Skip to content
  • Home
  • Trailers
    • Heavy Duty Single Axle Boat Trailers
    • Heavy Duty Tandem Axle Boat Trailers
    • Heavy Duty Box Trailers
    • Specialty & Custom Trailers
    • Best Sellers
  • Trailer Parts
    • Axle Components
      • Bearings
      • Hubs
      • Bearing Buddies
    • Boat Trailer
    • Body Hardware
      • Cages
      • Covers
      • Bars
    • Brake Parts
      • Replacement Master Cylinder Cap - 45mm Internal Diameter
      • Cable Brake Pads
      • Hydraulic Brake pads
    • Braking Systems
    • Couplings
      • 1 7/8" Lever type Non-Braked , 2000kg 4 hole Coupling
      • 50mm" Lever type Non-Braked , 2000kg 4 hole Coupling
    • Jockey Wheels & Stands
      • Jockey Wheel Plates
      • Jockey Wheel
      • 190x75mm Solid Tyre Wheel - Nylon Hub
    • Suspension
    • Trailer Wheels
    • Lighting & Electrical
      • 7 pin Flat - 7 pin Flat - Curly Lead
      • Standard 7 Pin Connector Cord, 5 Core - Sale Price
      • LED Trailer Lights Suits ULTRA TRAILERS
    • Winches
      • Winch 3:1
      • Winch 5:1
      • Winch 10:1
  • What Size Trailer?
  • Resource & Technical Info
    • Hub Bolt Measuring PCD
  • Service & Repairs
  • Location & Hours
  • Contact Us
  • FAQs
  • Account
Ultra Trailers
Cart
  • Home
  • Trailers
    • Heavy Duty Single Axle Boat Trailers
    • Heavy Duty Tandem Axle Boat Trailers
    • Heavy Duty Box Trailers
    • Specialty & Custom Trailers
    • Best Sellers
  • Trailer Parts
      Trailer Parts
    • All
    • Axle Components
      • Bearings
      • Hubs
      • Bearing Buddies
    • Boat Trailer
    • Body Hardware
      • Cages
      • Covers
      • Bars
    • Brake Parts
      • Replacement Master Cylinder Cap - 45mm Internal Diameter
      • Cable Brake Pads
      • Hydraulic Brake pads
    • Braking Systems
    • Couplings
      • 1 7/8" Lever type Non-Braked , 2000kg 4 hole Coupling
      • 50mm" Lever type Non-Braked , 2000kg 4 hole Coupling
    • Jockey Wheels & Stands
      • Jockey Wheel Plates
      • Jockey Wheel
      • 190x75mm Solid Tyre Wheel - Nylon Hub
    • Suspension
    • Trailer Wheels
    • Lighting & Electrical
      • 7 pin Flat - 7 pin Flat - Curly Lead
      • Standard 7 Pin Connector Cord, 5 Core - Sale Price
      • LED Trailer Lights Suits ULTRA TRAILERS
    • Winches
      • Winch 3:1
      • Winch 5:1
      • Winch 10:1
    • 1 7/8 Trailer Coupling 4 Hole Non-Braked
      1 7/8 Trailer Coupling 4 Hole Non-Braked
      Regular price $68.79
      View
      50mm Trailer Coupling 4 Hole  Non-Braked
      50mm Trailer Coupling 4 Hole Non-Braked
      Regular price $98.79
      View
      7 pin Flat - 7 pin Flat - Curly  Lead
      7 pin Flat - 7 pin Flat - Curly Lead
      Regular price $56.71
      View
  • What Size Trailer?
  • Resource & Technical Info
      Resource & Technical Info
    • All
    • Hub Bolt Measuring PCD
    • Coupling Templates
      Coupling Templates
      Regular price $0
      View
      Hub Bolt Measuring PCD
      Hub Bolt Measuring PCD
      Regular price $0
      View
  • Service & Repairs
  • Location & Hours
  • Contact Us
  • FAQs
Account
Item added to cart. View cart and check out.
If you don’t see a part listed, email us — we can source it at a discount.

Trailer Options

At Ultra Trailers we give you the ability to customize your Boat or Box Trailer.  You can take your trailer away as is, or choose to add a number of great options to your trailer.
Trailer Bearing Kit NSK
Trailer Bearing Kit 1750kg (FOR ULTRA TRAILERS)
Regular price $61
View
Bearing Bubbies / Protector kit 45 mm
Bearing Bubbies / Protector kit 45 mm
Regular price $75.90
View
Heavy-Duty Jockey Wheel
Heavy-Duty Jockey Wheel
Regular price $170
View
LED Submersible Trailer Tail Lights
LED Trailer Lights Suits ULTRA TRAILERS
From $15
View
Trailer Heavy Duty Plastic Guards Single
Trailer Heavy Duty Plastic Guards
Regular price $99
View
Trailer Tyres with Rims
Trailer Tyres / Rims
Sold Out
View
1 7/8 Trailer Coupling 4 Hole Non-Braked
1 7/8 Trailer Coupling 4 Hole Non-Braked
Regular price $68.79
View
Trailer Brakes Hydraulic
Trailer Brakes
Sold Out
View
Trailer Spare Wheel Bracket
Trailer Spare Wheel Bracket
Sold Out
View
Box Trailer Cages
Box Trailer Cages
From $1,399
View
Box Trailer Covers
Box Trailer Covers
From $550
View
Box Trailer 2 Tier H Bars
Box Trailer 2 Tier H Bars
From $150
View
Prewired loom only with socket 1.5m
Prewired loom only with socket 1.5m
Regular price $32.79
View
Trailer Connection Box
Trailer Connection Box
Regular price $56.97
View
Trailer Warrant of Fitness
Trailer Warrant of Fitness & Registration Plate
Sold Out
View
Boat Fitting
Boat Fitting
Sold Out
View
TRAILPARTS 1750kg Hub stub set 5 x 4 1/2" 39mm stub end
TRAILPARTS 1750kg Hub stub set 5 x 4 1/2" 39mm stub end
Regular price $266.60
View
Trailer Bearing Kit NSK
Trailer Bearing Kit 1500kg Trojan
Regular price $47.91
View
50mm Trailer Coupling 4 Hole  Non-Braked
50mm Trailer Coupling 4 Hole Non-Braked
Regular price $98.79
View
Trailer Bearing Kit NSK
Trailer Bearing Kit 1750kg
Regular price $61
View

Ultra Trailers

Specializing in Boat & Box Trailers that have:

Heavy Duty Stronger Frames

Thicker Galvanizing

Longer Lasting

Quality NZ Parts

NSK Japanese Bearings

10 Year Structural Guarantee*

Short Lead Time

Locally Owned & Operated

Designed by Kiwis for Kiwis

Best Overall Steel/Galvanized Trailers

Proud Sponsors

Captivating International

Information

  • About Us
  • Customer Reviews
  • 10 Year Structural Guarantee
  • Gallery
  • Finance
  • Privacy Policy
  • Terms of Trade
  • Trademe Listings

Follow us

  • Facebook
  • Instagram

Enquiries

Office & Sales:

021 562 660

General :

0800 1000 55

sales@ultratrailers.co.nz

Keep in touch

© 2025, Ultra Trailers. Powered by Shopify
Payment methods
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
  • Choosing a selection results in a full page refresh.
  • Press the space key then arrow keys to make a selection.
  • Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device