2012 Isuzu NPR Engine Parts

This table covers the Camshaft 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

5 Camshaft Bearing parts for the 2012 Isuzu NPR come from 3 brands — DURA-BOND, ENGINE PRO and KING ENGINE BEARINGS. The "Popular" part is DURA-BOND CH25.

This group includes DURA-BOND CH25, DURA-BOND CHP25 and DURA-BOND CHP25T and the remaining parts above.

This table covers the Camshaft Retainer / Thrust plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

ENGINETECH supplies both parts for the 2012 Isuzu NPR.

Listed part numbers: ENGINETECH CR6437 and ENGINETECH CR9016.

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

This group shows a single part: ENGINETECH ECR326.

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

13 Connecting Rod Bearing parts for the 2012 Isuzu NPR come from 2 brands — KING ENGINE BEARINGS and ENGINETECH. The "Popular" part is ENGINETECH BB253J.

The High Performance section lists 6 options from KING ENGINE BEARINGS — engineered beyond original-equipment specification. KING ENGINE BEARINGS CR807HPND is listed in this group.

In the Standard Replacement grade, KING ENGINE BEARINGS and ENGINETECH supply 5 parts: built to original-equipment specification. A representative part number is ENGINETECH BB253J.

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

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 are listed for the 2012 Isuzu NPR, from KING ENGINE BEARINGS and ENGINETECH. KING ENGINE BEARINGS MB5013XP carries the "Popular" badge.

High Performance: 6 parts, from KING ENGINE BEARINGS. A representative part number is KING ENGINE BEARINGS MB5013XP.

The Standard Replacement section: 5 options from KING ENGINE BEARINGS and ENGINETECH. ENGINETECH BC409J is listed in this group.

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

2 Crankshaft Repair Sleeve parts are listed for the 2012 Isuzu NPR, from NATIONAL and WJB / INMOTION PARTS.

Part numbers include NATIONAL 99210 and WJB / INMOTION PARTS WS99210.

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

11 Crankshaft Seal parts are listed for the 2012 Isuzu NPR, from ACDELCO, NATIONAL, ENGINETECH and 3 other brands. ACDELCO 100470 carries the "Popular" badge.

This table covers the Crankshaft Seal covers. Read more

2 Crankshaft Seal Cover parts for the 2012 Isuzu NPR come from 2 brands — DORMAN and SKP.

Part numbers include DORMAN 635518 and SKP SK635518.

This table covers the Crankshaft Seal Cover tools. This is a service tool, not a wear part — match the application in the notes. Read more

This group shows a single part: DORMAN 635000.

This table covers the cylinder heads that close the top of the block. Read more

2 Cylinder Head parts are listed for the 2012 Isuzu NPR, from CYLINDER HEAD EXPRESS and ENGINETECH.

Part numbers include CYLINDER HEAD EXPRESS CI530B and ENGINETECH CH1079R.

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

2 Cylinder Head Bolt parts for the 2012 Isuzu NPR come from SBI.

Listed part numbers: SBI 2201103 and SBI 2201123.

This table covers the Cylinder Head Spacer shims. Read more

2 Cylinder Head Spacer Shim parts for the 2012 Isuzu NPR come from 2 brands — ENGINETECH and SBI.

This group includes ENGINETECH CHS1068 and SBI 2302187.

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

6 Exhaust Valve parts are listed for the 2012 Isuzu NPR, from SBI, ENGINE PRO and QUALCAST. SBI 01935 carries the "Popular" badge.

Part numbers include SBI 01935, ENGINE PRO 0113042 and QUALCAST 103201, among others listed above.

This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

4 Expansion Plug parts for the 2012 Isuzu NPR come from 2 brands — ENGINETECH and MELLING.

Part numbers include ENGINETECH PK827, ENGINETECH PK293B and MELLING MPE900BR, among others listed above.

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

5 Harmonic Balancer parts for the 2012 Isuzu NPR come from 5 brands — SKP, DORMAN, ATP and 2 other brands. The "Popular" part is DORMAN 594209.

The Economy section lists 1 option from SKP — the catalog's value-priced group. SKP SK594209 is listed in this group.

Standard Replacement: 4 parts, from DORMAN, ATP, PIONEER and 1 other brand. A representative part number is DORMAN 594209.

Listed part numbers: DORMAN 594209, SKP SK594209 and ATP 102171, plus the other parts above.

This table covers the Harmonic Balancer bolts. Read more

One part is listed for the 2012 Isuzu NPR — DORMAN 917139.

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 2012 Isuzu NPR, from SBI and QUALCAST.

Part numbers include QUALCAST 103200, SBI 02000 and SBI 13040, among others listed above.

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

VALVOLINE supplies the 13 Oil parts for the 2012 Isuzu NPR. VALVOLINE VV955 carries the "Popular" badge.

In the Full Synthetic grade, VALVOLINE supplies 3 parts: full-synthetic oils. A representative part number is VALVOLINE VV955.

In the Heavy Duty / Diesel grade, VALVOLINE supplies 1 part: grouped under the catalog's "Heavy Duty / Diesel" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE 909778.

The High Mileage (>75,000 Miles) section lists 4 options from VALVOLINE — oils grouped for high-mileage engines. VALVOLINE VV1556 is listed in this group.

In the Synthetic Blend grade, VALVOLINE supplies 5 parts: synthetic-blend oils. A representative part number is VALVOLINE 909766.

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

8 Oil Drain Plug parts are listed for the 2012 Isuzu NPR, from DORMAN, AGS and SKP. DORMAN 090053 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 090175.

The Twist Drain section lists 1 option from DORMAN — grouped under the catalog's "Twist Drain" designation — the notes column spells out what sets them apart. DORMAN 092018 is listed in this group.

