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RV vent fan replacement parts are the blades, motors, cranks and screens that bring a tired roof vent back to life without replacing the whole vent. A vent that hums but moves no air, a crank that spins without lifting the cover, or a screen that sags and tears all point to a failed part, not a new roof vent. The steps below show how to find the failed part, measure it, and match a replacement.
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The quick answer
Find the failed part: a blade that wobbles or a motor that hums without spinning means the fan assembly, a crank that turns without lifting the cover means the operator, and a sagging screen means the frame and screen. Then measure the blade across, the shaft shape, and the vent opening, and match those figures to the listing. The parts below cover the common failures: a blade and motor kit, a blade alone, an operator arm, and a frame and screen.
Step 1: Find which part failed
Start with the symptom. If the fan runs but moves little air, look at the blade for cracks and try the shaft by hand. If the blade spins freely and the motor hums, the motor has likely failed; if the motor runs and the blade sits still, the blade or its fit on the shaft has failed. If the crank turns and the cover stays shut, the operator arm or its knob has worn out. If the screen sags or tears, the frame and screen need replacing.
Step 2: Measure the blade, the shaft and the vent
Measure before you order, since the listings state set sizes. Measure the blade across its widest point: the blades here are 6 inches across, with a blade length of 2 inches. Check the shaft shape: the RUSFOL motor (on Amazon) has a half-moon D-shaped shaft, 1/8 inch across and 3/5 inch long, made for a 0.094-inch round-shaped shaft. Measure the vent opening: the Lanties operator (on Amazon) fits standard 14-inch by 14-inch roof vents, and the Zejoot frame (on Amazon) and screen measure 13.5 inches by 13.5 inches, with a removable screen of 11.12 inches by 11.12 inches.
| Part | What it replaces | Size | Fits | Amazon |
|---|---|---|---|---|
| RUSFOL 6-Inch Blade and Motor | Fan blade and motor | 6-inch blade, 210 CFM | Heng’s, Elixir, Ventline (pre-1995), Jensen (pre-1995) | View on Amazon |
| Zejoot Vent Frame and Screen | Frame and screen | 13.5 x 13.5 inches | Ventadome V2092, V2094, V2110, V2119, V2310, V2392 | View on Amazon |
| Lanties Vent Operator Assembly | Operator arm, knob, screw | 14 x 14 inch vents | Ventadome V2119, V2092, V2094, V2128 | View on Amazon |
| LiuTaoWMX 6-Inch Fan Blade | Fan blade | 6-inch blade | Heng’s, Elixir, Jensen, Jayco, Toyota Dolphin | View on Amazon |
Step 3: Match the part to your vent
Match the part to the vent by brand and model, not by looks alone. The RUSFOL blade fits Heng’s, Elixir, Ventline from before 1995, and Jensen range hoods from before 1995, while its motor fits Heng’s, Elixir, Ventline, Jensen and similar 6-inch blades. The LiuTaoWMX blade (on Amazon) lists Heng’s, Elixir, Jensen, Jayco and Toyota Dolphin RVs, and says to confirm compatibility with your RV before ordering. The Lanties operator fits Ventline Ventadome V2119, V2092, V2094 and V2128, and its knob and screw are not needed for electric lift models. The Zejoot frame and screen fit Ventline Ventadome V2092, V2094, V2110, V2119, V2310 and V2392 manual lift vents, for standard non-power Ventadomes.
Step 4: Swap the part
Work with the vent cover down and the fan switched off. Lift the old blade off the shaft or unhook the old operator arm, then fit the new part the same way it came out. The RUSFOL listing says the motor has reverse polarity, so the spin direction changes when the wires are reversed, and the direction is read by looking down through the motor at the top of the blade. The Zejoot screen comes out by pinching the tabs around the edge, with no need to remove the ceiling garnish or the handle. If a part will not seat, stop and recheck the size against the listing rather than forcing it.
RV Vent Fan Replacement Parts to Buy
The parts below match the measurements in Step 2: a blade and motor for a dead fan, a blade alone when the motor still runs, an operator arm for a worn crank, and a frame and screen for a broken screen.
