The 2006 Nissan Sentra offered two main transmissions for most trims: a five-speed manual or a four-speed automatic. The high-performance SE-R variant used a six-speed manual. There was no factory CVT option in 2006.
The 2006 Sentra sits in the B15 generation (2000–2006) and came with either a 1.8-liter inline-four or a 2.5-liter inline-four, depending on trim. Transmission choices varied by configuration, with manual and automatic options available on most non-special trims and a six-speed manual reserved for the sportier SE-R models. CVT/Xtronic transmissions were not offered in the 2006 model year for Sentra.
Transmission options by trim
Here is a concise breakdown of the transmission options you could encounter across the 2006 Sentra lineup.
- 5-speed manual transmission (5MT): available on most trims with manual preference or performance-oriented versions.
- 4-speed automatic transmission (4AT): offered as an automatic option on most trims.
- 6-speed manual transmission (6MT): used on the Sentra SE-R performance variant.
Note: The 2006 Sentra did not offer a CVT/Xtronic transmission. CVT became available in later model years on some Sentra trims.
SE-R variant specifics
The 2006 Sentra SE-R continued Nissan’s tradition of a manual-focused performance model, pairing the 2.5-liter QR25DE engine with a six-speed manual gearbox designed for more aggressive driving and precise gearing.
Summary
In summary, for the 2006 Sentra lineup, most buyers encountered either a 5-speed manual or a 4-speed automatic, with the SE-R sport variant offering a 6-speed manual. CVT was not available in 2006.