Teaching An Old Seal New Tricks.

Introducing the NEW Gearbox Output SundSEAL™ (for low or high speeds) to keep your pump or compressor highly reliable. Designed for use on integrally geared pumps and compressors, the seal is purpose built to minimize leakage and increase the meantime between repairs. Manufactured from Sundyne proprietary materials, this is our most durable seal to date; and with a straightforward retrofit capability, the seal is an easy upgrade for existing units.

Order A NEW SundSEAL Today!

Highly Improved Performance.

The NEW proprietary, easy to upgrade Gearbox Output SundSEAL™ delivers a robust sealing interface that is proven to reduce leakage by providing a harder contact surface with less friction. When configured with pressure management and proper lubrication, the new Sundyne seal vastly improves your overall operational efficiencies and return on investment.
  • Cost competitive
  • Reduces leaks
  • Lower temperature
  • Robust construction
  • Easy to maintain
  • Increased MTBR
  • Durable lifecycle


SundSEAL Minimizes Leakage

order A NEW SundSEAL Today!


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Order A NEW SundSEAL Today!

With over 20,000 hours of combined factory and lab testing behind it, the NEW Gearbox Output SundSEAL minimizes leakage while effectively controlling seal face condition for a longer, more durable life.

Now it’s easier than ever to upgrade your seals! To place an order, locate and contact your local channel partner or order a Reliability Assurance Kit to upgrade your gearbox seals. Don't forget to ask us about Sundyne Gearbox Upgrades with improved features.


• New Output Seal

• New Breather

• Bearing Plate

• Bolt-in Uni-Directional Lube Pump, Relief Valve, input Shaft

• API Compliant Input and Idler Shaft Bearings

• Helical Upper Gear Mesh


Output Shaft Seal Kit for Sundyne Gearboxes

KT01SE98A0 Low-RPM Seal Kit

  • Output speed < 20,000 RPM
  • 275 PSI (19-bar) reverse pressure capability
  • Contains SE04AA98A and RF09AA41SN1HN00


KT01SE98A1 Low-RPM Seal Kit (high-flow pump models only)

  • Output speed < 20,000 RPM
  • 275 PSI (19-bar) reverse pressure capability
  • Contains SE04AA98A and RJ09AK16SN1HN00


KT01SE99A High-RPM Seal Kit

  • output speed > 20,000 RPM
  • 150-PSI (10.3-bar) reverse pressure capability
  • Contains SE04AA9A and RJ09AA41SN1HN00




Improved Port Design

Optimal Drainage & Pressure Management

Current State 

NEW 4-hole housing or easily upgrade your existing equipment



Buy A NEW 275hp Gearbox!