BCBC MRK-548 Engine Rocker Arm Kit
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BCBC MRK-548 Engine Rocker Arm Kit

Brand BCBC MRK-548
10550 Yes
Grade Type Standard replacement
Adjustable Yes
Body Material Stainless steel
Rocker Arm Body Type Non-roller
Mounting Bolts Included Yes
Product line Stock
Fits Ford, Lincoln, and Mercury · 391 vehicles

Standard replacement. Built for stock-style valve train service and rebuild applications.

Adjustable design. Helps match the correct setup for the specified engine application.

Stainless steel body. Uses a durable non-roller rocker arm construction.

Cross-references Pioneer Automotive Industries RK-889-B, 41-2548 and 181-1035 for the same application. See all 15.

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Overview

The Melling MRK-548 rocker arm kit is built for stock-style valve train service and replacement applications. It is made in the USA and pairs the rocker arm with the correct fulcrum, bolt, and stud combinations for the engine application. Compatible with a wide range of Ford, Mercury, and Lincoln V8 applications, including Ford F-150, Ford Bronco, and Mercury Grand Marquis fitments.

Key Features

  • Standard replacement rocker arm kit for valve train service
  • Adjustable design for application-specific setup
  • Non-roller rocker arm body type
  • Stainless steel body material
  • Mounting bolts included
  • Made in the USA

Detailed Description

Melling MRK-548 is a stock-line engine rocker arm kit intended for rebuilds and service work where the correct rocker arm, fulcrum, bolt, and stud combination is needed. The adjustable, non-roller design and stainless steel body support a conventional valve train configuration, while the included mounting bolts simplify parts selection for the listed engine applications. This part cross-references Pioneer Automotive Industries RK-889-B for the same application. The MRK-548 is listed across many Ford, Mercury, and Lincoln models, including Ford Explorer, Ford Mustang, and Lincoln Town Car applications.

Common Issues This Part Can Address

  • Worn or damaged rocker arm components in a stock valve train
  • Incorrect fulcrum, bolt, or stud selection during engine service
  • Valve train noise caused by worn rocker arm hardware
  • Restoration or rebuild work requiring application-specific rocker arm parts

Installation Notes and Tips

Verify engine application details before ordering, especially for listings with serial-number notes. This kit is for stock-style engine service and should be matched to the correct valve train configuration during installation. Follow the engine builder’s procedures for adjustment and torque specifications.

Quality Assurance

Melling states that this rocker arm kit is made in the USA and supplied as a standard replacement service part for engine valve train applications.

