FP604BK | 12" Bearing & Seal Kit 5200 lbs Trailers (Fits FP08-201-90)

FP604BK – BEARING & SEAL KIT FOR 5,200–7,000 LB TRAILER AXLES (FITS FP08-201-90)

PART NUMBER(S):
Fleet Products: FP604BK (New) | OE: Dexter K71-709-00, National 473336, BK3-100

DESCRIPTION:
Model: Complete Bearing & Seal Kit
Vehicles: Dexter, Lippert, AL-KO, and compatible 5,200–7,000 lb trailer axles
• Kit includes:
 – 1 x 15123 Bearing (Outer, 1.25" ID)
 – 1 x 15245 Cup (Outer Race)
 – 1 x 25580 Bearing (Inner, 1.75" ID)
 – 1 x 25520 Cup (Inner Race)
 – 1 x 2.25” ID x 3.374” OD x 0.312” Wide Grease Seal (National 473336 equivalent)
 – 1 x 2.125” ID x 3.374” OD x 0.312” Wide Grease Seal
 – 1 x 2.448” Standard Dust Cap
 – 1 x Cotter Pin
• Designed for medium-duty axles with 12"x2" hub/drum assemblies
• Fits spindle type #42 used in 5.2K–7K lb axles with 6 on 5.5" bolt circle
• Seal dimensions optimized for durability and leak prevention

Applications: Is this kit the right match for your trailer axle✔ Yes—purpose-built for Dexter, Lippert, and AL-KO 5,200–7,000 lb axles on utility trailers, RVs, boat trailers, and car haulers. Perfect fit for 12"x2" hubs/drums with 6x5.5" bolt patterns (FP08-201-90 compatibility).

CROSS-REFERENCE(S):

A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.

IMPORTANT INSTALLATION NOTES:
✔ Clean spindle and hub thoroughly before installation
✔ Lubricate bearings with high-temperature wheel bearing grease
✔ Seat bearings and cups fully for proper fit and performance
✔ Torque spindle nut to ~50 ft-lbs while rotating, then back off and hand-tighten to set proper end play
✔ Press grease seals evenly to avoid leaks or distortion
✔ Inspect spindle and hub for wear or damage before assembly
✔ Use cotter pin to secure spindle nut
✔ Perform regular inspections to monitor bearing wear and seal integrity

WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?