Dometic RM1350 to N15DC 12V Fridge Size Guide

The Norcold N15DC is close to the Dometic RM1350 in cabinet height and width, but the standard RM1350 absorption-refrigerator enclosure is substantially deeper. This conversion can be practical when the opening is carefully measured and the unused rear space is managed according to the N15DC installation requirements.

This page covers the standard RM1350 enclosure. Dometic lists the RM1350SL with a different enclosure depth. Confirm the complete model suffix on the refrigerator label before comparing measurements.
Dometic RM1350 cabinet opening compared with Norcold N15DC 12V refrigerator dimensions
Original UsedRVParts.ca diagram showing the published enclosure measurements and the depth difference.

RM1350 and N15DC opening comparison

Refrigerator Required enclosure H × W × D Difference to plan for
Dometic RM1350 63 3/16 × 32 3/4 × 26 1/16 in. Existing absorption-refrigerator recess; deeper than the N15DC requirement.
Norcold N15DC 63.25–63.38 × 32.69–32.82 × 24 in. Needs at least 1/16 in. more height, similar width and about 2 1/16 in. less usable depth.

Height and width

The RM1350's 32 3/4-inch opening width falls within the N15DC range. The old height is 63 3/16 inches, while N15DC starts at 63 1/4 inches, so an opening built exactly to the old specification is 1/16 inch too short.

Rear depth and baffle

N15DC is designed around a 24-inch-deep enclosure. Norcold advises using a full-width, full-height solid rear box baffle to establish the 24-inch depth when an enclosure is deeper than 25 inches.

N15DC refrigerators to compare

These options share the same N15DC enclosure family. Product capacity does not remove the need to verify the cabinet, mounting points, door clearance and electrical system.

Norcold Polar Elite N15DCSS 15 cubic foot 12V refrigerator

12V compressor · no ice maker

Norcold Polar Elite N15DCSS

A 15-cu.-ft. French-door refrigerator with a bottom freezer drawer, independent temperature zones and dedicated 12V compressor cooling.

Cabinet opening:
63.25–63.38 in. H × 32.69–32.82 in. W × 24 in. D

RM1350 comparison: Similar front opening; requires a shallower finished enclosure and slightly more height.

View N15DCSS details
Norcold N15DCIMSS 15 cubic foot 12V refrigerator with ice maker

12V compressor · ice maker

Norcold N15DCIMSS

The ice-maker version uses the same refrigerator/freezer format and N15DC cabinet family while adding a cold-water connection at the rear.

Cabinet opening:
63.25–63.38 in. H × 32.69–32.82 in. W × 24 in. D

RM1350 comparison: Verify that the new rear baffle and water-line routing leave suitable service access.

View N15DCIMSS details

Installation planning checklist

  • Confirm whether the original refrigerator is RM1350 or RM1350SL; their published enclosure depths differ.
  • Measure the empty cabinet at the narrowest and shortest points and check that the floor remains solid and level.
  • Plan a finished 24-inch enclosure depth, including any full box baffle required behind the N15DC.
  • Provide an independent filtered 12V supply using the fuse and wire-size guidance in the N15DC manual.
  • Check French-door and freezer-drawer clearance in the RV aisle.
  • Have the old LP-gas connection safely disconnected and capped and modify the old absorption vents as required for the compressor refrigerator.
More refrigerator references

All 12V conversion guides · Browse 12V RV refrigerators · Dometic/Norcold cross-reference chart

Manufacturer references: Dometic DM/RM/DMA installation manual and Norcold N15DC/N20DC installation manual.

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