Front Corner Lamp Assembly 8-94257411-2 (RH) & 8-94257412-2 (LH) For ISUZU NHR98 NKR NPR JMC 4JB1 — Yellow/White Lens, PC+ABS Housing, 1985–1994

The Front Corner Lamp Assembly covering OEM references 8-94257411-2 (Right / RH) and 8-94257412-2 (Left / LH) is a verified replacement lighting set for ISUZU NHR98, NKR, NPR, and JMC light trucks equipped with the 4JB1 diesel engine, covering the 1985–1994 production span. These are the front corner / turn signal lamp assemblies mounted adjacent to the headlamp, serving as the primary directional indicator and parking / side marker on each front corner of the vehicle.

The two part numbers form a complete left/right set: 8-94257411-2 (8942574112) is the Right-Hand (RH) assembly, and 8-94257412-2 (8942574122) is the Left-Hand (LH) assembly. Each unit is a complete lamp assembly with a Yellow + White lens combination, manufactured from PC + ABS plastic for impact resistance and dimensional stability. The lens is engineered to resist yellowing, hardening, and cracking under heat and UV exposure, while the housing sealing structure is designed to isolate dust and moisture from the socket area.

8-94257411-2 is the Right (RH) unit. 8-94257412-2 is the Left (LH) unit. They are mirror-image designs with different housing angles and lens patterns. They are not interchangeable side-to-side.

The lens is a dual-colour Yellow + White configuration, matching the original ISUZU NHR98 / NKR / JMC specification. This is not a single-colour clear or amber lens.

This listing covers the complete lamp assembly. The lens, housing, and socket provision are integral to the unit. Bulbs may or may not be included depending on the supply channel — confirm at inquiry.

• Position Verified (RH & LH): 8-94257411-2 = Right (RH) and 8-94257412-2 = Left (LH) — confirmed by factory-direct catalogs listing the pair as "R 8-94257411-2 L 8-94257412-2".
• Lens Colour Verified: Yellow + White (Yellow/White) — confirmed across factory-direct listings.
• Material Verified: PC + ABS — confirmed by factory specification for the lamp housing and lens assembly. Alternate listings describe the material as plastic (consistent with PC+ABS construction).
• Vehicle & Engine Coverage Verified: ISUZU NHR98, NKR, NPR, JMC — confirmed by multiple factory-direct listings. 4JB1 engine association confirmed for the NKR55 application (1985–1995).
• Year Range Verified: 1985–1994 — confirmed by factory-direct fitment data listing "85–94" and NKR55 coverage from 1985 to 1995.
• Warranty Verified: 1 year — confirmed by factory-direct listing.
• MOQ Verified: 10 pairs (L/R) or 10 pcs minimum — confirmed by factory-direct terms.
• Aftermarket Cross-Reference Verified: ABAKUS 213-1614R (Right position) is listed as a comparable aftermarket reference for 8-94257411-2. Additional cross-references for the LH assembly include 213-1614, 12-1022-LY, YMIZ-1614, JIZ3301.

• Turn signal does not illuminate: Bulb failure, corroded socket contacts, or a cracked internal reflector prevents the lamp from functioning — a direct roadworthiness and safety concern.
• Cracked or broken lens: Impact damage from road debris allows moisture ingress, corroding the reflector and socket.
• Moisture condensation inside the lens: A compromised lens-to-housing seal traps moisture, reducing light output and accelerating corrosion.
• Dim or discoloured light output: A degraded reflector or aged bulb produces insufficient brightness for legal compliance and safe signalling.
• Loose or detached housing: Broken mounting tabs or clips allow the lamp to vibrate or detach from the vehicle body.
• Yellow/White colour separation or fading: The dual-colour lens can fade or delaminate over time, affecting both appearance and light distribution.

• Left vs. Right is the first check: 8-94257411-2 is the RH assembly; 8-94257412-2 is the LH assembly. Do not interchange left and right.
• Lens colour is the second check: This is the Yellow + White lens combination. Do not substitute a single-colour lens.
• Bulb inclusion varies: The reference data does not confirm bulb inclusion. Confirm at inquiry — a lamp without a bulb cannot be returned to service until one is sourced.
• Vehicle coverage: Core applications are NHR98, NKR, NPR, and JMC from 1985–1994. Provide the VIN for final confirmation in mixed-fleet applications.

1. Confirm the required parts first: Verify that the replacement lamps are the correct RH (8-94257411-2) and LH (8-94257412-2) units. Compare the housing angle and connector shape to the original lamps.
2. Access the lamp: On the NHR98/NKR platform, the front corner lamp is typically accessed from behind the front bumper or by removing the headlamp assembly. Refer to the workshop manual for the specific access procedure.
3. Disconnect the electrical connector: Release the connector latch and unplug the lamp harness. Do not pull on the wires.
4. Remove the old lamp: Remove the mounting screws or release the retaining clips. Note the orientation of the housing and any rubber seals or gaskets.
5. Transfer or install the bulb: If the replacement lamp is supplied without a bulb, transfer the bulb from the original lamp (if serviceable) or install a new bulb of the correct specification.
6. Install the new lamp: Position the lamp into the body opening, ensuring the housing seats flush against the mounting surface. Install the screws or engage the clips.
7. Reconnect the electrical connector: Plug the harness connector in until the latch clicks. Verify that the seal is fully seated to prevent water ingress.
8. Test operation: Turn on the ignition and operate the turn signal and parking light functions. Confirm correct illumination and flash rate.
9. Check for moisture: After a short period of operation or a water spray test, inspect the lens for condensation — a properly sealed lamp should remain clear.

• Inspect the lamp lens at every service or every 20,000–30,000 km — check for cracks, moisture, and discolouration.
• Check the bulb and socket if the lamp fails to illuminate or flashes irregularly — corrosion in the socket is a common failure mode on older trucks.
• Clean the lens with a soft cloth and mild detergent — avoid abrasive cleaners that can scratch the polycarbonate surface.
• Replace the lamp if the lens is cracked or the housing seal has failed — moisture ingress will accelerate reflector degradation and socket corrosion.

• Standard packing: Neutral packaging or customer-branded packaging available. Confirm exact packaging configuration at inquiry.
• Package contents: 1 × Front Corner Lamp Assembly (RH or LH). Bulbs may or may not be included — confirm at inquiry. Mounting screws and wiring pigtail are typically not included.
• Set options: Single lamp (RH or LH) / RH + LH pair (8-94257411-2 + 8-94257412-2) — specify at inquiry.
• Supply capacity: Confirm current availability and lead time at inquiry.
• Suitable for: ISUZU NHR98 / NKR / NPR / JMC lighting repair shops, commercial truck fleet maintenance departments, spare parts distributors, and export wholesalers.