The ‘Grunter’ winch has been custom designed and built essentially for one operation, winching boats onto trailers. For years the world has been putting up with cheap and nasty Chinese winches which probably work for a small tinny, however quickly fail if your boat is a decent size and weight. Any half decent winches out there on the market are slow and just don’t deliver value for money.

Sherpa Grunter Electric Trailer Winch
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'Grunter' Electric Boat Trailer Winch

Regular price
Sale price
Model: SBTW10000

Finally a high quality and powerful trailer winch has been designed and built with the purpose task of winching boats and vehicles onto trailers. Not only are these winches fast and strong, but they also come with some exciting features which set them apart from anything else on the market.

  • Available in 12 or 24 Volt
  • Genuine Albright solenoid electrics
  • 10m of webbing suits boats and vehicles of all sizes
  • Electronic brake design ensures positive engagement
  • IP68 Rated
Electric Boat Trailer Winch
  • High speed for faster recoveries
  • 316 stainless steel fittings, cross members and drum 
  • Albright heavy duty solenoid as standard
  • Waterproof hoist style hand remote control with optional wireless kit.
  • Quality Sherpa 4x4 construction and components
  • Now available in HP model for larger boats
About the Winch

This winch has been custom designed and built essentially for one operation, winching boats onto trailers. For years the world has been putting up with cheap and nasty Chinese winches which probably work for a small tinny, however quickly fail if your boat is a decent size and weight. Any half decent winches out there on the market are slow and just don't deliver value for money.
Sherpa 4x4 have used their extensive knowledge of the winch and hoisting industry to build a task specific boat trailer winch. This winch is different to anything else on the market and will outperform the competition. Designed to rival the homemade winches you sometimes see professional fisherman using with starter motors and large flywheels, the Sherpa winch delivers similar high performance from a compact, safe and low maintenance design.

  • Motor - A 6hp series wound heavy duty motor is used to drive the winch. Using a large oversized motor means the winch is hardly working and therefore runs cooler and as a result lasts longer. Yes for a large motor you need large cables, however this is covered and the winch is supplied with a wiring kit which allows a good power supply from your vehicles engine bay to the rear of your vehicle, through a high amperage plug and into your winch.
  • Tough & Durable - The tooling from the Sherpa 4x4 winches has been reused meaning you are getting the strength and build quality from a proven quality offroad winch in a boat trailer winch. Sherpa use aluminum winch bodies making their winches lighter and resistance to corrosion without sacrificing strength.
  • Braking Design - Sherpa winches are known for their superior brake designs with their 4x4 winches housing the brake in the gearbox. For the boat trailer winch a completely new design has been incorporated and now the brake is moved to the motor. The brake design is electric meaning the brake is released when you 'winch in' or 'winch out', however activates as soon as you release the button. This design makes for a very strong and fully controlled winch brake design and it is well suited to the operating environments of boat trailer winches.
  • Quality gearbox - A new gearbox ratio has been designed and built specifically to optimise the boat trailer winches operation. These are high quality cut gears not sintered steel like your cheap winches. The selected ratio is a good balance between speed, pulling power and balancing amperage draw.   
  • Electrics - Sherpa only use the highest quality genuine Albright solenoids across their full range of winches and this has been continued in their boat trailer winch. Customers demand reliability and performance and Albright deliver with the electrical components on this winch. Sherpa winches are IP68 rated.
  • Powerful- These winches have been designed to still achieve 3500 lb of vertical lifting capacity on their most outer layer making them suitable for hauling large heavy boats up ramps. This winch will retrieve boats weighing up to 12,150 lb on a 45 degree inclined ramp without having to double line pull. Now also available is a HP model which is geared lower and slower with even more power. Designed for boats weighing 9,900 lb - 20,000 lb or for people dragging big boats onto trailers without rollers. 
  • Simplicity - The Sherpa boat trailer winches are supplied with everything needed to mount and wire the winch at home. Whilst we recommend the services of a auto-electrical to safely run the cables, instructions and components are supplied in the box to make installation a breeze. Generous cabling is supplied in the box to suit large 4x4's such as the 200 series Landcruiser however longer cabling can be provided on request for larger American style of trucks.
  • Warranty and Parts - 5 Year warranty. A complete range of spare parts are also available in Australia if ever required. 
Albright Winch Solenoids
Genuine Albright Solenoids

