8HP90/95 Billet E-Clutch Drum for Dodge / Mopar by SunCoast

Rated 5.00 out of 5 based on 7 customer ratings

$1,200.00

Features & Benefits:

Manufactured from 7075-T6 billet aluminum alloy
New oil channels machined in hub feed for improved critical E-clutch oil distribution
Redirected oil channels for more even fluid disbursement
Oil lube moved from critical torsional fatigue area in spline area
Hub machined radius to keep hub from bottoming out of input shaft step.
New proprietary self lubricating bushings help prevent scoring of input shaft
Large lube orifices for improved clutch heat dissipation

With the 6.2 supercharged Hemi platform, there is no shortage on power, and it has become apparent Mopar is dead set on bringing Satan’s fury to your driveway with the Hellcat, the Redeye, and the Hellephant platforms. What this means for the 8HP90/95 transmissions that go behind these behemoths of torque is nothing short of controlled chaos. Within the chaos we begin to see the weaknesses unveiled.

It is not uncommon to find the E-clutch drum on these units fail catastrophically, resulting in what can be costly collateral damage to your unit. This new 8HP90/95 Billet E-Clutch Drum is the solution you have been looking for.

SunCoast started with improving the material we manufacture this drum with. The factory unit is manufactured from a cast material that is highly susceptible to torsional fatigue, which will result in failures as you see above. This new 8HP90/95 Billet E-Clutch Drum is manufactured from 7075-T6 billet aluminum alloy, which has a superior yield strength of 69,000 psi. This improvement alone reduces the chance of catastrophic failure, resulting in expensive collateral damage to your 8HP90/95 transmission.

The oil lube feed for the spline area has been moved from the splines to the larger shoulder of the hub. This improves overall strength of the hub without having the oil lube feed in a critical stress area. The size of the orifices has also been enlarged for better lubrication. If you notice in the photos above, the oil feed holes within the spline are the weak points in which the critical failures occur.

The proprietary bushings in this drum are self-lubricating to assist in preventing scoring of the input shaft, reducing critical hot spots within the shaft and diminishing uneven tempering.

There are also critical improvements made directly to the oil feed of this new 8HP90/95 Billet E-Clutch Drum. In the pictures above, you will notice that the shoulder which holds the internally splined clutch has now received a machined channel to improve E-clutch oil distribution and increase oil volume to the E-clutches. This increased oil volume also aids in the cooling of these ever-so-problematic E-clutches, leading to increased lifespan.

In higher horsepower applications, we have seen cradle movement the causes low drive shaft clearance. Previously when this occurred, the drum would contact the step in the input shaft, which could and would result in beautiful fine metal art being dispersed throughout your 8HP90/95 transmission. This new 8HP90/95 Billet E-Clutch Drum features a machined radius around the hub to keep the drum from bottoming out on the input shaft when this transpires.

This 8HP90/95 Billet E-Clutch Drum has been tested in some of the world’s fastest 8HP90/95 equipped vehicles in the world, including our very own Brian Carter’s Hellcat, and has consistently put down low-8-second passes for the past two seasons.

Description
Reviews (7)

8HP90 E-Clutch Drum by SunCoast

Upgrade your Dodge or Mopar transmission performance with the 8HP90 E-Clutch Drum by SunCoast, designed for high-power applications requiring increased strength and reliability. This billet E-clutch drum provides a durable solution for enthusiasts pushing their 8HP90 and 8HP95 transmissions beyond factory limits.

The 8HP90 E-Clutch Drum is engineered to handle increased torque loads from powerful HEMI engines, including supercharged and modified performance builds. SunCoast manufactures this billet component to improve transmission durability and reduce the risk of factory component failure under demanding driving conditions.

Factory transmission components can become a weak point when engine power increases. The SunCoast billet E-clutch drum provides enhanced strength and improved reliability for street performance, racing, and high-horsepower applications.

Product Specifications

Feature	Details
Product Name	8HP90/95 Billet E-Clutch Drum
Brand	SunCoast Performance
Transmission Compatibility	ZF 8HP90 / 8HP95
Vehicle Compatibility	Dodge / Mopar Applications
Product Type	Billet Transmission Upgrade Component
Main Benefit	Increased Clutch Strength & Durability
Material	Billet Construction
Application	High Performance & Racing Builds
Transmission System	Automatic Transmission
Upgrade Level	Heavy-Duty Performance Upgrade

Key Features

Fits 8HP90 and 8HP95 transmissions
Manufactured by SunCoast Performance
Billet construction for increased strength
Supports high-torque applications
Improves transmission reliability
Designed for modified Dodge and Mopar vehicles
Ideal for racing and performance builds

The SunCoast E-Clutch Drum provides transmission builders and performance enthusiasts with a stronger foundation for handling increased horsepower and torque. It is an essential upgrade for vehicles where factory transmission components may not withstand aggressive driving conditions.

