Replacement Fresh Water Fill Cap for 2013 Keystone Montana Hickory 3800RE
Updated 12/08/2025 | Published 11/13/2025
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Question:
I need to replace the fill cap for a fresh water holding tank on a 2013 Montana 3800re. The fill cap goes on an opening behind a small door about 6 inches square The door is located on the drivers side of the trailer near the back corner of the trailer, behind the rear slide out. Do you have the right fill cap?
asked by: Kurt N
Expert Reply:
Hi Kurt, welcome back! The answer to your question depends on the exact style you have. If it is a screw on cap for a gravity fill inlet you may be able to use the Valterra # A0120SVP. We also have a press-on replacement from B&B # BM84ZR or if this is for a city water inlet # 372422-PW-A. If you have something else entirely let me know in the comments below and I'll see what I can find.
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Product Page this Question was Asked From
Replacement Cap and Strap for Valterra RV Gravity Fill Water Inlet
- Accessories and Parts
- RV Water Inlets
- Inlet Cap
- Gravity Fill Inlet
- White
- Valterra
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Robin H.
12/8/2025
Hey Kurt, did one of those replacement fill caps end up matching the opening on your Montana’s fresh water tank? Knowing which one fit best could help others trying to replace the same style cap.