This page lists 36 engine parts for the 2005 Isuzu NPR, across 14 part types, covering both the 5.2L L4 DIESEL Turbocharged and the 6.0L V8. Every part shows its brand, manufacturer part number and fitment notes.
On the 2005 Isuzu NPR, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. 15 parts of the 36 listed are Oil (6 parts), Oil Drain Plug (5 parts) and Oil Filter (4 parts). The other 11 part types cover the remaining 21 parts.
The 2005 Isuzu NPR was sold with both the 5.2L L4 DIESEL Turbocharged and the 6.0L V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2005 Isuzu NPR engine parts are QUALCAST (10 parts), SBI (7 parts) and VALVOLINE (6 parts), plus 9 more brands. Quality grades include Economy, Standard Replacement and Conventional.
2 parts on this 2005 Isuzu NPR page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including VALVOLINE 773780 (Oil) and DORMAN 090053 (Oil Drain Plug). Click any part number to see every vehicle that part fits.
Cylinder Head
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINE PRO Fits: 5.2L L4 DIESEL Turbocharged | 910517 | 🇺🇸 US 🇨🇦 CA | BareDoes not include Valves, Cam, or Springs | View on Amazon |
This table covers the cylinder heads that close the top of the block.
One part is listed for the 2005 Isuzu NPR — ENGINE PRO 910517.
Cylinder Head Spacer Shim
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 2302166 | 🇺🇸 US 🇨🇦 CA | New HGT.- 4.6850Minimum Height-N/A | View on Amazon |
This table covers the Cylinder Head Spacer shims.
This group shows a single part: SBI 2302166.
Exhaust Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 1013122 | 🇺🇸 US 🇨🇦 CA | 1.456 Head DIA. 0.312 Stem. N-Series Trucks. (Mexico ELF 400-600). OEM # 8972098763 | View on Amazon |
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 1013464 | 🇺🇸 US 🇨🇦 CA | 1.456 Head DIA. 0.3120 Stem DIA. 5.520 OAL. OEM # 8981583761 | View on Amazon |
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 13122 | 🇺🇸 US 🇨🇦 CA | OEM # 89439588308972098762 | View on Amazon |
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.
3 Exhaust Valve parts are listed for the 2005 Isuzu NPR, from QUALCAST and SBI.
This group includes QUALCAST 1013122, QUALCAST 1013464 and SBI 13122.
Intake Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 1013121 | 🇺🇸 US 🇨🇦 CA | 1.457 Head DIA. 0.313 Stem. N-Series Trucks. (Mexico ELF 400-600). OEM # 8943958822 | View on Amazon |
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 1013463 | 🇺🇸 US 🇨🇦 CA | 1.457 Head DIA. 0.3130 Stem DIA. 5.530 OAL. OEM # 8980388700 | View on Amazon |
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 13121 | 🇺🇸 US 🇨🇦 CA | OEM # 89439588205.140 overall Length | View on Amazon |
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.
3 Intake Valve parts are listed for the 2005 Isuzu NPR, from QUALCAST and SBI.
Listed part numbers: QUALCAST 1013121, QUALCAST 1013463 and SBI 13121.
Oil
Summary: Notes list SAE 10W-30 and SAE 15W-40. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE.
Conventional
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 5.2L L4 DIESEL Turbocharged | 773780 | 🇺🇸 US 🇨🇦 CA | Premium Blue 8600 ES SAE 15W-401 Gallon | View on Amazon |
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 5.2L L4 DIESEL Turbocharged | 909772 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Full Synthetic SAE 15W-40 DIESEL1 Gallon | View on Amazon |
Heavy Duty / Diesel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 5.2L L4 DIESEL Turbocharged | 909778 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Conventional SAE 15W-40 DIESEL1 Gallon | View on Amazon |
Synthetic Blend
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 5.2L L4 DIESEL Turbocharged | 909766 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Synthetic Blend SAE 15W-40 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 5.2L L4 DIESEL Turbocharged | 909776 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Synthetic Blend SAE 10W-30 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 5.2L L4 DIESEL Turbocharged | 909782 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Synthetic Blend SAE 15W-40 DIESEL2.5 Gallon | View on Amazon |
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.
VALVOLINE supplies the 6 Oil parts for the 2005 Isuzu NPR. VALVOLINE 773780 carries the "Popular" badge.
In the Conventional grade, VALVOLINE supplies 1 part: grouped under the catalog's "Conventional" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE 773780.
In the Full Synthetic grade, VALVOLINE supplies 1 part: full-synthetic oils. A representative part number is VALVOLINE 909772.
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.
In the Synthetic Blend grade, VALVOLINE supplies 3 parts: synthetic-blend oils. A representative part number is VALVOLINE 909766.
Part numbers include VALVOLINE 773780, VALVOLINE 909772 and VALVOLINE 909778, among others listed above.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 5.2L L4 DIESEL Turbocharged | 090053 | 🇺🇸 US 🇨🇦 CA | MetalPilot Point | View on Amazon |
| AGS Fits: 5.2L L4 DIESEL Turbocharged | ODP00007 | 🇺🇸 US 🇨🇦 CA | M14x1.50 | View on Amazon |
| DORMAN Fits: 5.2L L4 DIESEL Turbocharged | 090075 | 🇺🇸 US 🇨🇦 CA | StandardM14-1.50 | View on Amazon |
| DORMAN Fits: 5.2L L4 DIESEL Turbocharged | 092020 | 🇺🇸 US 🇨🇦 CA | Thread Size: M14-1.50Twist Style | View on Amazon |
| SKP Fits: 5.2L L4 DIESEL Turbocharged | SK090053CD | 🇺🇸 US 🇨🇦 CA | Metal | View on Amazon |
This table covers the drain plugs in the oil pan.
