Towing & Trailering

Boat Towing & Trailering

Boat Trailer Parts, Towing Gear & Launch Ramp Essentials

Shop boat trailer parts and towing accessories for safer road trips, easier launch days, and better protection between home, storage, service, and the ramp. Find bow rollers, bow stops, trailer winches, brake actuators, hubs, bearings, lights, wiring, tie-down straps, safety chains, couplers, bunks, guide-ons, jacks, and trailer maintenance parts.

Shop Towing & Trailering Search Trailer Parts Ask Parts Desk

Trailer fitment can depend on boat weight, hull shape, axle rating, coupler size, brake type, wheel size, roller shaft size, and local towing requirements.

Popular Towing & Trailering Searches

Find the Trailer Part or Towing Accessory You Need

Use these links to narrow the collection by the part or job. When a dedicated collection is not available, the link opens a Marisol Marine product search.

All Towing & TraileringMain collection for boat trailer parts and towing accessories. Trailer WinchesHand winches, winch straps, hooks, mounting parts, and retrieval gear. Bow RollersBow rollers, shaft sizes, replacement rollers, and bow-support parts. Bow StopsV-bow stops, rubber bow stops, stops for winch posts, and replacement hardware. Brake ActuatorsDisc and drum actuator searches for surge-brake trailer systems. Trailer BrakesDisc brakes, drum brakes, brake lines, couplers, and brake service parts. Hubs & BearingsHub kits, bearings, seals, grease caps, spindle parts, and maintenance supplies. Trailer LightsSubmersible lights, marker lights, wiring, plugs, adapters, and lighting kits. Tie-Down StrapsTransom straps, bow straps, ratchet straps, cam straps, and hold-down gear. Safety ChainsChains, hooks, breakaway parts, and towing safety connection hardware. Couplers & Hitch GearCouplers, hitch balls, receivers, locks, pins, and towing connection parts. Trailer JacksTongue jacks, swivel jacks, jack wheels, stands, and replacement parts. Bunks & CarpetBunk boards, bunk carpet, brackets, guides, and hull-support replacements. Guide-OnsLoading guides, guide posts, brackets, and launch-ramp alignment accessories. Tires & WheelsTrailer tires, wheels, lug hardware, valve stems, and road-trip spares. Grease & MaintenanceMarine grease, bearing protectors, lubricants, seals, and service supplies.

Support & Retrieval

Rollers, Bunks, Winches, Stops, and Guide-Ons

The trailer should support the hull evenly, hold the bow securely, and help the boat load straight at the ramp. Match rollers, bunks, stops, shafts, brackets, and guide-ons to the trailer frame, hull shape, and boat weight.

Rollers Bunk Brackets Winch Straps Guide Posts

Road Gear

Brakes, Bearings, Lights, Couplers, and Tie-Downs

Road safety depends on the trailer being rated, visible, connected, and secured properly. Check hubs, bearings, brakes, lights, tire condition, coupler fit, safety chains, and tie-downs before towing.

Dexter Actuators Trailer Wiring Transom Straps Bearing Kits

Secure the Boat

Use a bow connection, stern tie-downs, and properly rated straps so the boat cannot shift during braking, turns, or rough road conditions.

Check the Running Gear

Inspect tires, hubs, bearings, brakes, lights, wiring, coupler latch, safety chains, and the jack before every longer tow.

Launch With Control

Guide-ons, bunks, rollers, winches, and bow stops help line up the boat and reduce hull, trailer, and ramp stress.

Fitment Help

Measure Before Ordering Trailer Parts

Trailer parts often look similar but fit differently. Check roller width, shaft diameter, coupler ball size, axle rating, hub bolt pattern, brake type, light plug style, bunk bracket dimensions, and trailer frame size before ordering.

Contact Parts Desk Tie Down Engineering Dexter Marine

For rollers and bow stopsMeasure roller width, outside diameter, shaft diameter, bracket spacing, and the contact point on the hull.

For brakes and actuatorsMatch disc or drum brake type, actuator rating, coupler size, axle capacity, and brake-line configuration.

For hubs and bearingsConfirm bearing numbers, seal size, hub style, bolt pattern, spindle size, and axle rating before replacing parts.

