AEM PTFE Aluminum AN-4 45 Degree Fitting Black Adapter

Provides a 45-degree AN-4 connection, the AEM PTFE Aluminum AN-4 45 Degree Fitting Black Adapter improves hose routing reliability and helps reduce seal stress under confined routing conditions.

This adapter combines a PTFE-lined interface with an aluminum body and a black finish to deliver a corrosion-resistant connection for AN-4 fluid lines. Its 45° orientation simplifies routing around chassis and engine components where a straight fitting would create sharp bends or tension.

• Type: AN-4 45° adapter (PTFE-lined)
• Material: Aluminum body with PTFE internal lining
• Finish: Black
• Vendor: Mishimoto

Why this matters:

• PTFE lining — provides a chemically inert flow surface that maintains fluid compatibility and minimizes internal wear.
• 45° configuration — reduces hose bending radius and mechanical stress at the connection, aiding long-term sealing reliability in tight installations.
• Aluminum construction — offers a balance of strength and reduced mass compared with heavier metals while providing durable structural support for threaded connections.
• Black finish — provides a low-reflectance appearance for installations where visual integration and corrosion resistance are desired.

Application notes:

• Use this adapter where AN-4 fittings and PTFE-lined hose compatibility are required and where a 45° change of direction improves routing or reduces hose strain.
• Inspect threads and sealing surfaces for compatibility with existing AN fittings and torque to manufacturer specifications for a leak-free installation.