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Crankshaft seal. Porsche 928 - 99911326340
99911326340/1
Vehicle Group
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Information
Crankshaft seal. 60 X 85 X 10 mm.
Front crankshaft seal also known as a shaft sealing ring. It sits at the front of the engine, sealing the point where the crankshaft passes through the engine block - typically behind the vibration damper or timing gear. Its purpose is to keep engine oil contained while allowing the crankshaft to spin freely.
Fits:
Porsche 928 1978 - 1995
Diagram ref no 3
Over time, the crankshaft seal can wear down from constant heat, oil exposure, and friction. The rubber lip may harden, crack, or become damaged, losing its ability to seal properly. When this happens, oil begins to leak, which can create a mess, damage engine components, or cause belts and pulleys to slip if oil spreads across them.
How to Know If It’s Failing:
You might suspect the seal is failing if you notice:
• Oil dripping or forming a puddle under the front section of the engine.
• Visible oil seepage around the crankshaft front seal area.
• Smoke or burning smell under the hood (oil hitting a hot surface). Low oil levels without visible external damage.
• After so many miles or long periods without seal maintenance, even if there’s not a massive leak yet.
If a worn front crankshaft seal isn’t replaced, the oil leak will usually worsen over time. This can lead to significant oil loss and starve the engine of proper lubrication, causing serious internal damage. Leaking oil may also spread onto belts and pulleys, leading to slippage, premature wear, or even belt failure. In addition to making a mess and degrading nearby components, oil on hot surfaces can pose a fire hazard. Left unchecked, the problem often becomes more expensive to fix, especially if the leak reaches sensors, wiring, or other critical parts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911326340
The product you are viewing cross references to these numbers
Front crankshaft seal also known as a shaft sealing ring. It sits at the front of the engine, sealing the point where the crankshaft passes through the engine block - typically behind the vibration damper or timing gear. Its purpose is to keep engine oil contained while allowing the crankshaft to spin freely.
Fits:
Porsche 928 1978 - 1995
Diagram ref no 3
Over time, the crankshaft seal can wear down from constant heat, oil exposure, and friction. The rubber lip may harden, crack, or become damaged, losing its ability to seal properly. When this happens, oil begins to leak, which can create a mess, damage engine components, or cause belts and pulleys to slip if oil spreads across them.
How to Know If It’s Failing:
You might suspect the seal is failing if you notice:
• Oil dripping or forming a puddle under the front section of the engine.
• Visible oil seepage around the crankshaft front seal area.
• Smoke or burning smell under the hood (oil hitting a hot surface). Low oil levels without visible external damage.
• After so many miles or long periods without seal maintenance, even if there’s not a massive leak yet.
If a worn front crankshaft seal isn’t replaced, the oil leak will usually worsen over time. This can lead to significant oil loss and starve the engine of proper lubrication, causing serious internal damage. Leaking oil may also spread onto belts and pulleys, leading to slippage, premature wear, or even belt failure. In addition to making a mess and degrading nearby components, oil on hot surfaces can pose a fire hazard. Left unchecked, the problem often becomes more expensive to fix, especially if the leak reaches sensors, wiring, or other critical parts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911326340
99911326340
19409
The product you are viewing cross references to these numbers
Price: €27.84
In stock
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Information
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) 2009-Onwards
Holy broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.
Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.
Holy broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.
Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.
Price: €491.93
In stock
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Information
O-ring crankcase housing 12 X 3.
Fits:
Porsche 987.2 Boxster - 2009 to 2012
Porsche 981 Boxster - 2012 to 2016
Porsche 718 Boxster - 2017 Onwards
Porsche 987.2 Cayman - 2009 to 2012
Porsche 981 Cayman - 2013 to 2016
Porsche 718 Cayman - 2017 Onwards
Porsche 997.2 - 2009 to 2012
Porsche 991 - 2012 to 2019
Porsche 95B Macan - 2014 to 2017
Porsche 970 Panamera - 2009 to 2016
Porsche 958 Cayenne - 2010 to 2017
Related reference numbers
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PAF008270
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Fits:
Porsche 987.2 Boxster - 2009 to 2012
Porsche 981 Boxster - 2012 to 2016
Porsche 718 Boxster - 2017 Onwards
Porsche 987.2 Cayman - 2009 to 2012
Porsche 981 Cayman - 2013 to 2016
Porsche 718 Cayman - 2017 Onwards
Porsche 997.2 - 2009 to 2012
Porsche 991 - 2012 to 2019
Porsche 95B Macan - 2014 to 2017
Porsche 970 Panamera - 2009 to 2016
Porsche 958 Cayenne - 2010 to 2017
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
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PAF008270
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Price: €4.38
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