BCBC IS129 Engine Oil Pump Intermediate Shaft

Engine Oil Pump Intermediate Shaft

This Melling engine oil pump intermediate shaft is a standard replacement part for stock applications. Made in the USA and built from stress proof steel, it is intended to complete a new oil pump installation with the correct shaft specification.

Key Features

• Standard replacement shaft for engine oil pump service
• Stress proof steel construction for added strength
• Made in the USA
• Length: 10.110 in. (256.80 mm)
• Shaft diameter: 0.312 in. (7.90 mm)

Detailed Description

Part number IS129 is a Melling oil pump shaft designed for domestic and import pump applications where a fresh intermediate shaft is needed during oil pump service. The shaft is specified as a standard replacement and is built from stress proof steel to address wear concerns such as metal fatigue, cracking, and twisting that can affect an older shaft even when it still looks serviceable. This part cross-references Monroe Shocks & Struts (e.g., 224-6175, 601-8135) for the same application. Use IS129 when replacing the oil pump shaft on compatible Ford and Mercury engines, including Ford Taurus, Ford Ranger, and Mercury Sable applications listed in the fitment data.

What It Is Used For

• Replacing a worn or fatigued oil pump intermediate shaft
• Restoring proper oil pump drive connection during pump service
• Addressing shaft cracking or twisting found during teardown
• Completing an oil pump replacement with a new shaft
• Servicing stock engine applications that use this shaft specification

Installation Notes and Tips

Verify shaft length and diameter against the original part before installation. Inspect the oil pump drive components for wear, scoring, or damage before assembly. This shaft is listed for stock applications, so confirm fitment by year, make, and model before ordering. Fits 1986-2007 Ford Taurus, N/A; Fits 1986-2005 Mercury Sable, N/A; Fits 1991-2002 Ford Ranger, N/A; Fits 1996-2001 Ford F-100 Ranger, N/A; Fits 1995-2000 Ford Windstar, N/A; Fits 1986-1997 Ford Aerostar, N/A; Fits 1992-1994 Ford Tempo, N/A; Fits 1992-1994 Mercury Topaz, N/A; Fits 1990-1992 Ford Probe, N/A.

Quality Assurance

Melling recommends replacing the oil pump shaft whenever a new oil pump is installed. The brand notes that the shaft is a critical wear item and supplies shafts for a wide range of domestic and import pump applications.