Related reading

This part fits 391 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
2001FordExplorer—5.0LV8After Serial Number BEO, 001; Stock
2001MercuryMountaineer—5.0LV8Stock
2000FordExplorer—5.0LV8After Serial Number BEO, 001; Stock
2000MercuryMountaineer—5.0LV8Stock
1999FordExplorer—5.0LV8After Serial Number BEO, 001; Stock
1999MercuryMountaineer—5.0LV8Stock
1998FordExplorer—5.0LV8After Serial Number BEO, 001; Stock
1998FordF-350—5.0LV8After Serial Number BEO, 001; Stock
1998MercuryMountaineer—5.0LV8Stock
1997FordExplorer—5.0LV8After Serial Number BEO, 001; Stock
1997FordF-250—5.0LV8After Serial Number BEO, 001; Stock
1997FordF-350—5.8LV8Stock
1997MercuryMountaineer—5.0LV8Stock
1996FordBronco—5.8LV8Stock
1996FordE-150 Econoline—5.8LV8Stock
1996FordE-150 Econoline Club Wagon—5.8LV8Stock
1996FordE-250 Econoline—5.8LV8Stock
1996FordE-350 Econoline—5.8LV8Stock
1996FordE-350 Econoline Club Wagon—5.8LV8Stock
1996FordEconoline Super Duty—5.8LV8Stock
1996FordExplorer—5.0LV8After Serial Number BEO, 001; Stock
1996FordF-150—5.8LV8Stock
1996FordF-250—5.8LV8Stock
1996FordF-350—5.8LV8Stock
1995FordBronco—5.8LV8Stock
1995FordE-150 Econoline—5.8LV8Stock
1995FordE-150 Econoline Club Wagon—5.8LV8Stock
1995FordE-250 Econoline—5.8LV8Stock
1995FordE-350 Econoline—5.8LV8Stock
1995FordE-350 Econoline Club Wagon—5.8LV8Stock
1995FordF-150Lightning5.8LV8Stock
1995FordF-250—5.8LV8Stock
1995FordF-350—5.8LV8Stock
1995FordMustangGTS5.0LV8Stock
1994FordBronco—5.8LV8Stock
1994FordE-150 Econoline—5.8LV8Stock
1994FordE-150 Econoline Club Wagon—5.8LV8Stock
1994FordE-250 Econoline—5.8LV8Stock
1994FordE-350 Econoline—5.8LV8Stock
1994FordE-350 Econoline Club Wagon—5.8LV8Stock
1994FordF-150Lightning5.8LV8Stock
1994FordF-250—5.8LV8Stock
1994FordF-350—5.8LV8Stock
1994FordMustangGT5.0LV8Stock
1993FordBronco—5.8LV8Stock
1993FordE-150 Econoline—5.8LV8Stock
1993FordE-150 Econoline Club Wagon—5.8LV8Stock
1993FordE-250 Econoline—5.8LV8Stock
1993FordE-350 Econoline—5.8LV8Stock
1993FordE-350 Econoline Club Wagon—5.8LV8Stock
1993FordF-150Lightning5.8LV8Stock
1993FordF-250—5.8LV8Stock
1993FordF-350—5.8LV8Stock
1993FordMustangLX5.0LV8Stock
1993FordThunderbirdLX5.0LV8Stock
1993MercuryCougar—5.0LV8Stock
1992FordBronco—5.8LV8Stock
1992FordE-150 Econoline—5.8LV8Stock
1992FordE-150 Econoline Club Wagon—5.8LV8Stock
1992FordE-250 Econoline—5.8LV8Stock
1992FordE-350 Econoline—5.8LV8Stock
1992FordE-350 Econoline Club Wagon—5.8LV8Stock
1992FordF-150—5.8LV8Stock
1992FordF-250—5.8LV8Stock
1992FordF-350—5.8LV8Stock
1992FordMustang—5.0LV8Stock
1992FordThunderbird—5.0LV8Stock
1992LincolnMark VII—5.0LV8Stock
1992MercuryCougar—5.0LV8Stock
1991FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1991FordBronco—5.8LV8Stock
1991FordCougar—5.0LV8Stock
1991FordCountry Squire—5.0LV8Stock
1991FordE-150 Econoline—5.8LV8Stock
1991FordE-150 Econoline Club Wagon—5.8LV8Stock
