The sprung coupler is an important component in Eaton TVS superchargers, forming part of the drive connection between the supercharger pulley assembly and the internal rotor drive.
In this technical guide, our specialist supercharger technician at Powerhouse Automotive demonstrates how to fit a sprung coupler to an Eaton TVS1320 supercharger, with the same general principles also applicable to the larger Eaton TVS1900.
Whether you’re carrying out a supercharger rebuild, replacing a worn coupler or simply looking to understand how the mechanism works, our workshop video provides a useful demonstration of the fitting process.
Watch: How to Fit a TVS1320 & TVS1900 Sprung Coupler
In this video, we demonstrate fitting a sprung coupler to an Eaton TVS1320 supercharger, explaining the process from a specialist workshop perspective.
The video uses the TVS1320 as its example, but the same general fitting principles can be followed when working with a compatible TVS1900 coupler assembly.
What Does a Supercharger Sprung Coupler Do?
The supercharger coupler forms part of the mechanical connection transferring drive from the pulley assembly to the supercharger’s internal rotor drive.
A sprung coupler is designed to accommodate certain torsional movements and changes in loading within the drive system.
Over time, supercharger drive components can experience wear, which may result in unwanted noise, excessive play or other mechanical problems.
When investigating a suspected coupler fault, it is important to inspect the surrounding components rather than assuming that every supercharger rattle is caused by the coupler alone.
Eaton TVS1320 and TVS1900 Coupler Replacement
The Eaton TVS1320 and TVS1900 are different supercharger models, but they share certain design principles.
Our demonstration focuses on fitting the sprung coupler to the TVS1320. The general approach is relevant to the TVS1900, although the exact components, dimensions and installation requirements must always be checked for the particular supercharger variant.
Correct component identification and careful assembly are important when undertaking this work.
Why Inspect the Supercharger During Coupler Replacement?
Replacing a worn or damaged coupler may address a specific drive-related problem, but it does not necessarily resolve other faults within the supercharger.
Depending on the condition of the unit, further inspection may be required to identify bearing wear, damaged drive components or other mechanical problems.
At Powerhouse Automotive, we specialise in supercharger inspection, repair and rebuilding. Our workshop experience allows us to assess the condition of individual components and advise on the most appropriate repair.
Sprung Couplers and Specialist Supercharger Parts
If you’re undertaking your own Eaton TVS1320 or TVS1900 supercharger repair, Powerhouse Automotive can help with replacement components, including sprung couplers.
We also offer specialist supercharger rebuild services for customers who would prefer to have their units professionally inspected and rebuilt.
Based in Chesterfield, Derbyshire, our workshop works with superchargers supplied by customers and automotive businesses.
Need Help With Your Eaton Supercharger?
Whether you need a replacement sprung coupler, assistance identifying a component or a complete supercharger rebuild, our specialist team is here to help.
Visit Powerhouse Automotive to browse our supercharger parts and rebuild services, or contact us for technical assistance.
Frequently Asked Questions
Can I fit a TVS1320 sprung coupler myself?
The procedure can be carried out by someone with suitable mechanical experience, the correct tools and the appropriate components. Our video demonstrates the process, but you should always follow the requirements for your specific supercharger.
Is fitting a sprung coupler to a TVS1900 the same as a TVS1320?
The general principles are similar, but the exact components and fitting requirements may differ. The video demonstrates the TVS1320 procedure.
Will replacing the coupler stop my supercharger rattling?
It depends on the source of the noise. A worn coupler can cause unwanted mechanical noise, but bearings and other drive components can also be responsible. Correct diagnosis is important before replacing parts.
Does Powerhouse Automotive supply sprung couplers?
Yes. Contact Powerhouse Automotive with your supercharger model and requirements so our team can help identify a suitable replacement component.

