2015 Subaru Impreza WRX 6-Speed Manual Transmission

2015 Subaru WRX Manual Transmission for Sale, 6-Speed Used Gearbox, Low Mileage

Key Features

• Low mileage unit, under 80,000 miles verified
• All gears engage cleanly, no grinding or pop-outs
• Synchros inspected on every unit
• No unusual noise during gear engagement testing
• 6-month warranty against mechanical defects
• Ships from Cleveland, Ohio to all 50 states
• Most orders processed and shipped within 1 to 3 business days

2015 WRX Manual Transmission in Stock at McClain Auto Part

The 2015 Subaru WRX manual transmission is a purpose-built 6-speed gearbox designed to work with the AWD drivetrain and turbocharged FA20DIT engine that makes the WRX what it is. When one of these transmissions needs replacing, WRX owners are specific about what they want. They want the OEM gearbox, verified mileage, and someone who actually knows what they are selling.

At McClain Auto Part we have been sourcing and selling used drivetrains since 2009. The WRX 6-speed is one of our most requested import transmissions and we treat it accordingly. We know the common failure points, we know what a healthy unit feels like, and we inspect every one before it ships.

Most buyers come to us for one of a few reasons. Worn synchros from aggressive driving. Third gear grinding after high mileage use. A gearbox that took damage from a missed shift or a hard launch. Some buyers are doing a full drivetrain rebuild and want a clean low mileage core to start from. Whatever the situation, we stock verified units and back every sale with a 6-month warranty.

What Makes the 2015 WRX 6-Speed Transmission Worth Buying

The WRX 6MT is not a generic manual gearbox. It is designed specifically for the WRX AWD platform and the power delivery of a turbocharged four-cylinder. The gear ratios are calibrated for performance driving. The engagement feel is direct and mechanical in a way that automatic or CVT alternatives simply do not replicate.

Subaru WRX owners who have driven the manual do not want to replace it with anything else when it fails. They want the same gearbox back under the car. An OEM used WRX manual transmission with verified low mileage and a clean inspection is exactly what that buyer needs.

The 2015 WRX specifically uses a revised transmission compared to earlier STI-platform gearboxes. It is matched to the FA20DIT engine and the symmetrical AWD system. Compatibility matters on this platform. A transmission from a different WRX generation or trim does not always swap cleanly. We sort that out before anything ships.

Transmission Specifications

2015 Subaru WRX 6-Speed Manual Transmission, General Specifications

• Transmission Type: 6-speed manual, 6MT
• Configuration: Longitudinal, rear wheel torque split via center differential
• AWD Compatibility: Subaru Symmetrical AWD, active torque split
• Clutch System: Hydraulic clutch actuation
• Factory Application: 2015 Subaru WRX, FA20DIT turbocharged engine
• Final Drive Ratio: Approximately 4.111:1
• Gear Ratios: 1st 3.636, 2nd 2.375, 3rd 1.761, 4th 1.346, 5th 1.000, 6th 0.800, Reverse 3.545
• Turbocharged Engine Compatibility: Yes, matched to FA20DIT application
• Transmission Code: TR690

Specifications may vary slightly depending on trim level and production date. Call us with your VIN and transmission code before ordering to confirm an exact match.

How We Inspect Every WRX Transmission Before It Ships

A manual transmission inspection is not just a visual pass. We go through every unit at our Cleveland facility before it ships because a gearbox that grinds on arrival creates problems for everyone.

Our Inspection Process

• Full visual inspection of the transmission case for cracks, impact damage, and fluid leaks
• All six forward gears and reverse engaged and tested for clean entry and exit
• Synchro condition assessed through gear engagement feel and resistance testing
• No grinding, no popping out of gear, no unusual resistance confirmed on every unit
• Transmission fluid inspected for metal contamination and condition
• Input shaft and output shaft checked for play and bearing noise
• Mileage verified against donor vehicle records
• External sensors and switch ports inspected for damage

We pay specific attention to third and second gear synchros on WRX transmissions. These are the gears that show wear first on units that were driven hard or shifted aggressively. If there is any doubt about synchro condition the unit does not ship.

Vehicle Compatibility

Primary Application

• 2015 Subaru WRX, FA20DIT engine, manual transmission equipped models

Nearby Year Compatibility

The 2015 WRX transmission may be compatible with certain 2014 and 2016 WRX models depending on the specific transmission code and final drive ratio. This is not a guaranteed cross-year swap without verification.

