PDM Transmission Sleeve Kit (TSK4) for Subaru WRX STI Manufacturer: SubaruOriginal OEM Part Number: 30502AA130Supersession: 30502AA080PDMUSA Part Number: TSK4Replacement Bearing: TSK4-B (sold separately)Transmission Type: 6-Speed Manual (Push-Type Clutch) ✅ Vehicle Compatibility & Chassis Codes 🌎 U.S. Market Make Model Years Chassis Codes Engine Options Subaru WRX STI 2004–2021 GD / GR / GV / VA 2.5L Turbocharged (EJ257) 🌍 Global Market Make Model Years Chassis Codes Engine Options Subaru WRX STI 2004–2021 GDB / GRB / GVB / VAB 2.0L / 2.5L Turbocharged 📌 Note: Confirm transmission type and bearing surface before ordering. Applicable only to push-type clutch systems. 💪 What’s in the Kit? CNC-machined stainless steel sleeve Oversized clutch release bearing (sleeve-specific) Bearing clip Hardware High-temp specialty grease Detailed installation instructions ⚠️ Important: The included bearing clip must be used. Omission will void the warranty and may result in premature failure. 🔧 Symptoms Fixed by the TSK4 Kit Clutch chatter or shudder Excessive noise during clutch operation Sticky or stiff clutch pedal Rough or inconsistent pedal feel Premature wear or failure of clutch components Surface wear on the aluminum transmission case extension ⚠️ The Problem with OEM Design Subaru’s original cast aluminum bearing sleeve design wears out prematurely. This creates: Vibration and excessive clutch noise Clutch misalignment and release issues Ongoing damage to transmission case components ✅ The TSK4 Kit Advantage The TSK4 is a long-term solution that addresses the underlying issue: 🛡️ Durable stainless steel sleeve eliminates future wear 🔧 No machining required; installs in minutes ⏳ Extends clutch and transmission lifespan ♻️ Fully reversible for service or upgrades 🌍 Trusted Across Global Markets Relied upon by Subaru performance shops, rally teams, and STI enthusiasts worldwide. 🔍 Alternate Listings (Search & Compatibility) 30502AA130 / 30502AA080TSK4 Subaru Sleeve KitWRX STI Clutch Snout RepairSubaru 6-Speed Push-Type Clutch FixSubaru STI Transmission Sleeve Upgrade
