Reconditioned Suzuki Jimny Gearbox

Jimny petrol from 1998 to 2018: two engine codes for the same 5-speed manual gearbox?

Not quite. The Jimny 1.3 and the Jimny 1.3 16V both share a 5-speed manual gearbox, but the engine codes G13BB and M13A correspond to two distinct generations of the engine block, with pairings that are not identical depending on the engine variant. The G13BB is fitted to both the 1.3 and the 1.3 16V, whereas the M13A is exclusive to the 1.3 — this detail directly determines the compatibility of the gearbox to be reconditioned.

G13BB and M13A: two generations, gearboxes not to be confused

The G13BB is the engine block fitted to the first Jimnys sold in France from 1998. The M13A succeeded it on the 1.3, and several gearbox variants exist for this code depending on the model year and vehicle configuration — references JIMNY-M13A-FR-2-5V, JIMNY-M13A-FR-84-5V and JIMNY-M13A-FR-86-5V illustrate these variants. Before taking any steps, it is therefore essential to check the engine code stamped on the block rather than relying solely on the engine capacity or the vehicle's year.

What this collection covers and how it works

All gearboxes listed here are available as a rebuild of your own unit: your gearbox is sent in, reconditioned, and then returned to you. This option is particularly well suited to Jimnys whose gearbox shows symptoms of clunking on downshifts or difficulty engaging 2nd gear — common complaints on vehicles used most heavily off-road, a type of use that places greater demands on the transmission's synchromesh rings and bearings.