What Center Cap Fits the Castle Rock ST235/80R16 with Black Eagle Aluminum Wheel?

Updated 08/04/2026 | Published 07/29/2026

Products Featured in This Question

Replacement Center Cap for 15" or 16" Aluminum Viking Series Wheels - Gloss Black

(447)

$39.23

Castle Rock ST235/80R16 Trailer Tire with Black Eagle Aluminum Wheel - 8 on 6-1/2

(1)

$296.77

Replacement Center Cap for 16" Aluminum Viking Series Wheels - Gloss Black

(447)

$37.25

Question:

I purchased the Castle Rock ST235/80R16 Trailer Tire with Black Eagle Aluminum Wheel - Part CR79ZR. The wheels arrived without the center caps. Before ordering, could you please confirm the correct replacement center cap part number? I need 4 gloss black center caps for these wheels.

asked by: WILSON O

Expert Reply:

Hello Wilson,

Thanks for writing in!

Great choice on the Castle Rock ST235/80R16 Trailer Tire with Black Eagle Aluminum Wheel # CR79ZR. Those black wheels really give a trailer a sharp, clean look.

Since the wheel included with # CR79ZR has a 4.9" pilot hole, the correct replacement center cap is the Replacement Center Cap for 16" Aluminum Viking Series Wheels, Gloss Black # CXF105B. The # CXF104B is designed for wheels with a smaller pilot hole, so it will not fit your wheels correctly.

If you're replacing all four center caps, you'll just want to order four of the # CXF105B and you'll be all set.

What kind of trailer did you spruce up with those new Black Eagle wheels? I bet it's looking pretty sharp!