The 2001 Isuzu NPR has 15 electrical bulb & socket parts with verified fitment on this page — 8 part types and 5 brands, covering both the 4.8L L4 DIESEL Turbocharged and the 5.7L V8. Each part includes a manufacturer part number and application notes.
On the 2001 Isuzu NPR, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 10 parts of the 15 listed are Headlamp Socket (6 parts), Back Up / Reverse Lamp Bulb (2 parts) and License Plate Lamp Bulb (2 parts). The other 5 part types cover the remaining 5 parts.
The 2001 Isuzu NPR was sold with both the 4.8L L4 DIESEL Turbocharged and the 5.7L V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2001 Isuzu NPR electrical bulb & socket parts are PHILIPS (7 parts), STANDARD MOTOR PRODUCTS (4 parts) and PEAK (2 parts), plus 2 more brands. Quality grades include Extended Life and Standard Replacement.
2 parts on this 2001 Isuzu NPR page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO LS144 (Headlamp Socket) and STANDARD MOTOR PRODUCTS S526 (Headlamp Socket). Click any part number to see every vehicle that part fits.
Back Up / Reverse Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK Fits: 5.7L V8 | 1156 | 🇺🇸 US 🇨🇦 CA | Backup LightBulb | View on Amazon |
| PHILIPS Fits: 5.7L V8 | 1156LL | 🇺🇸 US 🇨🇦 CA | Longer Life | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
2 Back Up / Reverse Lamp Bulb parts are listed for the 2001 Isuzu NPR, from PEAK and PHILIPS.
This group includes PEAK 1156 and PHILIPS 1156LL.
Headlamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 5.7L V8 | H4656CV | 🇺🇸 US 🇨🇦 CA | Crystal Vision UltraBright White Xenon-Look | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
This group shows a single part: PHILIPS H4656CV.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 5.7L V8 | LS144 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L V8 | S526 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | HP4450 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | HP3950 | 🇺🇸 US 🇨🇦 CA | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | S529 | 🇺🇸 US 🇨🇦 CA | High Beam | View on Amazon |
| WELLS Fits: 5.7L V8 | 6S1004 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangularWiring Harness Length: 12.19 In | View on Amazon |
This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.
6 Headlamp Socket parts for the 2001 Isuzu NPR come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and WELLS. The "Popular" part is ACDELCO LS144.
Listed part numbers: ACDELCO LS144, STANDARD MOTOR PRODUCTS S526 and STANDARD MOTOR PRODUCTS HP4450, plus the other parts above.
Instrument Panel Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 5.7L V8 | 74 | 🇺🇸 US 🇨🇦 CA | Tilt Cabwith Bulb 74 | View on Amazon |
This table covers the replacement bulbs for the Instrument Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2001 Isuzu NPR — PHILIPS 74.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 5.7L V8 | 89LL | 🇺🇸 US 🇨🇦 CA | Longer Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 5.7L V8 | 89 | 🇺🇸 US 🇨🇦 CA | Fits Tilt Cabor NPR Base ModelHeavy Duty | View on Amazon |
This table covers the bulbs that light the license plate. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
PHILIPS supplies both parts for the 2001 Isuzu NPR.
The Extended Life section lists 1 option from PHILIPS — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. PHILIPS 89LL is listed in this group.
The Standard Replacement section lists 1 option from PHILIPS — built to original-equipment specification. PHILIPS 89 is listed in this group.
Part numbers include PHILIPS 89LL and PHILIPS 89.
Parking Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 5.7L V8 | 1157WLED | 🇺🇸 US 🇨🇦 CA | Ultinon LEDWhite | View on Amazon |
This table covers the bulbs in the parking lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
This group shows a single part: PHILIPS 1157WLED.
Side Marker Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK Fits: 5.7L V8 | 168 | 🇺🇸 US 🇨🇦 CA | Average Rated Life: 1500.0 HRWattage: 4.9 W | View on Amazon |
This table covers the bulbs in the side-marker lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2001 Isuzu NPR — PEAK 168.
Turn Signal Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 5.7L V8 | 1156LL | 🇺🇸 US 🇨🇦 CA | Longer Life | View on Amazon |
This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2001 Isuzu NPR — PHILIPS 1156LL.
Buying Electrical Bulb & Socket Parts for a 2001 Isuzu NPR
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Match the engine first. Every electrical bulb & socket 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 bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Headlamp Socket and Back Up / Reverse Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2001 Isuzu NPR?
Our catalog currently lists 15 electrical bulb & socket parts for the 2001 Isuzu NPR across 8 subcategories and 5 brands, covering both the 4.8L L4 DIESEL Turbocharged and the 5.7L V8. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2001 Isuzu NPR engines?
Yes. Every electrical bulb & socket 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 electrical bulb & socket problems on a 2001 Isuzu NPR?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
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 2001 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 2001 Isuzu NPR?
First match the engine — each row shows which engine(s) the part fits. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2001 Isuzu NPR
Electrical Bulb & Socket Parts for Other Isuzu NPR Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.