Before ordering call us with your VIN, your current transmission code, and your final drive ratio. The WRX drivetrain is precise and a mismatch in final drive ratio between the transmission and rear differential causes drivability issues. Five minutes of verification before the order saves a significant amount of trouble.

Why WRX Transmissions Get Replaced

This is one of the most common questions we get from WRX buyers and it is worth addressing directly. The WRX 6MT is a capable gearbox but it is not indestructible under hard use.

Common Reasons Buyers Need a Replacement

Synchro wear is the most common issue. The 2015 WRX transmission was designed for performance driving but synchros wear faster under repeated aggressive shifting, high RPM entries, and track use. Third gear is typically the first to show it.

Gear grinding on downshifts usually points to synchro wear or driver technique issues that accelerated the wear. Either way the result is the same. The transmission needs replacing before the grinding causes further internal damage.

Clutch-related damage sometimes affects the transmission input shaft or shift forks when a clutch failure goes unaddressed. Buyers who ignored clutch wear for too long sometimes find the transmission absorbed some of the damage.

High mileage wear is straightforward. A WRX with 120,000 hard miles on the original gearbox is simply due for a fresh unit.

Warranty

Every WRX manual transmission we sell comes with a 6-month warranty covering internal mechanical defects. If the transmission develops a covered mechanical failure within that period, contact our team. We review the situation and work toward a fair resolution. Replacement unit, credit, or repair guidance depending on what happened.

James McClain has been honoring warranty claims since 2009. We are not going to look for a technicality to avoid a legitimate claim. If it failed because of something on our end, we take care of it.

Shipping

We ship from Cleveland, Ohio to all 50 states. The WRX transmission ships on a freight pallet or in a heavy-duty crate depending on destination, fully secured and protected for transit. Most orders are processed and ready to ship within 1 to 3 business days.

You receive a tracking number as soon as the unit leaves our facility.

Why Buyers Choose McClain Auto Part

Over 15 years in business. More than 10,000 drivetrain components shipped to mechanics, shops, and vehicle owners across the country. Rated 4.9 out of 5 stars across 800+ verified Google reviews. Founded by James McClain in Cleveland, Ohio in 2009.

We are not a listing service. Every transmission we sell is physically in our Cleveland warehouse, inspected by our team, and ready to ship when you order it. When you call us you are talking to someone who understands the WRX drivetrain and can give you a straight answer about compatibility and condition.

A customer who ordered a WRX transmission from us said: “Ordered a 6-speed for my 2015 WRX after the synchros went on third. Showed up exactly as described, shifted clean on the bench test before install, no issues after six months of daily driving. These guys know their stuff.”

Frequently Asked Questions

Does This Transmission Fit All 2015 WRX Models?

The 2015 WRX with the FA20DIT engine and manual transmission is the primary application. Not all WRX trims came with a manual gearbox. Call us with your VIN and transmission code before ordering and we confirm fitment for your exact vehicle.

Is the Transmission Tested Before It Ships?

Yes. Every unit goes through gear engagement testing on all six forward gears and reverse, synchro condition assessment, visual inspection of the case and shafts, and fluid condition check at our Cleveland facility before packaging.

Does It Include the Clutch or Shifter?

No. The clutch assembly and shifter are not included unless specifically confirmed at the time of order. This is a transmission unit only. Call us if you need to confirm exactly what is included with the specific unit we have in stock.

How Many Miles Are on This Transmission?

Under 80,000 miles, verified from donor vehicle records. Most of our current WRX transmission inventory comes in lower than that. We give you the exact mileage before you commit to the order.

Is Shipping Available Nationwide?

Yes. We ship to all 50 states from our Cleveland, Ohio warehouse. Most orders ship within 1 to 3 business days and you receive a tracking number on dispatch.

What Does the Warranty Cover?

Six months from purchase against internal mechanical defects. If something fails that is on our end, contact us and we work it out. The warranty covers the transmission itself, not clutch components, installation labor, or damage caused by improper installation or maintenance after delivery.

Order Your 2015 WRX Manual Transmission Today

Clean low mileage WRX 6-speed transmissions do not stay in inventory long. WRX owners who need a direct replacement and builders sourcing a clean drivetrain core both come to us for this unit regularly.

If you have been looking for a used 2015 WRX manual transmission from a seller who actually knows the platform, call us, email us, or place your order now. We confirm mileage, transmission code, final drive ratio, and fitment before anything ships.

McClain Auto Part. Cleveland, Ohio. In business since 2009. 10,000+ components shipped. 4.9 stars on Google. 6-month warranty on every unit we sell.