For lights and wiringUse marine-ready lighting and confirm plug type, wire routing, grounding, submersible use, and corrosion protection.

Towing & Trailering FAQ

Choosing Boat Trailer Parts

What should I check before towing a boat?

Check tire condition and pressure, wheel bearings, hub temperature, brake operation, lights, wiring, coupler latch, hitch ball size, safety chains, winch strap, bow eye connection, and stern tie-downs.

How do I choose the right bow roller or bow stop?

Match the roller or stop to the shaft diameter, bracket width, trailer geometry, hull contact point, and boat weight. Measure the old part when possible.

Are disc and drum brake actuators interchangeable?

No. Trailer brake actuators must be matched to disc or drum brakes, trailer weight rating, coupler size, brake-line layout, and the braking system installed on the trailer.

When should trailer bearings be inspected?

Inspect bearings before long trips, after submersion-heavy use, if a hub runs hot, if grease looks contaminated, or if you notice noise, wobble, vibration, or uneven tire wear.

Shop Boat Towing & Trailering Equipment

Find trailer parts, towing gear, launch accessories, and maintenance items for safer road trips and smoother ramp days.

Shop Towing & Trailering Ask Parts Desk

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Bearing Buddy Grease Seal | 2 Pack

$21.37 - $21.37

$21.37

$21.37 - $21.37

$21.37

Item locally warehoused

For use with Bearing Buddy on trailers with brakes or as replacement seals. Lets seal ride on permanently smooth, corrosion-proof surface constantl...

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$21.37 - $21.37

$21.37

$21.37 - $21.37

$21.37

Bearing Buddy Grease Seal | 2 Pack

$21.37 - $21.37

$21.37

$21.37 - $21.37

$21.37

Item locally warehoused

For use with Bearing Buddy on trailers with brakes or as replacement seals. Lets seal ride on permanently smooth, corrosion-proof surface constantl...

View full details

$21.37 - $21.37

$21.37

$21.37 - $21.37

$21.37

Bearing Buddy Chrome Trailer Wheel Bearing Protector | 2 Pack

$49.75 - $49.75

$49.75

$49.75 - $49.75

$49.75

Item locally warehoused

The Bearing Buddy prevents wheel bearing failure on boat, snowmobile, ATV, RV and utility trailers. It eliminates bearing repacking and keeps water...

View full details

$49.75 - $49.75

$49.75

$49.75 - $49.75

$49.75

Bearing Buddy Grease Seal | 2 Pack

$13.86 - $13.86

$13.86

$13.86 - $13.86

$13.86

Item locally warehoused

For use with Bearing Buddy on trailers with brakes or as replacement seals. Lets seal ride on permanently smooth, corrosion-proof surface constantl...

View full details

$13.86 - $13.86

$13.86

$13.86 - $13.86

$13.86

Bearing Buddy Stainless Steel Trailer Wheel Bearing Protector | 2 Pack

$69.89 - $69.89

$69.89

$69.89 - $69.89

$69.89

Item locally warehoused

The Bearing Buddy prevents wheel bearing failure on boat, snowmobile, ATV, RV and utility trailers. It eliminates bearing repacking and keeps water...

View full details

$69.89 - $69.89

$69.89

$69.89 - $69.89

$69.89

Bearing Buddy Chrome Trailer Wheel Bearing Protector | 2 Pack

$59.99 - $59.99

$59.99

$59.99 - $59.99

$59.99

Item locally warehoused

The Bearing Buddy prevents wheel bearing failure on boat, snowmobile, ATV, RV and utility trailers. It eliminates bearing repacking and keeps water...

View full details

$59.99 - $59.99

$59.99

$59.99 - $59.99

$59.99

Bearing Buddy Trailer Brakes Spindo Seal | 2 Pack

$32.22 - $32.22

$32.22

$32.22 - $32.22

$32.22

Item locally warehoused

For use with Bearing Buddy on trailers with brakes or as replacement seals. Lets seal ride on permanently smooth, corrosion-proof surface constantl...

