US 240SX S13/S14 Door Window Regulators and Motors by Equipment, Side and Build

Only the checked same-chassis, same-component and same-side chains above are asserted. S13 manual regulators, S13 power regulators, S13 motors, S14 regulators and S14 motors remain separate branches. No S13-to-S14, left-to-right, manual-to-power, regulator-to-motor, US-to-JDM/RHD or convertible interchange is asserted.

First identify S13 versus S14, US/LHD body, factory manual versus power equipment, physical side, build date and exact installed number. The checked S13 coupe/fastback catalog uses the same regulator branches, but every 1992-1994 convertible and all quarter-window mechanisms are excluded. The checked S14 US catalog lists power regulators and separate motors; do not invent an S14 manual branch. Verify connector/pigtail, regulator-only versus motor-only versus combined listing, glass guides/rollers/stoppers, mounting points and hardware. Diagnose circuit breaker, fuse, switches, auto-window amplifier, wiring, ground and connector before condemning the motor. Secure the glass, disconnect power and keep hands clear during service; align and test full travel without binding.

No fully verified new aftermarket complete regulator-and-motor family is promoted. Checked practical paths are remaining exact-number OEM/NOS and used OEM mechanisms. Pigtails, switches, relays, rollers and repair pieces are not complete regulators and must not be represented as such.

US/LHD 1989-1993 S13 coupe/fastback and 1995-1998 S14 coupe only; the S13 convertible and imported/RHD mechanisms are excluded. Match chassis, factory manual/power equipment, side, build and exact installed number. S13 manual regulators, S13 power regulators/motors and S14 power regulators/motors are separate buyer paths. Regulator-only does not mean motor included. Diagnose circuit breaker, switches, amplifier, wiring and glass guides before ordering. Secure the glass, disconnect power and keep hands clear during service; align and verify smooth full travel before driving.

Supersede reviewed 22 unique research sources for this guide. 5 also appear above as a seller or official action and are not repeated here; 17 additional citations follow.

Research last verified 2026-07-27.

1. Nissan Parts Deal — front door window regulatorOpen source
2. Nissan Parts Deal — front door window regulatorOpen source
3. Nissan Parts Deal — front door window regulatorOpen source
4. Nissan Parts Deal — front door window regulatorOpen source
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7. Nissan Parts Deal — oem nissan 240sx window motorOpen source
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14. Nicoclub — service manualOpen source
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16. Charm — Parts and LaborOpen source
17. Z1 Motorsports — oem 95 98 nissan 240sx s14 front door window regulator lh p 38406Open source