New Flywheel Ring Gear for Briggs & Stratton 399676 150-435 31-056 392134

US $27.99
Condition:
New
5 available
Breathe easy. Free shipping and returns.
Shipping:
Free USPS Ground Advantage®.
Located in: Goldsboro, North Carolina, United States
Delivery:
Estimated between Thu, Nov 13 and Tue, Nov 18 to 94104
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Returns:
30 days returns. Seller pays for return shipping.
Payments:
       Diners Club
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eBay item number:286491774369
Last updated on Sep 18, 2025 17:42:12 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Materials Sourced From
Taiwan
Brand
Stens
MPN
150-435
California Prop 65 Warning
California Proposition 65 Warning: Cancer and Reproductive Harm
UPC
00023899197828
Category

Item description from the seller

About this seller

Resale King Warehouse

99.4% positive feedback9.4K items sold

Joined Feb 2011
Supplier of car parts, tools, and hardware with the occasional inventory of Vintage Collectables and New Merchandise. 11 Years of eBay experience with feedback that highlights dedication to customer ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (2,822)

All ratingsselected
Positive
Neutral
Negative
  • 4***l (1112)- Feedback left by buyer.
    Past year
    Verified purchase
    Item arrived not as listed. Package was old and torn open. Listed as New, unopened. Seller states he opened to inspect. Was stock he bought from closed store. This did not sound right, and seller states I can always return. I chose to return. After return, eBay stepped in to assist in refund.
  • e***o (82)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item was excatly as described and the price was great. Packaging was done very well and came quickly. 10/10 would buy again from seller
  • r***a (389)- Feedback left by buyer.
    Past month
    Verified purchase
    Fast shipping. Packaged very well. Item as described. Great seller. A+++

Product ratings and reviews

4.9
110 product ratings
  • 102 users rated this 5 out of 5 stars
  • 5 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 1 users rated this 1 out of 5 stars

Compact

Good value

Easy to start

Most relevant reviews

  • Top favorable review

    Stens Ring Gear

    Great product!! Was able to install this a few days ago and was able to cut my grass with ease yesterday!! No trouble starting or anything!! If you have the plastic ring gear issue, this is a great replacement!! Also, for install instructions, check out a guy on YouTube. His page is Taryl Fixes All. He has a video on how to replace this and thanks to his vid I had no problem!!

    Verified purchase: YesCondition: NewSold by: powerpartspros1

  • Top critical review

    Flywheel gear is ok but starter gear useless

    So after installation of the ring gear and starter gear I started to notice that the starter gear was dragging and making weird noises. After removal of the Stens starter gear this is the conclusion I have come to. If you notice in the pics below on the right hand side is a OEM Briggs gear, notice the little cut out it has where the spring sits to keep the spring in place and also keep the spring from wearing the top of the gear. Pictured on the left is the Stens starter gear notice how it is flat on top with no cut out for the spring to sit. I have installed 3 new springs on this gear and it kept chewing them up, you can even see the excessive wear on top of the gear. My recommendation is, this is not a bad kit for the price but save your self some time and order the OEM Briggs starter ...

    Verified purchase: YesCondition: NewSold by: greatbrands

  • excellent ring gear kit

    Kit is complete and relatively easy to install for someone used to working on small engines. Removing the flywheel requires the use of a puller and is the only item a "backyard" mechanic might not have, but can be borrowed or rented at an auto supply store. The ring gear in the kit is aluminum vice the stock plastic, and should be the last one needed to be installed on the motor. Installing the starter gear can be a bit troublesome due to the difficulty of removing and reinstalling the retaining ring that holds the starter gear on the starter. If the correct starter gear is already installed and in good condition, replacing it may not be necessary. All parts fit correctly, good instructions included, starter works smoothly again.

    Verified purchase: YesCondition: NewSold by: greatbrands

  • Aluminum ring gear perfectly replaces plastic gear

    Ring gear perfectly replaces the old plastic gear, holes lined up, new screws with locking nuts replaced the original rivets. New gear is aluminum and needs to used with the provided gear for the starter motor. Removed the original steel rivets by grinding off top the rivets on the upper side of the flywheel and using a 3/16 punch, drove the rivets out. Took about 10 minutes. Kit also included two roll pins and a small "C" clip for the starter. Do not lose the clip, it is small and easy to misplace. Happy times, ready to mow once more.

    Verified purchase: YesCondition: New

  • Quick but not too easy.

    Received order for B&S ring gear in very rapid order, California to Upper Michigan in a day and a half. Older fiber ring gear lasted well over 20 years through countless starts on a modified mower relegated to tractor duty. This gear, being metal should last well after I'm gone. Note: It comes with all fittings to change Bendix drive gear as well. Removing fly-wheel on a 20+ year old mower is never easy. A small drill press is a distinct advantage when drilling out rivets. A very good re-build kit.

    Verified purchase: YesCondition: NewSold by: mowthelawnus