2021 Honda Clarity 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

This group shows a single part: TOPLINE RBH42.

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

This group shows a single part: AJUSA 54314700.

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 2021 Honda Clarity.

This group includes TOPLINE MBH54T and TOPLINE TWH54T.

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

AJUSA supplies both parts for the 2021 Honda Clarity.

Part numbers include AJUSA 15063900 and AJUSA 15115700.

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

3 Cylinder Head Bolt parts for the 2021 Honda Clarity come from 3 brands — AJUSA, MAHLE / CLEVITE and TOPLINE.

Part numbers include AJUSA 81034300, MAHLE / CLEVITE GS33708 and TOPLINE HBH42.

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

This group shows a single part: AJUSA 10255300.

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

This group shows a single part: AJUSA 52601400.

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

This group shows a single part: AJUSA 50546900.

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

2 Exhaust Valve parts are listed for the 2021 Honda Clarity, from QUALCAST and TOPLINE.

This group includes QUALCAST 1030539 and TOPLINE EVH42F.

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

This group shows a single part: AJUSA 13278700.

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

2 Intake Valve parts are listed for the 2021 Honda Clarity, from QUALCAST and TOPLINE.

Listed part numbers: QUALCAST 1030540 and TOPLINE IVH42F.

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

36 Oil parts are listed for the 2021 Honda Clarity, from LIQUI MOLY, VALVOLINE, MOBIL and 3 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 29 parts from LIQUI MOLY, VALVOLINE, PENTOSIN and 3 other brands.

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

5 Oil Drain Plug parts are listed for the 2021 Honda Clarity, from DORMAN, ACKOJA, REIN and 1 other brand. DORMAN 090053 carries the "Popular" badge.

Part numbers include DORMAN 090053, ACKOJA A260253 and DORMAN 090033, 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

4 Oil Drain Plug Gasket parts for the 2021 Honda Clarity come from 4 brands — AJUSA, DORMAN, FEL-PRO and 1 other brand.

Part numbers include AJUSA 22007400, DORMAN 095144 and FEL-PRO 73346, among others listed above.

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

3 Oil Filler Cap parts are listed for the 2021 Honda Clarity, from CALORSTAT, GATES and MOTORAD.

Listed part numbers: 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

16 Oil Filter parts are listed for the 2021 Honda Clarity, from BOSCH, VARIOUS MFR, WIX and 10 other brands. MOBIL M1110A carries the "Popular" badge.

In the Economy grade, BOSCH, FVP, PRO-TEC and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is BOSCH 72226WS.

In the High Performance / Heavy Duty grade, MOBIL and WIX 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 MOBIL M1110A.

The Standard Replacement section lists 10 options from BOSCH, WIX, ACKOJA and 7 other brands — built to original-equipment specification. BOSCH 3323 is listed in this group.

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 2021 Honda Clarity, from MAHLE / CLEVITE and VICTOR REINZ.

This group includes MAHLE / CLEVITE OS32396 and 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

2 Oil Pump parts are listed for the 2021 Honda Clarity, from MELLING and TOPLINE.

Listed part numbers: MELLING M571 and TOPLINE OPH42L.

This table covers the Timing Cam sprockets. Read more

One part is listed for the 2021 Honda Clarity — CLOYES S1066.

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

This group shows a single part: CLOYES C766.

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

This group shows a single part: CLOYES 95868.

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

One part is listed for the 2021 Honda Clarity — MAHLE / CLEVITE T33408.

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 2021 Honda Clarity — MAHLE / CLEVITE 67932.

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

One part is listed for the 2021 Honda Clarity — CLOYES S1067.

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

3 Torque Strut Mount parts for the 2021 Honda Clarity come from 3 brands — ANCHOR, PIONEER and WESTAR.

Listed part numbers: ANCHOR 10232, PIONEER 630232 and WESTAR EM7640.

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

2 Valve Cover Gasket parts are listed for the 2021 Honda Clarity, from AJUSA and BECK/ARNLEY.

Part numbers include AJUSA 11168100 and BECK/ARNLEY 0362081.

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

TOPLINE supplies both parts for the 2021 Honda Clarity.

Part numbers include TOPLINE IVGH21 and TOPLINE EVGH42F.

This table covers the Valve Spring retainers. Read more

This group shows a single part: MELLING VSR729.

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

This group shows a single part: MELLING VL1060.

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

5 Valve Stem Seal parts are listed for the 2021 Honda Clarity, from MAHLE / CLEVITE, FEL-PRO, AJUSA and 1 other brand. FEL-PRO SS702831 carries the "Popular" badge.

Listed part numbers: FEL-PRO SS702831, AJUSA 57030200 and MAHLE / CLEVITE SS45627, 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

One part is listed for the 2021 Honda Clarity — WELLS 2T1281.

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

One part is listed for the 2021 Honda Clarity — STANDARD MOTOR PRODUCTS VVT475.