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Porsche
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Gearbox / Transmission
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Gearbox Parts
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Bearings / Bearing Retaining Plates / Bushes
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Four point gearbox bearing. Porsche 911 65-83 ❭ 9990520160A
Four point gearbox bearing. Porsche 911 65-83 - 9990520160A
9990520160A/1
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
Information
Four point gearbox bearing.
A four-point contact bearing inside the gearbox housing that supports the pinion / differential or output shaft, maintaining correct alignment and rotational support under load. It is a critical structural component of the transmission case on classic 911 / 914 gearboxes. Sold as a single bearing unit - replace as needed when rebuilding or servicing the gearbox, or when diagnosing shaft play or bearing wear.
Fits:
Porsche 911 1965 - 1971 Manual Gearbox cars
Porsche 911 1965 - 1983 Sportomatic Gearbox cars
Porsche 914 1970 - 1976 Manual and Sportomatic gearboxes
This bearing replaces the factory-installed unit (or previous equivalent bearing - OE part number 99905201600) and restores proper gearbox support for shafts that transmit torque and rotational forces - vital for gearbox longevity and reliable shifting.
Gearbox bearings wear out over time from torque loads, heat, and repeated cycles. A worn or damaged four-point bearing may lead to:
• Shaft misalignment or excessive play
• Increased gear noise, whining or rumbling
• Premature wear on shafts, gears, or synchros
• Gearbox instability or failure under load
Replacing with a correctly spec’d bearing restores shaft integrity, ensures smooth power transmission, and helps prevent costly internal damage - especially important on vintage 911 and 914 gearboxes where early detection can save major rebuilds.
You should consider replacing this bearing if:
• There is noticeable shaft play or wobble in the gearbox output or pinion shaft
• You hear whining, rumbling, or unusual noise from the gearbox under load
• The gearbox has high mileage or has seen hard use
• You are performing a gearbox rebuild, overhaul, or restoration
• Internal inspection reveals bearing wear, scoring, or heat damage
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9990520160A
The product you are viewing cross references to these numbers
A four-point contact bearing inside the gearbox housing that supports the pinion / differential or output shaft, maintaining correct alignment and rotational support under load. It is a critical structural component of the transmission case on classic 911 / 914 gearboxes. Sold as a single bearing unit - replace as needed when rebuilding or servicing the gearbox, or when diagnosing shaft play or bearing wear.
Fits:
Porsche 911 1965 - 1971 Manual Gearbox cars
Porsche 911 1965 - 1983 Sportomatic Gearbox cars
Porsche 914 1970 - 1976 Manual and Sportomatic gearboxes
This bearing replaces the factory-installed unit (or previous equivalent bearing - OE part number 99905201600) and restores proper gearbox support for shafts that transmit torque and rotational forces - vital for gearbox longevity and reliable shifting.
Gearbox bearings wear out over time from torque loads, heat, and repeated cycles. A worn or damaged four-point bearing may lead to:
• Shaft misalignment or excessive play
• Increased gear noise, whining or rumbling
• Premature wear on shafts, gears, or synchros
• Gearbox instability or failure under load
Replacing with a correctly spec’d bearing restores shaft integrity, ensures smooth power transmission, and helps prevent costly internal damage - especially important on vintage 911 and 914 gearboxes where early detection can save major rebuilds.
You should consider replacing this bearing if:
• There is noticeable shaft play or wobble in the gearbox output or pinion shaft
• You hear whining, rumbling, or unusual noise from the gearbox under load
• The gearbox has high mileage or has seen hard use
• You are performing a gearbox rebuild, overhaul, or restoration
• Internal inspection reveals bearing wear, scoring, or heat damage
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9990520160A
9990520160A
99905201600
The product you are viewing cross references to these numbers
Price: £145.00
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