All Sherpa 4x4 winches come with genuine Albright solenoids! Incorporated into our electrics is a custom made version of the DC88P solenoid designed specifically by Albright International for the Sherpa 4x4 control boxes. With 70 years experienced in contactor design, these are by far the best winch solenoids available. Capable of handling up to 800 amps, almost twice the maximum capacity of the winch. Contact plating is second to none, increasing the duty cycle over other winches. As seen in our water submersion testing videos the Albright solenoids can be run for significant time under water without moisture ingress. The cheap Chinese solenoids used in the majority of winches will fail under extreme conditions and under high amperage load.

Optional Extras:
  • 'Plug n Play' Wireless remote kits
  • Sherpa 4x4 recommends the use of a battery isolation switch on all installations. A 500A continuous rated switch suitable with Sherpa 4x4 winches can also be supplied.
  • Synthetic rope alternative to webbing strap. This option is supplied for customers to fit themselves as an alternative to the 50mm webbing. You will received 12m x 7mm rope with a MBS of 9,480 lb. A drum fixing lug is fitted to one end and a stainless steel hook the other end.
Boat Trailer Winch Technical Details
Specifications Value

Boat weighing up to 12,150 lb (5,500 kg)

HP model - Boats 9,900 lb to 20,000 lb (4,500 kg to 9,000 kg)

Vertical Lift Capacity

10,000lb (4,545kg)

HP model - 17,000lb (7,200kg) 

Motor 6.6hp series wound (12V or 24V options)
Gears Power In, Power Out and free spool
Gear reduction ratio 3 stage planetary gearbox
Cable 33 ft (10m) of heavy duty 2" (50mm) webbing strap rated to 11,000lb
Mounting Bolt Diameter 0.44" (11.2mm)
Drum Size (Dia x Length) 2.52" x 2" (64mm x 50mm)
Mounting Bolt Pattern

3.425" x 4.5"  (87mm x 114.3mm)

Industry standard bolt pattern.

Weight ~55 lb (25kg)
Clutch 180 degree turn, free spooling, slide ring gear
Brake Electric in motor
Solenoid Albright International Heavy Duty 800 amp mounted in control box
Duty Cycle Intermittent

Includes ample cable to run from engine bay to tow bar on a Toyota Landcruiser 200 series. Additional length can be provided for American vehicles on request. Includes heavy duty plug set from vehicle to trailer

Control Box

Waterproof wired hand remote

Winch and control box mounting hardware and brackets

Water Ingress Rating IP68
Certification CE - designed to meet European standards
Warranty 5 Years
Performance Data for 12V Boat Winch
Line Pull (Lb) Line Speed (ft/min) Motor Current (A)
0 41.0 75
1000 28.2 125
2,000 24.0 185
4,000 15.4 245
6,000 12.1 325
8,000 9.2 375
10,000 6.8 425
Sherpa 4x4 Winch Testing
Salt Water Submersion Test

Customer Reviews

Based on 15 reviews
Constantine Karamargin
Powerful Grunter

What a great boat winch for my Sea Ray 250 SLX, on my roller trailer. Installed it myself and the power cables for my F150. Took about 6 hours. Very quick and powerful!

Jeffrey Millard
Best Purchase I’ve made for my boat yet!

It took two days for me to install this winch and make launching and recovering my 21’ boat as easy as pie! It has turned my boat trailer into a work of art!

Tremendous Boat Winch!

The box came with everything I needed to place this excellent machine atop the winch tower. Now my 21’ Yamaha jet boat slides onto the bunks with absolutely no stress or strain. This winch is powerful, and fast. I’m really glad I made the right choice and grabbed a Grunter! I do wish I could show off a picture of the install. This was the best upgrade I’ve purchased to date!

Dean DelleDonne

'Grunter' Electric Boat Trailer Winch

Ed Harabin

I’m waiting for the weather to warm up. I read the operating manual a few times.
I do have to fit a customized bracket to my trailer to make the winch sit properly.
Hopefully, in a few weeks it will be installed and ready to test out.
I’ll get back to you when I make my 1st launch.

Thank you

Ed Harabin
Double Anchor