6Y-6638 Yoke Assembly is a transfer gears output yoke with guard designed for heavy-duty Caterpillar wheel loader drivetrains. Made from structural steel and alloy steel, it provides a durable connection for transferring rotational power and torque from the transfer gears to the transmission and other driven components. Its overload-resistant construction and protective guard make it suitable for demanding mining, quarry, earthmoving and large material-handling operations. Caterpillar lists the part for CAT 995, 994, 994F and other compatible 994-series wheel loaders.
Transfer Gears Output Yoke designed to transmit rotational power from the transfer gears to the transmission system.
Provides a secure mechanical connection for transferring torque and rotational force to driven components.
Manufactured from structural steel and alloy steel for strength, durability and resistance to demanding operating loads.
Designed to withstand overload and high torque conditions encountered in large wheel loaders.
The integrated guard helps protect the rotating yoke area and improves operational safety around the drivetrain.
Precision-manufactured for reliable fit and long-term performance in heavy-duty transmission applications.
Suitable for demanding mining, quarry and large-scale material handling operations using CAT 995, 994 and 994F wheel loaders.
Compatible Machine
The 6Y-6638 Yoke Assembly is listed by Caterpillar for:
CAT 995 Wheel Loader
CAT 994 Wheel Loader
CAT 994F Wheel Loader
Caterpillar also lists this part for additional 994-series wheel loaders, including 994D, 994H and 994K, as well as the TR53 transmission. Always verify the machine serial number and configuration before ordering.
Applications
The 6Y-6638 Yoke Assembly is suitable for:
Mining – Supporting drivetrain power transmission in large mining loaders.
Quarry – Designed for heavy material loading and continuous quarry operations.
Construction – Suitable for demanding construction material handling.
Heavy Earthmoving – Supports high-load drivetrain operation during intensive earthmoving work.
Large Infrastructure Projects – Reliable transmission component for large-scale material handling fleets.
Why Choose YLCM?
20+ Years Experience – Professional experience in construction and mining machinery parts.
Large Warehouse – Extensive inventory for heavy equipment maintenance requirements.
Fast Delivery – Efficient order processing and international logistics coordination.
Genuine & OEM Parts – Genuine, OEM and quality replacement options available.
Export to 60+ Countries – Serving customers across global construction and mining markets.
Professional Technical Support – Support with part identification and machine compatibility.
Packaging & Shipping
YLCM provides professional export packaging to protect the 6Y-6638 Yoke Assembly during international transportation. Depending on the order, packaging may include heavy-duty wooden crates, reinforced cartons, shock-proof protection, moisture-proof protection and reinforced internal fixation.
Available transportation options include Sea Freight, Railway Transportation, Land Transportation and Multimodal Logistics, according to the destination and shipment requirements.
FAQ
Q1: What is 6Y-6638? A: 6Y-6638 is a Transfer Gears Output Yoke with Guard used to transmit rotational power from the transfer gears to the transmission unit.
Q2: Which machines use 6Y-6638? A: Caterpillar lists 6Y-6638 for CAT 995, 994 and 994F, as well as several other 994-series wheel loaders.
Q3: What material is used for 6Y-6638? A: Caterpillar specifies structural steel and alloy steel for this part.
Q4: What does the yoke do in the drivetrain? A: The output yoke provides a connection point that transfers rotational torque from the transfer gears to the transmission and other driven components.
Q5: How can I confirm compatibility? A: Send YLCM your part number, machine model, serial number and quantity. Our technical team can help verify the application before quotation.
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Looking for 6Y-6638 Yoke Assembly for CAT 995, 994 or 994F?
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