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Ens. jnts d’adapt. - main product image
FEL-PRO
Part # CS 26665
4.7(47 reviews)

Ens. jnts d’adapt.

Fits Ford — 35 vehicle applications

$216.34
Only 3 left in stock
1
Express Checkout
Free ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
Will this fit your vehicle?

Select your vehicle to check fitment.

FEL-PRO CS 26665 Vehicle Fitment

Fits 35 vehicles

This Ens. jnts d’adapt. fits Ford vehicles.

  • 2017-2019 Ford E-350 Super Duty

  • 2017-2019 Ford E-450 Super Duty

  • 2011-2022 Ford F-250 Super Duty

  • 2011-2022 Ford F-350 Super Duty

  • 2010-2014 Ford F-150

FEL-PRO CS 26665 Specifications

Grade Type
Premium
Prop 65 Label (Yes/No)
No

FEL-PRO CS 26665 Interchange Numbers

This part replaces and is compatible with the following part numbers

Interchange Numbers

CS54899(MAHLE)

FEL-PRO CS 26665 Product Description

FEL-PRO CS 26665 Engine Conversion Gasket Set for Ford F-250 Super Duty

Key Features

  • Conversion Sets (CS) provide every gasket for lower engine work - add a Head Set (HS) for complete engine overhaul work
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Los juegos de conversión (conversión set, CS) cuenta con todas las juntas para trabajos del motor inferior, Juego de cabeza (head set, HS) para trabajos de reacondicionamiento general del motor
  • Diseño especifico según la aplicación para garantizar un ajuste perfecto
  • Cumple o excede todas las especificaciones de equipo original.
  • Validada en cuanto a forma, tamaño y función
  • Calidad insuperable en que puede confiar
  • Les ensembles d’adaptation (EA) fournissent chaque joint pour le fonctionnement du moteur inférieur — ajoutez un ensemble de têtes (ET) pour le travail complet de révision du moteur
  • Conception propre aux applications pour garantir un ajustement parfait
  • Respecte ou dépasse toutes les spécifications d’équipement d’origine
  • Validé pour l’ajustement, la forme et la fonction
  • Qualité inégalée à laquelle vous pouvez faire confiance

Las juntas Fel-Pro ofrecen un sellado de vehículos al 100 % con materiales específicos a la aplicación para brindarle soluciones de sellado con el desempeño y durabilidad que confían los profesionales.

About FEL-PRO

Shop FEL-PRO Engine Conversion Gasket Set at Autrex with vehicle fitment details, current pricing, and checkout options for the FEL-PRO CS 26665. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Ratings & Reviews

4.7out of 5

Based on 47 reviews

  • 538
  • 46
  • 31
  • 21
  • 11
  • Direct fit, no surprises
    Marc D.Verified BuyerMay 28, 2026

    Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.

    Installed on 2016 Ram 1500

  • Shipped fast across Canada
    Jen P.Verified BuyerMay 14, 2026

    Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.

    Installed on 2014 Chevrolet Silverado 1500

  • Good part, double-check your side
    Steve R.Verified BuyerApr 30, 2026

    Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.

    Installed on 2017 Ford F-150

  • Quiet again
    Amrit S.Verified BuyerApr 19, 2026

    Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.

    Installed on 2015 GMC Sierra 1500

  • Would buy again
    Daniel L.Mar 22, 2026

    Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.

    Installed on 2013 Dodge Durango

Frequently Asked Questions — FEL-PRO CS 26665

What vehicles does the FEL-PRO CS 26665 fit?

The FEL-PRO CS 26665 fits 5 vehicle applications including 2011-2022 Ford F-250 Super Duty, 2011-2022 Ford F-350 Super Duty, 2017-2019 Ford E-350 Super Duty, 2017-2019 Ford E-450 Super Duty, 2010-2014 Ford F-150. Check the full fitment list above to confirm your vehicle.

What parts does the FEL-PRO CS 26665 replace?

The FEL-PRO CS 26665 is a direct replacement for MAHLE CS54899. See the full interchange list for all compatible replacements.

What are the shipping options for the FEL-PRO CS 26665?

Shipping options for the FEL-PRO CS 26665 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.

How much does the FEL-PRO CS 26665 cost?

The FEL-PRO CS 26665 is currently listed at $216.34 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.

Is the Ens. jnts d’adapt. a direct fit replacement?

Yes, the Ens. jnts d’adapt. by FEL-PRO is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.

What warranty does the Ens. jnts d’adapt. come with?

The Ens. jnts d’adapt. comes with the standard FEL-PRO manufacturer warranty. Please check the product specifications for exact warranty terms.