Whether you are building a high-powered Dodge Challenger, Charger, Durango, Ram, or another Mopar performance vehicle, this billet E-clutch drum delivers the durability needed for demanding applications.

Choose the 8HP90 E-Clutch Drum by SunCoast for a premium transmission upgrade designed to improve strength, reliability, and long-term performance.

7 reviews for 8HP90/95 Billet E-Clutch Drum for Dodge / Mopar by SunCoast

Rated 5 out of 5

Harrison Bellamy – May 15, 2025

I bought the SunCoast Billet E-Clutch Drum for my Demon transmission build because I wanted maximum reliability before increasing horsepower. Dodge Auto Supply shipped quickly, and the part arrived in perfect condition. My transmission specialist installed it during a full performance build, and the fitment was exact. After getting the car back, I noticed the shifts were sharper and much more controlled. Launches feel more solid, and the transmission holds power without slipping. This is a critical upgrade for anyone building big power with the 8HP90 or 95.
Rated 5 out of 5

Nolan Prescott – June 25, 2025

I ordered this billet E-clutch drum for my Redeye transmission build after my tuner recommended strengthening the internals. Dodge Auto Supply made the process easy, and shipping to Canada was smooth. The part arrived well protected and looked very well machined. My transmission specialist installed it during a full rebuild, and fitment was perfect. Since getting the car back, shifting has become much smoother under heavy load, and the transmission feels stronger overall. This was an important upgrade for my setup.
Rated 5 out of 5

Wesley Carmichael – September 25, 2025

I purchased the SunCoast billet E-clutch drum for my Trackhawk because I was increasing boost and needed a stronger transmission setup. Dodge Auto Supply had the best ordering process I’ve experienced. The part arrived quickly and looked flawless. My shop installed it during the build, and they were impressed with the material quality. After tuning, the SUV shifts more consistently, and gear changes under load feel much tighter. This part definitely improved durability and performance.
Rated 5 out of 5

Trevor Langston – October 21, 2025

I bought the SunCoast Billet E-Clutch Drum for my 2021 Charger Hellcat because I was upgrading my transmission to handle more power. My stock drum started showing wear after repeated drag strip launches, so I wanted something stronger. Dodge Auto Supply had the exact part I needed, and their checkout process was easy. Shipping was fast, and the packaging was excellent. My transmission builder said the billet construction was far superior to the factory unit. During installation, everything fit exactly right, and the machining quality looked outstanding. After putting the transmission back together, shifts felt much firmer and cleaner, especially under full throttle. The car now handles hard launches without hesitation, and the transmission feels much more reliable. This upgrade gave me peace of mind knowing the drivetrain can hold the power I’m pushing.
Rated 5 out of 5

Dominic Everhart – October 25, 2025

I purchased the billet E-clutch drum for my Hellcat rebuild in Saskatchewan, and the service from Dodge Auto Supply was excellent. The part arrived safely, and the packaging was solid. My transmission shop installed it with no fitment issues, and they said it was built to handle serious power. Since the upgrade, my car shifts much harder and more consistently. It feels far more durable under aggressive driving. I’m very happy with the quality.
Rated 5 out of 5

Garrett Hollowell – April 27, 2026

I needed a stronger E-clutch drum for my Challenger Redeye after adding more horsepower, and Dodge Auto Supply had exactly what I was looking for. Shipping to Manitoba was fast, and the part arrived in excellent condition. My transmission builder said the billet design was a huge improvement over stock. Installation was simple during the rebuild, and everything fit correctly. Since the upgrade, shifts have been cleaner and much more reliable. The car feels stronger at launch and much more stable on hard pulls.
Rated 5 out of 5

Spencer Whitmore – May 22, 2026

I ordered this SunCoast E-clutch drum for my Charger drag build because my stock transmission was reaching its limits. Dodge Auto Supply made the order process quick and simple. The part arrived on time and was packed securely. My builder installed it as part of a transmission refresh, and he said the machining tolerances were excellent. Since the install, the car hooks harder and shifts more confidently at wide-open throttle. It’s one of the smartest drivetrain upgrades I’ve made.