Description
Product Overview
The WEITARI Blower Motor Relay (model 25230-79942SW) is a high‑quality replacement part designed for automotive HVAC systems. Constructed with a silver alloy contact, the relay offers superior conductivity and resistance to corrosion, ensuring consistent airflow control even under demanding conditions. Its plug‑in connector type simplifies wiring, while the DIN rail mounting style provides a secure, space‑saving installation on the vehicle’s relay board. The relay operates in an automatic mode, closing the circuit when the blower motor demand signal is present and opening it when the signal ceases, protecting the motor from overheating and extending its service life. With a compact chrome‑finished exterior and a lightweight design of just 2.82 ounces, this component meets OEM specifications and fits seamlessly into the engine bay.
Usage

Designed for a wide array of Nissan and Infiniti models—including the EX35, FX45, G35, M35, Altima, Armada, Juke, Leaf, Maxima, Murano, and many commercial trucks—this relay is ideal for both passenger cars and light‑duty vans. It is particularly useful for owners experiencing intermittent blower motor operation, reduced cabin heating, or HVAC system warnings. Installation requires only basic hand tools and can be performed by experienced DIYers or professional technicians. The plug‑in design eliminates the need for splicing wires, reducing installation time and potential error points. Once installed, the relay automatically manages blower motor current, delivering smooth and quiet operation across all fan speeds.
Why Choose Us
WEITARI is a trusted brand in automotive electrical components, known for rigorous quality control and adherence to OEM standards. Each relay undergoes thorough testing for contact resistance, dielectric strength, and thermal performance, guaranteeing reliability in harsh automotive environments. The 12‑month warranty underscores our confidence in product durability, and our responsive customer service is ready to assist with any installation questions. By choosing this relay, you benefit from a component that matches the original part number (25230‑79942), ensuring perfect fit and function without the risk of compatibility issues.
Key Features
- Silver alloy contacts provide high conductivity and corrosion resistance.
- Plug‑in connector type simplifies wiring and reduces installation time.
- DIN rail mounting offers a secure, space‑efficient fit on relay boards.
- Automatic operation mode protects the blower motor from overload.
- Broad vehicle compatibility covering Nissan, Infiniti and Nissan commercial models from 2002‑2017.
FAQ
Is this relay a direct replacement for the OEM part?
Yes, the WEITARI relay matches the original equipment part number 25230‑79942, ensuring a perfect fit and identical electrical performance.
Can I install this relay myself?
Absolutely. The plug‑in design and DIN rail mounting allow a DIY installation with basic tools. However, if you are unfamiliar with automotive electrical work, professional installation is recommended.
What warranty does the relay come with?
The product includes a 12‑month warranty covering defects in materials and workmanship. Contact us through Amazon messaging for any warranty claims.
Will this relay work with my 2005 Nissan Maxima?
Yes, the relay is compatible with Maxima model years 2005‑2014, among many other Nissan and Infiniti vehicles listed in the compatibility section.
How does the automatic operation mode benefit my vehicle?
The automatic mode ensures the relay only closes when the blower motor signal is present, preventing unnecessary current flow and protecting the motor from overheating, which extends its lifespan.





Mazda Blower Motor Relay Through Hole Silver
Reviews
There are no reviews yet.