Compressors

A/C Compressor Spacer Sleeve. 
The Genuine Porsche A/C Compressor Spacer Sleeve (Part Number 99612610253) is a precision-engineered mounting component designed to ensure correct positioning, alignment and secure installation of the air conditioning compressor within the engine assembly.

Fits:

• Porsche Boxster 987 2.7L 2005-08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche 996 C2 3.6L 2004-2005
• Porsche 996 C4 3.6L 2004-2005
• Porsche 996 C4S 3.6L 2004-2005
• 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  

Diagram Ref No 4

Manufactured to Porsche's original equipment specifications, this spacer sleeve maintains the correct distance between the A/C compressor and its mounting points, helping ensure that the compressor is securely attached and correctly aligned with the engine's auxiliary drive belt system.

Although relatively small, the compressor spacer sleeve plays an important role in maintaining the structural integrity of the air conditioning compressor installation.

The air conditioning compressor operates under continuous mechanical loads, engine vibration and temperature fluctuations. Correct mounting alignment is essential to prevent excessive stress on the compressor housing, mounting bolts and associated drive components.

Over time, a spacer sleeve may become damaged, distorted, corroded or lost during previous compressor repairs or replacement. An incorrectly fitted or missing spacer can affect compressor positioning, potentially leading to unwanted movement, vibration, mounting stress and accessory drive belt alignment problems.

Replacing a damaged or missing spacer sleeve with a Genuine Porsche component helps restore the correct factory mounting arrangement, supporting reliable compressor operation and protecting surrounding components.

Ideal for air conditioning compressor repairs, mounting bracket maintenance and replacement during A/C system servicing, this genuine replacement component provides original equipment fitment and dependable performance.

What This Product Does:
The A/C compressor spacer sleeve is a mechanical mounting component that helps maintain the correct installation geometry of the air conditioning compressor.

Its primary functions include:

• Maintains Correct Compressor Spacing: Establishes the specified distance between the air conditioning compressor and its mounting surfaces.
• Supports Accurate Compressor Alignment: Helps position the compressor correctly in relation to the engine and associated mounting components.
• Provides Mounting Bolt Support: Works with the compressor mounting hardware to maintain the correct installation arrangement.
• Helps Maintain Pulley Alignment: Supports correct positioning of the compressor pulley relative to the engine's auxiliary drive belt.
• Reduces Excessive Mounting Stress: Helps prevent incorrect clamping forces and unnecessary strain on the compressor housing and mounting points.
• Prevents Unwanted Compressor Movement: Contributes to a securely mounted compressor assembly when all associated hardware is correctly installed.
• Supports Stable Compressor Operation: Helps maintain a consistent mounting position despite normal engine vibration.
• Maintains Original Equipment Fitment: Ensures the compressor is installed using the correct factory-specified spacing arrangement.
• Protects Associated Components: Helps reduce the risk of mechanical interference and unnecessary wear caused by incorrect compressor positioning.

Symptoms Of Wear Or Failure:
The A/C compressor spacer sleeve is a non-moving component and does not normally experience the same wear as rotating or rubber components.

However, damage, corrosion, incorrect installation or missing mounting hardware can affect its performance.

Common symptoms of a damaged or missing compressor spacer sleeve include:

• Incorrect Compressor Alignment: The air conditioning compressor appears tilted or incorrectly positioned relative to its mounting bracket.
• Loose Compressor Mounting: The compressor may move or vibrate because the mounting assembly cannot be secured correctly.
• Visible Spacer Damage: The sleeve may show signs of crushing, deformation, cracking or physical deterioration.
• Damaged Mounting Hardware: Mounting bolts may become loose, incorrectly seated or difficult to tighten to the specified torque.
• Excessive Compressor Vibration: Unusual vibration may be transmitted through the compressor mounting assembly.
• Unusual Engine Bay Noises: Rattling, knocking or vibration-related noises may occur if the compressor is inadequately secured.
• Accessory Belt Misalignment: Incorrect compressor positioning may cause the drive belt to run unevenly across the pulley.
• Premature Drive Belt Wear: Abnormal pulley alignment may contribute to belt edge wear, fraying or deterioration.
• Belt Squealing or Chirping: Misalignment may produce unwanted belt noise during engine operation.
• Damage Around Mounting Points: Cracks or stress marks may appear around the compressor mounting lugs or supporting brackets.
• Missing Spacer Sleeve: Previous compressor replacement or servicing may have resulted in the original sleeve being misplaced or omitted.

Why Replacement Matters:
Replacing a damaged, distorted or missing compressor spacer sleeve helps ensure the air conditioning compressor remains correctly positioned and securely mounted to the engine.

Key Benefits of Replacement:

• Restores Correct Compressor Alignment: Helps return the compressor to its factory-specified mounting position.
• Maintains Secure Installation: Supports proper clamping of the compressor mounting hardware.
• Protects Compressor Mounting Points: Helps reduce excessive mechanical stress on the compressor housing and mounting brackets.
• Supports Correct Drive Belt Alignment: Helps maintain the intended relationship between the compressor pulley and auxiliary drive belt.
• Reduces Unwanted Vibration: Contributes to a stable compressor installation when all mounting components are in good condition.
• Helps Prevent Premature Belt Wear: Reduces the risk of alignment-related wear caused by incorrect compressor positioning.
• Protects Associated Components: Helps minimise unnecessary strain on mounting bolts, brackets and adjacent components.
• Genuine Porsche Quality: Manufactured to the original equipment specifications for the relevant application.
• Correct Original Equipment Fitment: Provides the required mounting dimensions without improvised spacers or modifications.
• Ideal During Compressor Replacement: Ensures the correct mounting arrangement is restored when installing a new or refurbished A/C compressor.
• Supports Long-Term Reliability: Helps preserve the mechanical integrity of the compressor mounting assembly.
• Cost-Effective Preventative Maintenance: Replacing a damaged spacer may help prevent more expensive repairs caused by mounting misalignment.

