3/4″ T-Bushing IsoFlex IFC-1619

The IsoFlex IFC-1619 3/4″ T-Bushing is a precision-machined mounting insert designed for IsoFlex flexible shaft coupling systems. This bushing ensures proper alignment and secure mounting between gearbox output flanges and propeller shaft couplings, allowing smooth power transfer while reducing vibration and drivetrain stress.

T-bushings are essential in flexible coupling assemblies, helping maintain correct bolt alignment while absorbing shock loads and minimizing wear on connected components. This improves the longevity of couplings, shafts, and transmission systems.

The IFC-1619 is specifically designed for 3/4″ (19 mm) bolt applications, commonly used in marine driveline systems and IsoFlex coupling conversions.

Key Features

• Genuine IsoFlex coupling component
• 3/4″ (19 mm) T-bushing design
• Ensures proper flange alignment and fitment
• Reduces vibration and drivetrain shock
• Durable corrosion-resistant steel construction
• Designed for IsoFlex flexible coupling systems

Compatibility

IsoFlex Coupling Systems

Compatible with:

• IsoFlex flexible shaft couplings
• Multi-bolt flange systems (4, 6, and 8 bolt patterns)
• Coupling conversions from metric to imperial bolt sizing

Commonly used where M16 to 3/4″ conversions are required

Marine Driveline Applications

Used in:

• Inboard marine engines
• Shaft-driven propulsion systems
• Gearbox output flange connections
• Propeller shaft coupling assemblies

Serial Number Fitment Notice

Fitment depends on:

• Coupling model
• Flange bolt size (3/4″ required)
• Driveline configuration

Always confirm compatibility with your coupling system and flange bolt size before ordering.

Specifications

• Part Number: IFC-1619
• Size: 3/4″ (19 mm)
• Type: T-Bushing
• Material: Corrosion-resistant steel
• Application: Flexible coupling mounting insert

Whats Included

• (1) IsoFlex 3/4″ T-Bushing

When This Part Needs Replacement

Replace if you notice:

• Excessive play or looseness in coupling
• Corrosion or wear on bushing
• Vibration or alignment issues
• During coupling rebuild or service

Installation Notes

• Install bushings evenly across flange
• Torque bolts to manufacturer specifications
• Ensure proper shaft alignment before final tightening
• Use with compatible IsoFlex coupling components

Alternate / Superseded Part Numbers

OEM Cross References

• IsoFlex: IFC-1619

Shipping

Shipping: Ships same or next day for fast Canada wide shipping.

Parts Desk Insight

These are often used when adapting European driveline setups to imperial hardware. If you’re mixing metric and SAE components, this little part becomes critical