Support tube, left

993 505 641 01

Rear chassis Structural Safety 7 · Structural

Safety-critical part. This sits at level 7 (Structural) on the ten-point scale. A substitute part here carries consequences a trim piece does not: it needs engineering review, not a like-for-like appearance match.

Support tube, left, position 13 of Porsche catalogue illustration 802-05 — Position 13, cut from illustration 802-05. © Dr. Ing. h.c. F. Porsche AG

Enhanced alternatives

None catalogued. No aftermarket replacement for this reference has been found and verified. That is a finding rather than a gap in research: for structural 993 carriers and brackets, the aftermarket largely does not exist, which is precisely what makes them reproduction candidates. Any reproduction here is a safety-level 7 part and needs a qualification programme, not a copied outline.

Full catalogue illustration 802-05

Porsche parts catalogue illustration 802-05, showing Support tube, left at position 13 — Illustration 802-05, catalogue page 387. This part is **position 13**.
© Dr. Ing. h.c. F. Porsche AG · KAT 17

Catalogue record

Reference	993 505 641 01
Name	Support tube, left Stützrohr links · Tube de support gauche
Catalogue group	Rear body / bumper supports
Position	13
Quantity per car	1
Catalogue evidence	(13) · 993 505 641 01 · Support tube /L · 1 · TURBO M491/495
Verified	2026-08-17 Porsche PET — 911 1994–1998 Type 993 · KAT 17

Fitment

Turbo	1995–1998 · engine M64.60 · gearbox G64.51 / G64.52 · AWD
Carrera 4S	1996–1998 · engine M64.21 · gearbox G64.21 · AWD

Specification

OEM material	unknown — not recorded rather than estimated
OEM weight	unknown
OEM price	unknown
Rotating mass	unknown
Unsprung mass	unknown

M491/M495 are the wide-body option codes, which the Carrera 4S also carries — so this is a wide-body part rather than a Turbo-exclusive one. Separate variants exist for the standard body (-03) and Carrera RS (-02).