BCBC IS-84A Engine Oil Pump Intermediate Shaft
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BCBC IS-84A Engine Oil Pump Intermediate Shaft

Brand BCBC IS-84A
Length 214.35
Length 8.440
Shaft Material Stress proof steel
Grade Type Standard replacement
Shaft Diameter 0.312
Shaft Diameter 7.90
Product line Stock
Fits Ford, Lincoln, and Mercury · 175 vehicles

Standard replacement. Built for stock-style oil pump service with direct part identification.

Stress-proof steel. Material choice helps resist fatigue, cracking, and twisting damage.

Made in the USA. Manufactured domestically as part of Melling's oil pump shaft line.

Cross-references Melling IS-84A, Pioneer Automotive Industries OPI-84-A and Sealed Power 224-61166 for the same application. See all 14.

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Engine Oil Pump Intermediate Shaft

This Melling engine oil pump intermediate shaft is a standard replacement part for a wide range of Ford, Lincoln, and Mercury applications. Part number IS-84A is made in the USA and built to complete an oil pump service with the correct shaft specification.

Key Features

  • Standard replacement engine oil pump intermediate shaft
  • Made from stress-proof steel for strength and durability
  • Made in the USA
  • 8.440-inch overall length with 0.312-inch shaft diameter
  • Part number IS-84A for direct identification

Detailed Description

The Melling IS-84A is an engine oil pump intermediate shaft intended for stock-style applications across many classic Ford, Lincoln, and Mercury models. It is specified as a standard replacement shaft and uses stress-proof steel to address wear concerns associated with fatigue, cracking, and twisting in an older shaft. This part number IS-84A is commonly selected when servicing the oil pump system on vehicles such as the Ford F-150, Ford Bronco, and Mercury Cougar.

Melling recommends replacing the shaft whenever a new oil pump is installed so the pump assembly is completed with a fresh drive component. The listed dimensions are 8.440 inches in length and 0.312 inch in diameter, which helps confirm the correct fit for the application. This part cross-references Pioneer Automotive Industries OPI-84-A and Sealed Power 224-61166 for the same application.

What It Is Used For

  • Replacing a worn or fatigued oil pump drive shaft
  • Addressing cracking or twisting damage in the original shaft
  • Completing an oil pump replacement with the correct matching shaft
  • Restoring proper oil pump drive connection in stock applications

Installation Notes and Tips

Verify the shaft length and diameter against the original part before installation. This component is listed for stock applications only, so confirm the vehicle year, make, and model in the fitment data before ordering. Inspect the oil pump and related drive components for wear before assembly.

Quality Assurance

Melling identifies this shaft as a standard replacement part and notes that it is made in the USA. The brand positions this component as part of its complete line of oil pump shafts for domestic and import pump applications.

