ARK Winch Post Cap – Blue Plastic Cover for 50mm x 50mm Trailer Winch Posts (SKU: WPC50)

ARK Winch Post Cap – Blue Plastic Cover for 50mm x 50mm Trailer Winch Posts (SKU: WPC50)

The ARK WPC50 is the smallest post cap in the ARK winch post protector family—designed to snugly fit 50mm x 50mm steel trailer posts. It keeps moisture, dirt, and debris out of the tube while also covering sharp edges and creating a clean, finished look.

Protection for the Little Guys:

Ideal for lightweight trailers or compact setups, this cap gives your trailer a polished and functional finishing touch. Made from durable blue plastic, it resists cracking under harsh Aussie weather and won’t fade in the sun.

Key Features:

• Designed for 50mm x 50mm trailer winch posts
• Blocks out dirt, water, insects, and corrosion risks
• Eliminates sharp edges – safer for hands and gear
• UV-stabilised blue plastic construction
• Easy push-on fit – no tools required
• Matches other ARK trailer accessories

Small post, big protection—cap it right with ARK WPC50.

ARK Winch Family Series – Product Overview

Frequently Asked Questions

Q: What size trailer post does this fit?

A: It’s made to fit 50mm x 50mm steel winch posts.

Q: Will it stay on during bumpy travel?

A: Yes, it fits snugly and won’t fall off during normal towing conditions.

Q: Can it prevent rust?

A: Definitely. By sealing off the post, it helps block out water and prevent internal corrosion.

Q: Is it UV and salt-resistant?

A: Yes, it’s made for Australian conditions—tough against sun, rain, and road grime.

Q: Is this part of a set?

A: It’s the smallest in ARK’s post cap range. See WPC75 and WPC100 for medium and large sizes.