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- 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 914 (1970-1976)
Set includes: 24 x Bearing shells / 2 x End shells
The Main Bearing Set is a replacement for the original Porsche crankshaft main bearings used in 911 and 914 engines. These standard-size bearings are manufactured to exact OEM tolerances, providing a perfect fit, proper crush, and ideal oil clearance for stable lubrication and crankshaft alignment. The set includes all main bearing shells required for a complete rebuild of one engine, providing smooth, quiet rotation and factory-spec oil pressure.
Fits:
Porsche 911 2.4L / 2.7L 1965 - 1977
Porsche 911 Carrera 3 1976
Porsche 914 1970-76
Cars with engine numbers upto:
>> 615 0305
>> 615 9066
>> 635 0094
>> 635 9040
>> 645 0388
>> 645 9030
>> 655 0022
>> 655 9021
>> 665 0113
Diagram Ref No 24 + 25
Consists of part numbers:
- 901 101 131 00 - Bearing shell x2
- 901 101 132 02 - Bearing shell x12
Main bearings wear over time due to heat, load, and oil pressure fluctuations. Worn bearings can cause low oil pressure, crankshaft vibration, or bearing noise.
Replace these bearings:
• During a full engine rebuild or bottom-end overhaul
• When oil pressure drops or metal particles appear in the oil
• As part of preventative maintenance on high-mileage or vintage engines
New bearings restore precise crankshaft support, improve lubrication stability, and extend engine life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110190100
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
14 per engine. Price is each
Fits:
Porsche Boxster 986 2.7L M96.22 / M96.23
Porsche Boxster 986 3.2L M96.21 / M96.24
Porsche 996 3.4L M96.01 / M96.02 / M96.04
Porsche Boxster 987 2.7L M97.20
Porsche Boxster 987 3.2L M96.26
Porsche Cayman 987C 2.7L M97.20
Porsche Boxster 986 2.5L M96.20*
Porsche Boxster 987 2.7L M96.25*
Diagram ref. 13.
Important fitment information – please read before ordering:
Please be aware that some early 2.5L 986 Boxster models (*) were fitted with main bearing shells with the alignment/locating tab in the centre, as opposed to offset to the side, which is what this listing is for. Please check your existing bearing shells before ordering. If you have centre-aligned bearing shells, this product is not suitable and is no longer offered by Porsche as a replacement part.
In addition, some 2.5L models may be fitted with the earlier-style crankcase carrier, meaning the bearing shells required have the alignment tab on the right, not the left as is the case with this listing. Please ensure you check your existing shells before ordering. If the alignment tab on your existing shells is located on the right, please use part no. 99610113164 instead.
Additionally, for 2005 and 2006 2.7L 987 Boxster models (M9625 engine code) (*), the existing bearing shells are no longer offered by Porsche. These have the locating tab on the opposite side, meaning these bearings are incompatible. In order to fit these bearings, the crankcase carrier will need to be updated to the later style, part no. 99610100709.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610120510
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Price is each. 12 Bearing Shells per engine.
Original Porsche Standard Size Bearings
Price Shown Is For Each Bearing
Fits:
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 996
Porsche 997
Click 'Zoom in' for large parts diagram.
Diagram Ref No 12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610312162
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche 914 (1970-1976)
Fits:
Porsche 986 Boxster 1997-04 engines M96.20 / M96.22 / M96.23
Porsche 986 Boxster S 2001-04 M96.21 / M96.24
Porsche 987 Boxster 2004-08 engines M96.25 / M97.20
Porsche 987 Boxster S 3.2L >>2006 engines M96.26
(not for 3.4L engines)
Porsche 987C Cayman 2004-08 engines M97.20
Porsche 996 C2 / C4 >>2001 engines M96.01 / M96.02 / M96.04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 24.