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Details about  Rotax 377,447,503 Carburetor Holder Intake Socket Boot Special TSR Compound JBM

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Rotax 377,447,503 Carburetor Holder Intake Socket Boot Special TSR Compound JBM
Item Ended
Item condition:
30 Jul, 2014 07:16:58 AEST
US $35.70
Approximately AU $40.64(including postage)
US $29.25 (approx. AU $33.30) USPS Priority Mail International Small Flat Rate Box | See details
Item location:
Kent, Ohio, United States


eBay item number:
Seller assumes all responsibility for this listing.
Last updated on  05 Jul, 2014 02:52:34 AEST  View all revisions

Item specifics

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition

Rotax 377,447,503 Carburetor Holder Intake Socket Boot

Locking rib prevents carbs being "thrown"...

Thicker wall design

Automotive "WORM" type clamps can be used.

FIXED PRICE SALE ( no waiting ) of  ONE ROTAX 447, 377, or 503 Carburetor Socket Boot made from a special TSR material that will last. (This material is patented.) Designed to prevent rapid age cracking and vibration in the carburetor. ( Enter number you need. )

Original Rotax parts cost $38 each. Why pay that for a part that will rapidly age crack? This part is made to replace Rotax part # 867-484

You don't tolerate failed rubber parts on your car, so why should you be replacing sockets on your aircraft every few years?

This socket boot fits BING model 54 carburetors with 36mm venturi or MIKUNI H4 carburetors with 37mm venturi used on Air Boats, Light Sport, and Ultralight Aircraft. This socket is designed to fit aircraft and is not a converted or stretched snowmobile socket.

  • There is no need to smear them with grease or not tighten your clamps, as they will last without these measures.


We are currently running your sockets on 2 different 582's and have been very happy with them. The temps run very high here in the summer and our Rotax sockets showed signs of cracking in only 30-40 hours. We have been running yours for almost 300 on both machines.
Ken Bricker
Jazirah Aviation Club
Ras Al Khaimah, UAE


I am happy to report that I have about 400 hours on your 
stuff and it is holding up beautifully! Often customers don't report 
back unless they are having problems and I thought that you might 
like to know about a happy customer,,, ME!

Joe Harrington
Lethbridge, Alberta, Canada


I just wanted to email you and let you know I just installed the two 503 carb boots I bought from you and all I got to say is  WOW
100% better than rotax...... Keep up the good work, I am eventually going to have ALL your products, that fit on my 503 ..
Gunna be ordering up some exhaust and intake gaskets in the near future...... Hope to see a 503 base gasket in your inventory soon ,as well... 
     Scott V.

Positive feedback ratingA++++! Great product,fast shipping! Thanks!Buyer: Aug-29-09 20:18
 Rotax 377,447,503 Carburetor Socket Boot Bing 54 Mik H4 (#330346003792)

JBM Sockets are made in USA and are not foreign made sockets full of fillers. They are designed for Ultralight aircraft and not a Snowmobile adaptation that never fits exactly right.

Socket has a locking rib on both ends, so carburetor cannot be thrown, and includes new clamp screws. ( These sockets also work well with ordinary automotive hose clamps. ) Carburetor mounts on the end with 4 dots. It is clearly marked "CARB"

How to tell a genuine JBM socket: JBM Sockets are stamped on the end of the socket nearest the engine with " JBM".

This is a sale for a single socket, as some folks have a single carb.

Order one socket for each carburetor you have.  ORDER NOW !

  • Please enter the number of sockets you need at checkout.

This socket is a replacement for ROTAX part # 867-484... This socket comes with new screws for your clamps.

Buy direct from manufacturer. Over 2000 sockets sold worldwide.

You cannot buy these sockets from "Rotax Only" parts suppliers.

Made in USA. JBM Industries guarantees your satisfaction.


Payment is expected within 5 days of sale.

Combined shipments must be paid within 5 days of sale.


  • JBM Industries ships promptly when we are paid.
  • Packing and Handling fees include: Insurance, Ebay and Pay Pal Fees, Boxes, Tape, Forms, Labels, Trips to the Post Office, etc. Ebay fees amplify handing costs for foreign shipments.
  • Ebay now charges fees on the shipping costs. This drives up the cost.
  • Canada 7-21 working days,
    Brazil / South America may take up to 3-5 weeks due to strict Custom Inspection
    Eastern Europe may take up to 3-5 weeks due to strict Custom Inspection.

  • Australia and New Zealand take extra long delivery times. Sorry, please just wait for it.

Please request an INVOICE before you pay to get combined shipping on items that qualify. Items that can be combined will have a small link that say's "shipping discounts" where it says shipping. Passing the mouse over this link will tell you if the item is eligible for combined shipping. No link = No discount.  Remember that some items must be sent separately. Requesting an invoice gives us a chance to box and weigh your items. Sometimes combining shipment can cost MORE than separate shipping due to weight, packaging  or size restrictions. Media mail cannot be combined with anything other than books. Heavy items cannot be combined with fragile items. Combined shipping saves you packing and handling charges, but weights are totaled, so shipping is not "FREE".

If you pay for each item without requesting an invoice, you will get separate shipping. ( Some folks may want this to spread risk of shipping loss, or to save weight.)

We do NOT negotiate shipping prices!

Like many sellers, we are really fed up with the cost, and problems of doing business here.  Ebay should examine their business model .


JBM Industries guarantees these parts will meet your satisfaction

Any JBM manufactured ( BUY IT NOW ) item that does not meet your satisfaction may be returned for FULL refund of item cost within 30 days of sale for any reason. You may return it even if you don't like the color. We stand behind the parts we manufacture!

Our prices represent our manufacturing costs, PLUS Ebay fees and expenses. We try to sell as cheaply as we can to everyone.

JBM does not refund shipping charges for any reason.

This page has 4 corners. Please stay within them. Buyers get upset when they try to add their own twists. 

Many items we sell requires some mechanical knowledge to install properly. If there is any doubt you have the required skills to install this item, please look elsewhere.

JBM Industries has been manufacturing machined and molded parts since 1978.

JBM doen NOT respond to feedback extortion so that you can set the terms of this deal.


Contact us via the eBay message service.


Questions and answers about this item

Q: Hello; I am looking for a single carborator intake Manifold for my rotax 503. Can you help ?
A: Sorry, no I don't have one of those. We just mold rubber parts.
06 Jul, 2014

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