7-Speed Dual-Clutch Transmission Assembly for 2016-2018 Hyundai Tucson

A quick look at your own vehicle makes sure the right transmission shows up:

• Confirm the engine is a 1.6L Turbocharged engine (check emissions label under the hood or the 8th digit of the VIN).
• Confirm the vehicle is All-Wheel Drive (AWD) by checking for a rear driveshaft and rear differential.
• Locate the metal identification tag on the bellhousing of the current transmission to verify it reads D7UF1 and matches OEM part numbers 43000-2D050 or 43000-2D055.

What the install really takes — plan and budget with confidence:

Special tools this job needs:

• Dual Clutch Remover/Installer (SST 09430-C1180 / 09430-2A240)
• Actuator Fixing Jig & Motor Adjustment tool (SST 09430-2A100 / 09430-2A200)
• Professional diagnostic scan tool (Hyundai GDS-M or equivalent)

Budget for these consumables at install:

• SAE 70W API GL-4 gear oil (Hyundai/Kia DCTF 70W, SK HK SYN DCTF 70W, or Shell Spirax S6 GHME 70W)
• Input shaft seals
• Axle shaft (half-shaft) seals
• High-pressure spline grease
• Transmission cooler line flush

What your vehicle’s computers will need after the swap:

What’s involved: TCM Adaptive Relearn and Clutch Actuator Calibration

A 'DCT Learning Function' or 'Adaptive Relearn' is mandatory after installing a replacement transmission, clutch, or actuator. This procedure uses a dealer-level scan tool to teach the TCM the exact engagement points of the new clutches and the positions of the gear actuators. Skipping this step will result in poor shifting, error codes, and potential damage to the new unit.

Pro tips for a smooth first start-up — hand them to whoever does the install:

• Clutch Actuator Rod Adjustment: When installing the clutch actuator, the pushrod lengths must be precisely adjusted. Older manuals specify 72mm, but updated guides warn that on newer/revised actuators, this must be set to 78mm (or 71.5-72.5mm depending on the specific actuator revision) or the TCM relearn will fail.
• Dual-Mass Flywheel Inspection: The Tucson 1.6T uses a dual-mass flywheel (DMF). Inspect the DMF for excessive play, grease leakage, or heat scoring before bolting up the replacement transmission. A worn DMF causes metallic rattling and can ruin the new clutch pack.
• AWD Transfer Case (PTU) Alignment: Ensure the splines on the intermediate shaft and PTU are clean, greased with high-pressure spline grease, and perfectly aligned during installation to prevent spline stripping.
• No Torque Converter: This is a dry DCT. Do not look for a torque converter or try to fill it with standard ATF. It uses a dry dual-clutch pack and specific 70W GL-4 gear oil.

Easy to get right once you know them:

• Ordering FWD instead of AWD: Buying a FWD version of the D7UF1 (part numbers ending in 2D010/2D015) for an AWD vehicle. The FWD casing lacks the mounting bosses and output shaft opening for the AWD transfer case.
• Skipping the Calibration / Relearn: Attempting to drive the vehicle without performing the electronic calibration, resulting in harsh shifting, slipping, or limp mode.
• Using Standard ATF: Mistaking the DCT for a traditional automatic and filling it with standard automatic transmission fluid (ATF), which will destroy the synchronizers and gears.
• Ignoring the Flywheel: Reusing a worn dual-mass flywheel, which can produce noises and vibrations easily mistaken for a transmission problem.
• Not Checking for Software Updates: Installing the transmission without ensuring the vehicle's TCM has received the crucial NHTSA recall software update (Campaign 149).

Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer: