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Porsche > 911 & 912 (1965-1989) > 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F) > Engine Rebuild Parts >

Piston Rings

Piston Rings

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DISPLAYING 1 to 6 (of 6 products)
Piston ring set. Porsche 911 1969-74 2.2L - 008 911 84ROS, 00891184ROS, 008 911 84RLS, 00891184RLS
1
Piston ring set. Porsche 911 1969-74 2.2L
00891184
Product Information
Product Information
Chrome Top Compression Rings.
Restore effective cylinder sealing and dependable compression during an engine rebuild with these OE Match Chrome Top Compression Rings, available under references 00891184ROS and 00891184RLS. Designed for compatible engine applications, these compression rings fit into the piston ring grooves and create a critical seal between the piston and cylinder wall.

Fits: Porsche 911 1969-74 2.2L
Number of CYL's: 6

The top compression ring operates closest to the combustion chamber and is exposed to some of the highest temperatures and pressures within the engine. Its primary role is to contain combustion gases above the piston, helping maintain cylinder pressure and reducing the amount of gas that escapes into the crankcase. The ring also assists with transferring heat from the piston into the cylinder wall.  

What This Product Does:
  • Create a combustion seal between the pistons and cylinder walls.
  • Help retain combustion pressure within each cylinder.
  • Support strong and consistent engine compression.
  • Reduce combustion gases escaping into the crankcase.
  • Help minimise excessive engine blow-by.
  • Assist with transferring heat from the pistons into the cylinder walls.
  • Feature a chrome running surface for increased wear resistance.
  • Support efficient combustion and dependable engine performance.
  • Replace worn, damaged, broken, seized, or sticking compression rings.
  • Provide an OE-style replacement for compatible engine rebuilds.

Symptoms Of Wear Or Failure:

  • Low or uneven cylinder compression.
  • Excessive crankcase pressure or blow-by.
  • Reduced engine power or poor acceleration.
  • Poor or inconsistent engine performance.
  • Increased engine oil consumption.
  • Blue or blue-grey smoke from the exhaust.
  • Increased exhaust emissions.
  • Oil-fouled spark plugs.
  • Poor compression or leak-down test results.
  • Excessive carbon deposits within the combustion chambers.
  • Broken, worn, seized, or damaged compression rings discovered during disassembly.
  • Excessive wear of the piston ring grooves or cylinder bores.

Why Replacement Matters:
  • Top compression rings are essential for containing the high pressures generated during combustion. When the rings become worn, damaged, stuck, or lose their ability to maintain contact with the cylinder wall, combustion gases can escape past the piston into the crankcase. This can result in reduced compression, loss of engine performance, increased blow-by, and potentially higher oil consumption.
  • A broken or severely worn compression ring can also damage the piston ring groove or score the cylinder wall. Continued operation with damaged rings can therefore turn a relatively localised problem into a more extensive engine repair requiring replacement or machining of pistons and cylinders.
  • Correct installation is especially important when fitting chrome-faced compression rings. The piston ring grooves, cylinder bore diameter, taper, ovality, and surface finish should be accurately inspected and measured. Ring end gaps and side clearances must be checked against the correct specifications, and the cylinder surface preparation must be suitable for the ring material to promote correct bedding and sealing.
  • Replacing worn or damaged components with the correct OE Match Chrome Top Compression Rings – 00891184ROS or 00891184RLS helps restore combustion sealing, cylinder compression, and dependable engine performance when installed as part of a correctly measured and prepared engine rebuild.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

00891184
008 911 84ROS
00891184ROS
008 911 84RLS
00891184RLS

The product you are viewing cross references to these numbers
Piston Ring Set. Porsche 911 1970-73 2.2L / 2.4L - 91110394500, 91110334900, 91110334600, 91110335502, 08-319600-10
1
Piston Ring Set. Porsche 911 1970-73 2.2L / 2.4L
91110394500/1
Product Information
Product Information
Piston Ring Set. 6 sets per engine. Price is for 1 set.

mahle

Fits: Porsche 911 E / S / T 1970-73 2.2L / 2.4L

Sizes: 84x1.5mm / 84x1.5mm / 84x4mm

Click 'Zoom in' for large parts diagram.
Diagram Ref No 23.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91110394500
91110394500
91110334900
91110334600
91110335502
08-319600-10

The product you are viewing cross references to these numbers
Piston ring set. Porsche 911 1973-77 2.7L - 91110393400, 08-319700-10, 91110335100, 91110335200, 91110335700
3
Piston ring set. Porsche 911 1973-77 2.7L
91110393400/1
Product Information
Product Information
Piston ring set. 6 sets per engine. Price is for 1 set.

