Identify Your Equipment
Record the machine manufacturer, exact model, year and serial number. Check the equipment identification plate, usually located on the machine frame or body.
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Travel Motor Final Drive Motor Assembly Aftermarket Replacement For Bobcat 331D Mini Excavator is backordered and will ship as soon as it is back in stock.
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One Year Warranty
Easy 60-day returns
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Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
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For more warranty details, please check out our warranty policy.
Estimated delivery time 8-15 workdays
Ordering the correct final drive for your heavy equipment is critical to ensuring your machine operates properly. Following the right steps and gathering the necessary information will help you avoid costly mistakes and delays.

The most important piece of information you'll need is your machine serial number. This should be your starting point before contacting any supplier. Additionally, knowing your machine's make and model will help ensure accuracy.
If you don't have access to the machine serial number, or to ensure maximum accuracy, you'll need to get the information directly from your existing final drive. This is the most reliable way to match a replacement drive to your machine.

Additional physical characteristics of your final drive will help ensure you receive the correct replacement:
Also count the number of ports on your drive and the number of mounting bolts required for installation.

Many machine owners assume they have an OEM drive when, in fact, an aftermarket drive may have been installed during the machine's lifetime. When this happens, the machine serial number alone may not be sufficient to order the correct replacement.
Aftermarket drives can have different specifications, including hub sizes that require different diameter sprockets. Getting the tag information ensures you receive a drive that will fit properly with your existing sprocket and mounting configuration.
When you're ready to order, provide as much of the following information as possible:
The more information you can provide, the better we can ensure you receive the right final drive for your machine. Taking a few extra minutes to gather accurate information will save you time, money, and frustration down the road.
Contact us with your final drive requirements, and our technical team will help you find the perfect match for your heavy equipment.
Choosing the correct final drive requires more than matching an equipment model. Check your machine make, model, serial number, existing OEM part number, mounting configuration and hydraulic specifications before ordering. Use this guide to identify the information needed to find a suitable replacement final drive.
Follow these three steps before purchasing a replacement final drive.
Record the machine manufacturer, exact model, year and serial number. Check the equipment identification plate, usually located on the machine frame or body.
Check the existing final drive for an OEM part number, manufacturer reference or identification label. Photographs of the motor housing and identification plate can also help with identification.
Compare mounting dimensions, output shaft specifications, hydraulic connections and gear ratio. Check the equipment manual and product fitment information before placing your order.
Use this checklist to compare your existing final drive with a replacement unit.
Equipment make, model, manufacturing year and serial number.
Original final drive part number, manufacturer reference or cross-reference number.
Bolt pattern, mounting flange, bolt spacing and mounting dimensions.
Shaft diameter, length, spline count and output configuration.
Hydraulic port size, location and thread type, such as SAE, NPT or BSPP.
Gear ratio, displacement, maximum pressure and output torque, where applicable.
Send our team your equipment nameplate, existing final drive photos and available part numbers. We can help review the information and identify the specifications that need to be confirmed.
Correct identification and specification checks help reduce the risk of ordering an incompatible replacement.
Share your machine make, model, serial number and existing part number for fitment assistance.
Compare mounting patterns, shaft dimensions, hydraulic connections and other available technical details.
Review product specifications, application details and included components before ordering.
Contact our team to confirm current availability, shipping arrangements and applicable warranty information.
Review the available technical information for this product. Specifications vary by model and application.
Detailed technical specifications are not currently listed for this product.
Contact our technical team for assistance →Start with your excavator make, model and serial number. Check the OEM part number on your existing final drive, then compare mounting dimensions, output shaft configuration and hydraulic connections with the replacement product.
Not always. Different serial number ranges or equipment configurations may use different final drives. Provide the machine serial number and existing part number whenever possible.
You can still request identification assistance. Send photographs of the machine identification plate and existing final drive, including its housing, mounting flange and visible markings.
Compare the mounting bolt pattern, output shaft dimensions, spline count, hydraulic port configuration and gear ratio. Also check pressure, displacement and torque specifications when they are provided for your application.
Yes. Contact our team with your equipment make, model, serial number, existing part number and photographs. We can help review the available fitment and technical information.
Send us your equipment details, OEM part number or photos of your existing final drive. Our team can help review the application before you order.
Contact Technical SupportWe accept returns within 60 days of delivery for unused parts in original packaging. To initiate a return, please submit your request through our return portal. Return shipping costs for non-defective items are the buyer's responsibility.
You may request a cancellation before your order has been dispatched. Once an order has been fulfilled and shipped, it cannot be cancelled — standard return terms will apply instead. Please contact us as soon as possible if you need to cancel.
We accept all major credit and debit cards including Visa, Mastercard, and American Express. We also support PayPal, Apple Pay, and Google Pay at checkout. For B2B and trade customers, bank transfer and net payment terms may be available upon account approval — please contact us to discuss your requirements.
Estimated delivery timeframes are displayed on most product pages and all tool listings. For parts without a displayed timeframe, standard delivery to US addresses is typically 5–10 business days from dispatch, depending on your location and the origin warehouse. Express shipping options may be available at checkout.
No. US customers are not charged any import fees or customs duties on their orders. The price you see is what you pay — there are no hidden charges added upon delivery.
You can get an estimated shipping cost directly on the cart page — just add your parts to the cart and enter your delivery zip code to see available shipping options and rates. For large or heavy orders requiring a freight quote, please contact us directly with your parts list and delivery zip code.
Yes. US trade customers can apply for a B2B account to access volume pricing, bulk quotation, team invite and dedicated account support. Contact us directly to get started.
Our parts team is here to help with your order or product questions.
Contact Our Parts Team