1991FordE-250 Econoline—5.8LV8Stock
1991FordE-250 Econoline Club Wagon—5.8LV8Stock
1991FordE-350 Econoline—5.8LV8Stock
1991FordE-350 Econoline Club Wagon—5.8LV8Stock
1991FordF-150—5.8LV8Stock
1991FordF-200—5.0LV8After Serial Number BEO, 001; Stock
1991FordF-250—5.8LV8Stock
1991FordF-350—5.8LV8Stock
1991FordLTD Crown Victoria—5.8LV8Stock
1991FordMustang—5.0LV8Stock
1991FordP-350—5.0LV8After Serial Number BEO, 001; Stock
1991FordThunderbird—5.0LV8Stock
1991LincolnMark VII—5.0LV8Stock
1991MercuryColony Park—5.0LV8Stock
1991MercuryCougar—5.0LV8Stock
1991MercuryGrand Marquis—5.0LV8Stock
1990FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1990FordBronco—5.8LV8Stock
1990FordCougar—5.0LV8Stock
1990FordCountry Squire—5.0LV8Stock
1990FordE-150 Econoline—5.8LV8Stock
1990FordE-150 Econoline Club Wagon—5.8LV8Stock
1990FordE-250 Econoline—5.8LV8Stock
1990FordE-250 Econoline Club Wagon—5.8LV8Stock
1990FordE-350 Econoline—5.8LV8Stock
1990FordE-350 Econoline Club Wagon—5.8LV8Stock
1990FordF-150—5.8LV8Stock
1990FordF-200—5.0LV8After Serial Number BEO, 001; Stock
1990FordF-250—5.8LV8Stock
1990FordF-350—5.8LV8Stock
1990FordLTD Crown Victoria—5.8LV8Stock
1990FordMustang—5.0LV8Stock
1990FordP-350—5.0LV8After Serial Number BEO, 001; Stock
1990LincolnMark VII—5.0LV8Stock
1990LincolnTown Car—5.0LV8Stock
1990MercuryColony Park—5.0LV8Stock
1990MercuryGrand Marquis—5.0LV8Stock
1989FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1989FordBronco—5.8LV8Stock
1989FordCountry Squire—5.0LV8Stock
1989FordE-150 Econoline—5.8LV8Stock
1989FordE-150 Econoline Club Wagon—5.8LV8Stock
1989FordE-250 Econoline—5.8LV8Stock
1989FordE-250 Econoline Club Wagon—5.8LV8Stock
1989FordE-350 Econoline—5.8LV8Stock
1989FordE-350 Econoline Club Wagon—5.8LV8Stock
1989FordF-150—5.8LV8Stock
1989FordF-200—5.0LV8After Serial Number BEO, 001; Stock
1989FordF-250—5.8LV8Stock
1989FordF-350—5.8LV8Stock
1989FordLTD Crown Victoria—5.8LV8Stock
1989FordMustang—5.0LV8Stock
1989FordP-350—5.0LV8After Serial Number BEO, 001; Stock
1989LincolnMark VII—5.0LV8Stock
1989LincolnTown Car—5.0LV8Stock
1989MercuryColony Park—5.0LV8Stock
1989MercuryGrand Marquis—5.0LV8Stock
1988FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1988FordBronco—5.8LV8Stock
1988FordCountry Squire—5.0LV8Stock
1988FordE-150 Econoline—5.8LV8Stock
1988FordE-150 Econoline Club Wagon—5.8LV8Stock
1988FordE-250 Econoline—5.8LV8Stock
1988FordE-250 Econoline Club Wagon—5.8LV8Stock
1988FordE-350 Econoline—5.8LV8Stock
1988FordE-350 Econoline Club Wagon—5.8LV8Stock
1988FordF-150—5.8LV8Stock
1988FordF-200—5.0LV8After Serial Number BEO, 001; Stock
1988FordF-250—5.8LV8Stock
1988FordF-350—5.8LV8Stock
1988FordLTD Crown Victoria—5.8LV8Stock
1988FordMustang—5.0LV8Stock
1988FordThunderbird—5.0LV8Stock
1988LincolnMark VII—5.0LV8Stock
1988LincolnTown Car—5.0LV8Stock
1988MercuryColony Park—5.0LV8Stock
1988MercuryCougar—5.0LV8Stock
