🔧 Bulldog 500180 — Genuine Topwind Crank Handle Assembly for 150, 160 & 170 Series Jacks

Don't let a broken or worn crank handle sideline your trailer. The Bulldog 500180 is a genuine OEM replacement topwind crank assembly designed specifically for Bulldog and Hammerblow 150, 160, and 170 Series top wind round jacks rated from 750 to 5,000 lbs. Features the iconic red Bulldog knob and a 6-3/4" radius arm for smooth, ergonomic operation. Clamp-on installation means no tools beyond a wrench — swap it out in minutes and get back on the road.

⚙️ Key Features

• Genuine Bulldog OEM Part — Maintains original jack performance and integrity; manufactured by the most trusted name in the trailer jack industry
• 6-3/4" Crank Radius — Measured center-to-center; provides plenty of leverage for fast, easy raising and lowering
• Iconic Red Bulldog Knob Included — Ergonomic grip comfortable even with work gloves; knob included in assembly
• Clamp-On Installation — Nut-and-bolt clamp secures to the jack shaft; no drilling or special tools required
• Folds Flat for Storage — Handle folds against the jack when not in use; stays out of the way while towing
• Steel Construction — Built to handle repeated use in tough outdoor conditions
• 3-Year Limited Warranty — Backed by Horizon Global / Bulldog
• Made in Mexico — Genuine Bulldog factory part

📐 Specifications

• Brand: Bulldog / Horizon Global
• MPN: 500180
• Also Known As: BD500180, 18917, 701364
• Crank Radius: 6-3/4" (center of knob to center of attachment point)
• Jack Capacity Range: 750 – 5,000 lbs
• Clamp Bolt Size: 7/16"
• Knob Color: Red
• Warranty: 3-Year Limited
• Country of Origin: Mexico

✅ Compatible Jack Series

• Bulldog / Hammerblow 150 Series — Topwind round jacks, 750–2,000 lb capacity
• Bulldog / Hammerblow 160 Series — Topwind round jacks, 2,000–3,500 lb capacity
• Bulldog / Hammerblow 170 Series — Topwind round jacks, up to 5,000 lb capacity
• Fits all Bulldog round topwind jacks rated 750–5,000 lbs with standard clamp attachment

🔁 Cross-Reference Part Numbers

• Bulldog 500180 | BD500180 | 18917 | 701364
• UPC: 086693001807
• Replaces worn or broken OEM crank handles on Bulldog 150, 160, 170 Series topwind jacks

🔧 Installation Notes

• Slide crank assembly onto the jack's top wind shaft and tighten the 7/16" clamp bolt to secure
• No drilling required — direct OEM fit on all compatible 150/160/170 Series jacks
• If your jack shaft is worn or bent, inspect and replace the full jack before installing new handle

📞 Questions? Call or text us: 517-225-1991 | AAATrailer.com — Howell, MI · Same-day shipping on most in-stock orders · Largest online selection of trailer parts in Michigan

What sets us apart is our dedicated team of knowledgeable professionals who are always ready to assist. Great customer service isn't just a promise—it's the foundation of our success. We invite you to visit our showroom or reach out for personalized advice. Whether you're purchasing online or stopping by, we're here to make your trailer journey seamless. Visit Us Today

• 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

Thank you for considering AAA Trailer. We're excited to help you hit the road with confidence! If you have any questions, don't hesitate to contact us.

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 We will be happy to assist you with eligible returns, the return instructions, and the shipping address. If you need a return or exchange, send us an email so we can discuss a replacement.