2012 Nissan Pathfinder 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

12 Connecting Rod Bearing parts are listed for the 2012 Nissan Pathfinder, from KING ENGINE BEARINGS, MAHLE / CLEVITE, ENGINETECH and 3 other brands. ENGINETECH BB1019 carries the "Popular" badge.

In the High Performance grade, KING ENGINE BEARINGS supplies 2 parts: engineered beyond original-equipment specification. A representative part number is KING ENGINE BEARINGS CR8051XP.

The Standard Replacement section lists 4 options from MAHLE / CLEVITE, ENGINETECH and TOPLINE — built to original-equipment specification. ENGINETECH BB1019 is listed in this group.

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

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

13 Conversion / Lower Gasket Set parts are listed for the 2012 Nissan Pathfinder, from APEX, ENGINETECH, FEL-PRO and 5 other brands. APEX ACS5057 carries the "Popular" badge.

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

One part is listed for the 2012 Nissan Pathfinder — ENGINETECH 838500.

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

13 Crankshaft Main Bearing parts for the 2012 Nissan Pathfinder come from 6 brands — KING ENGINE BEARINGS, ENGINETECH, MAHLE / CLEVITE and 3 other brands. The "Popular" part is ENGINETECH BC1018.

The High Performance section: 2 options from KING ENGINE BEARINGS. KING ENGINE BEARINGS MB5770XPX is listed in this group.

Standard Replacement: 5 parts, from TOPLINE, ENGINETECH, MAHLE / CLEVITE and 1 other brand. A representative part number is ENGINETECH BC1018.

6 further parts sit outside the graded sections, with the same engine-level match.

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

7 Crankshaft Repair Sleeve parts for the 2012 Nissan Pathfinder come from 4 brands — NATIONAL, SCHAEFFLER, WJB / INMOTION PARTS and 1 other brand.

This group includes BCA NS99189, NATIONAL 99189 and NATIONAL 99181 and the remaining parts above.

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

27 Crankshaft Seal parts for the 2012 Nissan Pathfinder come from 13 brands — SCHAEFFLER, NATIONAL, WJB / INMOTION PARTS and 10 other brands. The "Popular" part is FEL-PRO BS40694. 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

15 Cylinder Head Bolt parts are listed for the 2012 Nissan Pathfinder, from AJUSA, APEX, BECK/ARNLEY and 6 other brands. AJUSA 81047800 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

32 Cylinder Head Gasket parts are listed for the 2012 Nissan Pathfinder, from APEX, FEL-PRO, AJUSA and 7 other brands. APEX AHG555L carries the "Popular" badge. The notes list position, dimensions and spec qualifiers wherever the manufacturer distinguishes between variants.

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

16 Cylinder Head Gasket Set parts are listed for the 2012 Nissan Pathfinder, from FEL-PRO, ENGINETECH, APEX and 6 other brands. ENGINETECH NI40HSA 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 2012 Nissan Pathfinder come from KAT'S HEATERS. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include KAT'S HEATERS 11412 and KAT'S HEATERS 28500.

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 Pathfinder, from FEL-PRO, ULTRA-POWER, AJUSA and 4 other brands. FEL-PRO 2603180 carries the "Popular" badge.

This group includes FEL-PRO 2603180, AJUSA 50273300 and ELRING 939640 and the remaining parts above.

This table covers the Engine rebuild kits. Read more

ENGINETECH supplies both parts for the 2012 Nissan Pathfinder.

Listed part numbers: ENGINETECH RCNI40P and ENGINETECH RCNI56P.

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 Pathfinder come from 6 brands — TOPLINE, SBI, ENGINETECH and 3 other brands. The "Popular" part is SBI 13238. 3 parts fit every engine; the other 4 are engine-specific.

Listed part numbers: SBI 13238, ENGINETECH EM1013 and ITM ENGINE COMPONENTS RX9613, 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 2012 Nissan Pathfinder, from ATP, DAYCO and DORMAN.

This group includes ATP 102414, ATP 102471 and DAYCO PB1664N and the remaining 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

14 Intake Manifold Gasket parts are listed for the 2012 Nissan Pathfinder, from VICTOR REINZ, BECK/ARNLEY, FEL-PRO and 5 other brands. BECK/ARNLEY 0376171 carries the "Popular" badge.

This table covers the Intake Manifold Runner Control Valve solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

4 Intake Manifold Runner Control Valve / Solenoid parts are listed for the 2012 Nissan Pathfinder, from DORMAN, STANDARD MOTOR PRODUCTS, ULTRA-POWER and 1 other brand.

Listed part numbers: DORMAN 911506 and STANDARD MOTOR PRODUCTS RCS103, 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 2012 Nissan Pathfinder come from 5 brands — FEL-PRO, AJUSA, APEX and 2 other brands. The "Popular" part is FEL-PRO MS96943.

Listed part numbers: FEL-PRO MS96943, AJUSA 01149900 and APEX AMS5551, 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

7 Intake Valve parts for the 2012 Nissan Pathfinder come from 6 brands — TOPLINE, ENGINETECH, SBI and 3 other brands. The "Popular" part is ENGINETECH IM1012. 5 parts fit every engine; the other 2 are engine-specific.

This group includes ENGINETECH IM1012, SBI 13237 and ITM ENGINE COMPONENTS RV9963 and the remaining 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

10 Motor Mount parts for the 2012 Nissan Pathfinder come from 6 brands — ANCHOR, BECK/ARNLEY, DEA / MARMON RIDE CONTROL and 3 other brands. The "Popular" part is SKP SKM9506.

The Economy section lists 1 option from SKP — the catalog's value-priced group. SKP SKM9506 is listed in this group.

Standard Replacement: 4 parts, from ANCHOR, BECK/ARNLEY, DEA / MARMON RIDE CONTROL and 1 other brand. A representative part number is ANCHOR 9506.

5 further parts sit outside the graded sections, with the same engine-level match.

This table covers the Motor Mount kits. Read more

8 Motor Mount Kit parts for the 2012 Nissan Pathfinder come from 2 brands — ANCHOR and WESTAR.

This group includes ANCHOR 300140, ANCHOR 300139 and ANCHOR 300141 and the remaining parts above.