Porsche

Porsche G87.21

From the Gearbox Wiki, the reference for people who still shift their own.

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Porsche G87.21 is a manual gearbox from Porsche. The Society has 2 vehicles on file with it, 2 with a source we opened and 0 still leads.

Porsche

Vehicle	Years	Shift pattern	Gearbox source	Members
Porsche Boxster S (986) / 987 six-speed 986 S / 987 Boxster S and 987 six-speed manual ^[1] Applies to: 987 Boxster S / Cayman S	Years not confirmed	6 speed, reverse top left	Corroborated
Porsche Cayman / Boxster 987.1 six-speed Boxster S, Cayman S, and base cars with 6-speed option ^[2] Applies to: Boxster S MY2007-08; Cayman S MY2006-08	2005-2008	6 speed, reverse top left	Verified

Caveats and conflicts (1)

Forum post. Also mentions G87/200 introduced 2005 for the 3.2 Boxster. 986 S code not given.

Forum. Porsche Club GB thread: 'a 6-speed manual (Getrag 466) is the default for the S (G87.21)'. [link]
Parts catalog. Type tables: CAYMAN "S" G87.21 6-GANG MJ 6, 7, 8; BOXSTER "S" G87.21 MJ 7, 8. [link]

Categories: Gearboxes | Porsche

This page was last edited on November 11, 2026. Gearbox codes change by year, engine and market. Send a correction.