Broce / Superior Broom Complete Front Brake Kit - 12" Dacromet Rotors, Calipers, Bearings & Seals - Replaces 203544 & 203554

Complete Front Brake Kit for Broce & Superior Street Brooms

Your broom's front brakes are done. The rotors are scored and warped, the calipers are seized from corrosion, and the bearings are shot. You know you need to do both sides — replacing just one wheel and leaving the other to fail next month is a recipe for another teardown, another day of downtime, and another parts order. The dealer price for all of this? Over $1,200 — and that's before your mechanic even picks up a wrench.

This kit does the entire front brake system — both wheels, both calipers, all bearings, all seals — for $999. That's over $250 in savings vs buying the same components from the dealer, and you get the Dacromet corrosion-resistant upgrade that will outlast the original equipment by years. One order, one box, one job. Done.

What's in the Kit

Everything you need for a complete front brake overhaul on both wheels:

Component	Qty	Details
12" Integral Hub & Rotor	2	Dacromet coated, 6 on 5.5" bolt pattern, 1/2" studs. One-piece hub/rotor casting. Bearing races pre-pressed. (Replaces Broce 203544)
Disc Brake Caliper	2	Dacromet coated, 2-1/4" stainless steel piston. Loaded with ceramic brake pads — ready to bolt on. (Replaces Broce 203554)
Inner Wheel Bearing (25580)	2	Tapered roller bearing, 1.75" ID. One per hub.
Outer Wheel Bearing (15123)	2	Tapered roller bearing, 1.25" ID. One per hub.
Grease Seal (2.25" ID)	2	Double lip seal. One per hub. Keeps grease in, contamination out.

Total: 10 components. Two complete wheel assemblies ready to install.

Why Buy the Complete Kit?

Here's the reality: if one side's brakes have failed from corrosion and wear, the other side is in the same condition. It just hasn't failed yet. Buying individual components means:

• Multiple separate orders and shipments
• Risk of mismatched parts across sides
• Coming back in 2–4 weeks to do the other side when it inevitably fails
• Twice the labor for tear-down, setup, and bleeding

The complete kit eliminates all of that. One order. One shipment. One brake job. Both wheels done at the same time. Matched components on both sides means perfectly balanced braking — no pull, no uneven wear, no surprises.

Dacromet Coated — Every Component

Both the rotors and calipers in this kit are Dacromet coated — the silver, multi-layer zinc/aluminum flake finish that provides 1,000+ hours of salt spray resistance. This is critical for street brooms:

• Rotors: The cooling vents stay clear and functional. Standard E-Coat rotors rust shut from the inside, trapping heat and reducing braking power.
• Calipers: The pistons stay free and functional. Standard E-Coat calipers seize within 1–2 seasons in wet sweeping conditions, leaving you with a machine that pulls to one side or won't stop.

This kit is purpose-built for machines that work in water, road salt, and abrasive debris all day.

Caliper Specs

• Piston: 2-1/4" (2.25") Stainless Steel — full-size for maximum stopping power
• Coating: Dacromet (Silver — Corrosion Resistant)
• Pads: Ceramic — Pre-Installed (Loaded). Consistent wet braking, low dust, reduced rotor wear
• Replaces: Broce 203554 / Superior 01-14100-130

Rotor Specs

• Diameter: 12"
• Style: Integral One-Piece Hub & Rotor Casting
• Bolt Pattern: 6 on 5.5" (Standard 5,200–6,000 lb Axle)
• Studs: 1/2" Wheel Studs
• Coating: Dacromet (Silver — Corrosion Resistant)
• Bearing Races: Pre-Pressed
• Replaces: Broce 203544

Bearing & Seal Specs

• Inner Bearing: 25580 (1.75" ID) — Standard 6,000 lb Spindle
• Outer Bearing: 15123 (1.25" ID) — Standard 6,000 lb Spindle
• Grease Seal: 2.25" ID, Double Lip Contact Seal

Compatible Equipment

Broce Broom

• Broce 350 Series
• Broce RC300
• Broce RJ350

Superior Broom

• Superior DT74
• Superior DT80
• Superior SM80

⚠️ Verify your bolt pattern (6 on 5.5") and rotor diameter (12") before ordering. Confirm Broce part numbers 203544 (rotor) and 203554 (caliper) in your parts manual. Contact us with your machine model and serial number if you're unsure about fitment.

Installation Overview

This is a complete front brake overhaul — plan for 2–4 hours total (both wheels). Here's the general process for each side:

1. Raise and support the front of the machine — chock the rear wheels
2. Remove the wheel
3. Remove the old caliper — disconnect the brake line (have a drain pan ready)
4. Remove the dust cap, cotter pin, castle nut, and flat washer
5. Slide the old hub/rotor off the spindle
6. Inspect the spindle — clean and polish with emery cloth if needed
7. Pack both new bearings with high-quality wheel bearing grease — every roller must be fully coated
8. Install the inner bearing (25580) into the new hub
9. Drive in the new grease seal — lip faces inward toward the bearing
10. Slide the new hub/rotor onto the spindle
11. Install the outer bearing (15123), flat washer, and castle nut — tighten to seat, then back off 1/4 turn and install a new cotter pin
12. Install the dust cap
13. Mount the new caliper and connect the brake line with new crush washers
14. Repeat on the other side
15. Bleed the entire brake system — start from the wheel furthest from the master cylinder
16. Top off brake fluid — DOT 3 or DOT 4 per your machine's specification
17. Pump the brake pedal until firm — do NOT drive until the pedal is solid
18. Bed in the new brakes — make 10–15 moderate stops from low speed to transfer pad material evenly to the new rotors

The Economics: Kit vs. Dealer

Component	Dealer Price (Each)	Qty	Dealer Total
Hub & Rotor (203544)	$293	2	$586
Caliper (203554)	$245–$353	2	$490–$706
Bearings & Seals	$25–$40	2 sets	$50–$80
Dealer Total			$1,126–$1,372
Our Kit Price			$999
Your Savings			$127–$373

Plus you get the Dacromet corrosion-resistant upgrade on every component.

Frequently Asked Questions

Can I buy the rotors and calipers separately instead?
Yes — we sell the hub/rotor assemblies (203544) and calipers (203554) individually. But the complete kit saves you money compared to buying everything separately, and you're guaranteed perfectly matched components for both sides.

Do the calipers come with brake pads?
Yes. Both calipers ship loaded with high-performance ceramic brake pads already installed. Ready to bolt on and stop.

What brake fluid do I need?
Check your machine's operator manual — most Broce and Superior brooms specify DOT 3 or DOT 4 brake fluid. You'll need approximately 1 quart for a complete system bleed after replacing both calipers.

Do I need to replace anything else while I'm in there?
Inspect the brake lines and fittings for cracking, corrosion, or leaks. Inspect the spindles for wear. Pick up new cotter pins (do not reuse) and crush washers for the brake line banjo fittings. If your brake lines are original and heavily corroded, this is the time to replace them.

Is this kit the same quality as what the dealer sells?
This kit is the Dacromet upgrade — in many cases it is actually better than what came on the machine originally. Many OEM brooms ship with E-Coat (black paint) calipers and rotors that corrode quickly in wet sweeping conditions. The Dacromet coating in this kit provides dramatically superior corrosion resistance. Your brakes will last longer than the originals.