# Helix 225 mm Damped Cerametalic Clutch Disc for Porsche 911 with 915 Transmission

> Helix 76-4047 225 mm cerametalic clutch disc with damped hub for Porsche 911 T/E/S, Carrera, and SC models equipped with a 915 transmission.

- URL: https://www.gt2i.com/en/helix-clutch-disks/188463-helix-225-mm-damped-cerametalic-clutch-disc-for-porsche-911-with-915-transmission-3666618394046.html
- Reference: HE-76-4047
- Price: €362.00
- Brand: HELIX
- Availability: out of stock

## Description

The Helix Autosport 76-4047 clutch disc is a 225 mm 4/5-paddle performance disc designed for several Porsche 911 models equipped with the 915 transmission. Designed for race and rally use, it combines a cerametalic clutch with a damped hub.
The damped hub is a key difference from the Helix 78-4047 model, which features a rigid hub. The hub’s springs help absorb some of the torque fluctuations transmitted between the engine and the transmission, while maintaining a disc design suitable for sport and competition use.
Part number 76-4047 features a diameter of 225 mm, a thickness of 7.20 mm, and a 22.5 mm groove profile with 20 teeth. Helix recommends it for use with a Porsche 915 transmission and a pull-type clutch system.
Compatible vehicles:
Porsche 911 T/E/S 2.4 (1971–1977) – 915 transmission
Porsche 911 Carrera 2.7 (1972–1976) – 915 transmission
Porsche 911 Carrera 3.0 (1975–1977) – 915 transmission
Porsche 911 SC 3.0 (1977–1979) – 915 transmission
Porsche 911 SC 3.0 (1980–1983) – 915 transmission
Porsche 911 Carrera 3.2 (1983–1987) – 915 transmission
Before mounting, you must verify the vehicle model and transmission type. The compatibility of this part number depends on the clutch configuration and the 915 transmission specified by Helix.
Technical Specifications
Brand: Helix Autosport
Manufacturer Part Number: 76-4047
Type: Performance 4/5 Paddle Clutch Disc
Friction material: cermet
Diameter: 225 mm
Thickness: 7.20 mm
Hub: sprung
Splines: 22.5 mm x 20 teeth
Transmission: Porsche 915
Clutch control: Pull type
Use: Race/Rally

## Features

- Product type: Clutch disc
- First word type: Disc