Although the compressor spacer sleeve is a small component, its correct installation is important for the reliability and mechanical stability of the air conditioning system.

A missing or incorrectly sized spacer can prevent the compressor from being secured as Porsche intended, potentially causing vibration, belt alignment issues and stress around the mounting points.

Replacing the component with a Genuine Porsche spacer sleeve helps restore the original mounting geometry and maintain the dependable operation of the compressor assembly.

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

99612610253

The product you are viewing cross references to these numbers

A/C Compressor Spacer Sleeve.
The Genuine Porsche A/C Compressor Spacer Sleeve 99612610271 is a precision mounting spacer used when securing the air-conditioning compressor to the engine on selected Porsche 996 and 997 high-performance models.

Fits:

• Porsche 996 TURBO 2000-05
• Porsche 996 GT2 2001-05
• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 996 GT3 RS 2003-04
• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MK1 GT3 / GT3 RS 2007-09
• Porsche 997 MK1 GT2 2007-09
• Porsche 997 MKII GT3 / GT3 RS 2010-11  

Diagram Ref No 4

Installed between the relevant compressor mounting surfaces, the spacer establishes the correct distance required for the compressor mounting bolt and keeps the compressor correctly positioned within its support arrangement.

Although it is a small component, accurate compressor positioning is important.

The A/C compressor is mechanically driven by the engine's accessory belt and must sit securely and squarely in relation to its mounting points and drive pulley.

A missing, damaged, distorted or incorrect spacer can prevent the compressor from being clamped correctly. This may contribute to compressor movement, mounting stress, accessory-belt alignment problems, abnormal noise or damage to the compressor mounting hardware.

Replacing a missing or damaged spacer restores the correct factory mounting geometry and allows the compressor to be secured as Porsche intended.

What This Product Does:
The A/C Compressor Spacer Sleeve establishes the correct spacing within the compressor mounting assembly.

Its main functions are to:

• Maintain the specified distance between compressor mounting points.
• Support correct compressor positioning.
• Provide the correct spacing for the compressor mounting bolt.
• Help keep the compressor square to its mounting bracket.
• Support correct accessory-belt and pulley alignment.
• Prevent inappropriate compression or distortion of the mounting assembly.
• Help distribute mounting loads correctly.
• Replace a missing, damaged or incorrect original spacer.
• Restore the factory compressor installation.

Symptoms Of Wear Or Failure:
Because the spacer has no moving parts, failure generally appears as physical damage or symptoms caused by incorrect compressor mounting.

Possible signs include:

• Spacer missing after previous compressor work.
• Sleeve visibly crushed or distorted.
• Corrosion or mechanical damage.
• Compressor not sitting squarely.
• Compressor movement at the mounting point.
• Mounting bolt difficult to tighten correctly.
• Abnormal gap between compressor and bracket.
• Accessory belt running out of alignment.
• Belt edge wear.
• Belt squeal.
• Chirping or rubbing noise.
• Compressor vibration.
• Cracked or stressed compressor mounting lug.
• Repeated loosening of compressor mounting hardware.

Why Replacement Matters:
Replacing a missing or damaged A/C Compressor Spacer Sleeve helps restore:

• Correct compressor mounting geometry.
• Secure compressor installation.
• Proper mounting-bolt clamping.
• Correct pulley alignment.
• Reliable accessory-belt tracking.
• Reduced mounting stress.
• Factory-standard installation.

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

99612610271

The product you are viewing cross references to these numbers

Air con compressor (New).

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>
Porsche 996 1998-05
Porsche 997 MKI 2005-08

Click picture for large parts diagram.
Diagram ref no 1.

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

99612601152

The product you are viewing cross references to these numbers

Air con compressor (New).
Restore perfect climate control in your Porsche with this OE Match air-conditioning compressor. A high-quality replacement designed to match the original Porsche specifications in form, fit, and performance. Precision-engineered for Porsche 996 and Boxster (986) models, this compressor delivers reliable refrigerant compression and consistent cooling performance. Built using robust materials and modern manufacturing standards, it ensures smooth, quiet operation and long-lasting durability under all driving conditions. Whether you’re replacing a failed unit or refreshing your A/C system, this OE Match compressor offers a cost-effective, factory-quality solution that installs directly with no modifications required.

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>
Porsche 996 1998-05
Porsche 997 MKI 2005-08

Diagram ref no 1.

Why & When to Replace:

• A/C blowing warm or inconsistent air
• Compressor clutch not engaging or making noise
• Loss of refrigerant or visible leakage
• During system overhaul or refrigerant conversion service

Replacing with an OE Match compressor restores reliable cooling, reduces system noise, and protects the rest of the A/C components from damage caused by a failing unit.

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

99612601152

The product you are viewing cross references to these numbers

Air con compressor (New).

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>
Porsche 996 1998-05
Porsche 997 MKI 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 1.

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

99612601152

The product you are viewing cross references to these numbers

Air con compressor mounting spacer.

Fits:
Porsche 986 Boxster 1997-04
Porsche 987C Cayman 2005-08
Porsche 996 Carrera >>2003

Click 'Zoom in' fr large parts diagram.
Diagram ref no 4

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

99612610252

The product you are viewing cross references to these numbers

Air con compressor sealing ring.

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 Carrera / Turbo / GT3 1998-04
Porsche 997 Carrera / Turbo 2005-09

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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

99657392602

The product you are viewing cross references to these numbers