Wheels / Wheels
Black conventional bolts or MY2012 silver bolts
Porsche service information specifies 118 ft-lb / 160 Nm for black conventional wheel bolts and for silver conventional bolts from model year 2012.
Conventional wheel bolts only. Do not use this value for earlier silver bolts or center-lock wheels. Verify the fastener type and model year before service.
Source
Checked Sep 7, 2026
Porsche 911 (997) manufacturer certificate 4440 ENU 88/21
Porsche manufacturer certificate 4440 ENU 88/21: silver wheel bolts from MY2012 and black wheel bolts are tightened to 160 Nm.
Open source ->Wheels / Wheels
Center-lock wheel nut (equipped vehicles)
Porsche specifies 443 ft-lb / 600 Nm for 997 center-lock wheels. Follow the complete Porsche lubrication, inspection, tightening, locking, and verification procedure.
Only for 997 vehicles actually equipped with Porsche central wheel locks. Never apply this value to conventional five-lug wheel bolts.
Source
Checked Sep 7, 2026
Porsche recall campaign 6/11 EN AB01
Porsche recall campaign 6/11 covers affected 997 central-lock applications and specifies 600 Nm as the standard requirement.
Open source ->Wheels / Wheels
Silver conventional wheel bolts (through MY2011)
Porsche service information specifies 96 ft-lb / 130 Nm for silver conventional wheel bolts through model year 2011.
Conventional wheel bolts only. Do not use this value for black bolts, MY2012 silver bolts, or center-lock wheels. Verify the fastener type and model year before service.
Source
Checked Sep 7, 2026
Porsche 911 (997) manufacturer certificate 4440 ENU 88/21
Porsche manufacturer certificate 4440 ENU 88/21: silver wheel bolts through MY2011 are tightened to 130 Nm.
Open source ->