Quicksilver 88031 Transmission Oil Temperature Switch for MerCruiser Marine

The Quicksilver 88031 is a genuine OEM transmission oil temperature switch designed for Mercury MerCruiser stern drives and marine engines equipped with Borg Warner transmissions. This critical safety component monitors transmission oil temperature and activates an alarm system when excessive heat is detected, helping prevent costly transmission damage.

Key Features:

• Activates alarm at 235 degrees Fahrenheit to warn of overheating conditions
• Normally open switch design for reliable operation
• Genuine Quicksilver OEM part ensures proper fit and function
• Direct replacement for Mercury part 87-813708
• Compatible with MerCruiser stern drive and inboard marine applications

Cross-Reference Numbers:

• Mercury/MerCruiser: 87-88031, 87-813708
• Crusader: 21088
• Pleasurecraft: R020037

This transmission temperature switch is an essential component of your marine engine's monitoring system, providing early warning of potential transmission problems before they become severe. When the transmission oil reaches 235 degrees, the switch closes the circuit to activate the audible alarm buzzer, alerting the operator to immediately address the overheating condition.