Four heavy-duty trailer axle u-bolts — 4" × 8-1/8" round, 5/8"-11 thread. Enough for a complete tandem axle or both sides of a single axle in the 9,000 lb capacity range. Nuts sold separately (see part 854-6038). Pre-bundled 4-pack for convenience.

🔧 What's Included

• (4) 4" × 8-1/8" round U-bolts, 5/8"-11 thread (part 854-1064) (nuts sold separately — see part 854-6038)

⚙️ Key Features

• Heat-treated raw steel — engineered for stretch and torque retention
• Rolled threads — stronger than cut threads, resist stripping under high torque
• OEM-spec dimensions — direct fit for major heavy-duty trailer axle brands
• Round bend profile — matches round axle tube

📐 Specifications

• Inside Width (axle clearance): 4"
• Length (leg depth): 8-1/8"
• Thread Size: 5/8"-11
• Shape: Round
• Material: Heat-treated carbon steel
• Fits Axle Tube: 4" diameter round
• Fits Axle Capacity: 9,000 lb

🔄 Cross-References

Interchangeable with the following manufacturer part numbers (OEM replacement):

• Dexter: 011-064-00
• Also Fits: 9K Dexter / Al-Ko / Hayes 4" tube axles

🛠 Compatible Axles

Heavy-duty trailer axles with 4" round tube profile in the 9,000 lb range:

• Dexter 9K / 10K GD / 10K HD / 12K / 15K sprung axles (as applicable)
• Lippert / LCI equivalent capacity axles
• TRP / TruRyde heavy-duty sprung axles
• Al-Ko, Hayes, Redline equivalent capacity axles
• Most OEM commercial / equipment / gooseneck / deckover trailer axles in this range

📦 Other Configurations

• 854-1064 — single U-bolt
• 854-1064-2PK — 2 U-bolts only
• 854-1064-KIT — 2 U-bolts + 4 locknuts
• 854-1064-4PK — 4 U-bolts only
• 854-1064-4PK-KIT — 4 U-bolts + 8 locknuts

💡 Pro Tip: U-bolts are one-use fasteners — always install new when replacing springs or doing suspension work. Torque to 85-100 ft·lbs in a criss-cross pattern, 2-3 passes. Re-torque after the first 50 miles and again at 500 miles.

Questions about heavy-duty axle hardware? Call or text AAA Trailer at 517-225-1991 — we stock u-bolts, nuts, tie plates, and axle hardware for trailers from 2,000 lb utility up through 15,000 lb commercial. Same-day shipping from Howell, Michigan.

📞 Call/Text: 517-225-1991   🌐 AAATrailer.com

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• Address: 4675 East Grand River Ave, Howell, MI 48843
• Phone: (517) 225-1991 (Call or text)
• Hours: Monday to Friday: 10:00 AM - 5:30 PM | Saturday: By appointment

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