Need a replacement heat pump fan blade that delivers smooth airflow and durable performance? This guide compares five well-matched options and explains who each is best for. Each product section explains suitability, key features, and a clear caution to help you decide quickly.
| Product | Brand | Diameter | Main Benefit |
|---|---|---|---|
| 98M18 Condenser Fan Blade | superbobi | 18 in | High compatibility with Lennox condensers |
| B1086748S Condenser Fan Blade | Goodman | 22 in | Reliable 3-blade design for steady airflow |
| B1086750SP Condenser Fan Blade | Goodman | 22 in | U.S.-made build with 27-degree pitch |
| 70-100580-04 Condenser Fan Blade | Ruud | 24 in | Solid replacement for Ruud units |
| 3313107.015 RV Condenser Fan Blade | CCTP | 10-1/2 in diameter (RV units) | RV/Dometic compatibility for Brisk Air/Duo-Therm |
98M18 Condenser Fan Blade for Lennox Condensers
The 98M18 blade is designed for Lennox condensers and replaces Lennox 100060-07. It features three blades, an 18-inch diameter, and a 27-degree pitch with a 1/2-inch bore. This blade is CCW with opposite hub side and operates on DC 12V, drawing about 3 watts. Best for Lennox systems and Revcor/other compatible brands listed in its specs. Choose this if your heat pump uses Lennox-compatible 98M18 blades and you want robust aluminum construction for longevity.
Who it’s best for: homeowners with Lennox-oriented units seeking a direct replacement that preserves airflow and motor clearance. Why selected: broad compatibility with Lennox models and several third-party references, plus a durable aluminum build. Caution: verify shaft bore and hub orientation before ordering to avoid mismatches.
B1086748S Goodman Condenser Fan Blade
This is a 3-blade blade designed as a direct replacement for Goodman condensers. It’s positioned for reliability in standard Goodman setups and can contribute to steady, consistent airflow. Best for Goodman installations requiring a straightforward, brand-aligned replacement. Choose this if you want a readily available, US-made-style blade that aligns with Goodman’s expected dimensions. Caution: confirm blade diameter and mounting pattern match your unit to avoid fit issues.
Goodman B1086750SP Condenser Fan Blade
The B1086750SP is a 22-inch, 3-blade condenser fan blade with a 27-degree pitch. It is manufactured in the United States and designed for Goodman equipment or compatible systems with the same blade geometry. Best for U.S.-made confidence and Goodman-focused replacements. Choose this when you want a blade that aligns with American manufacturing standards and a proven 22-inch fit. Caution: verify model compatibility with your specific Goodman unit before purchase.
70-100580-04 Ruud Replacement Condenser Fan Blade
The Ruud blade is a 3-blade, 24-inch condenser fan blade designed as a direct replacement for Ruud units. It provides a common-sense option for those with Ruud systems needing a standard, reliable upgrade. Best for Ruud equipment users seeking a straightforward replacement that maintains airflow. Choose this if your unit specifies a 24-inch blade with a 3-blade, CCW configuration. Caution: confirm exact dimensions and shaft compatibility with your model.
3313107.015 RV Air Conditioner Fan Blade (Dometic Brisk/Duo-Therm)
This RV condenser fan blade replaces 3313107.015 and supports Dometic Brisk Air and Duo-Therm RV heat pump and air conditioning models. It measures 10-1/2 inches in diameter and 3 inches thick, with a D-shaped 1/2-inch shaft hole for proper fit. Best for RV installations using Dometic Brisk or Duo-Therm brands. Choose this if you need compatibility for travel trailer or motorhome AC systems. Caution: RV blades require precise shaft compatibility; confirm the D-shaped hole and shaft size before ordering.
Buying Guide
What should you check before buying a heat pump fan blade?
- Blade diameter and shaft bore: Ensure the blade diameter matches your condenser housing and that the bore size fits your motor shaft.
- Blade pitch and blade count: Pitch affects airflow and noise; three blades are common, but pitch may vary (e.g., 27 degrees).
- Motor compatibility: Confirm DC voltage and connector style align with your heat pump’s motor specifications.
- Brand alignment vs. compatibility: Some units prefer original equipment manufacturer (OEM) blades, while others tolerate cross-brand replacements with matching geometry.
- Construction material: Aluminum blades offer durability and corrosion resistance for outdoor units.
- RV compatibility: For travel trailers or motorhomes, verify shaft shape (D-shaped) and dimensions.
How to choose between the options?
- Best for Lennox systems: 98M18 Condenser Fan Blade with Lennox compatibility and a solid aluminum build.
- Best for Goodman units: Goodman B1086748S and B1086750SP provide brand-aligned replacements with standard 22-inch sizes.
- Better for Ruud setups: Ruud 70-100580-04 fits Ruud models with a 24-inch blade for consistent airflow.
- Best for RV/Dometic systems: 3313107.015 blade offers direct RV compatibility for Brisk/Duo-Therm units.
Maintenance tip: After replacement, recheck mounting screws and confirm the blade spins freely without rubbing against the housing. Regular inspections help prevent vibration and noise.
Frequently Asked Questions
- Q: Do I need a specific blade for my heat pump model?
A: Yes. Check your unit’s model number and refer to the blade’s compatibility notes for diameter, bore, and shaft type. - Q: Can I use a non-OEM blade for replacement?
A: If the blade matches the same diameter, bore, and pitch, a cross-brand replacement is feasible, but OEM blades are often the safest fit. - Q: What risks come with an incorrect blade size?
A: An incorrect blade size can cause rubbing, overheating, or reduced airflow, potentially damaging the condenser motor. - Q: Are there blades specifically for RV air conditioners?
A: Yes. Some blades are designed to fit RV Dometic Brisk/Duo-Therm units with particular shaft shapes and dimensions. - Q: How do I verify blade orientation (CW/CCW) compatibility?
A: Check the hub side and rotation direction listed in the blade specs and ensure it matches your unit’s motor. - Q: Is aluminum the best material for outdoor blades?
A: Aluminum offers durability and corrosion resistance, which suits outdoor condenser environments.