Product Description

The AL-KO Stainless Steel Hydraulic Disc Brake Calipers (P/N 341051) are genuine AL-KO hydraulic disc brake calipers designed to deliver reliable braking performance for boat trailers, caravans, horse floats, car trailers and commercial trailers.

Featuring genuine stainless steel pistons, these calipers provide excellent resistance to rust and corrosion, making them an ideal choice for marine and coastal environments where conventional pistons can seize over time. The calipers are suitable for hydraulic disc brake systems using rotors between 12 mm and 15 mm thick and can be operated by either a hydraulic override coupling or an Electric Over Hydraulic (EOH) brake actuator.

This kit includes two complete hydraulic brake calipers and one set of brake pads, making it an excellent solution for replacing both calipers on a single axle.

Features & Benefits

• Genuine AL-KO Hydraulic Disc Brake Calipers
• Part Number: 341051
• Supplied as a pair
• Includes brake pads
• Genuine stainless steel pistons
• Excellent corrosion resistance
• Ideal for marine and saltwater environments
• Suits 12 mm to 15 mm brake rotors
• 88.9 mm mounting hole centres
• Recommended operating pressure: 1000 PSI
• Compatible with hydraulic override couplings
• Compatible with Electric Over Hydraulic (EOH) brake actuators including the AL-KO iQ7
• Genuine AL-KO quality

Specifications

Suitable Applications

Suitable for:

• Boat trailers
• Car trailers
• Caravans
• Horse floats
• Plant trailers
• Equipment trailers
• Commercial trailers

These calipers are suitable for compatible hydraulic disc brake systems using brake rotors between 12 mm and 15 mm thick.

Why Choose AL-KO Stainless Steel Calipers?

Unlike conventional hydraulic brake calipers that use standard pistons, these genuine AL-KO calipers feature stainless steel pistons designed to resist corrosion and reduce the risk of piston seizure. This makes them an excellent choice for boat trailers and trailers regularly exposed to moisture or coastal conditions.

With genuine AL-KO engineering, excellent parts availability and proven reliability throughout Australia, these calipers are a trusted upgrade for trailer owners looking for long-term braking performance.

What's Included

• 2 × Genuine AL-KO Stainless Steel Hydraulic Disc Brake Calipers
• 4 × Genuine AL-KO Brake Pads (1 complete pad set – suitable for both calipers)
• Manufacturer's Installation Information (where supplied)

Not Included

• Brake rotors
• Hydraulic brake lines
• Mounting bolts
• Hydraulic brake fluid
• Brake actuator
• Caliper mounting brackets

Complete Your Installation

To complete your hydraulic brake installation, we recommend:

Brake Actuators

• AL-KO iQ7 Electric Over Hydraulic Brake Actuator
• Hydrastar HBA12 Brake Actuator
• Hydrastar HBA16 Brake Actuator
• Dexter Electric Over Hydraulic Brake Actuators

Hydraulic Components

• Stainless Steel Hydraulic Brake Line Kits
• Hydraulic Brake Fluid
• Brake Rotors
• Hydraulic Brake Fittings

Service Parts

• AL-KO Hydraulic Brake Pad Sets
• AL-KO Caliper Service Kit (P/N 341082)
• AL-KO Stainless Steel Caliper Piston (P/N 341083SS)
• AL-KO Slide Pin Kit (P/N 341081)
• Wheel Bearing Kits
• Bearing Seals

Frequently Asked Questions

Are these genuine AL-KO brake calipers?

Yes. These are genuine AL-KO hydraulic disc brake calipers.

Are these sold individually or as a pair?

These calipers are supplied as a pair and include 4 genuine AL-KO brake pads (1 complete pad set), providing everything required to replace the calipers and brake pads on one axle.

Do the brake pads come fitted?

Yes. The kit includes 4 genuine AL-KO brake pads, 

What brake rotor thickness do they suit?

These calipers are designed for brake rotors between 12 mm and 15 mm thick.

What is the mounting hole spacing?

The mounting hole centres are 88.9 mm.

Can these be used on boat trailers?

Yes. The genuine stainless steel pistons provide excellent corrosion resistance, making them an ideal choice for marine trailer applications.

Can I use these with an Electric Over Hydraulic brake actuator?

Yes. They are compatible with Electric Over Hydraulic brake actuators, including the AL-KO iQ7, Hydrastar and Dexter EOH systems.

What operating pressure are they designed for?

The recommended operating pressure is 1000 PSI.

Can I purchase replacement service parts?

Yes. Replacement pistons, seal kits, slide pin kits and brake pads are all available separately.

Why Buy From Trailer Spares Online?

• Genuine AL-KO products
• Expert trailer brake advice
• Fast Australia-wide shipping
• Large range of hydraulic brake components
• Experienced Australian trailer parts specialists
• Competitive pricing and local support