If you’re seeking a sturdy, reliable way to mount an auxiliary or trolling motor on a fiberglass boat, these brackets offer strong construction, adjustable positions, and corrosion resistance. They’re best for boat owners needing durable, heavy-duty support for 2- and 4-stroke motors, easy height adjustment, and secure mounting. Ideal buyers include offshore anglers, casual cruisers with added trolling needs, and paddlers upgrading to a dependable auxiliary motor.
| Product | Best For | Key Benefit |
|---|---|---|
| Panther 55-0410 Auxiliary Outboard Bracket (10″) — Marinetech | 4-stroke users needing extra weight handling | Five vertical positions; anodized aluminum; heavy-duty mounting board |
| Outboard Motor Bracket Auxiliary Stainless Steel 20HP — Mojiate | 2-stroke motors up to 20 HP | Marine-grade stainless; reinforced welded frame |
| Marinetech Panther 550416 Auxiliary Outboard Bracket (16″ Travel) | 4-stroke setups with longer shaft | Four vertical positions; torsion springs; extra-wide board |
| YaeMarine 2 Stroke Outboard Bracket Kicker (Up to 25HP) | 2-stroke motors up to 110 lbs | All stainless stamped; 10.5″ lift; not for 4-stroke |
| FUTURUP Boat Outboard Motor Bracket (7.5–20 HP) | Light to mid-weight motors | Aluminum body; retractable bracket; 4-position height |
Panther 55-0410 Auxiliary Outboard 4-Stroke Bracket

Best for: anglers or skippers using a modern 4-stroke auxiliary motor. This bracket offers adjustable five-position vertical travel to adapt to water and load changes. It uses an anodized aluminum frame designed to withstand the torque of longer-shaft engines and heavier modern units. The 2-inch-thick mounting board and aircraft-grade hardware provide a sturdy platform, while stainless torsion springs help counterbalance the motor weight for easier adjustments.
Why selected: four-stroke compatibility and flexible height options address varied conditions, with a corrosion-resistant build suitable for saltwater use. Caution: ensure your boat transom mounting area can support the bracket’s weight and torque load.
Outboard Motor Bracket Auxiliary Stainless Steel 20HP — Mojiate

Best for: 2-stroke motors up to 20 HP requiring robust stainless steel supports. The unit features a welded, reinforced frame and corrosion-resistant materials, with mounting dimensions tailored to mid-sized auxiliary applications. The base uses plastic, which helps with weight management and installation flexibility.
Why selected: strong 2-stroke compatibility and heavy-duty stainless build make it reliable for saltwater environments. Limitation: base material plastic may be less durable under constant heavy use compared to full metal bases.
Marinetech Panther 550416 Auxiliary Bracket — 16″ Travel

Best for: boats needing extended vertical travel for a 4-stroke motor. The bracket supports four positions, with an anodized aluminum frame designed to handle higher torque from longer shafts. The broad mounting board plus stainless hardware enhances durability and stability.
Why selected: suitable for boats that require more reach and stronger mounting in rougher water. Caution: verify clearance for the longer vertical travel to avoid interference with cockpit or railing components.
YaeMarine 2 Stroke Bracket Kicker (Up to 25HP)

Best for: 2-stroke gear up to 110 lbs, ideal for lightweight trolling or auxiliary setups on smaller boats. The bracket features all stainless stamping and a compact footprint, with a transom mounting area sized for secure installation. Vertical lift is 10.5 inches, providing a practical range for many small to mid-sized boats.
Why selected: corrosion resistance and a compact design suit smaller vessels or understated installations. Limitation: not recommended for 4-stroke engines, which can require different mounting geometry and weight distribution.
2 Stroke Outboard Bracket Kicker for Boat Up to 20HP — Haida

Best for: 2-stroke motors up to 20 HP needing a simple, robust mount. The unit uses 304 stainless steel with a plastic base and offers a straightforward mounting footprint with a relatively compact holding capacity. Manual lifting is required to raise and lower the motor.
Why selected: solid metal construction and straightforward operation for basic trolling setups. Caution: manual lift means more effort for frequent adjustments; ensure you’re prepared for the mechanical action.
FUTURUP Boat Outboard Bracket (7.5–20 HP)

Best for: light to mid-weight outboard motors within the 7.5–20 HP range. This aluminum bracket with a plastic base offers a retractable design, reinforced welded frame, and a wide track for added stability. Four-position height adjustment plus a retractable feature improves on-engine efficiency during transit.
Why selected: good balance of weight, durability, and practicality for smaller boats or coastal trolling. Limitation: verify compatibility with your motor’s mounting pattern and shaft length before purchase.
Buying Guide: How to Choose the Right Fiberglass Outboard Bracket
- Motor type and horsepower: Choose a bracket that supports your motor’s weight, shaft length, and horsepower. Some brackets are optimized for 2-stroke, others for 4-stroke; confirm suitability.
- Mounting surface and compatibility: Check transom dimensions, mounting board size, and hole patterns to ensure proper fit on your fiberglass boat.
- Adjustment range: If you frequently encounter different water conditions or load, seek brackets with multiple vertical positions and easy adjustments.
- Material and corrosion resistance: For saltwater use, prioritize marine-grade stainless steel or anodized aluminum with quality hardware to resist corrosion.
- Weight and balance: Heavier brackets affect boat trim; consider gravity and torque when installing on smaller or lighter vessels.
- Installation and maintenance: Look for straightforward mounting, secure fasteners, and ease of periodic maintenance to extend bracket life.
FAQ
- What is the typical lift height to consider for a trolling bracket? Answer: Lift height varies from about 10 inches to 16 inches in common units; choose based on your engine shaft length and water conditions.
- Are all brackets suitable for saltwater? Answer: Not always. Prefer marine-grade stainless steel or anodized aluminum materials for saltwater durability.
- Do brackets require professional installation? Answer: Many brackets are designed for DIY installation with standard tools, but confirm mounting torque specs and wiring clearance for safety.
- Can I use a 2-stroke motor on a bracket rated for 4-stroke? Answer: It depends on weight and mounting compatibility; verify the bracket’s load rating and mounting pattern for your motor.
- Is a retractable bracket better than a fixed one? Answer: Retractable brackets offer easier trailering and storage; fixed brackets can provide consistent stability in rougher waters.
- What maintenance is recommended for fiberglass boat brackets? Answer: Regularly inspect mounting bolts, springs, and welds; clean corrosion-prone areas and lubricate moving parts as specified by the manufacturer.