1988MercuryGrand Marquis—5.0LV8Stock
1987FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1987FordBronco—5.8LV8Stock
1987FordCountry Squire—5.0LV8Stock
1987FordE-150 Econoline—5.8LV8Stock
1987FordE-150 Econoline Club Wagon—5.8LV8Stock
1987FordE-250 Econoline—5.8LV8Stock
1987FordE-250 Econoline Club Wagon—5.8LV8Stock
1987FordE-350 Econoline—5.8LV8Stock
1987FordE-350 Econoline Club Wagon—5.8LV8Stock
1987FordF-150—5.8LV8Stock
1987FordF-200—5.0LV8After Serial Number BEO, 001; Stock
1987FordF-250—5.8LV8Stock
1987FordF-350—5.8LV8Stock
1987FordLTD Crown Victoria—5.8LV8Stock
1987FordMustang—5.0LV8Stock
1987FordThunderbird—5.0LV8Stock
1987LincolnContinental—5.0LV8Stock
1987LincolnMark VII—5.0LV8Stock
1987LincolnTown Car—5.0LV8Stock
1987MercuryColony Park—5.0LV8Stock
1987MercuryCougar—5.0LV8Stock
1987MercuryGrand Marquis—5.0LV8Stock
1986FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1986FordB-200 Panel—5.0LV8After Serial Number BEO, 001; Stock
1986FordBronco—5.8LV8Stock
1986FordE-150 Econoline—5.8LV8Stock
1986FordE-150 Econoline Club Wagon—5.8LV8Stock
1986FordE-250 Econoline—5.8LV8Stock
1986FordE-250 Econoline Club Wagon—5.8LV8Stock
1986FordE-350 Econoline—5.8LV8Stock
1986FordE-350 Econoline Club Wagon—5.8LV8Stock
1986FordF-150—5.8LV8Stock
1986FordF-200—5.0LV8After Serial Number BEO, 001; Stock
1986FordF-250—5.8LV8Stock
1986FordF-350—5.8LV8Stock
1986FordLTD—5.0LV8Stock
1986FordMustang—5.0LV8Stock
1986FordThunderbird—5.0LV8Stock
1986LincolnContinental—5.0LV8Stock
1986LincolnMark VII—5.0LV8Stock
1986LincolnTown Car—5.0LV8Stock
1986MercuryCapri—5.0LV8Stock
1986MercuryCougar—5.0LV8Stock
1986MercuryGrand Marquis—5.0LV8Stock
1985FordB-150—5.0LV8After Serial Number BEO, 001; Stock
1985FordB-200—5.0LV8After Serial Number BEO, 001; Stock
1985FordBronco—5.8LV8Stock
1985FordE-150 Econoline—5.8LV8Stock
1985FordE-150 Econoline Club Wagon—5.8LV8Stock
1985FordE-250 Econoline—5.8LV8Stock
1985FordE-250 Econoline Club Wagon—5.8LV8Stock
1985FordE-350 Econoline—5.8LV8Stock
1985FordE-350 Econoline Club Wagon—5.8LV8Stock
1985FordF-150—5.8LV8Stock
1985FordF-250—5.8LV8Stock
1985FordF-350—5.8LV8Stock
1985FordLTD—5.0LV8Stock
1985FordMustang—5.0LV8Stock
1985FordThunderbird—5.0LV8Stock
1985LincolnContinental—5.0LV8Stock
1985LincolnMark VII—5.0LV8Stock
1985LincolnTown Car—5.0LV8Stock
1985MercuryCapri—5.0LV8Stock
1985MercuryCougar—5.0LV8Stock
1985MercuryGrand Marquis—5.0LV8Stock
1984FordB-150—5.0LV8After Serial Number BEO, 001; Stock
1984FordBronco—5.8LV8Stock
1984FordE-150 Econoline—5.8LV8Stock
1984FordE-150 Econoline Club Wagon—5.8LV8Stock
1984FordE-250 Econoline—5.8LV8Stock
1984FordE-250 Econoline Club Wagon—5.8LV8Stock
1984FordE-350 Econoline—5.8LV8Stock
1984FordE-350 Econoline Club Wagon—5.8LV8Stock
1984FordF-150—5.8LV8Stock
1984FordF-250—5.8LV8Stock
1984FordF-350—5.8LV8Stock
1984FordLTD—5.8LV8Stock
1984FordMustang—5.0LV8Stock
1984FordThunderbird—5.0LV8Stock
