SEHNSUCHT 12" x 2" Trailer Brake Drum Kit — 6‑Hole 5.5" Bolt Circle, Fits 5200–6000 lb Axles

SEHNSUCHT's 12" x 2" 6-hole trailer brake drum kit is a complete replacement hub/drum assembly built for 5200–6000 lb axles, providing a corrosion-resistant iron drum, bearings, seal, dust cap and hardware for 6×5.5" bolt circles.

When a worn or damaged brake drum threatens trailer safety, this kit gives you a ready-to-install replacement that fits standard-lube #42 spindles and 12" drum brake systems. The assembly combines a robust iron drum treated for rust resistance with matched bearings, a grease seal, dust covers and hub nuts so you replace the whole hub/drum in one service visit. It’s engineered for trailers, RVs and light semi applications rated around 5200–6000 lb axle capacity.

Will this drum fit my trailer axle and spindle?

Check three key dimensions: bolt circle, spindle type, and bearing sizes. This SEHNSUCHT drum uses a 6-hole 5.5" bolt circle and is designed specifically for #42 spindles and standard-lube axles, not for Nev-R-Lube or certain Airstream Classic models made after July 2005.

• Bolt pattern: 6 holes on a 5.5" bolt circle.
• Spindle compatibility: #42 spindle, standard-lube style only.
• Bearing IDs: includes replacements for 25580 (I.D. 1.75", O.D. 3.263") and 15123 (I.D. 1.25", O.D. 2.44").

What parts are included in the kit and why that matters?

The kit arrives with all components needed to restore a hub/drum assembly, so you don’t need to source parts separately. Having the matched bearings, correct grease seal, dust cover and hub nuts ensures easier installation and reduces the risk of mismatched components that could cause premature wear.

• 1 iron drum/hub assembly (12" x 2").
• Bearings: inner rings included for 25580 and 15123 sizes.
• Grease seal (I.D. 2.229", O.D. 3.372", height 0.375") and dust cover with rubber plug.
• Six 1/2-20 UNF hub nuts to secure the assembly.

How durable is this drum in real-world conditions?

The drum is made from high-grade iron and receives an electroplated finish to slow corrosion and protect the metal surface. That treatment helps maintain structural integrity across wet, salty, or dusty operating environments and extends the time between replacements compared with untreated parts.

• Material: heavy-duty iron for strength under load.
• Surface protection: electroplating to resist rust and corrosion.
• Designed for emergency braking responsiveness in varied conditions.

Are there any installation notes or exceptions I should know?

Installation is straightforward but the dust cap requires hammer seating and the kit is not compatible with Nev-R-Lube axles or certain Airstream Classic trailers built after July 2005. Always verify spindle type, bolt circle, and bearing dimensions before purchase to avoid fitment issues.

• Dust cap: must be installed by carefully hammering into place.
• Not compatible: Nev-R-Lube axles and some Airstream Classic models (post-July 2005).
• Intended for standard-lube #42 spindles and 12" drum brake systems.

Who this is for: This SEHNSUCHT drum kit is aimed at trailer owners, RV enthusiasts, fleet managers and light semi operators who need a complete, corrosion-protected replacement for 12" drum brakes on 5200–6000 lb axles. Choose this kit when you want matched bearings and seals included, straightforward installation for standard-lube #42 spindles, and extra surface protection to withstand road and weather exposure.