View full details

$32.22 - $32.22

$32.22

$32.22 - $32.22

$32.22

Bearing Buddy Chrome Trailer Wheel Bearing Protector | 2 Pack

$52.49 - $52.49

$52.49

$52.49 - $52.49

$52.49

Item locally warehoused

The Bearing Buddy prevents wheel bearing failure on boat, snowmobile, ATV, RV and utility trailers. It eliminates bearing repacking and keeps water...

View full details

$52.49 - $52.49

$52.49

$52.49 - $52.49

$52.49

Bearing Buddy Chrome Trailer Wheel Bearing Protector | 2 Pack

$52.49 - $52.49

$52.49

$52.49 - $52.49

$52.49

Item locally warehoused

The Bearing Buddy prevents wheel bearing failure on boat, snowmobile, ATV, RV and utility trailers. It eliminates bearing repacking and keeps water...

View full details

$52.49 - $52.49

$52.49

$52.49 - $52.49

$52.49

Bearing Buddy Chrome Trailer Wheel Bearing Protector | 2 Pack

$63.99 - $63.99

$63.99

$63.99 - $63.99

$63.99

Item locally warehoused

The Bearing Buddy prevents wheel bearing failure on boat, snowmobile, ATV, RV and utility trailers. It eliminates bearing repacking and keeps water...

View full details

$63.99 - $63.99

$63.99

$63.99 - $63.99

$63.99

Dutton-Lainson StrongArm Electric Winch – 120V AC / 12V DC

$1,519.69 - $1,519.69

$1,519.69

$1,519.69 - $1,519.69

$1,519.69

Item locally warehoused

Dutton-Lainson StrongArm® Electric Winch – 120V AC / 12V DCThe StrongArm® Electric Winch is built for demanding trailer and dock applications where...

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$1,519.69 - $1,519.69

$1,519.69

$1,519.69 - $1,519.69

$1,519.69

$281.09 - $281.09

$281.09

$281.09 - $281.09

$281.09

Item locally warehoused

Protects leading edge of motor's lower unit Reduces wear on steering mechanism Over the roller or bolt on installation High-strength cast aluminum ...

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$281.09 - $281.09

$281.09

$281.09 - $281.09

$281.09

Attwood Shock-Eze Spring-Loaded Transom Saver – Roller Mount, 27–36 in.

$200.79 - $200.79

$200.79

$200.79 - $200.79

$200.79

Item locally warehoused

Attwood Shock-Eze Spring-Loaded Transom Saver – Roller Mount, 27–36 in.Protect your outboard motor and transom from road vibration and bounce with ...

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$200.79 - $200.79

$200.79

$200.79 - $200.79

$200.79

23"-35" Bolt-On/Roller Mt. Adjustable Transom Saver

Attwood Swivl-Eze SP400RB Adjustable Transom Saver – Roller/Bolt Mount, 23–35 in.

$116.19 - $116.19

$116.19

$116.19 - $116.19

$116.19

Item locally warehoused

Attwood Swivl-Eze SP400RB Adjustable Transom Saver – Roller/Bolt Mount, 23–35 in.Protect your outboard motor and transom on every trip with the Swi...

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$116.19 - $116.19

$116.19

$116.19 - $116.19

$116.19

24"-36" Heavy Duty Adjustable Transom Saver, Roller/Bolt-On Mt.

Attwood Swivl-Eze SP4000ADJRB Heavy-Duty Adjustable Transom Saver – Roller/Bolt Mount, 24–36 in.

$146.09 - $146.09

$146.09

$146.09 - $146.09

$146.09

Item locally warehoused

Attwood Swivl-Eze SP4000ADJRB Heavy-Duty Adjustable Transom Saver – Roller/Bolt Mount, 24–36 in.Give your outboard motor and transom the protection...

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$146.09 - $146.09

$146.09

$146.09 - $146.09

$146.09

Springfield Guardian Deluxe Combo, Over The Roller & Bolt-On Motor Support Adjusts 29" to 41"

$296.79 - $296.79

$296.79

$296.79 - $296.79

$296.79

Item locally warehoused

Protects leading edge of motor's lower unit Reduces wear on steering mechanism Over the roller or bolt on installation High-strength cast aluminum ...

