Porsche > Boxster 986/987/981 (1997-2016) > Boxster S 986 3.2L 2003-04 > Gearbox / Transmission > Gearbox Parts >

Gearbox Casing / Casing Parts

3 3 3

Gearbox Ring Magnet. Porsche 986 Boxster / 996 Carrera - 6-Speed Manual Transmission

99630180400

Product Information

Gearbox ring magnet.

Fits:
Porsche 986 Boxster / S 2000-04 - Vehicles with 6-speed manual transmission (PR 480)
Porsche 996 Carrera 2 3.6L 2002-05 - Vehicles with 6-speed manual transmission (PR 480)*

Diagram ref. 4.

*NOTE: This part is only applicable to gearboxes with the code G9601, which are found in facelift Carrera 2 models. It is not compatible with Carrera 4 or 4S models.

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99630180400

99630180400

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Gearbox shift arrester Porsche 996 C2/C4, Boxster S 986, 996T, 996 GT2, 996 GT3, 997T, 997 GT2, 997 GT3 997, GT3 RS transmissions.

99630303300/1

Product Information

Redesigned the factory shift arrester with a different profile to allow 2nd gear to engage all the way every time. This will help keep 2nd gear pop outs from occurring without shimming or machining of the gears or changing the detent roller - provided your 2nd gear synchro teeth and shift sleeve are in good condition.

Replaces part 996.303.033.00

Fits all Porsche 996 C2/C4, Boxster S 986, 996T, 996 GT2, 996 GT3, 997T, 997 GT2, 997 GT3 997, GT3 RS transmissions.

G86/20, G96/00, G96/01, G96/30, G96/31, G96/50, G96/88, G96/90, G96/93, G96/96, G96/97, G97/88, G97/96

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99630303300

996.303.033.00

99630303300

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4 4 4 4

Oil pan. Porsche 986 Boxster / 987 Boxster / 987C Cayman / 996 Carrera

98632102502/1

Product Information

This is the Tiptronic transmission oil pan (sometimes referred to as a “gearbox oil pan”), responsible for holding transmission fluid and forming a seal between the transmission’s housing and the fluid reservoir. Made from standard steel, designed to match OEM specifications for fitment and clearance. It features a rust-resistant surface coating and is built to remain warp-free for a durable, secure seal. Gasket product code 98632102502, sump plug, and bolts are not included, meaning you'll need to source or reuse these separately. You will be promoted to buy the fitting kit product code TIPSUMPKIT which is recommended

oematch

Fits:
Porsche 986 Boxster 1997-04 TIPTRONIC
Porsche 987 Boxster MKI 2005-08 TIPTRONIC
Porsche 987C Cayman MKI 2006-08 TIPRTONIC
Porsche 996 Carrera 2 / Carrera 4 >>2001 TIPTRONIC

Common Issues

Many engine oil pans, this transmission oil pan do require a gasket. Leakage Problems: Transmission fluid leaks are the most frequent issue—often from worn or degraded sealant or pan warping.

Ensure bolts are replaced and torque-tightened correctly—typically to around 10.5 ft-lb in a crosshatch pattern—to maintain even sealing pressure.

Warping/Torque Loss: Overheating or repeated torque cycles may cause minor warping, leading to fluid seepage—even if the sealant is properly applied.

Corrosion Potential: Even with rust-resistant coating, the steel construction can become susceptible to corrosion over time, especially around edges or mounting surfaces exposed to moisture.

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

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

98632102502

98632102502

01V321359B

265-860

01V321359A

01V321359

98632102500

98632102502

98632102501

98639701600

94339703900

98639701501

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3 3 3

Output shaft sealing ring. Porsche 996

99911347540/1

Product Information

Shaft Sealing Ring. 40 x 62 x 10.

elring

Fits:
Porsche 996 C4 / C4S 1998-05
Porsche 996 Turbo 2001-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 3.

