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BCBC MRK-551-2 Engine Rocker Arm Kit

Brand BCBC MRK-551-2
10550 Yes
Nut Type Self locking
Grade Type Standard replacement
Adjustable Yes
Body Material Steel
Rocker Arm Body Type Non-roller
Mounting Studs Included No
Mounting Bolts Included No
Product line Stock
Fits American Motors, Dodge, Eagle, and Jeep · 108 vehicles

Stock replacement. Standard replacement rocker arm kit for valve train service work.

Steel construction. Non-roller rocker arm body with a self-locking nut design.

Made in USA. Built by Melling for engine rebuild and service applications.

Cross-references DNJ RM123, 41-2551-2 and 181-1037 for the same application. See all 5.

$25.41Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Rocker Arm Kit Overview

This Melling rocker arm kit is built for stock-style valve train service and engine rebuild work. It is a direct-fit service kit for a wide range of Jeep, Dodge, and AMC applications, including Jeep Wrangler, Jeep Cherokee, and Dodge Dakota fitments.

Key Features

  • Steel rocker arm body with a non-roller design
  • Adjustable rocker arm setup for valve train service
  • Self-locking nut type for secure assembly
  • Standard replacement grade for stock applications
  • Made in the USA

Detailed Description

Part number MRK-551-2 is a Melling engine rocker arm kit intended for stock replacement use in compatible Jeep, Dodge, and AMC engines. Melling supplies the rocker arm along with the correct fulcrum, bolt, and stud combinations for the application, which helps simplify valve train selection during rebuilds. This kit is suited for builders looking for a steel, non-roller rocker arm assembly for service work on engines used in Jeep Wrangler, Jeep Cherokee, and Dodge Dakota platforms. MRK-551-2 is also referenced by cross numbers 41-2551-2 and RK-551-2 for the same application.

What It Is Used For

  • Replacing worn rocker arms during valve train service
  • Restoring proper valve actuation in stock engine builds
  • Addressing noisy or inconsistent rocker arm operation
  • Supporting rebuilds that require matched fulcrum and fastener combinations
  • Servicing compatible Jeep, Dodge, and AMC engines

Installation Notes and Tips

Verify engine application before ordering, since fitment varies by year and model. Confirm the correct rocker arm, fulcrum, bolt, and stud combination for the engine being serviced. Follow factory valve train procedures and torque specifications during installation. Compatible With 2006-2006 Jeep TJ, 2006-2006 Jeep Wrangler, 1997-2005 Jeep TJ, 1997-2005 Jeep Wrangler, 1993-2004 Jeep Grand Cherokee, 1996-2002 Dodge Dakota, 1983-2001 Jeep Cherokee, 1986-1992 Jeep Comanche, 1983-1990 Jeep Wagoneer, 1988-1989 Eagle Premier, 1983-1987 American Motors Eagle, 1983-1987 Jeep J10, 1983-1986 Jeep CJ7, 1984-1986 Jeep Grand Wagoneer, 1983-1985 Jeep Scrambler, 1983 American Motors Concord, 1983 American Motors Spirit, 1983 Jeep CJ5, and 1983 Jeep DJ5.

Quality Assurance

Melling states this kit is made in the USA and supplies the correct component combinations for the intended engine application. Part number MRK-551-2 is built as a standard replacement service kit for valve train rebuild work.

