660-06-BLK 3/8_NPT to 5/8_ temp probe

Speedflow 660-06-BLK | 3/8" NPT to 5/8" Temperature Probe Adapter

Adapt your mechanical temperature probe to a standard 3/8" NPT port with this precision-machined fitting from Speedflow. Designed for reliable, leak-free installation, it makes it easy to monitor engine, oil, or water temps using your preferred mechanical gauge sender.

Key Features

• 3/8" NPT male thread to 5/8" temperature probe socket
• Precision-machined aluminium construction
• Black anodised finish for corrosion resistance and a clean look
• Simple, direct fitment — no additional adapters needed

Ideal Applications

• Oil temperature monitoring — block, sump, or sandwich plate ports
• Water and coolant temperature gauge senders
• Transmission and differential temp probes
• Street, race, and project builds — Holden V8, Ford, Chev Small Block, LS, and more

Part Number: 660-06-BLK
SKU: SF660-06-BLK