Description
The Weil McLain 383-500-775 is an OEM replacement heat exchanger designed specifically for the Ultra 155 Series 3 condensing boiler. When the heart of your hydronic heating system needs attention, this factory-matched component ensures your boiler is restored to its original performance specifications — delivering the high-efficiency, reliable heat transfer that the Ultra Series 3 platform is known for.
Product Overview
This heat exchanger replacement is engineered to fit the Weil McLain Ultra 155 Series 3 boiler with precision. Using a genuine OEM replacement part eliminates the guesswork of aftermarket compatibility and helps maintain the boiler’s rated efficiency and warranty compliance.
Key Features
- OEM replacement heat exchanger for Weil McLain Ultra 155 Series 3 boilers
- Direct drop-in replacement — engineered for precise fit and function
- Restores original heat transfer performance and boiler efficiency
- Manufactured to Weil McLain quality standards
- Helps maintain boiler warranty compliance when using genuine parts
- Compatible with the Ultra 155 S3 condensing boiler platform
Application
- Designed for: Weil McLain Ultra 155 Series 3 condensing boiler
- Application: Residential and light commercial hydronic heating systems
- Part Type: Heat exchanger replacement
Why Choose a Genuine Weil McLain Replacement Part?
Using the correct OEM heat exchanger ensures your Ultra 155 Series 3 boiler operates at its designed efficiency rating. Aftermarket substitutes may not meet the dimensional or material tolerances required for safe, long-term operation. Trust Weil McLain’s engineering to keep your system running at peak performance season after season.
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