This part fits 108 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2006JeepTJ4.0LL6Stock
2006JeepWrangler4.0LL6Stock
2005JeepTJ4.0LL6Stock
2005JeepWrangler4.0LL6Stock
2004JeepGrand Cherokee4.0LL6Stock
2004JeepTJ4.0LL6Stock
2004JeepWrangler4.0LL6Stock
2003JeepGrand Cherokee4.0LL6Stock
2003JeepTJ4.0LL6Stock
2003JeepWrangler4.0LL6Stock
2002DodgeDakota2.5LL4Stock
2002JeepGrand Cherokee4.0LL6Stock
2002JeepTJ4.0LL6Stock
2002JeepWrangler4.0LL6Stock
2001DodgeDakota2.5LL4Stock
2001JeepCherokee4.0LL6Stock
2001JeepGrand Cherokee4.0LL6Stock
2001JeepTJ4.0LL6Stock
2001JeepWrangler4.0LL6Stock
2000DodgeDakota2.5LL4Stock
2000JeepCherokee4.0LL6Stock
2000JeepGrand Cherokee4.0LL6Stock
2000JeepTJ4.0LL6Stock
2000JeepWrangler4.0LL6Stock
1999DodgeDakota2.5LL4Stock
1999JeepCherokee4.0LL6Stock
1999JeepGrand Cherokee4.0LL6Stock
1999JeepTJ4.0LL6Stock
1999JeepWrangler4.0LL6Stock
1998DodgeDakota2.5LL4Stock
1998JeepCherokee4.0LL6Stock
1998JeepGrand Cherokee4.0LL6Stock
1998JeepTJ4.0LL6Stock
1998JeepWrangler4.0LL6Stock
1997DodgeDakota2.5LL4Stock
1997JeepCherokee4.0LL6Stock
1997JeepGrand Cherokee4.0LL6Stock
1997JeepTJ4.0LL6Stock
1997JeepWrangler4.0LL6Stock
1996DodgeDakota2.5LL4Stock
1996JeepCherokee4.0LL6Stock
1996JeepGrand Cherokee4.0LL6Stock
1995JeepCherokee4.0LL6Stock
1995JeepGrand Cherokee4.0LL6Stock
1995JeepWrangler4.0LL6Stock
1994JeepCherokee4.0LL6Stock
1994JeepGrand Cherokee4.0LL6Stock
1994JeepWrangler4.0LL6Stock
1993JeepCherokee4.0LL6Stock
1993JeepGrand Cherokee4.0LL6Stock
1993JeepWrangler4.0LL6Stock
1992JeepCherokee4.0LL6Stock
1992JeepComanche4.0LL6Stock
1992JeepWrangler4.0LL6Stock
1991JeepCherokee4.0LL6Stock
1991JeepComanche4.0LL6Stock
1991JeepWrangler4.0LL6Stock
1990JeepCherokee4.0LL6Stock
1990JeepComanche4.0LL6Stock
1990JeepWagoneer4.0LL6Stock
1990JeepWrangler4.2LL6Stock
1989EaglePremier2.5LL4Stock
1989JeepCherokee4.0LL6Stock
1989JeepComanche4.0LL6Stock
1989JeepWagoneer4.0LL6Stock
1989JeepWrangler4.2LL6Stock
1988EaglePremier2.5LL4Stock
1988JeepCherokee4.0LL6Stock
1988JeepComanche4.0LL6Stock
1988JeepWagoneer4.0LL6Stock
1988JeepWrangler4.2LL6Stock
1987American MotorsEagle4.2LL6Stock
1987JeepCherokee4.0LL6Stock
1987JeepComanche4.0LL6Stock
1987JeepJ104.2LL6Stock
1987JeepWagoneer4.0LL6Stock
1987JeepWrangler4.2LL6Stock
1986American MotorsEagle4.2LL6Stock
1986JeepCherokee2.5LL4Stock
1986JeepCJ74.2LL6Stock
1986JeepComanche2.5LL4Stock
1986JeepGrand Wagoneer4.2LL6Stock
1986JeepJ104.2LL6Stock
1986JeepWagoneer2.5LL4Stock
1985American MotorsEagle4.2LL6Stock
1985JeepCherokee2.5LL4Stock
1985JeepCJ74.2LL6Stock
1985JeepGrand Wagoneer4.2LL6Stock
1985JeepJ104.2LL6Stock
1985JeepScrambler4.2LL6Stock
1985JeepWagoneer2.5LL4Stock
1984American MotorsEagle4.2LL6Stock
1984JeepCherokee2.5LL4Stock
1984JeepCJ74.2LL6Stock
1984JeepGrand Wagoneer4.2LL6Stock
1984JeepJ104.2LL6Stock
1984JeepScrambler4.2LL6Stock
1984JeepWagoneer2.5LL4Stock
1983American MotorsConcord4.2LL6Stock
1983American MotorsEagle4.2LL6Stock
1983American MotorsSpirit4.2LL6Stock
1983JeepCherokee4.2LL6Stock
1983JeepCJ54.2LL6Stock
1983JeepCJ74.2LL6Stock
1983JeepDJ54.2LL6Stock
1983JeepJ104.2LL6Stock
1983JeepScrambler4.2LL6Stock
1983JeepWagoneer4.2LL6Stock
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
DNJ — RM12341-2551-2181-1037R-905RK-551-2