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Introducing our newest side cover for Porsche Boxster and Cayman 987 6 speed transmissions. Machined in house from 6061 T6 Aluminium.

Fits all models 2005 on* G87.20, G87.21, G87.10

*Let us know which differential you are using. We may have to modify the supplied bearing.

Billet aluminium shift fork is a direct replacement for the fork on assembly part number 986.303.015.00.

Fits all Boxster S 6 speed transaxles G86.2

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98630301500

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Billet aluminium shift fork is a direct replacement for the fork on assembly part number 986.303.013.00.

Fits all Boxster 6 speed transaxles G86.20

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98630301300

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Billet aluminium 1st to 2nd gear shift fork is a direct replacement for the fork on assemblies 996.303.010.00 and 986.303.010.00.

Fits
Porsche 986 Boxster S 2000-04 (6 speed)
Porsche 996 1999-2004

G86.20, G96.00, G96.01, G96.30

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99630301001

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Replacing part for 911.301.221.00 (no longer available). Made in house from billet 6061 to correct tolerances.

Genuine Porsche bearings are recommended

Fits 911/912 64-69.5 aluminium case 901 transmissions.

90130122100, 901-301-221-00

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90130122100

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Fits all Porsche 901/911/912 aluminum case transmissions.

Precision machined from 4130 Chromoly
Better supports both main and pinion shaft bearings
Improved design captures the main shaft bearing 45% more than OEM
Substantial clearance provided for even non-standard tall 1st gear ratios
Perfect fit for bearings and assembly
Much stronger than the original cast part

Replaces part 901.301.251.01 tensioning plate

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90130125101

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The original Porsche 930 transmission differential side cover is made of cast aluminum, not to mention it's pretty thin.
Under load there can be a tremendous force applied to this cover, and it can break, sometimes resulting in a damaged ring and pinion-or worse.
Upgrading to a billet side plate will add significant strength and increased reliability to the differential section.

Our design features include:

A ring gear thrust bolt to reduce ring gear deflection under load
Ports that can be used for an oil cooling system
Cross drilled oil passageways for the differential bearing

Comes with (3) 3/4 - 16 O ring plugs.

Replaces part 930.301.311.02

930/30, 930/33, 930/34, 930/36, 930/37, 930/67

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93030131102

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This update will allow for use of the late style 915 main shaft seal and o-ring on early transmissions ('72-'75) where the seal installs from the inside and the guide tube is not removable.
The update is a also good repair for those whom have loose, damaged or worn out guide tubes.

** This requires machining to fit

The original is machined off and a custom steel tube is fitted. It's further retained from the inside of the diff case with a high quality snap ring and sealed with the factory o-ring.

Our spray bar, made from stainless steel, is an excellent reproduction of the factory RSR spray bar. It allows for gear lube (presumably from a remote pump and cooler) to be returned directly to the gear mesh, including the final drive gears.

** This requires machining to the front "nose cone" housing.

We have updated our 915 spray bar kit to include an improved oil return port that will not interfere with the torsion bar tube and allows for better routing of the oil return line.

A direct replacement for part 915.303.111.00 and 930.303.110.02.

Machined from 6061 T6 aluminium; features a replaceable threaded insert for the supplied bolt.

Fits all Porsche 915 transaxles 72-86 and 930 4 speed transaxles 76-88.

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91530311100

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Billet aluminium 5th/6th shift selector fork.

Fits all 993 6 speed transaxles C2/C4/T

G50/20/21; G64/21/21/51

Replaces part 950 303 116 00

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95030311600

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The factory cast aluminum 993 fork suffers from an inherent weakness in which the steel insert that the reverse lever actuates - is prone to failure.
The cast steel RS fork does not have this issue but it's not a billet steel one like ours...and it's less expensive.

Fits all G50 5 speed transmissions '87-'94 and all G50 6 speed transmissions '95-'98 including C4, RS, Turbo and RSR models.

(G50/00, G50/01, G50/50, G50/03, G50/04, G50/05, G50/52, G64/00, G64/01, G50/20, G50/21, G50/31, G50/31, G50/33, G64/51, G64/52)

Replaces part 950.303.113.04, 950.303.103.00, 950.303.113.04, 950.303.103.06

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95030311304

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Billet aluminum shift fork is of motorsport quality and is an ideal replacement for street or track.

Proper rail to fork interference fit; maintains correct tolerances
Improved design reduces the chance of stripped threads
Uses factory torque specs and our supplied hardware

Fits all 996T, 996 & 997 GT2 & GT3 including RS.

G96/50, G96/88, G96/90, G96/93, G96/96, G97/88, G97/90, G97/92

Replaces part 996.303.115.50

Fits:
Porsche 996 Turbo / Turbo GT2 2001-05
Porsche 997 Turbo GT2 2008-09
Porsche 997 GT2 RS 2011
Porsche 996 GT3 2001-05
Porsche 997 GT3 / 997 GT3 RS 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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99630311550

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Our billet aluminum differential side cover is much stronger than the factory magnesium counterpart and will help reduce gear deflection under load.

Our version uses the larger 930 turbo taper bearing and features a replaceable clutch cable bracket.

You must use differential bearing 999.059.064.00

You can use the stock studs, axle seal, o-ring and factory preload setting.

Fits Porsche 911 70-71 side cover with clutch cable bracket for pull clutch

Replaces part: 901.301.311.12

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90130131112

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Our aluminum side cover fits much more precisely and will not "float" - causing gear misalignment - like the factory cast ones do.
Also incorporated is a differential bearing oiling provision.

Fits all Porsche 996 and Boxster S 986 6 speed manual transmissions.

G86/20, G96/00, G96/01, G96/30, G96/31

Replaces part 996.301.312.00 or 986.301.312.00

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99630131200

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It's not uncommon for the original thrust washer on the main shaft between 3rd and 6th gear to fail causing serious damage inside your transmission. We now offer a stronger billet thrust washer with specially designed oil grooves which promotes lubrication to 3rd and 6th gear needle cage bearings.

Fits all Porsche 996 and Boxster S 986 transmissions. G86/20, G96/00, G96/01, G96/30, G96/31

Replaces part 996.302.296.00

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99630229600

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