Mahle CS5815 Engine Conversion Gasket Set

Brand Mahle CS5815
Additional Package Contents Contains miscellaneous gaskets and seals
Cylinder Head Gasket Included No
Cylinder Head Gasket Material None
Fuel Pump Gasket Included No
Head Fasteners Included No
Item Grade Oem standard
Oil Pan Gasket Included No
Oil Pan Gasket Material None
Package Quantity 14
Rear Main Seal Included Yes
Rear Main Seal Material Rubber
Timing Cover Gaskets/Seal Included Yes
Water Outlet Gasket Included No
Water Pump Gasket Included Yes
Fits Ford, Lincoln, and Mercury · 43 vehicles

OEM-standard fit. Built to match service replacement expectations for engine sealing work.

Complete sealing coverage. Includes miscellaneous gaskets and seals for conversion service.

Rubber rear main seal. Provides a durable sealing material for critical engine service points.

Cross-references FEL-PRO CS 8857-6, Ford E9DZ 6E078-A and Ford F6ZZ 6E078-AA for the same application. See all 7.

$70.56Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $70.56
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Conversion Gasket Set Overview

Mahle CS5815 is an OEM-standard engine conversion gasket set for Ford and Mercury applications. It includes the sealing components needed to pair with a head set and complete the engine sealing package.

Built for service work on the Ford Mustang, Ford Windstar, and related applications, this set focuses on the gaskets and seals commonly replaced during engine reseal jobs. Mahle CS5815 is a practical choice when you need the correct sealing pieces for a Ford Mustang engine conversion gasket set or a Ford Thunderbird, Mercury Cougar, Taurus, Sable, or Lincoln Continental engine service.

  • OEM-standard gasket set for engine conversion service
  • Includes miscellaneous gaskets and seals for sealing coverage
  • Rear main seal included with rubber construction
  • Timing cover gaskets/seal included
  • Water pump gasket included
  • No cylinder head gasket, oil pan gasket, fuel pump gasket, or head fasteners included

Detailed Application Notes

Mahle CS5815 is designed as a companion set rather than a complete top-end gasket kit. The fitment notes specify use with a head set to create a complete set, making it suitable for engine rebuild and reseal work where multiple sealing points are serviced at the same time. This part cross-references FEL-PRO CS 8857-6 for the same application.

Common Repair Uses

  • Replacing worn engine seals during reseal service
  • Addressing oil leakage at the rear main seal area
  • Restoring sealing at the timing cover
  • Servicing the water pump sealing surface
  • Completing a Ford Mustang or Ford Thunderbird engine gasket job

Installation Notes and Tips

Verify engine configuration before installation and compare all sealing surfaces for wear, corrosion, or residue. Because this is an engine conversion gasket set, it should be matched with the correct head set for full coverage. Clean mating surfaces thoroughly and follow the service manual torque sequence and sealant instructions where applicable.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing performance and OE-standard service replacement.

This part fits 43 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
1999FordMustang3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1998FordMustang3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1998FordWindstar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1997FordMustang3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1997FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1997FordWindstar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1997MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1996FordMustang3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1996FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1996FordWindstar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1996MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1995FordMustang3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1995FordTaurus3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1995FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1995FordWindstar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1995MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1995MercurySable3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1994FordMustang3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1994FordTaurus3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1994FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1994LincolnContinental3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1994MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1994MercurySable3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1993FordTaurus3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1993FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1993LincolnContinental3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1993MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1993MercurySable3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1992FordTaurus3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1992FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1992LincolnContinental3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1992MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1992MercurySable3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1991FordTaurus3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1991FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1991LincolnContinental3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1991MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1991MercurySable3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1990FordTaurus3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1990FordThunderbird3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1990LincolnContinental3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1990MercuryCougar3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
1990MercurySable3.8LV6Use this Engine Conversion Gasket Set with the Head Set to create a complete set.
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — CS 8857-6Ford — E9DZ 6E078-AFord — F6ZZ 6E078-AARol — LS33002Sealed Power — 260-1693Sealed Power — 260-1694Sealed Power — 260-1739