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Gearcase Core Policy and Warranty

Core Exchange Policy / Limited Warranty / Return Policy on Gearcases


The purpose of a core deposit is to give you money back on your old unit should you decide to participate. Initially, the core deposit amount is included on all order totals whether you participate or not. Once you return all of the appropriate core parts, we evaluate those parts then refund the core deposit to you within 30 days of receipt of your old core. Please review the full procedures below.  

CORE EXCHANGE PROCEDURE: If we do not receive your return core within 90 days, your core deposit will be retained.
Miss the 90 day deadline? In some cases we may take your core beyond the 90 day period.

Complete the Core Exchange form below and return it with a copy of your receipt & the core using the original packing box to:

930 Osage
Kansas City, KS  66105

The 3 main parts which must be included in the box are:

  • The Housing
  • Prop Shaft
  • Drive Shaft

CORE DEPOSIT REFUND AMOUNT: The components of the lower unit are the housing, vertical drive shaft & the horizontal prop-shaft

Core deposits are determined as follows:

  • 70% of the core value is returned for a defective free housing
  • 15% of the core value is returned for a good drive-shaft
  • 15% of the core value is returned for a good prop-shaft

Thus, if all 3 parts are reusable, 100% of the core deposit is returned

All of the parts must be present regardless of the condition to be eligible for the deposit return.  We retain sole discretion to determine if a core is re-buildable.

Gearcase Core Return Form
Print this page and send with your core return. To print, download this section as .pdf then print


Your USBoatworks remanufactured unit is assembled to provide like-new performance and longevity under normal operation and care. If you should have a problem, your unit may be covered under our limited warranty.  After reading and meeting the boat engine lower unit warranty conditions below, please contact us to begin the warranty procedure.

Warranty: One year from date of original purchase – parts & labor only. This warranty extends only to the original purchaser and begins upon receipt of the product and is non transferable. Dis-assembly of any product manufactured by USBoatworks without prior approval will void your warranty.

Every USBoatworks remanufactured product is coded by us to protect the user and the re-manufacturer. The buyer acknowledges for this warranty to be in effect and to receive proper life and performance from the remanufactured unit, additional components must be inspected, repaired or replaced when the unit is installed.

The warranty does not cover damage/failure as a result of:

  1. Extensive corrosion damage to stern drive.
  2. Collision and rough shifting.
  3. Dry start, abuse, abnormal operation or modifications.
  4. Damaged or inefficient accessory parts including partial stern drive units.
  5. Dirty or improper maintenance.
  6. Overheating, detonation or pre-ignition.
  7. Freezing or improper installation.

The remanufactured unit must be properly installed following proper procedure to prevent accident or injury.

In the event that a warranty claim is required outside the continental United States, with the exception of Alaska and Hawaii, there may be additional charges not covered under this warranty. These additional charges are the responsibility of the purchaser.

Due to design limitations, all units installed on applications exceeding horsepower limits set forth by the original equipment manufacturer will not be warranted.

The warranty does not include consequential or incidental damage, loss of use, profits, income, fees, dock storage fees, telephone calls, freight, lodging, alternative transportation, etc, repair by anyone other than US Boatworks. This limited warranty of seller shall terminate after one year from date of invoice. Buyer is responsible for all defects thereafter, irrespective of causes. Any repair or replacement by seller will not extend above warranty. The buyer must notify seller of any warranty claim prior to repair, for authorization of claim by US Boatworks.

The limited warranty of seller set forth above to repair or replace defects on workmanship or material attributable to seller within the above time limit is in lieu of any and all other warranties, express or implied. Seller makes no warranty of merchantability or fitness for a particular purpose.

It is an express condition precedent to the limited warranty of seller set forth above that buyer must notify seller in writing of any warranty claim. Warranty work shall be performed by seller at its facility in Kansas City, Kansas and seller shall not be liable for any warranty work or other repair or replacement of defects in workmanship or material performed by any other party. It shall be the sole responsibility of buyer to pay for and ship all components claimed to be defective to seller’s facility in Kansas City, Kansas. No benefits or remedies are available under this limited warranty while the invoice for the unit or related services remains outstanding.

Gearcase Returns

Gearcases are special order and are non-returnable.  Please see our Gearcase Warranty section for details regarding our 1 year limited warranty.

Lower Unit Education

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