5 Oil Drain Plug parts are listed for the 2005 Isuzu NPR, from DORMAN, AGS and SKP. DORMAN 090053 carries the "Popular" badge.
Part numbers include DORMAN 090053, AGS ODP00007 and DORMAN 090075, among others listed above.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 5.2L L4 DIESEL Turbocharged | 097135 | 🇺🇸 US 🇨🇦 CA | SizeM14, 9/16" | View on Amazon |
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.
This group shows a single part: DORMAN 097135.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMP / LUBER-FINER Fits: 5.2L L4 DIESEL Turbocharged | LFP5964 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
| VARIOUS MFR Fits: 5.2L L4 DIESEL Turbocharged | PG5495 | 🇺🇸 US 🇨🇦 CA | with OE# 8971482700 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Fits: 5.2L L4 DIESEL Turbocharged | LF507 | 🇺🇸 US 🇨🇦 CA | Fits NPR Base ModelDual-Flowor NPR-HD | View on Amazon |
| WIX Fits: 5.2L L4 DIESEL Turbocharged | 57521 | 🇺🇸 US 🇨🇦 CA | Spin-On Lube Filter | View on Amazon |
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.
4 Oil Filter parts are listed for the 2005 Isuzu NPR, from CHAMP / LUBER-FINER, VARIOUS MFR, HASTINGS / BALDWIN and 1 other brand.
In the Economy grade, CHAMP / LUBER-FINER and VARIOUS MFR supply 2 parts: the catalog's value-priced group. A representative part number is CHAMP / LUBER-FINER LFP5964.
The Standard Replacement section lists 2 options from HASTINGS / BALDWIN and WIX — built to original-equipment specification. HASTINGS / BALDWIN LF507 is listed in this group.
Part numbers include CHAMP / LUBER-FINER LFP5964, VARIOUS MFR PG5495 and HASTINGS / BALDWIN LF507, among others listed above.
Turbocharger
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 5.2L L4 DIESEL Turbocharged | 2511395 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the turbochargers that compress intake air.
One part is listed for the 2005 Isuzu NPR — GPD 2511395.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 5.2L L4 DIESEL Turbocharged | 2535067 | 🇺🇸 US 🇨🇦 CA | Only Fits Compatible Aftermarket Turbochargers | View on Amazon |
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.
This group shows a single part: GPD 2535067.
Valve Guide
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 303297 | 🇺🇸 US 🇨🇦 CA | 2.245 OAL. 0.316 I.D. 0.553 O.D. OEM # 8973767191 | View on Amazon |
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 303101 | 🇺🇸 US 🇨🇦 CA | 2.245 OAL. 0.3150 I.D. 0.5526 O.D. OEM # 8943907800 | View on Amazon |
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 1403101 | 🇺🇸 US 🇨🇦 CA | Intake and Exhaust0.3150 I.D. | View on Amazon |
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.
3 Valve Guide parts are listed for the 2005 Isuzu NPR, from QUALCAST and SBI.
This group includes QUALCAST 303297, QUALCAST 303101 and SBI 1403101.
Valve Seat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 2215021 | 🇺🇸 US 🇨🇦 CA | INSERT | View on Amazon |
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 2215022 | 🇺🇸 US 🇨🇦 CA | INSERT | View on Amazon |
This table covers the Valve seats.
2 Valve Seat parts for the 2005 Isuzu NPR come from QUALCAST.
Part numbers include QUALCAST 2215021 and QUALCAST 2215022.
Valve Spring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 1601570 | 🇺🇸 US 🇨🇦 CA | Intake2.386 Length | View on Amazon |
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.
This group shows a single part: SBI 1601570.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 3896245 | 🇺🇸 US 🇨🇦 CA | Viton Ring and Spring | View on Amazon |
| QUALCAST Fits: 5.2L L4 DIESEL Turbocharged | 38700255 | 🇺🇸 US 🇨🇦 CA | Viton Metal Clad. OEM # 8973767200 | View on Amazon |
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 1221413 | 🇺🇸 US 🇨🇦 CA | Intake and ExhaustViton Material | View on Amazon |
| SBI Fits: 5.2L L4 DIESEL Turbocharged | 1221137 | 🇺🇸 US 🇨🇦 CA | Intake and ExhaustViton Material | View on Amazon |
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.
4 Valve Stem Seal parts are listed for the 2005 Isuzu NPR, from QUALCAST and SBI.
This group includes QUALCAST 3896245, QUALCAST 38700255 and SBI 1221413 and the remaining parts above.
Buying Engine Parts for a 2005 Isuzu NPR
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Every engine part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil and Oil Drain Plug .
Frequently Asked Questions
How many engine parts fit the 2005 Isuzu NPR?
Our catalog currently lists 36 engine parts for the 2005 Isuzu NPR across 14 subcategories and 12 brands, covering both the 5.2L L4 DIESEL Turbocharged and the 6.0L V8. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2005 Isuzu NPR engines?
Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 2005 Isuzu NPR?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2005 Isuzu NPR?
Oil rows on this page include SAE 10W-30 and SAE 15W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2005 Isuzu NPR was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2005 Isuzu NPR?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2005 Isuzu NPR
Engine Parts for Other Isuzu NPR Years
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