Special Features

【TECHNICAL SPECIFICATIONS】 303-1AH-S-R1 Relay features a 12V DC coil and heavy-duty 20A contact rating. This precision-engineered 4-pin (Terminals 30, 85, 86, 87) mini relay is designed to maintain circuit integrity in demanding off-road electrical systems
【VEHICLE ADAPTABILITY】 Precision-designed to be Compatible with Polaris Ranger, RZR, Sportsman, and various UTV/ATV models. This unit serves as an accurate Replacement for 303-1AH-S-R1, fitting periodically into factory relay panels and power distribution modules
【OFF-ROAD REPAIR SOLUTION】 Effectively addresses common electrical failures such as "fuel pump not priming," "cooling fan not engaging," or "power steering malfunctions." Replacing a faulty internal relay restores full functionality to your vehicle's engine management and accessory circuits
【WEATHERPROOF ARCHITECTURE】 Constructed with superior Silver Alloy contacts and a fully sealed, waterproof bottom to protect against moisture, dust, and vibration. This heavy-duty built design exceeds standard rigorous testing for reliable performance in wet, muddy, or harsh outdoor conditions
【SYSTEM MAINTENANCE SPARES】 This convenient multi-unit pack provides an immediate solution for DIY repairs and essential spares for your tool kit. Featuring a plug-and-play design for standard 4-pin sockets, it ensures a secure mechanical fit and minimal downtime without specialized tools

Description

Restore Reliable Off-Road Performance with 303-1AH-S-R1 20A Sealed Relays
When a UTV like the Polaris Ranger or RZR fails to start or the cooling fan stops cycling, a compromised power relay is frequently the single point of failure. Instead of facing potential engine stalling or overheating in remote areas, our 303-1AH-S-R1 compatible relay pack provides a professional-grade technical solution to restore stable power switching.
Robust Engineering for Muddy and Harsh Environments Rufus Tip: If your UTV fuel pump is failing to engage or your engine fan is struggling after a wet ride, this 12V 20A 4-pin sealed relay is the direct technical replacement for the 303-1AH-S-R1 model. Built with a fully sealed bottom and premium internal components, each relay is designed to handle both resistive and inductive loads, ensuring consistent performance in both extremely cold mornings and intense off-road heat.
Common Application Scenarios:
Fuel Pump Activation: Ensures stable fuel delivery for reliable engine ignition.

Cooling Fan Control: Prevents engine overheating during low-speed crawling.

Power Steering Fix: Restores responsive handling in compatible UTV models.

LED Accessory Switching: Reliable power supply for light bars, horns, and winches.

Detailed Technical Data:
Operating Voltage: 12V DC

Contact Rating: 20A (Heavy Duty)

Configuration: SPST-NO (Single Pole Single Throw, Normally Open)

Terminals: 4-Pin Standard Layout

Build: Heavy-Duty Built, Waterproof, and Dust-tight