BCBC IS-83 Engine Oil Pump Intermediate Shaft

Overview

The Melling IS-83 engine oil pump intermediate shaft is a standard replacement part for Ford and Mercury applications that use a stock-style oil pump drive. Made in the USA and built from stress proof steel, it is intended to replace a shaft that may have fatigue, cracking, or twist damage even when it still looks serviceable. This part is a direct fit for a wide range of classic Ford and Mercury V8 applications, including Ford F-150, Ford F-250, and Ford Mustang models listed below.

Key Features

• Standard replacement engine oil pump intermediate shaft
• Stress proof steel construction for drive-shaft durability
• Made in the USA
• Length: 8.190 in. / 208.00 mm
• Shaft diameter: 0.312 in. / 7.90 mm
• Part number IS-83 for easy identification

Detailed Description

The Melling IS-83 is designed for stock oil pump applications where the intermediate shaft transfers drive from the distributor to the oil pump. Because the shaft can suffer hidden fatigue or twisting over time, replacing it during an oil pump service helps restore dependable pump drive integrity. This part cross-references Four Seasons 53030 and Standard Ignition TS-83 for the same application. The IS-83 is a practical choice for classic Ford and Mercury engine builds that require the correct stock-style shaft dimensions and material specification.

Vehicle Fitment

• Fits 1977-1997 Ford F-350, Stock
• Fits 1978-1996 Ford Bronco, Stock
• Fits 1975-1996 Ford E-150 Econoline, Stock
• Fits 1975-1996 Ford E-150 Econoline Club Wagon, Stock
• Fits 1975-1996 Ford E-250 Econoline, Stock
• Fits 1975-1996 Ford E-350 Econoline, Stock
• Fits 1977-1996 Ford E-350 Econoline Club Wagon, Stock
• Fits 1996 Ford Econoline Super Duty, Stock
• Fits 1977-1996 Ford F-150, Stock
• Fits 1977-1996 Ford F-250, Stock
• Fits 1975-1991 Ford E-250 Econoline Club Wagon, Stock
• Fits 1987-1991 Ford LTD Crown Victoria, Stock
• Fits 1969-1986 Ford LTD, Stock
• Fits 1975-1983 Ford E-100 Econoline, Stock
• Fits 1975-1983 Ford E-100 Econoline Club Wagon, Stock
• Fits 1981 Mercury Grand Marquis, Stock
• Fits 1978-1979 Mercury Grand Marquis, Stock
• Fits 1981 Mercury Marquis, Stock
• Fits 1978-1979 Mercury Marquis, Stock
• Fits 1971-1973 Mercury Marquis, Stock
• Fits 1980 Lincoln Continental, Stock
• Fits 1977-1979 Ford F-100, Stock
• Fits 1977-1979 Ford LTD II, Stock
• Fits 1969-1979 Ford Ranchero, Stock
• Fits 1977-1979 Ford Thunderbird, Stock
• Fits 1969-1979 Mercury Cougar, Stock
• Fits 1969-1977 Ford Custom 500, Stock
• Fits 1975-1977 Ford Granada, Stock
• Fits 1977 Lincoln Versailles, Stock
• Fits 1975-1977 Mercury Monarch, Stock
• Fits 1975-1976 Ford Elite, Stock
• Fits 1972-1976 Ford Gran Torino, Stock
• Fits 1969-1976 Ford Torino, Stock
• Fits 1969-1976 Mercury Montego, Stock
• Fits 1969-1974 Ford Country Sedan, Stock
• Fits 1969-1974 Ford Country Squire, Stock
• Fits 1969-1974 Ford Galaxie 500, Stock
• Fits 1969-1974 Ford Ranch Wagon, Stock
• Fits 1969-1974 Mercury Colony Park, Stock
• Fits 1970-1974 Mercury Monterey, Stock
• Fits 1969-1973 Ford Mustang, Stock
• Fits 1969-1972 Ford Custom, Stock
• Fits 1969-1971 Mercury Cyclone, Stock
• Fits 1969-1970 Ford Fairlane, Stock
• Fits 1969-1970 Ford Falcon, Stock
• Fits 1969 Mercury Comet, Stock

Common Uses

• Replacing a worn oil pump drive shaft during engine service
• Addressing hidden shaft fatigue or cracking found during teardown
• Restoring proper oil pump drive transfer in stock engine builds
• Correcting twist damage in older intermediate shafts
• Supporting maintenance on classic Ford and Mercury V8 applications

Installation Notes

Verify shaft length and diameter against the original part before installation. Inspect the oil pump, distributor drive, and related components for wear before reassembly. This shaft is intended for stock replacement use, so confirm the application matches the listed Ford, Mercury, or Lincoln fitment before service begins.

Quality Assurance

Melling supplies a broad range of oil pump shafts for domestic and import applications, and the IS-83 is manufactured in the USA. The stress proof steel construction and standard replacement specification support consistent service in stock oil pump assemblies.