Front Right Window Regulator 8978681110 For ISUZU NPR NKR NQR ELF (1994–2007) — Power Window Version, Without Motor, Direct Fit Mechanism

The Front Right Window Regulator with OEM reference 8978681110 (factory number 8-97868111-RA) is a verified replacement power window mechanism for ISUZU NPR, NKR, NQR, and ELF commercial trucks built between 1994 and 2007. This unit is the mechanical lifting assembly that raises and lowers the door glass when driven by the electric window motor. It is the front right-hand (RH / passenger side) component, confirmed by multiple reference catalogs as "Front — Right side — Power window version — without motor."

The regulator is supplied without the electric motor ("livre sans moteur" / "without motor"), meaning the original motor must be transferred to the new mechanism during installation. This is a common and cost-effective repair approach when the motor is still functional but the regulator's cable, sector gear, or lifting arm has failed. The mechanism is manufactured from high-strength steel with an anti-corrosion finish, designed for the demanding duty cycles of commercial truck doors.

1. Front Right (RH / Passenger Side) — This is the front right door regulator. The left-hand counterpart uses 8978681120 / 8-97868112-0. Left and right regulators have mirror-image arm geometry and mounting configurations. They are not interchangeable.
2. Power Window Version (Without Motor) — This regulator is designed for power window (electric) applications and is supplied without the motor. The original electric motor must be transferred from the old regulator. If a manual crank regulator is required, a different reference applies. If a complete assembly with motor is required, the motor must be ordered separately.
3. Motor Transfer Required — The package contains the regulator mechanism only: no motor, no mounting bolts, no glass carrier hardware. Confirm that the original motor is serviceable before ordering. A failed motor cannot be transferred, and a replacement motor would need to be sourced separately.

• Position Verified: Front Right (RH / Passenger Side) — confirmed by reference catalog describing "Front — Right side" for the 8978681110 application family.
• Window Type Verified: Power window version — confirmed by reference data ("Power window version — without motor").
• Motor Exclusion Verified: Without motor — confirmed by multiple reference listings describing the unit as "livre sans moteur" and "without motor."
• Cross-Reference Density Verified: 8-97868-113-0, 8-97868-113-1, 8-97868-113-2, 8-97868-113-3, 8-97852-183-0, 8-97852-183-2, 8-97852-183-3 are consistently grouped as equivalent references for the 8978681110 front right power window regulator.
• Vehicle Coverage Verified: NPR77 (2003–2006), NPR85 (2006–2007), NKR77 (2003–2007), NKR85 (2006–2007) — confirmed by application data for the equivalent regulator family.
• Engine Association Verified: 4JB1 engine model — confirmed by factory reference data for the 8-97868111-RA factory number.
• Supply & MOQ Reference: MOQ 5 pcs; supply capacity 5,000 pcs/month; delivery 7–20 days — confirmed by factory-direct reference data.
• Aftermarket Reference: LMV1803 is a verified aftermarket reference for the equivalent front right power window regulator without motor.
• Motor Inclusion Ambiguity in Some Catalogs: Some aftermarket listings use "motorlu" (with motor) in the title, but this describes the vehicle's power window configuration, not the part's supply scope. The authoritative reference data consistently states without motor. Confirm at inquiry.

• Window does not move when the switch is pressed: The regulator cable, sector gear, or lifting arm has failed, preventing the motor from transferring motion to the glass — the most common failure mode on aging NPR/NKR power windows.
• Window moves slowly, binds, or tilts in the track: A worn or dry regulator track, a frayed cable, or a bent lifting arm increases resistance and causes the glass to cock as it travels.
• Grinding, clicking, or snapping noise from inside the door: A stripped sector gear or a broken cable strand produces audible mechanical noise during window operation.
• Window glass drops suddenly or will not stay up: A failed regulator arm or cable allows the glass to fall under its own weight, even with a functional motor.
• Motor runs but glass does not move: The motor is functioning but the regulator mechanism has disconnected from the glass carrier or the cable has failed.

• Right vs. Left is the first check: This is the front right (RH) regulator. The front left (LH) uses 8978681120 / 8-97868112-0. Do not interchange left and right.
• Power vs. manual is the second check: This is the power window mechanism. Manual crank regulators use a different reference and are not interchangeable with the power window mechanism.
• Motor is not included: The original electric motor must be transferred. Confirm that the motor is functional and that the motor-to-regulator interface matches the replacement mechanism.
• Vehicle coverage: Core applications include NPR77, NKR77, NPR85, and NKR85 from 2003–2007, with broader 1994–2007 N-Series coverage. Provide the VIN for final confirmation in mixed-fleet applications.

1. 1Confirm the required part first: Verify that the original regulator is power (electric) and is the front right unit. Confirm that the original motor is to be reused.
2. 2Remove the door trim panel: Use a plastic trim tool to release the perimeter clips. Disconnect the power window switch connector.
3. 3Remove the water shield / moisture barrier: Carefully peel back the plastic moisture barrier to access the regulator mechanism. Do not tear it — it must be reseated during reassembly.
4. 4Remove the glass: Lower the window until the glass-to-regulator attachment bolts are visible. Support the glass with suction cups or tape, then unbolt the glass carrier from the regulator arm.
5. 5Remove the motor (if reusing): Unbolt the motor from the old regulator. Note the motor orientation and connector position for transfer to the new regulator.
6. 6Remove the old regulator: Unbolt the regulator from the door inner panel. Guide the regulator arm out through the largest access opening.
7. 7Transfer the motor to the new regulator: Mount the motor onto the 8978681110 regulator. Verify the motor gear engages the regulator sector correctly before final tightening.
8. 8Install the new regulator: Position the regulator in the door and secure the mounting bolts. Do not fully tighten until the glass is aligned.
9. 9Reattach the glass: Bolt the glass carrier to the new regulator arm. Check glass alignment in the run channel before final tightening.
10. 10Test operation: Operate the window through its full travel range using the switch. Confirm smooth operation, correct glass tracking, and no binding or unusual noise.
11. 11Reseal the moisture barrier and reinstall trim: Reseat the moisture barrier with butyl tape or sealant. Reinstall the door trim panel and switch.
12. 12Road test: Drive the vehicle and listen for rattles or wind noise from the door. Verify that the window remains in position over bumps.

• Lubricate the window run channel every 1–2 years with silicone spray — a dry channel increases regulator load and accelerates wear.
• Inspect the regulator cable / sector gear if window operation becomes slow or noisy — early detection prevents complete failure.
• Avoid operating the window when the glass is frozen — forcing a frozen regulator can strip the sector gear or break the cable.
• Check the motor mounting bolts for tightness if the window rattles or operates intermittently.

• Standard packing: Neutral carton with protective wrapping; customer-branded packaging available on request.
• Package contents: 1 × Front Right Window Regulator Mechanism (without motor). Motor, mounting bolts, and glass carrier hardware are not included unless explicitly stated. Confirm exact package contents at inquiry.
• Set options: Regulator only (standard for this reference) / regulator + motor combination (subject to separate motor supply) — specify at inquiry.
• Suitable for: ISUZU NPR / NKR / NQR / ELF interior and window repair shops, light truck fleet maintenance departments, spare parts distributors, and export wholesalers.