1984LincolnContinental—5.0LV8Stock
1984LincolnMark VII—5.0LV8Stock
1984LincolnTown Car—5.0LV8Stock
1984MercuryCapri—5.0LV8Stock
1984MercuryCougar—5.0LV8Stock
1984MercuryGrand Marquis—5.0LV8Stock
1983FordB-150—5.0LV8After Serial Number BEO, 001; Stock
1983FordBronco—5.8LV8Stock
1983FordE-100 Econoline—5.8LV8Stock
1983FordE-100 Econoline Club Wagon—5.8LV8Stock
1983FordE-150 Econoline—5.8LV8Stock
1983FordE-150 Econoline Club Wagon—5.8LV8Stock
1983FordE-250 Econoline—5.8LV8Stock
1983FordE-250 Econoline Club Wagon—5.8LV8Stock
1983FordE-350 Econoline—5.8LV8Stock
1983FordE-350 Econoline Club Wagon—5.8LV8Stock
1983FordF-100—5.0LV8After Serial Number BEO, 001; Stock
1983FordF-150—5.8LV8Stock
1983FordF-250—5.8LV8Stock
1983FordF-350—5.8LV8Stock
1983FordFairmont—5.0LV8Stock
1983FordLTD—5.8LV8Stock
1983FordMustang—5.0LV8Stock
1983FordThunderbird—5.0LV8Stock
1983LincolnContinental—5.0LV8Stock
1983LincolnMark VI—5.0LV8Stock
1983LincolnTown Car—5.0LV8Stock
1983MercuryCapri—5.0LV8Stock
1983MercuryCougar—5.0LV8Stock
1983MercuryGrand Marquis—5.0LV8Stock
1982FordB-150—5.0LV8After Serial Number BEO, 001; Stock
1982FordBronco—5.8LV8Stock
1982FordE-100 Econoline—5.8LV8Stock
1982FordE-100 Econoline Club Wagon—5.8LV8Stock
1982FordE-150 Econoline—5.8LV8Stock
1982FordE-150 Econoline Club Wagon—5.8LV8Stock
1982FordE-250 Econoline—5.8LV8Stock
1982FordE-250 Econoline Club Wagon—5.8LV8Stock
1982FordE-350 Econoline—5.8LV8Stock
1982FordE-350 Econoline Club Wagon—5.8LV8Stock
1982FordF-100—5.0LV8After Serial Number BEO, 001; Stock
1982FordF-150—5.8LV8Stock
1982FordF-250—5.8LV8Stock
1982FordF-350—5.8LV8Stock
1982FordFairmont—5.0LV8Stock
1982FordLTD—5.8LV8Stock
1982FordMustang—5.0LV8Stock
1982FordThunderbird—4.2LV8Stock
1982LincolnContinental—5.0LV8Stock
1982LincolnMark VI—5.0LV8Stock
1982LincolnTown Car—5.0LV8Stock
1982MercuryCapri—5.0LV8Stock
1982MercuryCougar—4.2LV8Stock
1982MercuryGrand Marquis—5.0LV8Stock
1982MercuryMarquis—5.0LV8Stock
1982MercuryZephyr—4.2LV8Stock
1981FordB-150—5.0LV8After Serial Number BEO, 001; Stock
1981FordBronco—5.8LV8Stock
1981FordE-100 Econoline—5.8LV8Stock
1981FordE-100 Econoline Club Wagon—5.8LV8Stock
1981FordE-150 Econoline—5.8LV8Stock
1981FordE-150 Econoline Club Wagon—5.8LV8Stock
1981FordE-250 Econoline—5.8LV8Stock
1981FordE-250 Econoline Club Wagon—5.8LV8Stock
1981FordE-350 Econoline—5.8LV8Stock
1981FordE-350 Econoline Club Wagon—5.8LV8Stock
1981FordF-100—5.0LV8After Serial Number BEO, 001; Stock
1981FordF-150—5.8LV8Stock
1981FordF-250—5.8LV8Stock
1981FordF-350—5.8LV8Stock
1981FordFairmont—5.0LV8Stock
1981FordGranada—4.2LV8Stock
1981FordLTD—5.8LV8Stock
1981FordMustang—5.0LV8Stock
1981FordThunderbird—5.0LV8Stock
1981LincolnMark VI—5.0LV8Stock
1981LincolnTown Car—5.0LV8Stock
1981MercuryCapri—4.2LV8Stock
1981MercuryCougar—5.0LV8Stock
1981MercuryGrand Marquis—5.8LV8Stock
1981MercuryMarquis—5.8LV8Stock
1981MercuryZephyr—4.2LV8Stock