Related reading

This part fits 175 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
1982FordE-250 Econoline Club Wagon—6.6LV8Stock
1982FordE-350 Econoline—6.6LV8Stock
1982FordE-350 Econoline Club Wagon—6.6LV8Stock
1982FordF-250—6.6LV8Stock
1982FordF-350—6.6LV8Stock
1981FordBronco—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-150—5.8LV8Stock
1981FordF-250—5.8LV8Stock
1981FordF-350—5.8LV8Stock
1980FordBronco—5.8LV8Stock
1980FordE-100 Econoline—6.6LV8Stock
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-150—5.8LV8Stock
1980FordF-250—5.8LV8Stock
1980FordF-350—5.8LV8Stock
1980LincolnContinental—5.8LV8Stock
1980LincolnMark VI—5.8LV8Stock
1980MercuryGrand Marquis—5.8LV8Stock
1980MercuryMarquis—5.8LV8Stock
1979FordBronco—5.8LV8Stock
1979FordF-100—5.8LV8Stock
1979FordF-150—5.8LV8Stock
1979FordF-250—5.8LV8Stock
1979FordF-350—5.8LV8Stock
1979FordLTD II—5.8LV8Stock
1979FordRanchero—5.8LV8Stock
1979FordThunderbird—5.8LV8Stock
1979LincolnContinental—6.6LV8Stock
1979LincolnMark V—6.6LV8Stock
1979MercuryCougar—5.8LV8Stock
1978FordBronco—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
1978LincolnContinental—6.6LV8Stock
1978LincolnMark V—6.6LV8Stock
1978MercuryCougar—5.8LV8Stock
1978MercuryGrand Marquis—5.8LV8Stock
1978MercuryMarquis—5.8LV8Stock
1977FordCustom 500—5.8LV8Stock
1977FordF-100—5.8LV8Stock
1977FordF-150—5.8LV8Stock
1977FordF-250—5.8LV8Stock
1977FordF-350—5.8LV8Stock
1977FordLTD—5.8LV8Stock
1977FordLTD II—5.8LV8Stock
1977FordP-500—6.6LV8Stock
1977FordRanchero—5.8LV8Stock
1977FordThunderbird—5.8LV8Stock
1977LincolnContinental—6.6LV8Stock
1977LincolnMark V—6.6LV8Stock
1977MercuryCougar—5.8LV8Stock
1977MercuryGrand Marquis—6.6LV8Stock
1977MercuryMarquis—6.6LV8Stock
1976FordCustom 500—5.8LV8Stock
1976FordElite—5.8LV8Stock
1976FordGran Torino—5.8LV8Stock
1976FordLTD—5.8LV8Stock
1976FordP-350—6.6LV8Stock
1976FordP-400—6.6LV8Stock
1976FordP-500—6.6LV8Stock
1976FordRanchero—5.8LV8Stock
1976FordTorino—5.8LV8Stock
1976MercuryCougar—5.8LV8Stock
1976MercuryGrand Marquis—6.6LV8Stock
1976MercuryMarquis—6.6LV8Stock
1976MercuryMontego—5.8LV8Stock
1975FordCustom 500—5.8LV8Stock
1975FordElite—5.8LV8Stock
1975FordGran Torino—5.8LV8Stock
1975FordLTD—5.8LV8Stock
1975FordRanchero—5.8LV8Stock
1975FordTorino—5.8LV8Stock
1975MercuryCougar—5.8LV8Stock
1975MercuryGrand Marquis—6.6LV8Stock
1975MercuryMarquis—6.6LV8Stock
1975MercuryMontego—5.8LV8Stock
1974FordCountry Sedan—5.8LV8Stock
1974FordCountry Squire—5.8LV8Stock
1974FordCustom 500—5.8LV8Stock
1974FordGalaxie 500—5.8LV8Stock
1974FordGran Torino—5.8LV8Stock
1974FordLTD—5.8LV8Stock
1974FordRanch Wagon—5.8LV8Stock
1974FordRanchero—5.8LV8Stock
1974FordThunderbird—6.6LV8Stock
1974FordTorino—5.8LV8Stock
1974MercuryColony Park—5.8LV8Stock
1974MercuryCougar—5.8LV8Stock
1974MercuryMarquis—5.8LV8Stock
1974MercuryMontego—5.8LV8Stock
1974MercuryMonterey—5.8LV8Stock
1973FordCountry Sedan—5.8LV8Stock
1973FordCountry Squire—5.8LV8Stock
1973FordCustom 500—5.8LV8Stock
1973FordGalaxie 500—5.8LV8Stock
1973FordGran Torino—5.8LV8Stock
1973FordLTD—5.8LV8Stock
1973FordMustang—5.8LV8Stock
1973FordRanch Wagon—5.8LV8Stock
1973FordRanchero—5.8LV8Stock
1973FordThunderbird—6.6LV8Stock
1973FordTorino—5.8LV8Stock
1973MercuryColony Park—5.8LV8Stock
1973MercuryCougar—5.8LV8Stock
1973MercuryMarquis—5.8LV8Stock
1973MercuryMontego—5.8LV8Stock
1973MercuryMonterey—5.8LV8Stock
1972FordCountry Sedan—5.8LV8Stock
1972FordCountry Squire—5.8LV8Stock
1972FordCustom—5.8LV8Stock
1972FordCustom 500—5.8LV8Stock
1972FordGalaxie 500—5.8LV8Stock
1972FordGran Torino—5.8LV8Stock
1972FordLTD—5.8LV8Stock
1972FordMustang—5.8LV8Stock
1972FordRanch Wagon—5.8LV8Stock
1972FordRanchero—5.8LV8Stock
1972FordThunderbird—6.6LV8Stock
1972FordTorino—5.8LV8Stock
1972MercuryColony Park—5.8LV8Stock
1972MercuryCougar—5.8LV8Stock
1972MercuryMarquis—5.8LV8Stock
1972MercuryMontego—5.8LV8Stock
1972MercuryMonterey—5.8LV8Stock
1971FordCountry SedanBase5.8LV8Stock
1971FordCountry SquireBase5.8LV8Stock
1971FordCustomBase5.8LV8Stock
1971FordCustom 500Base5.8LV8Stock
1971FordGalaxie 500Base5.8LV8Stock
1971FordLTDBrougham5.8LV8Stock
1971FordMustangMach 15.8LV8Stock
1971FordRanch WagonBase5.8LV8Stock
1971FordRanchero—5.8LV8Stock
1971FordThunderbird—6.6LV8Stock
1971FordTorinoSquire5.8LV8Stock
1971MercuryColony Park—5.8LV8Stock
1971MercuryCougar—5.8LV8Stock
1971MercuryCyclone—5.8LV8Stock
1971MercuryMarquis—5.8LV8Stock
1971MercuryMontego—5.8LV8Stock
1971MercuryMonterey—5.8LV8Stock
1970FordCountry Sedan—5.8LV8Stock
1970FordCountry Squire—5.8LV8Stock
1970FordCustom—5.8LV8Stock
1970FordCustom 500—5.8LV8Stock
1970FordFairlane—5.8LV8Stock
1970FordFalcon—5.8LV8Stock
1970FordGalaxie 500—5.8LV8Stock
1970FordLTD—5.8LV8Stock
1970FordMustang—5.8LV8Stock
1970FordRanch Wagon—5.8LV8Stock
1970FordRanchero—5.8LV8Stock
1970FordTorino—5.8LV8Stock
1970MercuryColony Park—5.8LV8Stock
1970MercuryCougar—5.8LV8Stock
1970MercuryCyclone—5.8LV8Stock
1970MercuryMarquis—5.8LV8Stock
1970MercuryMontego—5.8LV8Stock
1970MercuryMonterey—5.8LV8Stock
1969MercuryComet—5.8LV8Stock
1969MercuryCyclone—5.8LV8Stock
1969MercuryMontego—5.8LV8Stock
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Melling — IS-84APioneer Automotive Industries — OPI-84-ASealed Power — 224-6116661-166601-143153032BIS-84ADIS-84ADOAZ-6A618-ADS-159HIS84AIS84AOP322TS-84-A