FAG SR3548 Engine Crankshaft Repair Sleeve - Rear

FAG SR3548 Crankshaft Repair Sleeve

The FAG SR3548 engine crankshaft repair sleeve restores sealing performance on worn or damaged shaft surfaces without removing the shaft for machining. Built from heat-treated stainless steel, it provides a precise sealing surface for engine repair work where crankshaft wear has affected oil control.

For technicians servicing engine hardware on applications such as Honda Civic and Toyota Corolla, this repair sleeve offers a direct way to address shaft surface damage while keeping the repair process efficient. The FAG SR3548 is sized for a 3.125 in. shaft diameter and a 3.531 in. flange diameter.

Key Features

• Precision crankshaft repair sleeve for damaged sealing surfaces
• Heat-treated stainless steel construction for wear resistance
• 3.125 in. shaft diameter and 3.531 in. flange diameter
• 1.000 in. overall width with 0.813 in. width on shaft
• 2.000 in. installation depth for controlled placement
• FAG SR3548 replacement part for engine crankshaft repair applications

Detailed Description

The FAG SR3548 is an engine crankshaft repair sleeve used to restore a smooth sealing surface on shafts that have been damaged by wear, scoring, or seal contact. By creating a new running surface, it helps maintain proper sealing at the crankshaft area and can extend service life without requiring shaft removal or machining. This makes it a practical repair choice for engine rebuilds and maintenance work where downtime and machining costs matter.

This part cross-references National 99312 for the same application. The FAG SR3548 is also referenced by interchange number 4133548100, making it easier to match during parts lookup for Honda Civic and Toyota Corolla engine repair jobs.

What It Helps Fix

• Oil leakage at a worn crankshaft sealing surface
• Seal wear caused by grooves or scoring on the shaft
• Premature seal failure from surface damage
• Costly crankshaft replacement or machining requirements
• Reduced sealing performance during engine repair

Installation Notes and Tips

Measure the shaft diameter and flange area before installation to confirm the FAG SR3548 dimensions match the repair surface. Clean the shaft thoroughly so the sleeve seats evenly, and verify installation depth during placement to maintain proper seal alignment. Because this repair sleeve is used on damaged surfaces, inspect the seal lip and surrounding components before reassembly.

Quality Assurance

FAG manufactures precision repair components for engine service applications, and the SR3548 is made from heat-treated stainless steel to support durable sealing repair on worn shafts.