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

This group includes DORMAN 090053, DORMAN 090175 and DORMAN 092018 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

This group shows a single part: DORMAN 097135.

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

5 Oil Filler Cap parts are listed for the 2012 Isuzu NPR, from MOTORAD, DORMAN, GATES and 1 other brand.

Listed part numbers: DORMAN 42315, GATES 31103 and MOTORAD MO101, plus the other parts above.

This table covers the Oil Filler tubes. Read more

One part is listed for the 2012 Isuzu NPR — DORMAN 918121.

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

13 Oil Filter parts are listed for the 2012 Isuzu NPR, from VARIOUS MFR, ACDELCO, WIX and 6 other brands. ACDELCO PF48 carries the "Popular" badge.

Economy: 3 parts, from FAMOUS BRAND, PUROLATOR and VARIOUS MFR. A representative part number is FAMOUS BRAND 94007.

In the High Performance / Heavy Duty grade, MOBIL supplies 1 part: 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 M1113A.

The Standard Replacement section: 9 options from ACDELCO, WIX, HASTINGS / BALDWIN and 3 other brands. ACDELCO PF48 is listed in this group.

This table covers the Oil Galley plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

3 Oil Galley Plug parts are listed for the 2012 Isuzu NPR, from MELLING and ENGINETECH.

Part numbers include ENGINETECH OGV1, MELLING MOGP100 and MELLING MOGP100HP.

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

5 Oil Pan parts for the 2012 Isuzu NPR come from 4 brands — DORMAN, ULTRA-POWER, SKP and 1 other brand. The "Popular" part is ULTRA-POWER 264331.

Part numbers include ULTRA-POWER 264331 and DORMAN 264375, among others listed above.

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

ENGINETECH supplies the 3 Oil Pump parts for the 2012 Isuzu NPR.

Economy: 1 part, from ENGINETECH. A representative part number is ENGINETECH EPK152.

In the High Volume / Pressure grade, ENGINETECH supplies 1 part: grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. A representative part number is ENGINETECH EP295HV.

The Standard Replacement section: 1 option from ENGINETECH. ENGINETECH EP295 is listed in this group.

This group includes ENGINETECH EPK152, ENGINETECH EP295HV and ENGINETECH EP295.

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 2012 Isuzu NPR come from ENGINETECH.

This group includes ENGINETECH P5073 and ENGINETECH K50738P.

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

2 Piston Ring parts for the 2012 Isuzu NPR come from 2 brands — ENGINETECH and HASTINGS MANUFACTURING.

This group includes ENGINETECH S10248 and HASTINGS MANUFACTURING 2M5170.

This table covers the pushrods that transfer lifter motion to the rocker arms. Read more

3 Push Rod parts for the 2012 Isuzu NPR come from 3 brands — ENGINETECH, MELLING and SBI.

Part numbers include ENGINETECH EPR614, MELLING MPR614 and SBI 1901537.

This table covers the rocker arms that transfer cam motion to the valves. Read more

3 Rocker Arm parts are listed for the 2012 Isuzu NPR, from SBI and ENGINETECH.

This group includes ENGINETECH ER359, SBI 1801337 and SBI 1801336.

This table covers the Timing covers. Read more

This group shows a single part: DORMAN 635517.

This table covers the turbochargers that compress intake air. Read more

One part is listed for the 2012 Isuzu NPR — GPD 2513065.

This table covers the gaskets that seal the Turbocharger. 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 Turbocharger Gasket parts for the 2012 Isuzu NPR come from DORMAN.

Part numbers include DORMAN 6749029 and DORMAN 6749059.

This table covers the Valve covers. Read more

4 Valve Cover parts for the 2012 Isuzu NPR come from 4 brands — AUTOTECNICA, DORMAN, SKP and 1 other brand.

This group includes AUTOTECNICA GM1422901, DORMAN 264969 and SKP SK264969 and the remaining 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

One part is listed for the 2012 Isuzu NPR — ENGINETECH VCC293A.

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

One part is listed for the 2012 Isuzu NPR — SBI 1403053.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

SBI supplies both parts for the 2012 Isuzu NPR.

This group includes SBI VL115 and SBI VL559.

This table covers the guides that keep each lifter aligned. Read more

2 Valve Lifter Guide parts are listed for the 2012 Isuzu NPR, from ENGINETECH and SBI.

Part numbers include ENGINETECH EG365 and SBI VL559G.

This table covers the Valve seats. Read more

6 Valve Seat parts for the 2012 Isuzu NPR come from SBI. The "Popular" part is SBI SB162564.

This group includes SBI SB162564, SBI SB225050 and SBI SB1634E3 and the remaining parts 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 2012 Isuzu NPR come from 2 brands — ENGINETECH and SBI.

Listed part numbers: ENGINETECH ERV3598 and SBI 1601488.

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

This group shows a single part: SBI 1211085.

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

3 Valve Stem Seal parts are listed for the 2012 Isuzu NPR, from SBI and ENGINETECH.

Listed part numbers: ENGINETECH S900V, SBI 1221337 and SBI 1221338.

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

7 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2012 Isuzu NPR, from DORMAN, STANDARD MOTOR PRODUCTS, GATES and 2 other brands. DORMAN 916886XD carries the "Popular" badge.

Economy: 4 parts, from DORMAN, GATES and ROSTRA. A representative part number is DORMAN 916886XD.

The Standard Replacement section: 3 options from STANDARD MOTOR PRODUCTS and MELLING. MELLING VCTO1000 is listed in this group.

Part numbers include DORMAN 916886XD, DORMAN 916865 and GATES VVS273, among others listed above.

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

One part is listed for the 2012 Isuzu NPR — GATES VCP855.

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

This group shows a single part: CLOYES VTS156.