Mercruiser Trim Limit & Sender Kit – 805320A03 – Fits Alpha MC-1, R, MR & Bravo Sterndrives
Condition: New Other — unused, no wear, may come without original retail packaging.

This high-quality replacement Trim Limit & Sender Kit replaces Mercruiser part number 805320A03 and Sierra 18-7633. Designed to restore proper trim gauge operation and trim limit function on a wide range of Mercruiser sterndrives. Perfect for marine repair shops, boat owners, and anyone performing transom or outdrive maintenance.

Compatible With

Fits the following Mercruiser sterndrives:

• Alpha

• Alpha One

• MC-1

• R

• MR

• Bravo Series

(Direct OEM-style fitment — plug-and-play installation for most Mercruiser setups.)

Features

• Replaces Mercruiser part # 805320A03

• Replaces Sierra part # 18-7633

• Restores trim limit and trim sender functionality

• Improves trim gauge accuracy

• Built to match OEM specifications

• Durable marine-grade construction

Item Specifics

• Brand: Unbranded / Aftermarket

• MPN: 805320A03

• UPC: 0808282228774

• Condition: New Other (unused, may lack original packaging)

• California Prop 65 Warning: Yes

• Weight: Approx. 0.7–1 lb

What’s Included

• Trim Limit Switch

• Trim Sender Switch

• Wiring leads (as pictured)

Why This Kit Is Needed

Over time, trim senders commonly fail due to wear or water intrusion. Replacing the set allows:

• Accurate trim position on gauge

• Proper trim limit functionality

• Safer and smoother operation of the outdrive

• Prevents over-trimming and potential drive damage

Shipping & Seller Info

• Fast and free shipping with secure packaging

• Responsive seller — happy to answer compatibility questions

• Returns accepted