Westwood
The company originally started as Westwood Trading over 19 years ago, and then merged with its sister company, to form Westwood Cylinder Liners Ltd. Duncan Andrews and his late father Paul Andrews have over 40 years experience in the engine remanufacturing industry. Our family have been involved with the rebuilding of engines since the 1930’s. Duncan Andrews Great Grandfather, Billy Andrews started an engine rebuilding company after the First World War.
Our customers include leading Porsche engine reconditioners and rebuilders and race engine builders.

3.8L, 99.00mm Bore, flanged liner (No cutouts).

Fits:
Porsche 997 3.8L Price is Each
Inside Diameter 99.00mm / 3.898inch
Outside Diameter 104.20mm / 4.103inch
Length 128.00mm / 4.992inch
Flange Diameter 107.40mm / 4.228inch
Flange Depth 5.00mm / 0.197inch
NEW Cast Iron cylinder liners suitable for repairing damaged Alusil bores in 997 engines.
These liners are becoming very popular, with increasing numbers of cars suffering from scoring in the bores.
The liners will need to be fitted by a professional machine shop. You will not need to get special pistons or rings, as the original spec ones can be used with these cast iron liners.
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>

Normally you cannot use a regular bearing with standard sizes once the crankshaft has been reworked, for this reason we have custom-made bearings with undersize dimensions to compensate for the material taken away.

Outer diameter standard, inner diameter - 0,25 mm
Price is for 2 Bearings. 14 Bearing Shells per engine.
Fits:
M96.03
Porsche 996 3.6L
M97.21 / M97.22
Porsche 987 Cayman 3.4L
Porsche 987 Boxster 3.4L
Porsche 997 3.6L / 3.8L
Porsche 996 3.6L
Click picture for large parts diagram.
Diagram Ref No 13.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610120904
The product you are viewing cross references to these numbers
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman S 3.4L 987C 2005-08

Normally you cannot use a regular bearing with standard sizes once the crankshaft has been reworked, for this reason we have custom-made bearings with undersize dimensions to compensate for the material taken away.

Outer diameter + 1,00 mm, inner diameter - 0,50 mm
Price is for 2 Bearings, 14 Bearing Shells per engine.
Fits:
M96.03
Porsche 996 3.6L
M97.21 / M97.22
Porsche 987 Cayman 3.4L
Porsche 987 Boxster 3.4L
Porsche 997 3.6L / 3.8L
Porsche 996 3.6L
Click picture for large parts diagram.
Diagram Ref No 13.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610120904
The product you are viewing cross references to these numbers
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman S 3.4L 987C 2005-08

6 sets per engine. Price is for 1 set.

These are better than the original & have been tested by many engine rebuilds.
Top Ring and Bottom rings = Stainless CAS Nitrided
Middle Ring = Cast Iron
Fits:
Porsche 997 3.8L M97.01
ø99 mm, Ring 1,20 x 1,50 x 2,00 mm
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710305305
The product you are viewing cross references to these numbers
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>

6 sets per engine. Price is for 1 set.

These are better than the original & have been tested by many engine rebuilds.
Top Ring and Bottom rings = Stainless CAS Nitrided
Middle Ring = Cast Iron
Fits:
Porsche 996 3.4L >>2001
M96.01/02/04 ø96 mm, Ringe 1,20 x 1,50 x 2,00 mm
These piston rings are suitable for original Locasil bores and our own Cast Iron / Ductile cylinder liners. These are manufactured to the Original OE Specification, so will fit OE Pistons.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610305302
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01