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 |  RUSFOL 6-Inch Blade and Motor | 9.5/10 | Buy on Amazon |
| 2 |  Zejoot Vent Frame and Screen | 9.5/10 | Buy on Amazon |
| 3 |  Lanties Vent Operator Assembly | 9.4/10 | Buy on Amazon |
| 4 |  LiuTaoWMX 6-Inch Fan Blade | 9.4/10 | Buy on Amazon |
RUSFOL 6-Inch Blade and Motor
A 6-inch fan blade paired with a 12V D-shaft motor rated at 210 CFM.
Pros
- Blade and 12V D-shaft motor come as a kit
- 210 CFM airflow stated for the fan
- Durable plastic blade resists rust and corrosion
- 1-year replacement warranty stated
Cons
- No weight figure is stated
- The stated 2/25-inch bore hole does not match the 0.094-inch shaft figure
- Warranty is a 1-year replacement term only
Detailed Review
The listing states a 6-inch fan blade with a 12V D-shaft motor rated at 210 CFM, a plastic blade that resists rust and corrosion, reverse polarity for clockwise or counterclockwise spin, and a 1-year replacement warranty. The title claims a universal fit, but the bullets limit the blade's Ventline and Jensen fit to pre-1995 models, and the stated 2/25-inch center bore hole sits against a 0.094-inch shaft, so measure your own fan before ordering. The motor shaft is a half-moon D shape, 1/8 inch across and 3/5 inch long.
Who it's for: RV owners whose blade and motor need replacing, with a pre-1995 Ventline or Jensen, or a Heng's or Elixir vent. Who should skip it: owners with a newer Ventline or Jensen vent, or with a working motor that only needs a blade.
Its Solar Score of 9.5/10 comes from performance 29/35, build 21/25, value 21/25, safety 0/10 and warranty 2/5: 73 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Airflow | 210 CFM |
|---|---|
| Blade | 6-inch diameter |
| Motor | 12V D-shaft, 1/8-inch shaft |
| Warranty | 1-year replacement |
Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. No weather rating or protection feature is stated, so safety scores zero. 1 year replacement warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.
Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Zejoot Vent Frame and Screen
A 13.5-inch by 13.5-inch roof vent frame and screen for Ventline Ventadome manual lift vents.
Pros
- Fits Ventline Ventadome models V2092, V2094, V2110, V2119, V2310 and V2392
- Frame and screen come together, with the screen removable for cleaning
- Screen keeps out debris and insects when the vent is open
- Antioxidant material resists yellowing and turning fragile
Cons
- For standard non-power Ventadomes only, so it does not fit powered vents
- No warranty term is stated
- No switch is included with the frame and screen
Detailed Review
The listing states a 13.5-inch by 13.5-inch roof vent frame and screen for Ventline Ventadome models V2092, V2094, V2110, V2119, V2310 and V2392, for standard non-power Ventadomes. The frame is made from an antioxidant material that resists yellowing, the screen measures 11.12 inches by 11.12 inches, and the screen keeps out debris and insects when the vent is open. The spec table gives 13.77 by 14.18 by 2.75 inches, against 13.5 by 13.5 inches in the bullets, so trust the bullets and measure your own vent.
Who it's for: RV owners with a Ventline Ventadome manual lift vent whose frame or screen is broken. Who should skip it: owners with a powered vent.
Its Solar Score of 9.5/10 comes from performance 28/35, build 21/25, value 20/25, safety 3/10 and warranty 0/5: 72 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Frame | 13.5 x 13.5 inches |
|---|---|
| Screen | 11.12 x 11.12 inches, removable |
| Fits | Ventadome V2092, V2094, V2110, V2119, V2310, V2392 |
| Color | Birch white |
Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Screen keeps out debris and insects when the vent is open, as the listing states, so safety scores 3 of 10. No warranty term, so warranty scores zero. See How We Pick.
Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Lanties Vent Operator Assembly
A roof vent operator assembly with a black knob and screw for 14-inch by 14-inch RV roof vents.
