915 Transmission Case, Magnesium (1972–1977)

The magnesium 915 case, identifiable by its dark grey, slightly rough finish against the brighter aluminium replacement.

← Back to catalogue results

Published fitment
901 · See fitment notes (1972–1973)
g-series · See fitment notes (1974–1977)
Recorded availability
Discontinued. Confirm with the supplier.
Recorded price
No published price recorded

View supplier page ↗

Reported by a secondary source. Sources last accessed ; fitment is not independently verified.

DrivetrainDiscontinuedReported by a secondary source

Manufacturing

ManufacturerPelican Parts
Origin🇺🇸 United States
Vendor head office — place of manufacture not stated
ProcessCast
Additively manufacturedNo
MaterialMagnesium Alloy
NotesLight but prone to cracking and corrosion — the same trade Porsche made and later reversed on the crankcase. Worth identifying before buying a used box, because the two are not interchangeable in condition or value.

Fitment

901All models (1972–1973)
g-seriesAll models (1974–1977)
Some 1977 boxes pair a magnesium gear case with an aluminium final-drive case. From 1978 and the 911 SC the whole case is aluminium.

Sources

  1. Porsche 911 915 and G50 Transmission Case Parts — Stoddard, accessed 2026-08-17
  2. Heritage Page: Porsche Transmission Information — Lüfteknic, accessed 2026-08-17