Automotive Crimp Terminal – ST710559-3 / ST710507-3 | 20pcs L & R Female

The ST710559-3 / ST710507-3 are precision automotive crimp terminals (sheath contacts) used in wire harness repair and connector assembly. Sold in 20-piece packs for Left (L) and Right (R) female variants. The L and R designation indicates the terminal orientation (left-hand or right-hand entry) for specific connector housing configurations.

Key Specifications

Why Crimp Terminals Fail

Automotive crimp terminals corrode from moisture ingress, vibration-induced fretting, and thermal cycling. Corroded or pushed-back terminals cause intermittent circuit faults, high resistance connections, and voltage drop issues. The L/R orientation ensures correct terminal insertion direction in housings with asymmetric contact cavities.

Variant Guide

• 20pcs L Female (ST710559-3) – Left-hand orientation female crimp contacts
• 20pcs R Female (ST710507-3) – Right-hand orientation female crimp contacts

Select the orientation (L or R) matching your connector housing cavity direction. Incorrect orientation will prevent proper terminal seating.

Installation Notes

• Verify the terminal orientation (L or R) matches your connector housing before crimping
• Strip wire insulation to 3–4mm before crimping
• Use a ratchet crimp tool rated for the appropriate wire gauge
• Insert terminal into connector housing until the locking tab clicks
• Pull-test each terminal after insertion to verify retention

Frequently Asked Questions

Q: What is the difference between L and R female terminals?
A: L (Left) and R (Right) designate the terminal entry orientation for asymmetric connector housings. The correct orientation ensures the terminal seats properly and the locking tab engages correctly.

Q: What connector housings are compatible with ST710559-3 / ST710507-3?
A: Cross-reference the ST710559-3 / ST710507-3 part numbers with your connector housing specification to confirm compatibility.

Common Applications

• Orientation-specific connector harness repair
• Sensor and actuator circuit terminal replacement
• Body electrical harness re-pinning
• Custom automotive wiring with asymmetric connector housings