Back Body Bearing

The Back Body Bearing (Part S5K) from Stock Car Productions Oil Pumps is a precision replacement bearing engineered for marine oil pump assemblies. This component maintains critical bearing surfaces within oil pump back body housings, ensuring consistent lubrication flow and pressure regulation in high-demand marine engines. The bearing's compact 2.4 x 0.45 x 2.85-inch design integrates seamlessly into existing oil pump configurations without modification, making it an ideal maintenance replacement for anglers and boat operators managing aging powerplants.

Marine engines depend on uninterrupted oil delivery to prevent bearing seizure, piston scoring, and catastrophic failure. A worn or damaged oil pump bearing reduces pressure delivery, starves critical engine surfaces of lubricant, and leads to increased operating temperatures and metal-on-metal contact. The SCP S5K bearing restores original bearing clearances and load-carrying capacity, enabling the oil pump to maintain factory specification pressure curves across the full RPM range. At 0.04 lbs, this lightweight component carries no ballast penalty while delivering structural integrity where it counts most—at the bearing interface where pump shaft rotation generates continuous stress.

This bearing suits both weekend fishing boat operators performing routine maintenance and serious offshore anglers operating in salt-air and high-hour environments where oil system reliability directly impacts safety and uptime. Engine rebuild shops and diesel specialists rely on Stock Car Productions parts for OEM-quality replacements that restore pump function without sourcing complete pump assemblies. The S5K back body bearing is sold individually, allowing targeted repair of pump wear without unnecessary component replacement.

Stock Car Productions has built its reputation on precision oil pump components for the racing and marine markets, where lubrication system failure is not an option. This bearing reflects that heritage—engineered to OEM tolerances and backed by a manufacturer with deep expertise in pump hydraulics and bearing design. Verify your current pump model against the S5K part number before ordering to ensure fitment with your specific oil pump assembly.