Independent parts atlas sources attached
Porsche 993 · 993 103 915 54
This guide joins the factory catalogue reference to the exact products documented below. It does not certify interchangeability or provide manufacturing dimensions.
Each specification below names the exact product it describes. Alternative-part values are not measurements of the Genuine Porsche part. Missing properties are not estimated.
1.716 kg
Applies to: Porsche 993 103 915 59 · genuine
Read the specification source · checked
The current Centre Porsche Roissy product page identifies 993 103 915 59 as the orderable supersession for 993 103 915 54 and publishes a 1.716 kg piece weight.
cylinder bore: 100 mm · piston length: 63.3 mm · compression height: 31.8 mm · piston-pin length: 54 mm · piston-pin diameter: 23 mm
Applies to: MAHLE 504 36 00 · oe supplier
Read the specification source · checked
The current direct MHTeile MAHLE page identifies piston 504 36 00 for the 993 Turbo M64.60, is immediately available, and publishes the 100.0 mm bore, 63.3 mm length, 31.8 mm compression height, 54.0 mm pin length and 23.0 mm pin diameter.
Nikasil-coated cylinder bore (MAHLE 503 WR 44)
Applies to: MAHLE 503 WR 44 · oe supplier
Read the specification source · checked
The current direct MHTeile MAHLE page identifies cylinder 503 WR 44 for the 993 Turbo M64.60, is immediately available, and explicitly states that the 100.00 mm cylinder is Nikasil coated.
Check the VIN, variant, quantity and installation requirements before ordering. Availability is a dated observation, not a delivery guarantee.
993 103 915 59 · genuine
special order · reviewed
Page reached: HTTP 200
The current Centre Porsche Roissy page identifies Genuine Porsche 993 103 915 59 as the replacement for 993 103 915 54, reports special-order delivery in three to seven days and exposes Add to cart.
504 36 90 · oe supplier
in stock · reviewed
Page reached: HTTP 200
The current Kitesurf-rendered direct product page offers an immediately available six-piece MAHLE piston-and-cylinder set for the 408 PS 993 Turbo, exposes Add to cart and explicitly cross-references Porsche 993 103 915 51 and 54 together with their 56 and 59 revisions.
504 36 90The direct MS Road Race record describes the exact 993 Turbo piston-and-cylinder application as a new Genuine Porsche MAHLE product, while the current component records identify MAHLE repair kit 504 36 90. This establishes the named supplier family, not proof that one weight-group component can replace another.
Manufacturer reference evidence · checked
504 36 00The current indexed K Motorshop record names MAHLE piston 504 36 00 and cross-references the four Porsche Turbo weight-group references 993 103 915 51 through 54. This is component-reference evidence, not a historical Porsche supply-contract claim.
Manufacturer reference evidence · checked
503 WR 44The current direct MHTeile record names MAHLE cylinder 503 WR 44 for the 993 Turbo M64.60 and publishes its Nikasil running surface. This is component-reference evidence for the Turbo family, not proof that individual weight groups may be mixed.
Manufacturer reference evidence · checked
The PET variants represent different weight groups and model-year revisions. Porsche supersessions and the MAHLE cross-reference family must not be treated as permission to mix individual pistons or cylinders: confirm engine M64.60, model year, piston/cylinder weight group, compression ratio, required quantity and all workshop measurements with a professional engine builder before ordering or installation.
Illustration 102-05 · catalogue page 50 · position 1.
The reference is transcribed from the catalogue. A listing alone does not establish every vehicle variant or installation condition.
Porsche Classic Genuine Parts Catalogue — 911 993, 1994–1998