Finding the correct replacement for a Lenco trim tab actuator can feel complicated when several models look nearly identical. Fortunately, Lenco uses a five-digit branding code that helps identify the actuator type and mounting-hole configuration.
By locating this code and checking two key digits, you can narrow down the correct replacement actuator for your trim tab system. This guide explains where to find the code, how to read it, and what specifications to confirm before ordering.
How to Identify Your Lenco Trim Tab Actuator
Lenco’s replacement process begins with the five-digit branding code imprinted on the actuator. Depending on the actuator’s age, the code may appear as five consecutive characters or with a space after the first character. The spacing does not change how the code is interpreted.
For replacement identification, focus on two positions within the code:
- Second digit: Identifies the actuator type.
- Fifth and final digit: Identifies the mounting-hole configuration.
These two digits work together to help match your existing actuator to the correct replacement part number. You can also browse our complete selection of Lenco trim tabs, actuators, and replacement parts.
Step 1: Locate the Five-Digit Branding Code
Inspect the face of the actuator near or below the Lenco label. The branding code is imprinted directly onto the actuator housing.
Carefully clean away dirt, marine growth, paint, or oxidation so the code can be read clearly. Avoid scraping or damaging the actuator housing while cleaning the area.
The code may appear in either of these formats:
- XXXXX
- X_XXXX

The additional space found on some older actuators is the only difference between the old and new five-digit branding-code formats.
Step 2: Identify the Actuator Type
The second digit from the left identifies the actuator type. Lenco’s replacement guide uses this character to distinguish between actuator families such as:
- 101 Standard
- 101XD
- 101XDS
- 102S
- 102XD
- 102HD
The actuator type is important because it helps determine the stroke length, voltage, and physical configuration of the replacement. The 100 Series replacement chart includes both 2.25-inch and 4.25-inch stroke actuators.
Other configurations are also available for specific applications, including the Lenco XDS 1.25-inch stroke replacement actuator. Always match the complete specifications of the existing actuator rather than choosing a replacement based only on its general appearance.
Step 3: Identify the Mounting-Hole Configuration
The fifth and final digit of the branding code identifies the actuator’s mounting-hole configuration.
Lenco replacement actuators may use different top and end mounting-hole sizes, including:
- 5/16-inch top and 5/16-inch end holes
- 3/8-inch top and 3/8-inch end holes
- 5/16-inch top and 3/8-inch end holes
Do not select a replacement based on appearance alone. Two actuators may have the same stroke length and voltage but use different mounting-hole sizes.
Step 4: Match the Code to the Replacement Chart
Once you know the actuator-type digit and mounting-hole digit, use the chart below to identify the corresponding replacement part number.
Lenco 100 Series Replacement Actuator Chart
| Code Type | Hole Code | Actuator | Replacement Part # | Stroke | Voltage | Wire Length | Top Hole | End Hole |
|---|---|---|---|---|---|---|---|---|
| A | 1 | 101 | 15054-001 | 2.25" | 12V | 6' | 5/16" | 5/16" |
| B | 1 | 101 | 15061-001 | 2.25" | 24V | 6' | 5/16" | 5/16" |
| C | 2 | 101XD | 15055-001 | 2.25" | 12V | 6' | 5/16" | 5/16" |
| C | 3 | 101XD | 15056-001 | 2.25" | 12V | 6' | 3/8" | 3/8" |
| C | 4 | 101XD | 15056-002 | 2.25" | 12V | 6' | 5/16" | 3/8" |
| D | 2 | 101XD | 15062-001 | 2.25" | 24V | 6' | 5/16" | 5/16" |
| D | 3 | 101XD | 15063-001 | 2.25" | 24V | 6' | 3/8" | 3/8" |
| D | 4 | 101XD | 15063-002 | 2.25" | 24V | 6' | 5/16" | 3/8" |
| E | 2 | 101XDS | 15057-001 | 2.25" | 12V | 6' | 5/16" | 5/16" |
| E | 3 | 101XDS | 15058-001 | 2.25" | 12V | 6' | 3/8" | 3/8" |
| F | 1 | 102S | 15059-001 | 4.25" | 12V | 6' | 5/16" | 5/16" |
| G | 1 | 102S | 15066-001 | 4.25" | 24V | 6' | 5/16" | 5/16" |
| H | 2 | 102XD | 15067-001 | 4.25" | 24V | 6' | 5/16" | 5/16" |
| P, I, J | 2 | 102HD | 15060-001 | 4.25" | 12V | 6' | 5/16" | 5/16" |
| K, R | 2 | 102HD | 15131-001 | 4.25" | 24V | 6' | 5/16" | 5/16" |
What to Confirm Before Ordering
The branding code is the best place to begin, but you should still verify the complete actuator specifications before purchasing a replacement.
