Mechanical pool timers rely on precision trippers to control exactly when equipment turns on and off. When trippers become worn, lost, or damaged, timing accuracy suffers and pool equipment may fail to operate as scheduled. The Intermatic 156T1978A Time Switch Trippers – OEM ON/OFF Set is a genuine replacement kit designed to restore proper timing control in compatible Intermatic mechanical time switches.

This OEM set includes both an ON tripper and an OFF tripper, allowing pool pumps, lights, or other equipment to cycle correctly throughout the day. Designed to engage cleanly with the timer dial, these trippers provide reliable switching action and consistent daily operation.

Replacing worn trippers is a simple but essential maintenance step that helps keep pool systems running efficiently and predictably.

Restores Accurate Timer Scheduling

Mechanical timers depend on physical contact between the trippers and the switching mechanism. Over time, trippers can wear down or loosen, causing missed on/off cycles or inconsistent runtime.

The Intermatic 156T1978A ON/OFF trippers restore proper engagement with the timer mechanism, ensuring equipment turns on and off exactly when scheduled. This helps maintain correct circulation cycles, lighting schedules, and energy usage.

Because these are genuine OEM parts, they provide proper fit and dependable long-term performance.

Designed for Intermatic Mechanical Time Switches

These trippers are manufactured specifically for use with compatible Intermatic mechanical time switches, including T100 Series models. Proper sizing and threading ensure secure attachment to the timer dial without slipping or stripping.

Using OEM trippers helps preserve the integrity of the timer and prevents premature wear of internal components.

Simple Installation with Immediate Results

Installing replacement trippers is straightforward and requires no special tools. Once attached to the timer dial and tightened securely, the trippers immediately restore full scheduling functionality.

This makes them an ideal solution for quick repairs, routine maintenance, or keeping spare parts on hand.

Why Replacing Timer Trippers Matters

Small components play a big role in timer performance.

Replacing worn trippers helps:

• Restore accurate on/off scheduling

• Prevent equipment from running too long or not at all

• Improve energy efficiency

• Maintain predictable pool system operation

Proper timer function supports both equipment longevity and water quality.

Product Specifications

Buy with Confidence from Benchmark Pool Supply

When you purchase the Intermatic 156T1978A Time Switch Trippers – OEM ON/OFF Set from Benchmark Pool Supply, you’re buying from a locally owned pool supply retailer that understands real-world timer maintenance and equipment control.

Benchmark Pool Supply supports homeowners and service professionals with genuine replacement parts, knowledgeable guidance, and convenient online ordering with in-store pickup. We focus on correct-fit OEM components that keep pool systems running on schedule.