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Product title:

Harman Single-sided Fan Blade Impeller (4 3/4"): 3-21-00661-OEM

Product rating:
Product price:
$24.99
Product SKU ! 3-21-00661
Product MPN ! 3-21-00661
Product availability: In Stock
Bullet point features

Frequently Bought Together

Total Price: $234.97

Description

This 4 3/4" combustion blower fan blade is the single-sided impeller that is used on the Harman Accentra Insert, P35i and P35i-C Insert, and the PF120 Pellet Furnace.

If any of the petals (fins) are bent, your stove may vibrate. To fix this, you can sometimes bend them back to help balance the motor. It is suggested to replace the impeller if the metal is corroded, if there is metal missing or if the impeller is unbalanced through wear and tear.

If you are replacing your combustion blower motor for any reason, it is suggested to also replace the impeller. Harman has engineered 3 different sizes for their various stoves which is why they are not already attached to the motors.


Harman makes three different sized impellers for use in various stoves and inserts. Please make sure you are ordering the correct impeller for your specific stove or insert. There is also a 5" single sided impeller, part # 3-20-40985 and a 5" double sided impeller, part # 3-20-502221


Replacement For Part Number:

  • 3-21-00661

View Compatible Models

UPC: 652174715008

Compatible Models

    Harman

  • Accentra Insert
  • P35i
  • P35i-C
  • PF120

Technical Specs

Petals (fins) 12
Type Single Sided
Overall OD 4 3/4"
Shaft ID 5/16"
Set Screw 5/32 Allan Key

Instructions

Install Instructions For Harman Single-sided Fan Blade Impeller (4 3/4"): 3-21-00661-OEM

In a perfect scenario, everything comes apart easily, however; the impeller can become seized on the motor shaft if it has never been removed, in which case the shaft of the motor must be cut. This will require a new impeller to be mounted on the new motor so you will want to have one of those on hand. See the description for this b lower to figure out which impeller you need, there are three (3) types to choose from, depending on your stove model. If you need to cut the shaft, a hand-held hacksaw blade is the best tool. It needs to be long and narrow because it need to fit between the motors cooling fan and the stove wall from behind the stove. You will also need to jam a screwdriver or something between the impeller and stove wall in the fire box to keep the shaft from spinning as you cut through the shaft. This same process may need to be done for stoves that use a removable hub but it will be easier because the whole assembly can be removed from the stove when cutting.


Troubleshooting

Warranty

Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Information

This Item Qualifies For Free Shipping With Orders Over $49!

HOLIDAY UPDATE
Due to the upcoming Christmas and New Years holidays, shippers will not be picking up on the dates below. Additionally, packages may take longer to arrive than expected. We appreciate your understanding and patience during this time.

  • USPS: No pickup on Dec 24th, Dec 25th, and Jan 1st.
  • UPS: No pickup on Dec 24th (except NDA and 2nd Day), Dec 25th, Dec 31st (except NDA and 2nd Day), and Jan 1st.
CANADA UPDATE

Due to the ongoing Canada Post postal workers' strike, we are forced to suspend all ordering to Canada. Please be advised that any shipments that did not clear U.S. customs by November 15th will be delayed until Canada Post is fully operational. We appreciate your understanding and patience during this time.

When Will My Order Ship?

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 12PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

Do You Offer Express Shipping?

Yes! Please note the shipping times are based on business days, weekends and holidays do not count to the delivery date. Please see our expedited ship time schedules here.

How Does Free Shipping Work?

Most orders over $49 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawaii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

Shipping Time Estimations

For information on shipping time estimations, see the Shipping Information & Transit Times on the shipping page.

Learn More About Our Shipping Information
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Description

This 4 3/4" combustion blower fan blade is the single-sided impeller that is used on the Harman Accentra Insert, P35i and P35i-C Insert, and the PF120 Pellet Furnace.

If any of the petals (fins) are bent, your stove may vibrate. To fix this, you can sometimes bend them back to help balance the motor. It is suggested to replace the impeller if the metal is corroded, if there is metal missing or if the impeller is unbalanced through wear and tear.

If you are replacing your combustion blower motor for any reason, it is suggested to also replace the impeller. Harman has engineered 3 different sizes for their various stoves which is why they are not already attached to the motors.


