Aston Martin Vantage V8 Sportshift Clutch 6G336375DD
The part number 6G33-6375-DD refers to the Twin-Plate Flywheel and Clutch Assembly for the Aston Martin V8 Vantage (4.3L and 4.7L) equipped with the Sportshift I and II automated manual transmissions.
This specific “DD” revision is the latest factory evolution of the clutch. It was introduced to address the longevity and “shudder” issues common in the earlier “BA” and “CA” versions.
Technical Specifications
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Type: Twin-plate organic clutch.
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Diameter: 215mm.
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Application: All V8 Vantage models (2005–2018) with the Sportshift (ASM) gearbox.
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Key Improvement: The “DD” version features a revised friction material and a lightened flywheel compared to the original 2005 spec, allowing for better heat dissipation and slightly faster engine response.
The “While You Are In There” List
Replacing a Sportshift clutch is a labor-intensive job (approx. 8–12 hours). Because the torque tube and transaxle must be dropped, it is highly recommended to replace the following parts simultaneously:
| Part Name | Part Number (Approx.) | Why? |
| Slave Cylinder (Release Bearing) | 6G33-7A508-AB | The #1 cause of Sportshift failure; they leak internally. |
| Pilot Bearing | 6G33-11-10557 | A $20 part that can cause massive vibrations if it fails. |
| Rear Main Seal | 6G33-6701-AB | Prevents engine oil from ruining your brand-new clutch. |
| Flywheel Bolts | 6G33-6379-AA | These are “stretch bolts” and should never be reused. |
Critical Installation Note: The “Clutch Learn”
You cannot simply bolt this clutch in and drive away. The Sportshift system’s Transmission Control Module (TCM) must be told the new “thickness” of the clutch.
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AMDS/Diagnostic Tool: You must perform a “Clutch Bite Point Learn” using an Aston Martin diagnostic tool or a high-end equivalent (like Autel with AM software).
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Kiss Point: If the kiss point isn’t calibrated, the car will either “creep” dangerously or smell of burning clutch immediately upon startup.
Common Signs of Wear
If you are buying this part because of current car behavior, look for these symptoms:
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The “Double Shift”: The car skips a gear or struggles to find the next gear under heavy throttle.
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Smell: A distinct “burning” smell after reversing up an incline.
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High RPM Slippage: The engine revs up in 4th or 5th gear without the car accelerating proportionally.
Pro-Tip: Many owners now opt for the VelocityAP or BAMFORD ROSE dual-plate clutch upgrades instead of the OEM “DD” unit. They are often similarly priced but offer significantly better longevity and a lighter flywheel for even better throttle response.
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