Mercury MerCruiser Bravo III Sterndrive 2.20:1 – 5441500TP
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Mercury MerCruiser Bravo III Sterndrive 2.20:1 – Part No. 5441500TP
The Bravo III is Mercury MerCruiser’s flagship dual contra-rotating sterndrive, designed for heavier gas and diesel-powered boats where tracking, acceleration, and slow-speed control are priorities. This is a complete replacement drive assembly at the 2.20:1 gear ratio, built to original equipment specifications for serial number 0W250000 and up. The contra-rotating propeller system eliminates propeller torque steer, delivers exceptional reverse thrust, and allows the use of smaller-diameter props for better performance in a wide range of hull applications.
Part Details
- Part Number: 5441500TP
- Brand: Mercury Marine / MerCruiser
- Official Product Type: Complete Sterndrive Assembly
- Gear Ratio: 2.20:1
- UPC: 678633036958
- Serial Number Range: 0W250000 and up
- System: Sterndrive / Propulsion
- Condition: New OEM
Compatible Applications
- MerCruiser Bravo III applications requiring a 2.20:1 ratio drive
- Gas engines rated up to 525 HP
- Diesel engines rated up to 370 HP
- Serial number 0W250000 and up — verify against your transom assembly and original drive model before ordering
- Commonly paired with small-block, big-block, and medium diesel marine engine packages
This drive does not include the gimbal housing, trim cylinders, or propellers. Verify the original drive ratio, serial number range, and transom assembly compatibility before ordering.
Related Variants
- SeaCore version: 5L41500TP (stainless steel and titanium corrosion protection for saltwater)
- Bravo III X version: 5447500TZ (extended hub for specific applications)
- 2.00:1 ratio alternative: Mercury MerCruiser Bravo III Drive 2.00:1 – 5441600TP
What’s Included / Not Included
- ✅ Complete sterndrive lower and upper drive assembly
- ❌ Gimbal housing (not included — reuse existing or order separately)
- ❌ Trim cylinders (not included)
- ❌ Propellers (not included — select based on engine, ratio, and hull)
- ❌ Bellows kit (inspect and replace existing bellows during installation)
Dimensions & Weight
- Drive weight: approximately 151 lb (68.5 kg)
- Freight shipment required — contact us for shipping options before ordering
Installation Notes
- Confirm the 2.20:1 ratio matches the original drive before ordering
- Inspect and replace transom bellows, gimbal bearing, shift cable, and anodes before mounting the replacement drive
- Verify alignment using Mercury’s alignment tool before final installation
- Fill with the correct Quicksilver High Performance Gear Lube before operation
- Select propellers appropriate for the engine, gear ratio, and hull — propeller selection significantly affects performance and engine RPM
- Follow the Mercury MerCruiser service manual for torque specifications and installation sequence
Service Interval
Gear lube should be changed at the intervals specified in the Mercury service manual (typically annually or every 100 hours). Inspect bellows, anodes, and gimbal bearing at each annual service. Replace the drive assembly when gear damage, housing damage, water intrusion, or bearing failure makes repair impractical.
Parts Desk Insights
Best use case: Complete drive replacement when the existing Bravo III has suffered major gear or housing damage, severe corrosion, or water intrusion where repair cost exceeds practical rebuild value. Also the correct path when upgrading from a Bravo I or II to the Bravo III dual-prop system on a compatible transom assembly.
Common mistakes: Ordering the wrong gear ratio — the 2.20:1 and 2.00:1 drives are not interchangeable and will produce significantly different engine RPM and performance characteristics. Always verify the ratio stamped on the original drive before ordering. Also confirm the serial number range: Bravo III drives changed specifications at 0W250000, and earlier transom assemblies may require different components. Do not assume propellers from the old drive will work correctly on the replacement without re-evaluating prop selection for the ratio.
Related Parts & Accessories
- Mercury MerCruiser Bravo Driveshaft Housing Seal Kit 16709A2
- Mercury MerCruiser Bravo Lower Shift Cable Assembly 865437A02
- Mercury MerCruiser Bravo III Front Propeller Nut 859131
- Mercury MerCruiser Aluminum Prop Nut Anode Kit Bravo III 865182Q01
- MerCruiser Bravo Upper Driveshaft Housing Seal 12708
- Quicksilver Anodic Plate 76214Q5
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.