If your RV air conditioner’s fan blade snapped off, you need reliable replacements that fit your model and restore safe, quiet cooling. This guide highlights top options for common RV A/C brands and configurations, helping buyers choose blades that fit, last, and perform well on the road. The listed products suit different RV systems and installations, from Dometic Brisk Air to Coleman Mach units. The following table summarizes who each top product is best for.
| Product | Best For |
|---|---|
| 3313107.015 Rv Air Conditioner Parts Fan Blade (CCTP) | Best for Dometic Brisk/Duo-Therm setups |
| 6733-3221 Camper/RV Conditioner Fan Blade (luclyyasys) | Best for Coleman Mach units with wide compatibility |
| 3313107.015 RV AC Fan Blade for Dometic Brisk Air (CLLOMAGY) | Best for Brisk Air and similar models |
| 70-100580-04 Ruud Replacement Condenser Fan Blade | Best generic 3-blade replacement |
| 6733-3221 Replacement Coleman Mach Fan Blade (DCNWLBB) | Best for Coleman Mach fans with 11-inch blades |
3313107.015 Rv Air Conditioner Parts Fan Blade Compatible with Dometic Brisk and Duo-Therm RV Heat Pump/Air Conditioning Models Condenser Fan Blade

The CCTP 3313107.015 replacement is designed to fit Dometic Brisk Air and Duo-Therm RV units. It replaces several part numbers and is described as turning without sound when installed. Best for: RV owners with Dometic Brisk Air or Duo-Therm systems who need a direct-fit replacement that minimizes noise and fit issues. Caution: Verify shaft diameter and thickness match your motor to ensure alignment and balance.
6733-3221 Camper/RV Conditioner Fan Blade for Coleman Mach RV AC Fan

This blade is marketed for Coleman Mach units and promotes high-temperature, anti-corrosion materials with a long service life. Best for: Coleman Mach RV conditioners requiring 11-inch diameter blades with a 1/2-inch shaft hole and a 40-degree blade pitch. Benefits include improved heat dissipation and potentially quieter operation. Limitation: Compatibility claims cover a broad Coleman family; confirm exact model numbers before purchase.
3313107.015 RV AC Fan Blade for Dometic Brisk Air Conditioner 3107914.008

CLLOMAGY’s 3313107.015 replacement targets Dometic Brisk Air and related series, including 3107914.008 and 317937.000. Best for: RV owners with Dometic Brisk Air or Duo-Therm systems who need an exact-fit blade that covers multiple cross-reference numbers. Caution: Some listings emphasize broad compatibility—confirm model number and shaft specs to avoid misfit.
70-100580-04 – Ruud Replacement Condenser Fan Blade -3 x 24″ CCW

Ruud’s replacement is a standard 3-blade condenser fan blade. Best for: RV or home HVAC setups that use a CCW 3-blade configuration with a 24-inch diameter. Caution: Ensure overall blade diameter and mounting pattern match your condenser housing before ordering.
6733-3221RV Air Conditioner Fan Blade Replacement Coleman Mach AC Fan Motor

This item lists 6733-3221 and 6733322 as compatible Coleman Mach replacement blades with 11-inch diameter and a 1/2-inch shaft hole, 6 blades at a 40-degree incline. Best for: Coleman Mach RV units requiring a robust blade to improve airflow and reduce motor load. Limitation: Availability may vary; verify exact Coleman Mach model compatibility before purchase.
6733-3221 Replacement RV Air Conditioner Fan Blade, Coleman 6733-3221

Durable replacement blade designed for Coleman Mach 6733-3221 units, including 6733-3221 and 6733322 variants. Best for: Coleman Mach fans that require a 12-inch diameter blade with a 6-blade, 40-degree design. Caution: Cross-reference part numbers to ensure exact match for your motor and housing.
Supplying Demand 70-21858-12 HVAC Fan Blade

Supplying Demand 70-21858-12 offers an 18-inch, 2-blade, CCW fan blade for outdoor AC units. Best for: Outdoor condensers and compatible models that require a larger, simple two-blade design. Caution: Check blade count and pitch to ensure correct airflow and motor clearance.
Buying Guide
Key purchase considerations address fit, material, and compatibility. The following questions help narrow choices:
- What is the blade diameter and shaft hole size of my condenser fan? Match these measurements precisely to avoid misfit and wobble.
- Is my unit brand-specific (Dometic, Coleman Mach, Ruud) or a generic replacement will work? Brand-specific blades ensure optimal balance and airflow.
- What is the blade pitch and number of blades? Higher pitch and more blades can improve airflow but may stress the motor if mismatched.
- What material is used? High-temperature or anti-corrosion plastics and aluminum offer different durability under outdoor conditions.
- Will the replacement require re-balancing or professional installation? Some blades come pre-balanced; others require a technician for proper mounting.
Practical buying considerations
- Fit verification: Confirm model numbers referenced in the listing match your A/C unit’s K-number or cross-reference equivalents.
- Clearance check: Ensure the new blade will not contact housing, fan shroud, or wiring during rotation.
- Noise expectations: Some blades are designed for quieter operation; look for balance and tight tolerances to reduce vibration.
FAQ
- Q: Will any 12-inch blade fit my Coleman Mach unit? A: No. Blade diameter, shaft size, and mounting hole must match your specific Coleman Mach model.
- Q: How do I know if a blade is balanced? A: Many replacements come pre-balanced; if not, professional balancing may be required after installation.
- Q: Can I replace only the blade or do I need a whole motor? A: Replacement blades are often available; however, inspect the motor for wear or shaft damage before replacing the blade alone.
- Q: Are aluminum blades better than plastic? A: Aluminum blades generally offer greater durability in outdoor settings, while plastics can be lighter and quieter but may wear faster in high-heat conditions.
- Q: Do I need to replace other components when replacing a blade? A: If the blade shows signs of imbalance or motor loading, consider inspecting bearings, shaft, and the electrical connections for wear.
- Q: Is professional installation recommended? A: For safe operation and proper balance, professional installation is advised if you are unsure about mounting and alignment.