Sealed Power 5107M Engine Crankshaft Main Bearing Set

Overview of Sealed Power 5107M Main Bearing Set

The Sealed Power 5107M engine crankshaft main bearing set is designed as an OE replacement for Ford small block 351W Windsor engines from 1969 to 1976. This main set is engineered to meet the specific needs of classic Ford and Mercury vehicles, ensuring reliable engine performance and durability.

• Compatible with Ford and Mercury models including Mustang, Thunderbird, Cougar, and Econoline series
• Engineered for 351W small block Windsor engines, displacement 351 cubic inches
• Constructed from overplated copper-lead alloy for enhanced wear resistance
• Includes a complete main bearing set with standard and undersized options (Std, -1, -10, -20, -30, -40)
• Part number 5107M ensures precise fit and OEM quality replacement

Product Details and Specifications

The Sealed Power 5107M main bearing set is manufactured specifically for Ford’s small block 351W Windsor engine family, covering model years 1969 through 1976. This set is made from an overplated copper-lead alloy, providing a balance of durability and performance under typical operating conditions. The set includes multiple size options, allowing for precise fitment during engine rebuilds or repairs. It is compatible with a range of Ford and Mercury vehicles such as the Mustang, Thunderbird, Cougar, and various Econoline vans including E-100, E-150, E-250, and E-350 models, as well as full-size sedans like the Grand Marquis and LTD.

Common Applications and Problem Resolution

• Replacement of worn or damaged main bearings in 351W Windsor engines
• Addressing engine knocking or excessive crankshaft end play
• Restoring proper oil clearance to prevent bearing failure
• Supporting engine rebuilds for classic Ford and Mercury vehicles
• Correcting bearing wear caused by contamination or overheating

Installation Notes and Tips

When installing the Sealed Power 5107M main bearing set, ensure the crankshaft journals are properly measured to select the correct bearing size from the included standard and undersized options. Clean all bearing surfaces thoroughly before installation to prevent premature wear. Use proper torque specifications for main bearing caps and verify oil clearance with plastigage or a micrometer. It is recommended to inspect the crankshaft for scoring or damage prior to installation to ensure optimal bearing performance.

Quality Assurance and Warranty

Sealed Power manufactures the 5107M main bearing set to meet OEM standards for fit, form, and function. The use of overplated copper-lead alloy material provides reliable wear resistance and durability. This product is backed by Sealed Power’s quality assurance processes, ensuring consistent performance for engine rebuilds. Warranty coverage details are available through Sealed Power and typically cover defects in material and workmanship under normal use.