US S13 240SX Fastback Factory Rear Hatches: Shell, Spoiler/Wiper Branch and Loaded-Contents Identification

The checked exact Nissan service-page links are 90100-40F30 and 90100-54F30 -> K0100-54F30; 90100-40F35 and 90100-54F31 -> K0100-54F31; 90100-40F36 and 90100-54F36 -> K0100-54F36; and 90100-40F37 and 90100-54F37 -> K0100-54F37. Checked stay links are 90450-40F25 -> 90450-54F25 for the ordinary branch and 90450-40F85 -> 90450-54F26 for the spoiler/heavier branch. Plain, wiper/luxury, spoiler and spoiler-plus-wiper branches remain equipment selections, not substitutions for one another. Glass, spoiler, hinge, stay and weatherstrip are attached or adjacent pieces, not hatch-shell supersessions.

Begin with both VINs and confirm US 1989-1993 Fastback body and original spoiler/rear-wiper equipment. Do not inherit 1989-1994 service or seller shorthand: official 1993 evidence includes the Fastback, while the checked 1994 US brochure/catalog trail is Convertible-only. Match the actual shell stamping, underside reinforcement, spoiler and wiper holes, hinge pads, latch area and stay mounts. A seller's back door, hatch, complete or loaded description does not prove inclusion of bonded glass, molding, defroster tabs/leads, spoiler, wiper motor/arm/washer parts, wiring/harness, interior trim, hinges, stays, latch, weatherstrip, bumpers, stops or fasteners; require a photographed contents sheet. Ordinary and spoiler-weight stays differ, and a weak or mismatched pair can drop the loaded hatch. Inspect seams, lower edge, glass channel, hinge pads and latch area for corrosion, folds, cracks, filler, welds, prior repair/paint, pin holes and transport damage. Support the hatch with qualified help and current Nissan procedures during removal, glass work and alignment; never work beneath an unsupported hatch or infer that new stays correct bent body mounting points.

A documented straight genuine used shell matched to the correct equipment branch is the principal replacement path because all four checked factory service-shell pages are discontinued. Composite/fiberglass/carbon hatch skins, Lexan/polycarbonate glazing, universal spoilers and gas-strut conversions are not factory supersessions and require their own material, reinforcement, hinge/latch, glazing, sealing, visibility, defroster/wiper, crashworthiness and road-use review. Replacement weatherstrip or stays do not repair a bent, cracked or rusted shell. Fresh paint, wrap or coating can conceal filler, heat, corrosion and repairs, so require pre-finish photographs and measurements.

US 1989-1993 Fastback only; 1994 US service/seller shorthand does not create a Fastback application. Match VIN, exact shell branch, spoiler/rear-wiper equipment, hole pattern, stay branch, condition and every included piece. Bare or complete does not prove glass, defroster, spoiler, wiper equipment, trim, hinges, stays, latch, weatherstrip or hardware. SCH-0004 separately owns hatch glass. Support the heavy hatch, inspect corrosion/repair and body points, and normalize pickup/freight and return terms before comparing prices.

Supersede reviewed 18 unique research sources for this guide. 3 also appear above as a seller or official action and are not repeated here; 15 additional citations follow.

Research last verified 2026-07-29.

1. Nissan Parts Deal — back door panel fittingOpen source
2. Nissan Parts Deal — back door panel fittingOpen source
3. Nissan Parts Deal — back door panel fittingOpen source
4. PartSouq — diagramOpen source
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12. Nissan Parts Deal — nissan back door k0100 54f31Open source
13. Nissan Parts Deal — nissan back door k0100 54f36Open source
14. Nissan Parts Deal — nissan door back k0100 54f37Open source
15. Offerup — 1f6613b1 de08 390a b314 5dcbb52c487eOpen source