WORKS Aperture High Pressure Shaft Seals | 2001-2006 Mitsubishi Evo 7-9 (130.300)


Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

Email -

Phone 1-888-627-3736

Fits Your:
Expected Delivery by , when ordered within hrs and mins
Include Injector Seals
Phone  Contact us for availability!

Earn  $0.59 In MAP Rewards!

WORKS Aperture High Pressure Shaft Seal Kit

The shaft seals on an OEM stock throttle body can only withstand a limited amount of pressure before they fail; especially as they get older and contaminated. The WORKS seals are the absolute best on the market! Other aftermarket seals hold less psi or fit poorly due to their housing design.

If you plan on tuning your EVO and running higher boost, these seals can give way leading to more expensive problems and troubleshooting frustrations. Some enthusiasts have experienced a 2.5psi+ pressure loss! Thankfully WORKS has addressed this issue by developing special high pressure shaft seals for our Aperture throttle bodies. Designed to fit exactly like the stock throttle shaft seals, these stronger units have been tested to 38psi when installed properly thanks, in part, to the CAD designed, OEM-style metal casing surrounding the uniquely designed WORKS internal rubber seal.

These are a must if your shaft seals are over 3 years old, have more than 30k miles, or you plan on running a bigger turbo or higher boost. Reasonably priced, the WORKS High Pressure Aperture Shaft Seal kit is an inexpensive way to prevent engine problems on all EVOs. 


  • Original design by WORKS
  • Metal housing for perfect fitment and sealing
  • Unique seal profile for holding the highest pressure and preventing the seal from flipping inside out like others


  • 2001-2006 Mitsubishi Evo 7/8/9

What's In The Box?

  • 2 WORKS shaft seals
  • OEM throttle body gasket
  • WORKS Installation Instructions


  • Manufacturer Standard Warranty


  • Installation Manual

Customer Reviews

Based on 20 reviews
Spot on

Perfect fit, excellent product. Evo 9 with 121k miles had dry, crusty, leaky throttle body gaskets. This kit solved the problem and gave me 1.5psi of boost back.

Brandon Solem
Seals work great no leaks so far 540hp build

Installed seals on throttle body 540hp 6266 build no leaks

Michael Wilson
Worked for 2006 evo ix

Easy enough to install. I recommend buying two sets because 80% chance you'll bend a seal installing it without driver tool.

Andre Keller

very good price and fast shipping to germany!

Erik nhg_evo
No bueno

Save your money and go with the STM HP Seals that are on this site. I installed these and they still leaked afterwards. Installed stm brand a few months later. Leak was gone.