Looking For Replacement Center Cap Plug For AC-490 TT Caps On 2020 Montana 3120RL
Updated 10/23/2025 | Published 09/26/2025 >
Products Featured in This Question
Question:
I need a replacement use on center cap wheels for my 2020 Montana 3120 RL. Legacy. The cap I have left is labeled AC-490 TT and measures 2 7/8 inches diameter.
asked by: Doug E
Expert Reply:
Hello Doug, thanks for reaching out, and for providing those pictures. I have bad news and good news. The bad news is we do not offer a center cap plug that will fit your caps. The good news is the AC-490 TT center cap is a standard size, for a 4.9" pilot hole, and we do have a suitable replacement for the center cap. For that, I recommend the following:
- Lionshead Trailer Wheel Center Cap w/ Snap-In Plug - 4.88" to 4.9" Pilot - Stainless # LHCS109-SI60C
Product Page this Question was Asked From
Snap-In Plug for Lionshead Trailer Wheel Center Caps - Black
- Accessories and Parts
- Boat Trailer Wheels
- Trailer Tires and Wheels
- Wheel Trim
- Center Cap Plug
- Fits 1-15/16 Inch Holes
- Black
- Lionshead
more information >
Continue Researching
- Search Results: trim screws
- Search Results: stainless screws
- Search Results: accessories and parts
- Shop: etrailer Electric Trailer Jack w/ 7-Way and SnapPad - Drop Leg - A-Frame - 22-1/2" Lift - 5K
- Shop: ThinLine LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 15 Diodes - Clear Lens
- Shop: LED Identification Light Bar for Trailers over 80" Wide - Submersible - 3 Diodes - Clear Lens
- Video: etrailer Electric A-Frame Trailer Jack Detailed Breakdown
- Shop: TecNiq Slim Line Accent Surface Mount Light - 36" - Blue/White LEDs - Black Aluminum
- Video: The Low-Down on the ThinLine LED Trailer Tail Light
- Shop: Snap-In Plug for Lionshead Trailer Wheel Center Caps - Black
- Shop: Snap-In Plug for Lionshead Trailer Wheel Center Caps - Chrome
- Shop: Replacement Center Cap for Namsco Wheel Covers - Qty 1
- Search Results: road armor equalizer
- Search Results: lippert road armor
- Search Results: ac490tt
- Q&A: Hardware Kit for Use with Lippert Road Armor Equalizers
- Search Results: lug nut 9/16
- Q&A: Determining Wheel Cap or Cover Compatible with Pilot Hole Size on 8 Lug Wheel
- Q&A: Looking for Trailer Wheel Center Cap for Pilot Diameter of 3.19 Inch
- Q&A: Best Replacement for a Wesbar Tail Light 271594
- Q&A: What are the Cutout Dimensions for the Greystone Propane RV Range w/ Glass Cover GR49FR?
- Q&A: Where Are Kenda Trailer Tires Manufactured?
- Q&A: What Replacement Converter Do I Need for a Series 7300 Model 7345 Converter?
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Article: Trailer Wiring Diagrams
- Article: Double-Eye Trailer Suspension System Review
- Article: Dealer Spotlight - TrailQuip Plus LLC
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Article: Converting Your RV Water Heater to Tankless
- Article: Dealer Spotlight - Byerly RV





Jesse M.
10/22/2025
Hey Doug, how did the replacement Lionshead center cap work out on your Montana? Your results could really help others trying to match that AC-490 TT style.