2012 Nissan Sentra Engine Parts

This table covers the Balance Shaft bearings. 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 Balance Shaft Bearing parts for the 2012 Nissan Sentra come from 2 brands — ENGINETECH and TOPLINE.

Listed part numbers: ENGINETECH BS1042 and TOPLINE ISBD42.

This table covers the chains that drive the balance shafts. Read more

10 Balance Shaft Chain parts are listed for the 2012 Nissan Sentra, from MELLING, PREFERRED COMPONENTS INC, S.A. GEAR and 3 other brands. CLOYES C902 carries the "Popular" badge.

The Chain Only section lists 6 options from S.A. GEAR, CLOYES, MELLING and 2 other brands — grouped under the catalog's "Chain Only" designation — the notes column spells out what sets them apart. CLOYES C902 is listed in this group.

In the Kit grade, MELLING and ENGINETECH supply 3 parts: grouped under the catalog's "Kit" designation — the notes column spells out what sets them apart. A representative part number is ENGINETECH TS765.

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

This table covers the guides that keep the balance-shaft chain on its path. Read more

5 Balance Shaft Chain Guide parts are listed for the 2012 Nissan Sentra, from MELLING, CLOYES, INA and 2 other brands. MELLING BG7017 carries the "Popular" badge.

This group includes MELLING BG7017, CLOYES 95616 and INA ZG95616 and the remaining parts above.

This table covers the Balance Shaft Chain 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

5 Balance Shaft Chain Tensioner parts for the 2012 Nissan Sentra come from 4 brands — PREFERRED COMPONENTS INC, CLOYES, FVP and 1 other brand.

This group includes CLOYES 95606 and MELLING BT7013 and the remaining parts above.

This table covers the Balance Shaft sprockets. Read more

4 Balance Shaft Sprocket parts are listed for the 2012 Nissan Sentra, from INA, MELLING, PREFERRED COMPONENTS INC and 1 other brand. 3 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: INA ZSS945, MELLING S945 and PREFERRED COMPONENTS INC G56320C, plus the other parts above.

This table covers the camshafts that open the valves. Read more

One part is listed for the 2012 Nissan Sentra — TOPLINE CAMD42AI.

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

2 Connecting Rod parts are listed for the 2012 Nissan Sentra, from ENGINETECH and TOPLINE.

Part numbers include ENGINETECH ECR117 and TOPLINE CRD42.

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

11 Connecting Rod Bearing parts are listed for the 2012 Nissan Sentra, from MAHLE / CLEVITE, ENGINETECH, ITM ENGINE COMPONENTS and 2 other brands. ENGINETECH BB1049 carries the "Popular" badge.

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

12 Conversion / Lower Gasket Set parts are listed for the 2012 Nissan Sentra, from FEL-PRO, MAHLE / CLEVITE, APEX and 5 other brands. ENGINETECH NI25CSA carries the "Popular" badge.

This table covers the crankshafts that turn piston motion into rotation. Read more

2 Crankshaft parts are listed for the 2012 Nissan Sentra, from CRANKSHAFT REBUILDERS and ENGINETECH.

In the Economy grade, CRANKSHAFT REBUILDERS supplies 1 part: the catalog's value-priced group. A representative part number is CRANKSHAFT REBUILDERS 31270.

The Standard Replacement section lists 1 option from ENGINETECH — built to original-equipment specification. ENGINETECH 835100 is listed in this group.

Listed part numbers: CRANKSHAFT REBUILDERS 31270 and ENGINETECH 835100.

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

11 Crankshaft Main Bearing parts for the 2012 Nissan Sentra come from 5 brands — TOPLINE, ENGINETECH, MAHLE / CLEVITE and 2 other brands. The "Popular" part is ENGINETECH BC1038.

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

3 Crankshaft Repair Sleeve parts for the 2012 Nissan Sentra come from 3 brands — NATIONAL, SCHAEFFLER and WJB / INMOTION PARTS. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include NATIONAL 99181, SCHAEFFLER SR3501 and WJB / INMOTION PARTS WS99181.

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

35 Crankshaft Seal parts for the 2012 Nissan Sentra come from 13 brands — FEL-PRO, APEX, VICTOR REINZ and 10 other brands. The "Popular" part is AJUSA 15045100. A list this long means Crankshaft Seal applications vary by configuration — the notes carry the qualifiers.

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

16 Cylinder Head Bolt parts are listed for the 2012 Nissan Sentra, from FEL-PRO, APEX, AJUSA and 7 other brands. APEX AHB556 carries the "Popular" badge.

