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Supertech Performance VSI-D5.5E Viton Integral Valve Stem Seal Ford Duratec 5.5mm

(2003-2014 Ford Focus; 2005-2015 Ford Escape; 2006-2015 Ford Fusion; 2014-2015 Ford Transit Connect; 2004-2013 Mazda 3; 2003-2008 Mazda 6 + 4 more models)

Manufacturer

Picture for manufacturer Supertech Performance

Part Number

VSI-D5.5E
8 reviews
Sale Price

$3.47

Estimated ship date Friday, November 27

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Product Details

The Supertech Performance VSI-D5.5E is a Viton integral valve stem seal designed for Ford Duratec and Mazda MZR engines with 5.5mm valve stems. Engineered as a direct-fit, high-performance replacement, this seal delivers superior sealing capability and durability for both street and competition builds.

Key Features:

  • Stem Diameter: 5.5mm
  • Guide OD: 11mm / 0.433 in
  • Seal OD: 14.7mm
  • Material: Viton — a high-temperature compound engineered for improved durability in demanding exhaust and intake applications
  • Style: Integral design with integrated spring seat
  • Position: Intake and Exhaust

Supertech intake valve seals are made from a high-quality rubber compound, while the exhaust application uses a special high-temperature Viton compound for improved longevity under heat stress. These seals are sold individually — one seal per unit. Order the quantity matching your engine's total valve count (e.g., quantity 16 for a 16-valve engine).

Products specifications

Fits

2003-2014 Ford Focus; 2005-2015 Ford Escape; 2006-2015 Ford Fusion; 2014-2015 Ford Transit Connect; 2004-2013 Mazda 3; 2003-2008 Mazda 6; 2006-2010 Mazda 5; 2007-2012 Mazda CX-7; 2006-2011 Mercury Milan; 2005-2008 Mercury Mariner

Guide OD

11.0mm/.433"

Position

Exhuast

Seal OD

14.7mm & 17mm

Order 12486. Item was simple to find and the website made it very easy to navigate. I appreciated the ability to pay with paypal and email notifications gave me confidence that everything was taken care of properly.

shipment came on time, and was nicely wrapped.

Just received my order! I placed the order Sunday night and received it on Tuesday, super fast shipping! The SS vent caps look great and arrived in perfect condition. Thanks!

Quick and easy. Price was great also

Very nice people very considerate and helpful plus the price was nice

So far so good. Price was93.00 for all moog 2 upper ball joints 2 lower balljoint 2 inner tie rods 2 outer tie rods and 2 adjusting sleeves. All number matched moogs web site numbers but 10% of the cost. If the parts are as they were stated I should recei

Return customer with a few more future purchases in mind...best price plus quick shipping means these guys are just that good!

Very smooth ordering and processing. Great communications.

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