BMW 3 Series E21 3D-printable parts

Replacement clip for BMW door-sill/entry trim panels. The creator explicitly lists E21, E30, E36, E39, E46, E81/E82/E88, F20, E85 and related applications and identifies genuine BMW clip 51471840960. Verify the receiving-hole and trim thickness before fitting.

Working replacement retaining clip for the manual window crank of a 1982 BMW E21 320i. The creator reports the reinforced full-base iteration stays installed; other E21 crank variants were not claimed. Print solid and verify positive crank retention before use.

Printable M-Technic-style shift-knob replica documented for BMW E21 and E30. The source shows a finished physical print and provides sanding and polishing instructions. Verify selector-shaft engagement and secure retention before driving; this is not represented as an original BMW component.

Replacement expanding nut for securing front trim, grille and valance pieces on the BMW E21. The creator physically fitted the part and recommends flexible, heat-resistant PETG at full infill. Confirm hole diameter, screw engagement and trim retention.

Adapter for fitting most 6.5-inch speakers at the factory 4×6 rear-shelf positions of a 1981 BMW E21 320i without cutting new holes. The creator reports successful physical fit and sound. Check magnet depth, shelf clearance, fastener security and wiring before installation.

Replacement upper outer plastic cover for BMW E21 Recaro seats. Mirror the geometry for the opposite side. BMWFans identifies 52101877057 as left and 52101877058 as right across E21 variants; verify seat type, side and mounting points before fitting.

Two replacement seat-rail grommets tested on a European July 1982 BMW E21 323i. The filenames reproduce the two catalog shapes for BMW 52101807432 and 52208238999. Confirm seat-rail version, market and grommet position before installation.

Replacement cable holder corresponding to BMW 61131267476. The creator notes that ABS prints are less flexible than the original and accept a smaller loom or hose. RealOEM and BMWFans list the holder for E21 among many classic BMW applications; only E21 is linked here because the source does not enumerate chassis.

Center cap designed and physically fitted to the 6×13-inch BBS-Mahle KBA40179 BMW Motorsport wheel used on E21. Refurbished wheels may vary, so test one cap and verify secure retention before road use. The badge number mentioned by the creator is not assigned because it identifies the separate adhesive emblem.

Dimensioned replacement wiring clip for BMW E21, E28 and E30, physically shown in use. BMWFans identifies the two creator-listed catalog applications as cable clamp 63121364431 and clamp 61131362825. Use heat-resistant material and verify loom diameter and mounting-hole retention.

Replacement trim ring or rosette for the manual sunroof handle on BMW E21, E28 and E30. The creator reports original-location fit and identifies BMW trim ring 54121867887, independently listed for E21 by RealOEM/BMWFans. Verify sunroof-handle version before fitting.

Replacement door-lock knob sleeve for BMW E21, E28 and E30, enlarged slightly for improved fit and physically demonstrated with the matching knob. The creator's two catalog references cover both sleeve and knob; neither is submitted here because public catalogs did not unambiguously map one number to this modified sleeve.

Replacement door-lock knob for BMW E21, E28 and E30, physically shown beside the original hardware and designed to work with the original or matching printable sleeve. The creator's mixed knob/sleeve catalog references are intentionally omitted. Verify pin diameter and retention.

Replacement moonroof slider developed and physically tested for a 1981 BMW E21 320is; the creator expects fit on E21 320 models equipped with a moonroof. Uses two M5 nuts instead of heat-set inserts. Confirm roof cassette, slider travel, nut capture and full open/close operation.

Dimensioned replacement glovebox damper pin for BMW E21, E28, E30, E31, E34, E38, E39, E46 and E60/E61. The creator identifies BMW pin 51161828956 and shows the physical result installed. Verify damper eye and panel thickness before fitting.

Dimensioned replacement switch knob for the Hella-style interior dome light used in BMW E12, E21 and E30. Physical prints are shown on the lamp. The creator-listed numbers identify complete lamp variants rather than this knob, so no parent-assembly number is submitted.

Press-on replacement cover for the original BMW E21 fuse box. The creator physically installed the ASA print and notes that the 220 mm model can be split and solvent-welded for smaller printers. Verify clearance, electrical isolation, heat resistance and secure retention.