41ac050-1 will this work?

The part # you are giving is the main board. The sprocket does have a separate part#. You're better off getting the kit in case other parts are broken that you didn't know about. Anyway, the kit doesn't cost much more than just the sprocket. This is used in multiple door openers, very common.

Does this work for model 139.54985

read on the website OR it fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models

Will this kit work with a linear ldo50 garrage door opener?

No it won't Liftmaster/Chamberlain are different manufacturer than the LDO50 which is made by Linear

I have this craftsman motor, and my gear assy is the same, but..mine is belt, not chain. can i just swap the sprocket out ?

I dont think you can the gear and sprocket is one assembly your top is for chain drive not belt it won't come apart from what I saw with my repair.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Replaces Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears Craftsman 1/3 and 1/2 HP Chain Drive Models

Product ID: 733850675

🔧Fits multiple 1/3 & 1/2 HP chain drive models

⚙️Precision-engineered gear & sprocket

🛠️Complete installation kit included

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

VT16725

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

Description

⚙️ Upgrade your garage game with precision and ease!

DURABLE BUILD - High-quality components designed to withstand daily wear and tear
ALL IN ONE KIT - Includes gear, sprocket, worm gear, grease, and bearings for hassle-free replacement
LIGHTWEIGHT COMPACT - Easy to handle and store with a sleek 431g package
SEAMLESS COMPATIBILITY - Works flawlessly with Chamberlain, Sears, Craftsman & LiftMaster models from 1984+
STEP BY STEP INSTALLATION - Comes with a detailed tutorial to get you back on track fast

This TCK TECH replacement kit features a precision gear and sprocket set compatible with 1/3 and 1/2 HP chain drive garage door openers from Chamberlain, Sears, Craftsman, and LiftMaster (1984 and newer). The kit includes all necessary parts—worm gear, grease, motor shaft and sprocket bearings—plus an installation tutorial, ensuring a smooth, durable, and professional-grade repair experience.

Specifications

ASIN	B07H4XYNPS
Amazon Bestseller	#351,044 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #1,376 in Lawn Mower Parts & Accessories
Brand Name	TCK TECH
Customer Reviews	4.7 4.7 out of 5 stars (7,742)
Included Components	Liftmaster 41c4220a用ギアスプロケットキット交換用 x 1。
Manufacturer	TCK TECH
Model	54101-212542AT
Part Number	54101-212542AT

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.