View full details

$296.79 - $296.79

$296.79

$296.79 - $296.79

$296.79

Dutton-Lainson 12V Electric Trailer Winch – 3,000 lb. Capacity

$1,417.79 - $1,417.79

$1,417.79

$1,417.79 - $1,417.79

$1,417.79

Item locally warehoused

Dutton-Lainson 12V Electric Trailer Winch – 3,000 lb. CapacityKeep your boat or trailer load under control with this heavy-duty 12V electric winch ...

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$1,417.79 - $1,417.79

$1,417.79

$1,417.79 - $1,417.79

$1,417.79

Swivl-Eze SP402 Small Bolt on Bracket for Adjustable Transom Saver

Attwood Swivl-Eze SP402 Small Bolt-On Mounting Bracket for Adjustable Transom Savers

$55.79 - $55.79

$55.79

$55.79 - $55.79

$55.79

Item locally warehoused

Attwood Swivl-Eze SP402 Small Bolt-On Mounting Bracket for Adjustable Transom SaversReplace a damaged or missing mounting bracket on your Swivl-Eze...

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$55.79 - $55.79

$55.79

$55.79 - $55.79

$55.79

SwivlEze Transom Saver Bolt-on Mount 24-36"

Attwood Swivl-Eze Heavy-Duty Adjustable Transom Saver – Bolt Mount, 24–36 in.

$128.19 - $128.19

$128.19

$128.19 - $128.19

$128.19

Item locally warehoused

Attwood Swivl-Eze Heavy-Duty Adjustable Transom Saver – Bolt Mount, 24–36 in.Protect your outboard motor and transom on every trailer trip with thi...

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$128.19 - $128.19

$128.19

$128.19 - $128.19

$128.19

Attwood Heavy Duty Transom Saver Adjustable (Roller/Bolt Mount 32"-44")

Attwood Heavy-Duty Adjustable Transom Saver – Roller/Bolt Mount, 32–44 in.

$161.99 - $161.99

$161.99

$161.99 - $161.99

$161.99

Item locally warehoused

Attwood Heavy-Duty Adjustable Transom Saver – Roller/Bolt Mount, 32–44 in.Keep your outboard motor and transom protected on every trip with this he...

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$161.99 - $161.99

$161.99

$161.99 - $161.99

$161.99

Attwood Transom Saver Adjustable 23" to 35" Roller Mount

Attwood Adjustable Transom Saver – Roller Mount, 23–35 in.

$114.49 - $114.49

$114.49

$114.49 - $114.49

$114.49

Item locally warehoused

Attwood Adjustable Transom Saver – Roller Mount, 23–35 in.Keep your outboard motor and transom protected during every trailer trip with this adjust...

View full details

$114.49 - $114.49

$114.49

$114.49 - $114.49

$114.49

Attwood Angled Adjustable-Reach Transom Saver – 30–60 in.

$325.59 - $325.59

$325.59

$325.59 - $325.59

$325.59

Item locally warehoused

Attwood Angled Adjustable-Reach Transom Saver – 30–60 in.Handle the trickiest trailer setups with the Attwood Angled Adjustable-Reach Transom Saver...

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$325.59 - $325.59

$325.59

$325.59 - $325.59

$325.59

24"-36" Heavy Duty Adjustable Transom Saver, Roller Mt., Bulk

Attwood Swivl-Eze Heavy-Duty Adjustable Transom Saver – Roller Mount, 24–36 in.

$130.79 - $130.79

$130.79

$130.79 - $130.79

$130.79

Item locally warehoused

Attwood Swivl-Eze Heavy-Duty Adjustable Transom Saver – Roller Mount, 24–36 in.Protect your outboard motor and transom on every trailer trip with t...

View full details

$130.79 - $130.79

$130.79

$130.79 - $130.79

$130.79

FulTyme RV 2128 Leveling Blocks, 10 pack (8 pads + 2 caps)

$0.19 - $0.19

$0.19

$0.19 - $0.19

$0.19

Item locally warehoused

Distributes vehicle weight more evenly—creates a more stable / secure surface Safe, versatile, and easy to use Easy to clean heavy duty polypropyl...