goetze
GOETZE ref no 08-319700-10

Fits:
Porsche 911 2.7L 1973-77 (210 Bhp)
(For special edition Carrera 2.7 with upgraded engine - not for normal 2.7 engine)

Sizes: 90x1.5mm / 90x1.5mm / 90x4mm

Click picture for large parts diagram.
Diagram Ref No 23.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91110393400
91110393400
08-319700-10
91110335100
91110335200
91110335700

The product you are viewing cross references to these numbers
Piston ring set. Porsche 911 2.2L / 2.4L - 008 911 84R, 00891184R, 008 911 86R, 00891186R, 00891184E, 0089184S, 00891184PJE, 00891184EP, 00891184SP, 00891184JEP, 00891186S, 00891186EJE, 00891186SJE, 00891186EPJE, 00891186SPJE
1
Piston ring set. Porsche 911 2.2L / 2.4L
0089118
Product Information
Product Information
Piston Rings Set.
Restore effective cylinder sealing, compression, and oil control during an engine rebuild with this OE Match Piston Ring Set, available under references 00891184R and 00891186R. Designed for compatible engine applications, these piston rings fit into the machined grooves around each piston and create the critical sealing interface between the piston and cylinder wall.

Fits: Porsche 911 2.2L / 2.4L
Ring Size: 1.5 x 1.5 x 3.0
Number of CYL's: 6

This is the replacement ring set for Retro Performance 84mm (00891184E), (0089184S) (00891184PJE), (00891184EP), (00891184SP), (00891184JEP) and 86mm (00891186S), (00891186EJE), (00891186SJE), (00891186EPJE) and (00891186SPJE) Kits

Piston rings perform several essential functions within an internal combustion engine. The compression rings help contain the pressure generated during combustion, minimising the amount of combustion gas that escapes past the piston into the crankcase. The oil-control rings regulate the lubricating oil film on the cylinder walls, removing excess oil while retaining sufficient lubrication for smooth piston movement. The rings also assist with transferring heat from the pistons into the cylinder walls.  

What This Product Does:
  • Creates an effective seal between the pistons and cylinder walls.
  • Helps retain combustion pressure within each cylinder.
  • Supports strong and consistent engine compression.
  • Reduces combustion gas leakage into the crankcase.
  • Helps minimise excessive engine blow-by.
  • Controls the lubricating oil film on the cylinder walls.
  • Helps prevent excessive engine oil from entering the combustion chambers.
  • Assists with transferring piston heat into the cylinder walls.
  • Supports efficient combustion and dependable engine performance.
  • Replaces worn, damaged, broken, seized, or sticking piston rings.
  • Provides an OE-style replacement for compatible engine rebuilds.

Symptoms Of Wear Or Failure:
  • Low or uneven cylinder compression.
  • Excessive engine oil consumption.
  • Blue or blue-grey smoke from the exhaust.
  • Excessive crankcase pressure or blow-by.
  • Reduced engine power or poor acceleration.
  • Increased exhaust emissions.
  • Oil-fouled spark plugs.
  • Carbon deposits within the combustion chambers.
  • Poor compression or leak-down test results.
  • Excessive oil entering the combustion chambers.
  • Broken, worn, seized, or damaged rings discovered during engine disassembly.
  • Excessive cylinder bore or piston ring-groove wear.

Why Replacement Matters:

  • Piston rings are essential for maintaining the cylinder seal required for efficient compression and combustion. When compression rings become worn, damaged, stuck, or lose their tension, combustion gases can escape past the pistons into the crankcase. This reduces cylinder sealing and may lead to lower compression, reduced engine performance, and excessive crankcase blow-by.
  • Worn oil-control rings can allow excessive lubricating oil to enter the combustion chambers. This can result in increased oil consumption, blue exhaust smoke, spark plug fouling, carbon deposits, and increased emissions. Continued operation with poor ring sealing may also accelerate wear of the pistons, cylinder walls, and other internal engine components.
  • Correct ring selection and installation are particularly important during an engine rebuild. Incorrect ring dimensions, excessive or insufficient ring end gaps, worn piston grooves, or an unsuitable cylinder surface finish can prevent new rings from bedding and sealing correctly. Insufficient ring end clearance can cause the ends to contact as operating temperatures increase, potentially resulting in broken rings, piston damage, or cylinder scoring.
  • Replacing worn or damaged components with the correct OE Match Piston Ring Set – 00891184R or 00891186R helps restore cylinder sealing, compression, oil control, and dependable engine performance when installed as part of a correctly measured and prepared engine rebuild.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0089118
008 911 84R
00891184R
008 911 86R
00891186R
00891184E
0089184S
00891184PJE
00891184EP
00891184SP
00891184JEP
00891186S
00891186EJE
00891186SJE
00891186EPJE
00891186SPJE

