About a third lighter than aluminium. Corrodes readily and is difficult to weld, which is why Porsche abandoned it for crankcases and why period cases crack.
Magnesium Alloy
56 aftermarket parts. 48 of the aftermarket entries carry this material because the seller printed it; none was inferred from what the part usually is.
- Porsche Classic🇩🇪
Magnesium Crankcase, early 911 (F and G Series, 1968–1976)
Porsche Classic reissued the magnesium crankcase in 2023 for 2.0, 2.2, 2.4 and 2.7 litre engines — ending decades of welding cracks or hunting secondhand cases.
Engine Internals901g-seriesMagnesium Alloy - LN Engineering🇺🇸
Genuine Porsche Magnesium Crankcase Housing
The reissued cases through a US distributor, alongside the aluminium blocks for later engines.
Engine Internals901g-seriesMagnesium Alloy - Pelican Parts🇺🇸
915 Transmission Case, Magnesium (1972–1977)
The magnesium 915 case, identifiable by its dark grey, slightly rough finish against the brighter aluminium replacement.
Drivetrain901g-seriesMagnesium Alloy - Porsche AG🇩🇪
Magnesium Roof Panel, 911 GT3 RS (991.2)
Factory magnesium roof — one of very few structural magnesium panels on a road car.
Body & Glazing991Magnesium Alloy - Porsche AG🇩🇪
Magnesium Roof Panel, 911 GT3 RS (992)
The current magnesium roof, contoured a few millimetres deep — and replaced by carbon on the Weissach package for a further 1.1 lb.
Body & Glazing992Magnesium Alloy - Pelican Parts🇺🇸
915 Transmission Gear Housing, Magnesium (915 301 102 0R)
The original magnesium gear housing casting, carrying its factory part number.
Drivetrain901g-seriesMagnesium Alloy - FVD Brombacher🇩🇪
Lightweight Magnesium Engine Cooling Fan Shroud Set, 911
Magnesium fan shroud set for air-cooled engines from M90 900 onward — the rare aftermarket magnesium part that is not a wheel.
Cooling & Lubricationg-series901Magnesium Alloy - Vertex Auto🇺🇸
Alternator Fan Housing, Magnesium, 911
Magnesium alternator fan housing, carrying the factory part number.
Cooling & Lubricationg-series901Magnesium Alloy - Auto Atlanta↗🇺🇸
Gasket kit 911 69-71 ( magnesium carter)
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Engine Internals901g-series964993996997991992Magnesium Alloy - RPM Technik↗🇬🇧
992 GT3 RS Weissach Magnesium, Magnetic Shift Paddles
Accessories listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Interior & Seating901g-series964993996997991992Magnesium Alloy - JZM Porsche↗🇬🇧
Manthey Racing MR Conversion Kit 991.2 GT3RS
Manthey Kits listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Restoration & Obsolete Parts901g-series964993996997991992Magnesium Alloy - JZM Porsche↗🇬🇧
911 GT2 RS Manthey Performance Kit
Manthey Kits listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Restoration & Obsolete Parts901g-series964993996997991992Magnesium Alloy - JZM Porsche↗🇬🇧
Manthey Racing Magnesium Wheels 991.1/2 GT3RS/2RS
Wheels listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium Alloy - PMB Performance↗🇺🇸
SilverRocket Dry Carbon R-HR AeroBrake Rotor
Porsche GT4/GT4 RS Carbon Fiber listed for the 986, 987, 981, 982.
Brakes986987981982Magnesium AlloyCarbon Fibre (prepreg, autoclave cured)Carbon Fibre (layup not disclosed) - PMB Performance↗🇺🇸
Traverse MX _ Magnesium Grey
Wheel listed for the 955, 957, 958, 9ya, 95b.
Wheels9559579589ya95bMagnesium AlloyAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
Sector RSR _ Magnesium Grey / Gloss Lip
Wheel listed for the 955, 957, 958, 9ya, 95b.
Wheels9559579589ya95bMagnesium Alloy6061-T6 AluminiumAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
BRAID Forged SRF-04 (20"-22")
Wheels listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium AlloyAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
BRAID Forged BPF-02 (20"-22")
Wheels listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium AlloyAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
BRAID Forged BPF-02 (17"-19")
Wheels listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium AlloyAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
BRAID Forged I Magnesium
Wheels listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium AlloyAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
BRAID Forged
Wheels listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium Alloy - URO Parts↗🇺🇸
Aluminum Right Rear Roof Rail for Porsche 911 Targa (1984-89)
911 Collection listed for the g-series.
Restoration & Obsolete Partsg-seriesMagnesium AlloyAluminium (alloy not disclosed) - PMB Performance↗🇺🇸
Rennline 245mm Billet Fan Shroud for Porsche 911 (1965-89)
Motor Vehicle Parts listed for the 901.
Cooling & Lubrication901Magnesium AlloyAluminium (alloy not disclosed) - Sierra Madre Collection↗🇺🇸
Rubber Oil Seal - 911/912/930 65-89 999-113-183-40
Seal listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Body & Glazing901g-series964993996997991992Magnesium Alloy - Sierra Madre Collection↗🇺🇸
TecnoMagnesio Light Alloy Wheel - 356/356A/356B 50-63 644-68-101-70
Light Alloy Wheel listed for the 356.
Wheels356Magnesium Alloy - Sierra Madre Collection↗🇺🇸
Door Handle Trigger Set - 911 - 912E - 930
Door Handle Set listed for the g-series, 964, 993.