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$0.19 - $0.19

$0.19

$0.19 - $0.19

$0.19

44"-56" Heavy Duty Adjustable Transom Saver, Roller/Bolt-On Mt.

$172.99 - $172.99

$172.99

$172.99 - $172.99

$172.99

Item locally warehoused

Protects transoms by stabilizing engine and steering mechanism while trailering Supports the cantilevered weight of the motor Adjustable toggles w...

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$172.99 - $172.99

$172.99

$172.99 - $172.99

$172.99

Attwood Transom Saver Heavy Duty Adjustable 32-42"

Attwood Heavy-Duty Adjustable Transom Saver – 32–42 in.

$131.99 - $131.99

$131.99

$131.99 - $131.99

$131.99

Item locally warehoused

Attwood Heavy-Duty Adjustable Transom Saver – 32–42 in.Protect your outboard motor and transom on every trailer trip with this heavy-duty adjustabl...

View full details

$131.99 - $131.99

$131.99

$131.99 - $131.99

$131.99

Hitch & Coupler Lock Set Keyed Alike

$73.89 - $73.89

$73.89

$73.89 - $73.89

$73.89

Item locally warehoused

One hitch lock and one trailer lock keyed alikeTough deadbolt lock is easy to use and weatherproofBright chrome finish resists corrosionSoft-to-the...

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$73.89 - $73.89

$73.89

$73.89 - $73.89

$73.89

Attwood 10107 Lock N' Stow Outboard Support for Select Mercury Outboards

$319.99 - $319.99

$319.99

$319.99 - $319.99

$319.99

Item locally warehoused

Locks the outboard motor in the forward position while trailering, greatly reducing the damaging effects of road shock. Does not "tie" engine's low...

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$319.99 - $319.99

$319.99

$319.99 - $319.99

$319.99

$11.69 - $11.69

$11.69

$11.69 - $11.69

$11.69

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$11.69 - $11.69

$11.69

$11.69 - $11.69

$11.69

Seachoice 57360 Sq U-Bolt-3 1/16X4 7/8-(Bulk)

$12.39 - $12.39

$12.39

$12.39 - $12.39

$12.39

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$12.39 - $12.39

$12.39

$12.39 - $12.39

$12.39

Dexter® K68-539-00 - Free backing solenoid

$154.59 - $154.59

$154.59

$154.59 - $154.59

$154.59

Item locally warehoused

$154.59 - $154.59

$154.59

$154.59 - $154.59

$154.59

$29.99 - $29.99

$29.99

$29.99 - $29.99

$29.99

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$29.99 - $29.99

$29.99

$29.99 - $29.99

$29.99

Seachoice 57320 Sq U-Bolt-1 5/8X3 9/16-(Bulk)

$10.29 - $10.29

$10.29

$10.29 - $10.29

$10.29

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$10.29 - $10.29

$10.29

$10.29 - $10.29

$10.29

Seachoice 57400 Sq U-Bolt-1 9/16X4 1/16-(Bulk

$18.99 - $18.99

$18.99

$18.99 - $18.99

$18.99

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$18.99 - $18.99

$18.99

$18.99 - $18.99

$18.99

Seachoice 57350 Sq U-Bolt-3 1/16X3 7/8-(Bulk)

$17.99 - $17.99

$17.99

$17.99 - $17.99

$17.99

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$17.99 - $17.99

$17.99

$17.99 - $17.99

$17.99

Seachoice 57310 Rd U-Bolt-1 3/8X4 5/16-(Bulk)

$8.76 - $8.76

$8.76

$8.76 - $8.76

$8.76

Item locally warehoused

Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. Bulk Pack.

$8.76 - $8.76

$8.76

$8.76 - $8.76

$8.76

Towing & Trailering

Boat Trailer Parts, Towing Gear & Launch Ramp Essentials

Find the Trailer Part or Towing Accessory You Need

Rollers, Bunks, Winches, Stops, and Guide-Ons

Brakes, Bearings, Lights, Couplers, and Tie-Downs

Secure the Boat

Check the Running Gear

Launch With Control

Measure Before Ordering Trailer Parts

Helpful Gear Around the Ramp, Dock, and Trailer

Choosing Boat Trailer Parts

Shop Boat Towing & Trailering Equipment

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