Front Left Door Lock Assembly 8942710090 / 8-94271009-0 For ISUZU NHR NPR 4JB1 — Complete Lock Mechanism With Cylinder, Key & Actuator Interface, OEM-Spec

The Front Left Door Lock Assembly with OEM references 8942710090 / 8-94271009-0 (factory number 8-94271009-PT) is a verified replacement door latch and lock mechanism for the ISUZU NHR and NPR light truck platform equipped with the 4JB1 engine. This is the complete front left-hand (LH / driver side) door lock assembly — the integrated mechanical and electrical unit that secures the door in the closed position, interfaces with the interior and exterior handles, and provides locking and unlocking through both key operation and central locking signals.

The assembly serves as the primary locking component of the door system. It integrates the mechanical latch mechanism, the key cylinder interface, the interior handle connection, the exterior handle connection, the central locking actuator interface, and the door ajar / return signal provision to the body control module. This comprehensive integration makes it a complete bolt-on replacement for a failed or worn door lock, rather than a partial repair kit.

This is the front left door lock assembly. The right-hand (RH / passenger side) counterpart uses a different reference (e.g., 8-94271008-JL / 8-94271008-0). Left and right lock assemblies have mirror-image latch geometry and actuator interfaces. They are not interchangeable.

This listing covers the complete lock mechanism assembly. It includes the latch body, the internal locking mechanism, and the actuator interface. The key cylinder and key may or may not be included depending on the supply channel — confirm package contents at inquiry. This is not a partial repair kit or a lock cylinder alone.

The assembly is confirmed for the ISUZU 4JB1 engine application in the NHR and NPR truck family. While the NHR/NPR platform spans multiple engine variants, confirm the engine code and VIN before ordering, especially for fleet applications with mixed engine populations.

• VerifiedPosition: Front Left (LH / Driver Side) — confirmed by multiple independent listings describing the part as "KAPI KILIDI SOL" (Turkish: left door lock) and "FRONT DOOR LOCK LH" in application data.
• VerifiedComponent Scope: Complete door lock assembly — confirmed by the functional description covering the mechanical latch, electrical integration, power supply and signal interface, interior handle connection, exterior handle connection, central locking actuator interface, and door ajar / return signal provision.
• VerifiedVehicle & Engine Coverage: ISUZU NHR / NPR with 4JB1 engine — confirmed across factory-direct listings in Slovenian, Swedish, Slovak, Pakistani, and Thai language portals.
• VerifiedDimensions: 15 × 7 × 5 cm (actual size) — confirmed by factory-direct product specification.
• VerifiedWeight: 0.35 kg (net weight) — confirmed by independent supplier data.
• VerifiedFactory Number: 8-94271009-PT — confirmed as the factory / tooling reference for this lock assembly.
• VerifiedCross-Reference Density: 8942710090, 8-94271009-0, and 6205100A are consistently grouped as interchangeable or related references for the NHR/NPR front left door lock.
• VerifiedWarranty: 6-month quality guarantee — confirmed by factory-direct listing.
• VerifiedMOQ: 1 pc (independent supplier reference) — sample-friendly ordering available.
• VerifiedHS Code: 830120000 — confirmed by independent supplier data for the door lock classification.
• AttentionKey Cylinder and Key Inclusion NOT Uniformly Specified: Some supply channels include the key cylinder and key with the lock assembly, while others supply the lock mechanism only. Confirm the package contents at inquiry — do not assume key inclusion without explicit confirmation.

• Door does not latch or stay closed: The internal latch mechanism has worn or broken, preventing the door from securing in the closed position — a direct safety and security concern.
• Key does not turn or lock/unlock: The key cylinder or the internal locking mechanism has failed, preventing normal locking and unlocking operation.
• Central locking does not operate on one door: The actuator interface within the lock assembly has failed, so the central locking system cannot lock or unlock this door electrically.
• Door opens unexpectedly while driving: A worn striker or latch mechanism allows the door to release under vibration or load — an immediate safety hazard.
• Excessive play or noise from the door lock area: Worn internal components produce rattles, clunks, or looseness in the door latch mechanism.
• Interior or exterior handle does not release the latch: The handle-to-latch connection within the assembly has failed, preventing the door from opening from one or both handles.

• Left vs. Right is the first check: This is the front left (LH) lock assembly. The front right (RH) uses 8-94271008-JL / 8-94271008-0. Do not interchange left and right — the latch geometry and actuator interface are mirror-image designs.
• Complete assembly vs. lock cylinder: This is the complete lock mechanism assembly. If the customer only needs a lock cylinder or a repair kit, a different product scope applies. Confirm the required scope before ordering.
• Key inclusion: Key cylinder and key inclusion varies by supply channel. Confirm package contents at inquiry.
• Vehicle coverage: Core application is NHR and NPR with 4JB1. The NPR59 application is also confirmed for the LH lock reference. Provide the VIN for final confirmation in mixed-fleet applications.

1. 1Confirm the required part first: Verify that the replacement is the front left (LH) lock assembly and that the latch geometry and actuator interface match the original unit. Confirm whether the key cylinder and key are included.
2. 2Remove the door trim panel: Use a plastic trim removal tool to release the perimeter clips. Disconnect the window switch and door lock switch connectors.
3. 3Remove the water shield / moisture barrier: Carefully peel back the plastic moisture barrier to access the lock mechanism.
4. 4Disconnect the actuator and handle linkages: Unplug the central locking actuator connector. Disconnect the interior and exterior handle rods/linkages from the lock assembly. Note the linkage orientation for reassembly.
5. 5Remove the lock assembly: Unbolt or unscrew the lock assembly from the door shell. Guide the assembly out through the access opening.
6. 6Install the new assembly: Position the 8942710090 lock assembly in the door and secure the mounting fasteners. Do not fully tighten until the linkages are connected.
7. 7Reconnect the linkages and actuator: Reconnect the interior and exterior handle rods/linkages. Plug in the central locking actuator connector.
8. 8Test operation: Before reinstalling the trim panel, test the latch operation — close the door, verify that it latches securely, operate the interior and exterior handles, test the key lock/unlock function, and verify central locking operation.
9. 9Reinstall the moisture barrier and trim: Reseat the moisture barrier and reinstall the door trim panel.
10. 10Final verification: Close the door and confirm that it latches securely with no excessive play. Test all locking and unlocking functions from both inside and outside the vehicle.

• Lubricate the door latch mechanism and linkages every 1–2 years with a suitable white lithium grease to prevent wear and binding.
• Inspect the door striker alignment at every service — a misaligned striker accelerates latch wear and can cause door rattles.
• Test central locking operation periodically — if one door fails to lock/unlock electrically, inspect the actuator interface before the entire assembly fails.
• Avoid slamming the door — excessive force stresses the latch mechanism and striker over time.

• Standard packing: Protective carton with internal cushioning. Neutral or customer-branded packaging available.
• Package contents: 1 × Front Left Door Lock Assembly. Key cylinder and key inclusion varies by supply channel — confirm at inquiry. Mounting hardware and linkage rods are not included unless explicitly stated.
• Set options: Lock assembly only / lock assembly with key cylinder and key (where available) — specify at inquiry.
• Delivery time: Confirm current lead time at inquiry; reference data indicates standard factory-direct dispatch.
• Suitable for: ISUZU NHR / NPR door and lock repair shops, light truck fleet maintenance departments, collision repair centers, spare parts distributors, and export wholesalers.