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

12 Cylinder Head Gasket parts are listed for the 2012 Nissan Sentra, from APEX, FEL-PRO, MAHLE / CLEVITE and 4 other brands. APEX AHG556 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

22 Cylinder Head Gasket Set parts are listed for the 2012 Nissan Sentra, from ENGINETECH, FEL-PRO, VICTOR REINZ and 7 other brands. APEX AHS5056 carries the "Popular" badge.

This table covers the Cylinder Head Spacer shims. Read more

2 Cylinder Head Spacer Shim parts are listed for the 2012 Nissan Sentra, from ENGINETECH and SBI.

This group includes ENGINETECH CHS1054 and SBI 2302139.

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

3 Engine Block Heater parts for the 2012 Nissan Sentra come from KAT'S HEATERS.

Listed part numbers: KAT'S HEATERS 28400, KAT'S HEATERS 11412 and KAT'S HEATERS 28500.

This table covers the Engine covers. Read more

3 Engine Cover parts are listed for the 2012 Nissan Sentra, from TECHPRO and VARIOUS MFR. 2 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: TECHPRO NI1228133 and TECHPRO NI1228109, plus the other 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

9 Engine Kit Gasket Set parts are listed for the 2012 Nissan Sentra, from ELRING, ITM ENGINE COMPONENTS, TOPLINE and 3 other brands. ENGINETECH NI25K2 carries the "Popular" badge.

Listed part numbers: ENGINETECH NI25K2, AJUSA 50283200 and ELRING 587300, 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

7 Exhaust Valve parts for the 2012 Nissan Sentra come from 4 brands — QUALCAST, SBI, TOPLINE and 1 other brand.

This group includes ENGINETECH EM4455, QUALCAST 103087 and QUALCAST 1013080 and the remaining parts above.

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

9 Harmonic Balancer parts are listed for the 2012 Nissan Sentra, from ATP, DAYCO, DORMAN and 3 other brands. ULTRA-POWER 594374 carries the "Popular" badge.

Economy: 1 part, from SKP. A representative part number is SKP SK594374.

The Standard Replacement section: 4 options from ULTRA-POWER, ATP, DAYCO and 1 other brand. ULTRA-POWER 594374 is listed in this group.

4 ungrouped parts are not assigned to a grade, with the same engine-level match.

Listed part numbers: ULTRA-POWER 594374, SKP SK594374 and ATP 102405, plus the other parts above.

This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

2 Intake Manifold parts for the 2012 Nissan Sentra come from 2 brands — LARES and SKP.

Part numbers include LARES 33950 and SKP SK615008.

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

15 Intake Manifold Gasket parts are listed for the 2012 Nissan Sentra, from BECK/ARNLEY, FEL-PRO, MAHLE / CLEVITE and 6 other brands. BECK/ARNLEY 0376178 carries the "Popular" badge.

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

7 Intake Plenum Gasket parts for the 2012 Nissan Sentra come from 7 brands — FEL-PRO, MAHLE / CLEVITE, AJUSA and 4 other brands. The "Popular" part is FEL-PRO MS97150.

Part numbers include FEL-PRO MS97150, MAHLE / CLEVITE MS19404 and AJUSA 01290100, among others listed above.

This table covers the gaskets that seal the Intake to Exhaust. 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: ELRING 351520.

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

8 Intake Valve parts for the 2012 Nissan Sentra come from 5 brands — QUALCAST, SBI, TOPLINE and 2 other brands.

Listed part numbers: ENGINETECH IM4454, MAHLE / CLEVITE 2114576 and QUALCAST 103086, 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

12 Motor Mount parts for the 2012 Nissan Sentra come from 6 brands — PIONEER, SKP, DEA / MARMON RIDE CONTROL and 3 other brands. The "Popular" part is SKP SKM9582. 1 part fits every engine; the other 11 are engine-specific.

The Economy section: 2 options from SKP. SKP SKM9582 is listed in this group.

Standard Replacement: 10 parts, from PIONEER, DEA / MARMON RIDE CONTROL, BECK/ARNLEY and 2 other brands. A representative part number is ANCHOR 9856.

This table covers the Motor Mount kits. Read more

4 Motor Mount Kit parts for the 2012 Nissan Sentra come from ANCHOR.

Listed part numbers: ANCHOR 301118, ANCHOR 301117 and ANCHOR 300206, plus the other parts above.