Interior & Seatingg-series964993Magnesium AlloyAluminium (alloy not disclosed) - Sierra Madre Collection↗🇺🇸
Transmission Gasket/Repair Kit - Magnesium Case 901-300-916-00
Repair Kit listed for the 901.
Drivetrain901Magnesium Alloy - Sierra Madre Collection↗🇺🇸
CMS Side Cover - 911 70-71 - 914 70-76 CMS-911-SC
Side Cover listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 914.
Restoration & Obsolete Parts901g-series964993996997991992914Magnesium AlloyAluminium (alloy not disclosed) - Sierra Madre Collection↗🇺🇸
Differential Carrier Bearing 69-98 999-059-027-00
Bearing listed for the 901, g-series, 964, 993, 996, 914, 924, 928.
Drivetrain901g-series964993996914924928Magnesium Alloy - Sierra Madre Collection↗🇺🇸
CMS Bearing Retainer - 911 69-71 - 914 70-76 CMS-911-BRT
Bearing Retainer listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 914.
Engine Internals901g-series964993996997991992914Magnesium Alloy - Porsche AG↗🇩🇪
Spyder Magnesium Summer Wheel & Tire Set - 91804460006 - 918 13-15 91804460006
Wheel and Tire Set listed for the 918.
Wheels918Magnesium Alloy - Sierra Madre Collection↗🇺🇸
CMS Porsche 911/914 Intermediate Plate 69-76 911-301-221-00
Transaxle Support Panel listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 914.
Drivetrain901g-series964993996997991992914Magnesium AlloyAluminium (alloy not disclosed) - Sierra Madre Collection↗🇺🇸
CMS Intermediate Plate - 911 69-71 - 914 70-76 CMS-911-IP
Intermediate Plate listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 914.
Restoration & Obsolete Parts901g-series964993996997991992914Magnesium AlloyAluminium (alloy not disclosed) - Sierra Madre Collection↗🇺🇸
Engine 911 Model Magnesium Engine Cutaway Porsche Art Box Framed
Art Box Framed listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Engine Internals901g-series964993996997991992Magnesium Alloy - Sierra Madre Collection↗🇺🇸
915 Shift Fork Plate Upgrade - 911 72-86 JWST-915-FORK
Shift Fork Plate Upgrade listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Drivetrain901g-series964993996997991992Magnesium AlloyAluminium (alloy not disclosed) - Sierra Madre Collection↗🇺🇸
Engine Case Splitter - 911 | SR124
ENGINE listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Aerodynamics901g-series964993996997991992Magnesium AlloyStainless Steel (grade not disclosed)Aluminium (alloy not disclosed) - Porsche AG↗🇩🇪
Magnesium Selector Lever - Chestnut Brown - Cayenne 03-10 955-044-700-00-L63
Selector Lever listed for the 955, 957, 958, 9ya.
Restoration & Obsolete Parts9559579589yaMagnesium Alloy - Porsche AG↗🇩🇪
20/21 in GT2 RS Magnesium Wheel Set - 99104460340 - 991 12-18 99104460340
Wheel Set listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Wheels901g-series964993996997991992Magnesium Alloy - Auto Atlanta↗🇺🇸
HandR 57MM WHEEL SPACERS; 924, 944 1983-91
Part listed for the 924, 944.
Wheels924944Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
Magnesium single throttle body kit 964/993 (Design for air flow mass sensor)
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Induction & Charging901g-series964993996997991992Magnesium Alloy - Auto Atlanta↗🇺🇸
H&R DR Series Wheel Spacer 7mm boxster, 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 45mm wheel spacer boxster/cayman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 40mm wheel spacer boxster/cAYman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 35mm wheel spacer Boxster/cayman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 30mm wheel spacer Boxster/cayman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 23mm wheel spacer boxster/cayman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 18mm wheel spacer boxster/cayman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 15 mm wheel spacer boxster/cayman
Part listed for the 986, 987, 981, 982.
Wheels986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 14mm wheel spacer boxster/cayman, 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
H&R Trak+ 7 mm wheel spacer boxster/cayman 996, 997
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992, 986, 987, 981, 982.
Wheels901g-series964993996997991992986987981982Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
Original Set of rocker panels/ Side Skirts 993 RSR / GT2 Look
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Body & Glazing901g-series964993996997991992Magnesium Alloy - Auto Atlanta↗🇺🇸
Individual magnesium throttle body kit 964/993
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Induction & Charging901g-series964993996997991992Magnesium Alloy - Auto Atlanta↗🇺🇸
916 Gearbox Conversion Kit - currently unavailable
Part listed for the 914.
Drivetrain914Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
916 Gearbox Conversion Kit, Electronic Speedo - currently unavailable
Part listed for the 914.
Drivetrain914Magnesium AlloyAluminium (alloy not disclosed) - Auto Atlanta↗🇺🇸
Air Flow Muffler 964 C2 / C4 and RS - for Plastic Intake Manifold
Part listed for the 901, g-series, 964, 993, 996, 997, 991, 992.
Exhaust901g-series964993996997991992Magnesium Alloy - AutoTalent↗🇺🇸
SilverRocket Dry Carbon Fiber R-HR AeroDisc | Porsche GT4 RS (Mg Rims)
Porsche GT4/GT4 RS Carbon Fiber listed for the 986, 987, 981, 982.
Restoration & Obsolete Parts986987981982Magnesium AlloyCarbon Fibre (prepreg, autoclave cured)Carbon Fibre (layup not disclosed)