The product you are viewing cross references to these numbers
Piston ring set. Porsche 911 T 2.2L 69-71 - 91110390601, 91110331101, 91110331300, 91110331400
2
Piston ring set. Porsche 911 T 2.2L 69-71
91110390601/1
Product Information
Product Information
Piston ring set. 6 sets per engine. Price is for 1 set.

goetze

Sizes: 84x1.5mm / 84x2mm / 84x5mm

Fits:
Porsche 911 T 2.2L 1969-71

Engine codes:
- 911.03
- 911.06
- 911.07
- 911.08

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91110390601
91110390601
91110331101
91110331300
91110331400

The product you are viewing cross references to these numbers
Piston ring set. Porsche 911T / 911E 1969-71 - 91110390101, 91110331101, 91110331300, 91110331500
3
Piston ring set. Porsche 911T / 911E 1969-71
91110390101/1
Product Information
Product Information
Piston ring set. 6 sets per engine. Price is for 1 set.

goetze
GOETZE ref no 08-319500-10

Fits: Porsche 911 T/E 2.2L 1970-71
Sizes: 84x1.5mm / 84x2mm / 84x4mm

Engine codes:
- 911.03
- 911.06
- 911.07
- 911.08

Click 'Zoom in' for large parts diagram.
Diagram Ref No 23.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91110390101
91110390101
91110331101
91110331300
91110331500

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
Also found on these pages
About Piston Rings

Piston Rings – Precision Engine Sealing & Performance for Porsche Models

The piston rings in your Porsche engine are critical components that maintain compression, regulate oil consumption, and ensure efficient combustion. Positioned around the pistons, they create a tight seal between the piston and cylinder wall, keeping combustion gases contained while allowing smooth piston movement.

At Design911, we supply a comprehensive range of piston rings designed for both classic and modern Porsche engines. Manufactured from high-strength, heat-resistant materials, these rings deliver exceptional sealing, reduced friction, and long-term reliability. Whether you’re performing a full engine rebuild or a top-end refresh, our quality piston rings are engineered for perfect fitment and optimum performance.

What Do Piston Rings Do?

Piston rings perform three vital functions within the engine:

  • Sealing the combustion chamber – to prevent gas leakage and maintain compression.
  • Controlling oil consumption – by scraping excess oil from the cylinder walls.
  • Conducting heat – transferring it from the piston to the cylinder wall to prevent overheating.

These rings are essential for maintaining engine efficiency, power output, and longevity. Properly functioning piston rings ensure consistent compression, clean emissions, and smooth performance.

Why Do Piston Rings Fail?

Piston rings are subject to intense heat, pressure, and friction. Over time, these conditions can lead to wear, loss of sealing ability, or even engine damage.

Common Causes of Piston Ring Failure Include:

  • Excessive wear or scoring from poor lubrication or debris.
  • Carbon build-up causing sticking or uneven sealing.
  • Overheating that leads to ring warping or loss of tension.
  • Corrosion or fatigue from oil contamination.
  • Improper installation during rebuilds or maintenance.

Symptoms of worn piston rings include blue exhaust smoke, loss of compression, reduced performance, or excessive oil consumption — all signs that replacement is required.

Why Replace Piston Rings?

Replacing worn or damaged piston rings restores compression, improves combustion efficiency, and protects your Porsche engine from further wear. Our high-performance piston rings are built to withstand extreme conditions, ensuring consistent sealing and reduced friction.

Key Benefits:

  • Restores compression and engine power.
  • Reduces oil consumption and exhaust smoke.
  • Improves fuel efficiency and combustion quality.
  • Constructed from durable, heat- and corrosion-resistant alloys.
  • Direct-fit compatibility for a wide range of Porsche models.
  • Ideal for rebuilds, restorations, or performance upgrades.

Investing in premium-quality piston rings ensures lasting performance, smoother running, and optimal engine reliability.

Highlights:

  • Precision-engineered piston rings for Porsche engines.
  • Restores compression, performance, and oil control.
  • Made from high-strength, wear-resistant materials.
  • Perfect fit for classic and modern Porsche models.
  • Essential for rebuilds and long-term engine health.
  • Ensures smooth, efficient combustion and lower emissions.

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