Tilt Trim Sender Limit Kit – Fits MerCruiser Stern Drives MC-I, R, MR, Alpha One Gen 2, Bravo
This trim sender limit kit is designed to fit MerCruiser stern drives including MC-I, R, MR, Alpha One, Alpha One Gen 2, and Bravo I, II, III models. It serves as a direct replacement for factory-installed trim sender and limit components.
Direct replacements include MerCruiser part numbers 805320A03, 805320A1, 17693A2, 96863A15, 63115A12, 88678A4, 88678A5, Sierra 18-7633, and Red Rhino MR-971.
- Includes trim sender and limit kit assembly
- Compatible with various MerCruiser 4-stroke stern drives
- Installation via direct mount and wire lead connectors
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| MerCruiser |
805320A03 |
| MerCruiser |
805320A1 |
| MerCruiser |
17693A2 |
| MerCruiser |
96863A15 |
| MerCruiser |
63115A12 |
| MerCruiser |
88678A4 |
| MerCruiser |
88678A5 |
| Sierra |
18-7633 |
| Red Rhino |
MR-971 |
Compatible Engine Models
Confirm your engine model/year in the table below. For MerCruiser owners, here9;s a guide to help you identify your engine9;s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
| Brand |
Model |
Rated HP |
Stroke |
OEM Part No. |
| MerCruiser |
MC-I |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
R |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
MR |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
Alpha One |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
Alpha One Gen 2 |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
Bravo I |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
Bravo II |
N/A |
4-Stroke |
805320A03 |
| MerCruiser |
Bravo III |
N/A |
4-Stroke |
805320A03 |
Technical Specifications
| Specification |
Value |
| Product Type |
Tilt/Trim Sender Limit Kit |
| Installation |
Direct replacement |
| Connection |
Wire leads with electrical connectors |
| Fitting Type |
Direct mount to gimbal housing |
| Other Technical Attributes |
Trim limit switch on port side; trim position sender on starboard side |
Package Contents
- 1 x Trim Sender & Limit Kit (805320A03)
Installation Guide
- Locate the gimbal housing on the stern drive where the kit mounts.
- Disconnect the battery and any power sources to ensure safety during installation.
- Remove the existing trim sender and limit switch assembly, if applicable.
- Position the new sender limit kit in place and mount it directly to the gimbal housing.
- Connect the wire leads using the electrical connectors provided.
- Secure all connections and verify the kit is firmly mounted.
- Reconnect the battery or power source.
- Test the tilt and trim functions to ensure the kit is operating correctly.
- If any issues arise, recheck all connections and mounting tightness.
- Consult a professional technician if uncertain about any step or if problems persist.
Troubleshooting & FAQ
How do I confirm this fits my engine?
Check the compatible engine models table above and verify your stern drive model and OEM part number match. Confirm visually with your current trim sender limit kit.
What are the differences compared to OEM parts?
This product is an aftermarket replacement built to OEM specifications with comparable-grade materials. It is not an OEM component but meets performance and fit standards.
How often should I replace the trim sender limit kit?
Replacement intervals depend on usage and wear. Inspect regularly for signs of wear, corrosion, or failure and replace as needed.
What are common signs that this part is failing?
Symptoms include erratic trim readings, failure of trim limit function, or loss of tilt/trim control responsiveness.
OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
How fast do you ship and how much does it cost?
We offer fast global shipping15 days worldwide15 days worldwide days worldwide days worldwide15 days worldwide days worldwide days worldwide typically 5 days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide1 days worldwide days worldwide days worldwide days worldwide days worldwide days worldwideand standard shipping is free. Expedited options are available at checkout depending on your location.
What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist15 days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide exist days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5 days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide days worldwide worldwide in 5-15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.