Norcold 2117 / 2118 to N20DC 12V Fridge Size Guide

The Norcold N20DC 12-volt compressor refrigerator uses the same published height and width range as the Norcold 2117 and 2118 absorption refrigerators. Its required enclosure depth is 24 inches, while the older 2118-family opening can extend to 24.13 inches.

Very close cabinet dimensions do not make this a plug-and-play conversion. The N20DC needs a dedicated 12V supply, its own airflow path and secure mounting. The old LP-gas system and absorption-refrigerator vents require appropriate conversion work.
Norcold 2117 and 2118 cabinet opening compared with Norcold N20DC 12V refrigerator dimensions
Original UsedRVParts.ca illustration comparing the manufacturer-listed enclosure ranges.

2117 / 2118 and N20DC opening dimensions

Refrigerator family Required enclosure H × W × D Size assessment
Norcold 2117 / 2118 68.94–69.06 × 35.94–36.04 × 24.00–24.13 in. Original large absorption-refrigerator opening.
Norcold N20DC 68.94–69.06 × 35.94–36.04 × 24.00 in. Same published height and width; fixed 24-inch enclosure depth.

Why this is a strong size comparison

The old and new families share the same enclosure height and width ranges. A cabinet that still measures within those limits may not need major front-opening modifications.

Where conversion work remains

Any rear space beyond 24 inches needs to be managed so the N20DC is installed at its intended depth. Electrical supply, floor support, fastening, airflow and door clearance must all follow the compressor-refrigerator instructions.

Refrigerator product references

The first card is the 12V conversion candidate. The second is an original-family absorption refrigerator reference and is not a 12V compressor replacement.

Norcold Polar N20DCSS 19 cubic foot 12V compressor refrigerator

12V conversion candidate · 19 cu. ft.

Norcold Polar N20DCSS

Large French-door 12V compressor refrigerator with a bottom freezer drawer, electronic controls, adjustable storage and a 24-inch enclosure depth.

Cabinet opening:
68.94–69.06 in. H × 35.94–36.04 in. W × 24 in. D

Size reference: Matches the 2117/2118 published height and width ranges and uses the minimum listed original depth.

View N20DCSS details
Used Norcold 2118 propane and electric RV refrigerator reference photo

Original-family reference · absorption

Used Norcold 2118

This listing shows the older four-door propane/120V absorption refrigerator format. It is useful for visual and model reference when identifying an existing 2118 installation.

Published opening family:
68.94–69.06 in. H × 35.94–36.04 in. W × 24.00–24.13 in. D

Important: This is not a 12V compressor conversion model; check the listing for its current condition and availability.

View 2118 reference listing

Conversion checks before ordering

  • Verify the exact old model and suffix from its identification label.
  • Measure the empty enclosure at several points, including the usable rear depth.
  • Confirm the floor and surrounding framing can support a fully loaded large refrigerator.
  • Use a dedicated filtered 12V circuit with the fuse, conductor size and voltage-drop limits in the N20DC manual.
  • Measure the RV entry route and aisle as well as the final cabinet; a large refrigerator may fit the opening but not pass through the door.
  • Check French-door and freezer-drawer travel before installation.
  • Have the unused LP-gas connection safely disconnected and capped and address the old exterior vents according to the compressor-refrigerator instructions.
More refrigerator references

All 12V conversion guides · Browse 12V RV refrigerators · Dometic and Norcold size chart

Manufacturer references: Norcold 2117/2118 installation manual and Norcold N15DC/N20DC installation manual.

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