 10 options from BOSCH, DENSO, WIX and 7 other brands. BOSCH 3323 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

2 Oil Filter Adapter Gasket / O-Ring parts for the 2018 Acura RLX come from 2 brands — FEL-PRO and MAHLE / CLEVITE.

Part numbers include FEL-PRO ES74047 and MAHLE / CLEVITE B33360.

This table covers the Oil Filter Support tubes. Read more

This group shows a single part: AUTOTECNICA HA1416938.

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

3 Oil Pan parts for the 2018 Acura RLX come from 3 brands — DORMAN, SKP and SPECTRA PREMIUM.

Part numbers include DORMAN 264380, SKP SK264380 and SPECTRA PREMIUM HOP20A.

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

2 Oil Pan Gasket parts are listed for the 2018 Acura RLX, from FEL-PRO and VICTOR REINZ.

Part numbers include FEL-PRO OS30954T and VICTOR REINZ 703141410.

This table covers the seals at the Oil Pressure Sender / Switch. 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 Oil Pressure Sender / Switch Seal parts are listed for the 2018 Acura RLX, from FEL-PRO and JAPANESE OE.

Part numbers include FEL-PRO 73196 and JAPANESE OE 91319PAAA01.

This table covers the gaskets that seal the Oil Pump. 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 01130500.

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

2 Piston parts for the 2018 Acura RLX come from 2 brands — MAHLE / CLEVITE and TOPLINE.

In the Premium grade, MAHLE / CLEVITE supplies 1 part: a step above OE specification in materials, tolerances or warranty terms. A representative part number is MAHLE / CLEVITE 2244044.

Standard Replacement: 1 part, from TOPLINE. A representative part number is TOPLINE PAH52A.

Part numbers include MAHLE / CLEVITE 2244044 and TOPLINE PAH52A.

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

3 Piston Ring parts for the 2018 Acura RLX come from 3 brands — ENGINETECH, SEALED POWER and TOPLINE.

Premium: 2 parts, from ENGINETECH and SEALED POWER. A representative part number is ENGINETECH S89416.

Standard Replacement: 1 part, from TOPLINE. A representative part number is TOPLINE RSH52A.

Listed part numbers: ENGINETECH S89416, SEALED POWER E985KC and TOPLINE RSH52A.

This table covers the Timing belts. Typical signs include squeal on cold start, cracked ribs, or glazing. Spin the tensioner and idlers by hand while the belt is off. Read more

6 Timing Belt parts for the 2018 Acura RLX come from 6 brands — CLOYES, BANDO, GATES and 3 other brands. The "Popular" part is BANDO TB329.

The Economy section: 1 option from CLOYES. CLOYES B329 is listed in this group.

Standard Replacement: 5 parts, from BANDO, GATES, ACDELCO and 2 other brands. A representative part number is BANDO TB329.

Listed part numbers: BANDO TB329, CLOYES B329 and GATES T329, plus the other parts above.

This table covers the Timing Belt & component kits. Read more

9 Timing Belt & Component Kit parts are listed for the 2018 Acura RLX, from AISIN, GATES, GMB and 3 other brands. AISIN TKH002KR carries the "Popular" badge.

Economy: 1 part, from CLOYES. A representative part number is CLOYES BK329A.

The Standard Replacement section: 8 options from AISIN, GATES, GMB and 2 other brands. AISIN TKH002KR is listed in this group.

Part numbers include AISIN TKH002KR, CLOYES BK329A and AISIN TKH002, among others listed above.

This table covers the Timing Belt pulleys. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

One part is listed for the 2018 Acura RLX — CLOYES 95508.

This table covers the Timing Belt 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

11 Timing Belt Tensioner parts are listed for the 2018 Acura RLX, from GMB, GATES, AISIN and 6 other brands. AISIN BTH001 carries the "Popular" badge.

This table covers the Timing Cover Dust Seal sets. Read more

One part is listed for the 2018 Acura RLX — MAHLE / CLEVITE JV5273.

This table covers the wear sleeves used to restore a Timing Cover seal surface. Read more

One part is listed for the 2018 Acura RLX — SKF 99169.

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

One part is listed for the 2018 Acura RLX — SKF 16473.

This table covers the Timing idlers. Typical signs include a chirp that follows engine speed, or an idler that feels rough or has play. Replace a noisy idler with the belt — the labor is already paid for. Read more

7 Timing Idler parts are listed for the 2018 Acura RLX, from DORMAN, GMB, CLOYES and 4 other brands. DORMAN 15011 carries the "Popular" badge.

Part numbers include DORMAN 15011, GMB 4359730 and CLOYES 95509, among others listed 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

11 Valve Cover Gasket parts are listed for the 2018 Acura RLX, from APEX, BECK/ARNLEY, MAHLE / CLEVITE and 2 other brands. APEX AVC176S carries the "Popular" badge.

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

5 Valve Guide parts are listed for the 2018 Acura RLX, from SBI, TOPLINE and QUALCAST. SBI 1408157 carries the "Popular" badge.

Part numbers include SBI 1408157, QUALCAST 308157 and SBI 1408158, among others listed 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

2 Valve Spring parts for the 2018 Acura RLX come from MELLING.

Listed part numbers: MELLING VS2501 and MELLING VS2502.

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

2 Valve Spring Retainer Keeper parts for the 2018 Acura RLX come from 2 brands — QUALCAST and SBI.

This group includes 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 are listed for the 2018 Acura RLX, from SBI, FEL-PRO, MAHLE / CLEVITE and 3 other brands. FEL-PRO SS702832 carries the "Popular" badge.

This group includes FEL-PRO SS702832, MAHLE / CLEVITE SS45626 and APEX AVS1028 and the remaining 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 are listed for the 2018 Acura RLX, from HOLSTEIN, DORMAN, ULTRA-POWER and 4 other brands. DORMAN 918075 carries the "Popular" badge.

Economy: 7 parts, from HOLSTEIN, DORMAN, ULTRA-POWER and 3 other brands. A representative part number is DORMAN 918075.

The Standard Replacement section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS VVT238 is listed in this group.

Part numbers include DORMAN 918075 and GATES VVS303, among others listed above.