Subaru OEM R180 Rear Differential (04-18 STI)

2004-2018 STI R-180 REAR DIFFERENTIAL

Brand new, straight from Subaru, R-180 rear differentials.

2004 - 2005 R-180 Specifications

• Part # 27011AA910 (DISCONTINUED)
• 3.90 Gear Ratio
• Mechanical clutch type LSD
• Will only work with 04-05 6 speeds that have the 1:1 reduction gear

2006 R-180 Specifications

• Part # 27011AB020
• 3.545 Gear Ratio
• Mechanical clutch type LSD
• This will work with any 06-14 STI 6 speed that has the 1.1:1 reduction gear. *BE SURE TO CHECK TRANSMISSION CODE BECAUSE EARLY 06 STI'S CAME WITH THE 05 TRANSMISSION.*

2007 - 2014 R-180 Specifications

• Part # 27011AB221
• 3.545 Gear Ratio
• Torsen Style LSD
• Differential Temperature Sensor Now Installed
• This will work with any 06-14 STI 6 speed that has the 1.1:1 reduction gear. *BE SURE TO CHECK TRANSMISSION CODE BECAUSE EARLY 06 STI'S CAME WITH THE 05 TRANSMISSION.*

2015 - 2021 R-180 Specifications

• Part # 27011AB320
• 3.545 Gear Ratio
• Torsen Style LSD
• This should be the exact same as the 07-14 R-180. As of now we cannot see any real differences between the two part numbers. However, anything is possible