PDM (TSK4) Transmission Sleeve Kit - Subaru

PDM Transmission Sleeve Kit (TSK4) for Subaru WRX STI

Manufacturer: Subaru
Original OEM Part Number: 30502AA130
Supersession: 30502AA080
PDMUSA Part Number: TSK4
Replacement Bearing: TSK4-B (sold separately)
Transmission Type: 6-Speed Manual (Push-Type Clutch)

✅ Vehicle Compatibility & Chassis Codes

🌎 U.S. Market

🌍 Global Market

📌 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 / 30502AA080
TSK4 Subaru Sleeve Kit
WRX STI Clutch Snout Repair
Subaru 6-Speed Push-Type Clutch Fix
Subaru STI Transmission Sleeve Upgrade