Harman makes three different sized impellers for use in various stoves and inserts. Please make sure you are ordering the correct impeller for your specific stove or insert. There is also a 5" single sided impeller, part # 3-20-40985 and a 5" double sided impeller, part # 3-20-502221


Replacement For Part Number:

  • 3-21-00661

View Compatible Models

UPC: 652174715008

Technical Specs

Petals (fins) 12
Type Single Sided
Overall OD 4 3/4"
Shaft ID 5/16"
Set Screw 5/32 Allan Key

Instructions

Install Instructions For Harman Single-sided Fan Blade Impeller (4 3/4"): 3-21-00661-OEM

In a perfect scenario, everything comes apart easily, however; the impeller can become seized on the motor shaft if it has never been removed, in which case the shaft of the motor must be cut. This will require a new impeller to be mounted on the new motor so you will want to have one of those on hand. See the description for this b lower to figure out which impeller you need, there are three (3) types to choose from, depending on your stove model. If you need to cut the shaft, a hand-held hacksaw blade is the best tool. It needs to be long and narrow because it need to fit between the motors cooling fan and the stove wall from behind the stove. You will also need to jam a screwdriver or something between the impeller and stove wall in the fire box to keep the shaft from spinning as you cut through the shaft. This same process may need to be done for stoves that use a removable hub but it will be easier because the whole assembly can be removed from the stove when cutting.


Warranty

Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Info

This Item Qualifies For Free Shipping With Orders Over $49!

HOLIDAY UPDATE
Due to the upcoming Christmas and New Years holidays, shippers will not be picking up on the dates below. Additionally, packages may take longer to arrive than expected. We appreciate your understanding and patience during this time.

  • USPS: No pickup on Dec 24th, Dec 25th, and Jan 1st.
  • UPS: No pickup on Dec 24th (except NDA and 2nd Day), Dec 25th, Dec 31st (except NDA and 2nd Day), and Jan 1st.
CANADA UPDATE

Due to the ongoing Canada Post postal workers' strike, we are forced to suspend all ordering to Canada. Please be advised that any shipments that did not clear U.S. customs by November 15th will be delayed until Canada Post is fully operational. We appreciate your understanding and patience during this time.

When Will My Order Ship?

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 12PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

Do You Offer Express Shipping?

Yes! Please note the shipping times are based on business days, weekends and holidays do not count to the delivery date. Please see our expedited ship time schedules here.

How Does Free Shipping Work?

Most orders over $49 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawaii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

Shipping Time Estimations

For information on shipping time estimations, see the Shipping Information & Transit Times on the shipping page.

Learn More About Our Shipping Information

Customer Reviews

Based on 19 reviews
95%
(18)
5%
(1)
0%
(0)
0%
(0)
0%
(0)
J
Jim M.
Perfect fit

This was a perfect fit, it took longer to get the stove out tan to install the new fan.
Order the motor and fan unit as the old fan is impossible to get off the shaft. Much cheaper price than OEM

A
Andrew C.
Fan Blade Impeller

Fit as it should. No issues

A
Austin C.

Fit my Accentra insert perfectly with the Harman Combustion Blower Exhaust Fan Motor: 3-21-08639-AMP. Comes with a set screw which is good considering I had to cut the old fan blade impeller out (tried liquid wrench and heat but was frozen solid). I put some anti-seize on the set screw on this new install to help prevent this issue next time.

D
Diane L.
Insert Pellet Stove Parts

The parts I ordered came fast and was easy to put in. Works so quiet, keep checking to see if it is on. Thank you!!!

G
Gabriel F.
Right parts - fast shipping

Ordered on a Friday Evening and got it on a Monday evening - maybe it was luck, but that was impressive! Especially when you need a combustion motor and fan blades to fix the stove that provides the only heat source for the entire basement of your home!

123

QUESTIONS & ANSWERS

If your question does not concern this specific product, use our contact form
Ask a Question

  • MY HARMAN MANUAL LISTS PART NO. 3-21-00661 FAN BLADE ON MY ADVANCE STOVE. YOUR LIST OF STOVES IS NOT ON THIS LIST. WILL THIS PART FIT MY STOVE?

    Yes, the Harman Advance uses a 4 3/4" single impeller blade

Customer Reviews

Based on 19 reviews
95%
(18)
5%
(1)
0%
(0)
0%
(0)
0%
(0)
J
Jim M.
Perfect fit

This was a perfect fit, it took longer to get the stove out tan to install the new fan.
Order the motor and fan unit as the old fan is impossible to get off the shaft. Much cheaper price than OEM

A
Andrew C.
Fan Blade Impeller

Fit as it should. No issues

A
Austin C.

Fit my Accentra insert perfectly with the Harman Combustion Blower Exhaust Fan Motor: 3-21-08639-AMP. Comes with a set screw which is good considering I had to cut the old fan blade impeller out (tried liquid wrench and heat but was frozen solid). I put some anti-seize on the set screw on this new install to help prevent this issue next time.

D
Diane L.
Insert Pellet Stove Parts

The parts I ordered came fast and was easy to put in. Works so quiet, keep checking to see if it is on. Thank you!!!

G
Gabriel F.
Right parts - fast shipping

Ordered on a Friday Evening and got it on a Monday evening - maybe it was luck, but that was impressive! Especially when you need a combustion motor and fan blades to fix the stove that provides the only heat source for the entire basement of your home!

123
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