Actuator Type
Confirm whether your existing actuator is a 101, 101XD, 101XDS, 102S, 102XD, or 102HD model. Similar-looking actuators are not always interchangeable.
System Voltage
Lenco’s replacement chart includes both 12V and 24V actuators. The replacement voltage must match the boat’s existing trim tab system.
Stroke Length
The listed 101-family actuators use a 2.25-inch stroke, while the listed 102-family actuators use a 4.25-inch stroke. Other specialized configurations, such as the Lenco XDS 1.25-inch stroke actuator, are also available. Confirm the complete model and stroke rather than selecting a replacement based only on the actuator family.
Mounting-Hole Sizes
Compare both the top and end mounting-hole sizes. Some actuator models are available with more than one hole configuration.
Wire Length
The standard replacement actuators shown in the 100 Series chart include a six-foot wire. Confirm that the supplied wire length is appropriate for the existing installation.
Can You Replace Only One Lenco Actuator?
In many cases, a single failed actuator can be replaced without replacing the entire trim tab system. The new actuator must match the existing system’s voltage, actuator type, stroke length, and mounting configuration.
Before replacing only one side, inspect the remaining actuator, trim tab blades, mounting brackets, wiring, and controls for corrosion, physical damage, or uneven operation. If both actuators are heavily worn or have been exposed to the same damage, replacing both may provide more consistent performance.
Frequently Asked Questions
How do I know which Lenco actuator I have?
Locate the five-digit branding code imprinted on the actuator near the Lenco label. The second digit identifies the actuator type, and the fifth digit identifies the mounting-hole configuration.
Where is the Lenco actuator identification code?
The identification code is located on the face of the actuator near or beneath the Lenco label. Cleaning the housing may be necessary before the code becomes visible.
Will a Lenco replacement actuator fit my boat?
A replacement may fit when it matches the existing actuator’s model, voltage, stroke length, wire length, and mounting-hole sizes. Match the branding code to the Lenco replacement chart before ordering.
Are Lenco trim tab actuators interchangeable?
Not all Lenco actuators are interchangeable. Differences in voltage, stroke length, actuator type, and mounting-hole size can prevent an actuator from fitting or operating correctly.
What is the difference between a Lenco 101 and 102 actuator?
In the replacement chart, the listed 101-family actuators use a 2.25-inch stroke, while the listed 102-family actuators use a 4.25-inch stroke. Each family also includes different actuator and mounting configurations.
Do I need a 12V or 24V Lenco actuator?
The replacement actuator must match the voltage of your existing trim tab system. Check the branding-code chart, the existing actuator specifications, and the boat’s electrical system before ordering.
Can I identify my actuator by its appearance?
Appearance alone is not a reliable identification method. Lenco actuators with different voltage or mounting configurations can look very similar. Use the branding code and confirm the listed specifications.
Find the Correct Lenco Replacement Actuator
Once you have located the branding code, use the second and fifth digits to identify the actuator type and mounting-hole configuration. Then confirm the voltage, stroke length, wire length, and mounting-hole sizes before purchasing.
Taking a few minutes to verify these details can help prevent ordering the wrong actuator and make installation much easier. Browse our selection of Lenco trim tab products, or explore additional trim tabs and replacement components for your boat.