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99911347540

99911347540

172.630

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3 3 3

Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1

0PB105249

Product Information

Rear main seal (crankshaft oil seal) - 85 x 105 x 11.

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>>
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>>
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>>
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>>

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>>

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5.

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3 3 3

Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1

0PB105249/1

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3 3 3

Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1

0PB105249/4

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99911347640

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99710121200

99710121201

0PB105249

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3 3 3

Transmission case screw plug. Porsche 996 Carrera / 986 Boxster S / 997 GT3

99630323700

Product Information

Transmission case screw plug.

porsche

Fits:
Porsche 996 Carrera 1998-05
Porsche 986 Boxster S 2000-04
Porsche 997 GT3 / GT3 RS 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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About Gearbox Casing / Casing Parts

Porsche Gearbox Casings & Casing Parts | Strength, Precision & Thermal Stability for Reliable Transmission Performance

The gearbox casing is the structural foundation of your Porsche’s transmission system. It houses and supports all internal components — including gears, bearings, shafts, and seals — ensuring correct alignment, strength, and efficient operation. High-quality casing components are essential for maintaining gearbox integrity, preventing leaks, and reducing vibration or mechanical stress.

At Design911, we supply precision-engineered gearbox casings and casing components designed to meet or exceed original performance specifications. Manufactured from high-strength aluminium or magnesium alloys, each casing ensures excellent rigidity, heat dissipation, and dimensional accuracy.

Whether you’re rebuilding a classic 911 transmission, repairing a damaged casing, or upgrading for performance reliability, our range of Porsche gearbox casings and casing parts guarantees strength, fitment precision, and long-term durability.

What Do Gearbox Casings & Casing Parts Do?

The gearbox casing acts as a rigid housing that protects internal components from damage, contamination, and misalignment while maintaining lubrication and temperature control.

Core Functions:

Provides structural support and alignment for all internal gearbox components.
Protects gears, shafts, and bearings from debris and external damage.
Maintains correct oil levels and internal pressure.
Ensures efficient heat dissipation for optimal transmission operation.
Prevents leaks through integrated seals and machined joints.

Without a properly functioning casing, gearbox alignment and performance can degrade — leading to premature wear, oil leaks, and even transmission failure.

Why Do Gearbox Casings & Components Fail or Get Damaged?

Gearbox casings are exposed to mechanical stress, vibration, and heat over time, which can cause fatigue, cracking, or oil leaks.

Common Causes of Failure Include:

Cracks or fractures from impact or over-torqued bolts.
Corrosion or oxidation, particularly on older magnesium casings.
Warping due to overheating or poor heat dissipation.
Damaged or worn sealing surfaces causing oil leaks.
Incorrect assembly or misalignment during installation.

When the casing or its mating surfaces fail, it can cause oil leakage, misaligned gears, excessive noise, or internal component wear — compromising gearbox performance and reliability.

Why Replace Your Porsche Gearbox Casing or Casing Parts?

Replacing a damaged or worn gearbox casing ensures structural integrity, correct alignment, and proper sealing — vital for transmission efficiency and performance. Upgraded or remanufactured casings also enhance durability and thermal control in high-performance applications.

Key Benefits:

Restores proper gearbox alignment and internal balance.
Prevents oil leaks and contamination of internal components.
Improves heat management and mechanical strength.
Reduces vibration and driveline noise.
Ensures long-term reliability during rebuilds or performance upgrades.
Available for manual, automatic, and PDK Porsche transmissions.

A high-quality gearbox casing or replacement part is essential during transmission rebuilds to maintain correct tolerances and optimal drivetrain function.

Highlights

Precision Porsche gearbox casings and casing parts.
Manufactured from high-strength aluminium or magnesium alloys.
Perfect fitment for Porsche 911, Cayman, Boxster, and classic models.
Designed for strength, rigidity, and long-term reliability.
Restores transmission efficiency and structural integrity.
Ideal for rebuilds, repairs, or performance transmission upgrades.

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Gearbox Casing / Casing Parts

Gearbox Casing / Casing Parts