Brake caliper question

[anonymous-user]

[redacted]

[Rich_AR]

Quick Google.

https://teile.com/en/porsche-tequipment-shop/model...

No mention of 991.2 however. Are the part numbers the same for 991.1 and 991.2?

[Twinfan]

I'm not sure if this helps or not, but I looked into upgrading the standard iron brakes on my 981 GTS to the 981 Spyder setup of 340mm front and 330mm rear. I think all these would bolt straight on with no issues, and whether you need a new master cylinder or not I don't know. However, here are all the part numbers I put together for reference:

981 Spyder parts

Front:

99135142314 Left Front Brake Caliper (6 piston red)
99135142414 Right Front Brake Caliper (6 piston red)
99135140301 Left Front Brake Disc (340mm x 34mm)
99135140401 Right Front Brake Disc (340mm x 34mm)
90026904703 Front Brake Disc screw (M6 x 12) - 4 required
99160918100 Front Brake Pad Wear Indicator Left & Right - 2 required
99906705309 Front Caliper Mounting Bolt (M12 x 1.5 x 85) - 4 required
99135194903 Front Brake Pad Set
99135558103 Front Brake Pipe Left
99135558203 Front Brake Pipe Right

Rear:

99135242313 Left Rear Brake Caliper (4 piston red)
99135242413 Right Rear Brake Caliper (4 piston red)
98135240300 Left Rear Brake Disc (330mm x 28mm)
98135240400 Right Rear Brake Disc (330mm x 28mm)
90026904703 Rear Brake Disc screw (M6 x 12) - 4 required
99160918300 Rear Brake Pad Wear Indicator Left & Right - 2 required
99906705309 Rear Caliper Mounting Bolt (M12 x 1.5 x 85) - 4 required
99135293902 Rear Brake Pad Set
99135558104 Rear Brake Pipe Left
99135558204 Rear Brake Pipe Right

Master cylinder:

99135513027 Brake Master Cylinder
99635590101 Brake Master Cylinder to Expansion Tank Gasket - 2 required
99335521200 Brake Master Cylinder to Brake Booster Gasket
99135501302 Expansion Tank
WHT005308 Expansion Tank Outer Hexagon Round Screw (M5 X 51)
5Q0611349A Expansion Tank Lid