Pros
- Fits standard 14-inch by 14-inch RV roof vents with wedge-shaped covers
- Lists Ventline Ventadome models V2119, V2092, V2094 and V2128
- Kit includes the operator arm, a plastic knob and screws
- Made from metal and plastic for everyday use
Cons
- Knob and screw are not needed for electric lift models
- No warranty term is stated
- No weight figure is stated
- Operator only: no fan blade, motor or screen is included
Detailed Review
The listing states a roof vent operator assembly for standard 14-inch by 14-inch RV roof vents with wedge-shaped covers, compatible with Ventline Ventadome V2119, V2092, V2094 and V2128. The kit includes an operator arm, a plastic knob and screws, and the maker notes the knob and screw are not needed for electric lift models. It is made from metal and plastic, with a non-slip polygonal crank knob, and the spec table gives 8.07 by 2.36 by 1.38 inches.
Who it's for: RV owners with a manual Ventline Ventadome whose crank or operator arm is worn or broken. Who should skip it: owners with an electric lift model or a vent that is not 14 inches by 14 inches.
Its Solar Score of 9.4/10 comes from performance 28/35, build 20/25, value 20/25, safety 0/10 and warranty 0/5: 68 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Vent size | 14 x 14 inches |
|---|---|
| Fits | Ventadome V2119, V2092, V2094, V2128 |
| Kit | Operator arm, knob, screws |
| Size | 8.07 x 2.36 x 1.38 inches |
Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. No warranty term, so warranty scores zero. See How We Pick.
Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
LiuTaoWMX 6-Inch Fan Blade
A 6-inch replacement fan blade for 12V D-shaft motors in Heng's, Elixir, Jensen, Jayco and Toyota Dolphin RVs.
Pros
- Fits Heng's, Elixir, Jensen, Jayco and Toyota Dolphin RVs
- Plastic blade is durable and corrosion resistant
- Blade length of 2 inches and diameter of 6 inches are stated
- Swaps in by removing the old fan and fitting the new blade
Cons
- Blade only: no motor is included, so a dead motor needs a separate part
- No warranty term is stated
- No airflow figure is stated
- Compatibility is limited to select models
Detailed Review
The listing states a 6-inch replacement fan blade for 12V D-shaft motors, made of plastic that is durable and corrosion resistant, with a blade length of 2 inches and a diameter of 6 inches. It lists Heng's, Elixir, Jensen, Jayco and Toyota Dolphin RVs, and says to confirm compatibility before ordering. The package holds the 6-inch blade only, with no motor included, and the spec table gives 6.0 by 6.0 by 1.0 inches.
Who it's for: RV owners with a working 12V D-shaft motor whose blade needs replacing. Who should skip it: owners whose motor has failed.
Its Solar Score of 9.4/10 comes from performance 27/35, build 20/25, value 19/25, safety 0/10 and warranty 0/5: 66 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Blade | 6-inch diameter |
|---|---|
| Blade length | 2 inches |
| Motor type | 12V D-shaft |
| Size | 6.0 x 6.0 x 1.0 inches |
Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. No weather rating or protection feature is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
Ways to keep the vent working
- Clean the screen often: the Zejoot maker says frequent cleaning helps ventilation and prolongs its life.
- Check the blade and the motor fit when the fan sounds rough.
- Rinse the screen with clean water when it looks dirty, then let it dry.
FAQ: power away from the grid
What size fan blade does my RV vent take?
Measure the blade across its widest point. The blades here are 6 inches across, with a blade length of 2 inches, and the RUSFOL motor shaft is a D shape 1/8 inch across.
Will a 6-inch blade fit my Ventline vent?
The RUSFOL blade lists Ventline vents from before 1995, while the LiuTaoWMX blade lists Heng’s, Elixir, Jensen, Jayco and Toyota Dolphin RVs. Check the listing for your vent model before ordering.
How do I change the spin direction of a vent fan motor?
The RUSFOL listing says the motor has reverse polarity, so the spin direction changes when the wires are reversed. Read the direction by looking down through the motor at the top of the blade.
What does the vent operator assembly replace?
It replaces the crank that opens and closes the vent cover on a manual Ventline Ventadome. The Lanties kit holds an operator arm, a plastic knob and screws, and fits standard 14-inch by 14-inch roof vents with wedge-shaped covers.
Do I need a new frame or just a screen?
The Zejoot kit is a frame and screen together, with the screen removable for cleaning. If the frame is broken, the frame and screen kit fits Ventline Ventadome manual lift vents.
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