M0042501R Nordyne Heat Exchanger
M0042501R Nordyne Heat Exchanger
Must be shipped via freight truck
Upgrade your furnace’s heating efficiency and reliability with the genuine Nordyne M0042501R primary heat exchanger. Precision-engineered to Nordyne’s exact specifications, this aluminized-steel tubular exchanger restores optimal combustion, maximizes heat transfer, and extends service life in compatible gas furnaces.
Key Features
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Direct OEM replacement for Nordyne part M0042501R
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Tubular, multi-pass design for superior heat transfer
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Aluminized-steel construction resists corrosion and thermal stress
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Pre-assembled with mounting brackets for drop-in installation
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Pressure-tested to factory standards for leak-free operation
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Compatible with original burner and inducer assemblies
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | M0042501R |
| Material | Aluminized steel |
| Design | Multi-pass tubular exchanger |
| Construction | TIG-welded seams |
| Tested Pressure | 5 psi (factory-tested) |
| Mounting Brackets | Included |
| Application | Primary heat exchanger only |
| Warranty | 1 year limited OEM coverage |
Compatibility
This heat exchanger fits Nordyne/Miller/Intertherm single-stage gas furnaces in the M1 series and select M2/E-series models:
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Nordyne M1MB and M1SB upflow/downflow furnaces
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Miller M1MB and M1SB mobile-home gas furnaces
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Intertherm
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Capacity range: 45 000 – 90 000 BTU input models
If your furnace’s data plate reads M1MB-xxxA or M1SB-xxxA (045, 056, 070, 086, 090), this is your direct-fit exchanger.
Installation Notes
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Always disconnect power and gas supply before servicing
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Verify model number on data plate matches M1 series designation
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Remove manifold assembly and old exchanger per OEM instructions
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Install new exchanger with supplied brackets; torque to factory specs
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Reassemble burner, inducer, and control wiring; perform leak test
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Follow combustion analysis procedure to reset gas pressure