1980FordB-100—5.0LV8After Serial Number BEO, 001; Stock
1980FordBronco—5.8LV8Stock
1980FordE-100 Econoline—5.8LV8Stock
1980FordE-100 Econoline Club Wagon—5.8LV8Stock
1980FordE-150 Econoline—5.8LV8Stock
1980FordE-150 Econoline Club Wagon—5.8LV8Stock
1980FordE-250 Econoline—5.8LV8Stock
1980FordE-250 Econoline Club Wagon—5.8LV8Stock
1980FordE-350 Econoline—5.8LV8Stock
1980FordE-350 Econoline Club Wagon—5.8LV8Stock
1980FordF-100—5.0LV8After Serial Number BEO, 001; Stock
1980FordF-150—5.8LV8Stock
1980FordF-250—5.8LV8Stock
1980FordF-350—5.8LV8Stock
1980FordFairmont—5.0LV8Stock
1980FordGranada—5.0LV8Stock
1980FordLTD—5.8LV8Stock
1980FordMustang—5.0LV8Stock
1980FordThunderbird—5.0LV8Stock
1980LincolnContinental—5.8LV8Stock
1980LincolnMark VI—5.0LV8Stock
1980LincolnVersailles—5.0LV8Stock
1980MercuryCapri—4.2LV8Stock
1980MercuryCougar—5.0LV8Stock
1980MercuryGrand Marquis—5.0LV8Stock
1980MercuryMarquis—5.0LV8Stock
1980MercuryMonarch—5.0LV8Stock
1980MercuryZephyr—4.2LV8Stock
1979FordB-100—5.0LV8After Serial Number BEO, 001; Stock
1979FordBronco—5.8LV8Stock
1979FordE-100 Econoline—5.8LV8Stock
1979FordE-100 Econoline Club Wagon—5.8LV8Stock
1979FordE-150 Econoline—5.8LV8Stock
1979FordE-150 Econoline Club Wagon—5.8LV8Stock
1979FordE-250 Econoline—5.8LV8Stock
1979FordE-250 Econoline Club Wagon—5.8LV8Stock
1979FordE-350 Econoline—5.8LV8Stock
1979FordE-350 Econoline Club Wagon—5.8LV8Stock
1979FordF-100—5.8LV8Stock
1979FordF-150—5.8LV8Stock
1979FordF-250—5.8LV8Stock
1979FordF-350—5.8LV8Stock
1979FordFairmont—5.0LV8Stock
1979FordGranada—5.0LV8Stock
1979FordLTD—5.8LV8Stock
1979FordLTD II—5.8LV8Stock
1979FordMustang—5.0LV8Stock
1979FordRanchero—5.8LV8Stock
1979FordThunderbird—5.8LV8Stock
1979LincolnVersailles—5.0LV8Stock
1979MercuryCapri—5.0LV8Stock
1979MercuryCougar—5.8LV8Stock
1979MercuryGrand Marquis—5.8LV8Stock
1979MercuryMarquis—5.8LV8Stock
1979MercuryMonarch—5.0LV8Stock
1979MercuryZephyr—5.0LV8Stock
1978FordB-100—5.0LV8After Serial Number BEO, 001; Stock
1978FordBronco—5.8LV8Stock
1978FordE-100 Econoline—5.8LV8Stock
1978FordE-100 Econoline Club Wagon—5.8LV8Stock
1978FordE-150 Econoline—5.8LV8Stock
1978FordE-150 Econoline Club Wagon—5.8LV8Stock
1978FordE-250 Econoline—5.8LV8Stock
1978FordE-250 Econoline Club Wagon—5.8LV8Stock
1978FordE-350 Econoline—5.8LV8Stock
1978FordE-350 Econoline Club Wagon—5.8LV8Stock
1978FordF-100—5.8LV8Stock
1978FordF-150—5.8LV8Stock
1978FordF-250—5.8LV8Stock
1978FordF-350—5.8LV8Stock
1978FordLTD—5.8LV8Stock
1978FordLTD II—5.8LV8Stock
1978FordRanchero—5.8LV8Stock
1978FordThunderbird—5.8LV8Stock
1978MercuryCougar—5.8LV8Stock
1978MercuryGrand Marquis—5.8LV8Stock
1978MercuryMarquis—5.8LV8Stock
Directly replaces or cross-references 15 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Pioneer Automotive Industries — RK-889-B41-2548181-1035181-105444116K36800121411253680016R-879R-1048RA-5004KRK-537RK-548RK548RM102