Lower Unit Rebuilds in Cape Coral, FL
A lower unit rebuild replaces worn gears, bearings, and seals inside your existing case, restoring reliable drive without the cost of a new unit.
JD Marine Service rebuilds lower units for boaters in Cape Coral, FL, replacing worn gears, bearings, and seals instead of selling you a whole new unit. Rebuilding keeps money in your pocket and gets you back on the water sooner.
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What are the key facts about Lower Unit Rebuilds?
Price depends on
Internal damage extent, parts availability, access to the unit
Turnaround
Typically 1-2 weeks depending on parts
Areas served
Cape Coral, Fort Myers, Pine Island, and surrounding Lee County
Materials
OEM-spec gears, bearings, and seal kits
Contact
(239) 314-8365
What does Lower Unit Rebuilds include?
- Full teardown and inspection of gears, bearings, and shafts
- Gear replacement and precision re-shimming
- New seal kit installation and pressure testing
- Bearing and wear-item replacement throughout the unit
- Fresh lower unit gear oil fill with correct spec
- Water-test run to confirm smooth shifting and quiet operation
What affects the price of Lower Unit Rebuilds?
| Factor | Why it changes the work |
|---|---|
| Internal damage extent | A few worn seals cost far less to fix than shattered gears or a scored shaft. |
| Parts availability | Common engine brands move fast, while rare or discontinued units wait on sourcing. |
| Access to the unit | Boats on a lift or trailer come apart quicker than ones sitting in the water. |
| Corrosion severity | Heavy salt corrosion on the case or shafts adds cleaning and extra replacement parts. |
| Rebuild versus replace | If the case is cracked beyond repair, a replacement unit changes the scope entirely. |
Where is Lower Unit Rebuilds available?
We offer lower unit rebuilds to customers across the region. Tap any area for full local details.
What other services go with Lower Unit Rebuilds?
What do customers ask about Lower Unit Rebuilds?
Common questions and tips from our work with Cape Coral customers.
How should I care for my lower unit after a rebuild?
The best thing you can do is change the gear oil regularly. On Cape Coral boats that run saltwater, I suggest checking it every few outings and changing it at least once a season. Milky oil means water is getting in somewhere, usually a seal, and catching it early protects the fresh gears and bearings inside. Keep an eye on the sacrificial zinc anode too and swap it before it disappears.
How long does a lower unit rebuild usually take?
Most rebuilds take a few days to a week once parts are on hand, depending on how much wear is inside the case. I tear it down first, show you what is worn, and order what the unit actually needs. That way you are not paying for parts you do not use, and you know the timeline before any work starts.
Why rebuild a lower unit instead of replacing it?
Replacement units cost far more than the parts inside them, and a rebuilt unit with new bearings, gears, and seals performs just as well for everyday boating. If the case itself is sound, rebuilding keeps the original unit on your motor and puts the savings toward the rest of the boat. I will tell you honestly if a replacement is the better call.
Can I change lower unit gear oil myself?
Yes, most owners can drain and refill gear oil with a basic pump and the correct fluid for their motor. What a rebuild adds is the internal work you cannot see: bearing preload, gear backlash, and seal integrity, all set to spec. Do the oil changes yourself between services, and let a mechanic handle anything that opens the case.
Phone: (239) 314-8365