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- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
The 92830231908 is a genuine Porsche synchroniser brake band (often referred to as a synchro band or braking ring) used inside Porsche manual gearboxes.
Fits:
Porsche 911 1974 - 1986 (915 Gearbox)
Diagram ref no 37
• This synchro brake band is located inside the manual transmission (gearbox) — not externally visible.
• It forms part of the synchroniser mechanism, mounted between the hub sleeve and gear cone.
• Its job is to provide controlled friction to help the synchro ring synchronise gear speed during shifting.
The synchro / brake band operates under constant friction every time the driver shifts gears. Over years of driving, this friction causes wear on the band’s friction surface and tension. When it wears out:
• Gear changes become stiffer or notchy
• Drivers may experience grinding noises when shifting into 1st or 2nd gear
• The transmission may “crunch” or resist engaging lower gears
• There may be slippage or hesitation before the gear fully engages.
If ignored, a worn synchro band can damage associated parts — like the synchro rings, hubs, or even gear teeth.
Replacement is recommended during:
• Transmission rebuilds or overhauls (especially if the gearbox is open)
• When experiencing hard or noisy shifting into 1st or 2nd gear
• After high mileage or track use, where shifting load is higher
• Anytime a synchro ring or gear hub is replaced — the band should be renewed at the same time.
Because it’s an internal gearbox part, it’s most efficiently replaced during gearbox servicing or clutch/transmission removal work.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92830231908
The product you are viewing cross references to these numbers
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Fits:
Porsche 997.2 Carrera 2009-12 with Manual Gearbox G9705 / G9735
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
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99730421102
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- Porsche Boxster T 718 2.0L Manual (300 Bhp)
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- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
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- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
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- Porsche Boxster Spyder 718 4.0L (420 Bhp)
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- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
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- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
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Sold each.
Fits:
Porsche 997.2 C2 / C4 2009-12 with PDK transmission CG100 / CG130
Porsche 997.2 Turbo 2010-13 with PDK transmission CG150
Porsche 991.1 C2 / C4 2012-16 with Manual gearbox G9100 / G9130
Porsche 991.1 C2 2012-16 with PDK transmission CG105 / CG135
Porsche 991.2 C2 / C4 2017-19 with Manual gearbox G9105 / G9106 / G9135
Porsche 991 Turbo 2014-20 with PDK transmission CG155 / CG160 / CG1800
Porsche 991 GT3 2014-21 with 6-speed Manual gearbox G9190+
Porsche 991 GT3 2014-21 with PDK transmission CG190 / CG192 / CG195
Porsche 981 Boxster 2012-16 with PDK transmission CG205 / CG225
Porsche 982 Boxster 2017>> with PDK transmission CG2.10 / CG2.40 / CG2.70
Porsche 982SP Boxster Spyder 2019>> with PDK transmission CG2.70
Porsche 982C Cayman 2017>> with PDK transmission CG2.10 / CG2.40 / CG2.70
Porsche 982C Cayman GT4 2019>> with PDK transmission CG2.70 / CG2.75
Diagram ref no 3
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9P1301125
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