Dometic RM1350 to 12V Fridge: N15DC Replacement Size Guide

Replacing a Dometic RM1350 or RM1350SL four-door absorption refrigerator with 12V compressor cooling? The Norcold N15DC offers a similar cabinet-width class and more nominal storage, but the original refrigerator opening is not necessarily the exact opening required by the new appliance. Start with the depth difference and confirm the entire installation before ordering.

Size comparison, not a direct-fit claim. These measurements refer to installation recesses, not the dimensions over the doors. They are given in inches as height × width × depth. Different RM1350 variants need separate checks.

Dometic RM1350 vs 12V Norcold N15DC dimensions

Refrigerator Required cabinet opening (H × W × D) Installation comparison
Dometic RM1350 63-3/16 × 32-3/4 × 26-1/16 Deeper than the 24-inch N15DC enclosure. Reconfigure and finish the rear space as allowed by the new installation manual.
Dometic RM1350SL 63-3/16 × 32-3/4 × 24-1/16 Depth closer to N15DC, but opening height and fit details still need checking.
Norcold N15DC 63-1/4–63-3/8 × 32.69–32.82 × 24 N15DC's stated minimum height is slightly taller than the RM1350's nominal 63-3/16-inch opening. Confirm actual space before installation.

The opening-size difference is small in some directions but meaningful: a published near-match is not permission to force an appliance into an undersized opening. Recheck manufacturer instructions for your exact refrigerator and cabinet construction.

Visual size comparison: three things that matter

1. Height

The N15DC nominal minimum opening is 1/16 inch taller than the older RM1350 measurement. Take a fresh height measurement at the actual cabinet.

2. Rear depth

RM1350 has a 26-1/16-inch recess; RM1350SL specifies 24-1/16 inches. The N15DC requires 24 inches. The rear cavity and vent arrangement need their own review.

3. Doors & power

The N15DC uses French upper doors and a lower freezer drawer, unlike the original four-door absorption layout. Check door sweep, dedicated 12V supply, mounting and removal of gas utilities.

Compare complete 12V replacement refrigerators

Two N15DC configurations are currently listed on NewRVParts. The ice-maker version requires additional water-supply planning; do not assume an existing RM1350 water line fits it.

Why the 19-cu.-ft. N20DC is not a same-opening alternative

The larger Norcold N20DC family requires an opening of approximately 68.94–69.06 inches high × 35.94–36.04 inches wide × 24 inches deep. It requires substantially more height and width than an RM1350 enclosure. Review it only where cabinet reconstruction is possible. See Norcold N20DCSS specifications.

Before choosing a replacement

  1. Read the original refrigerator's full model suffix and serial number; RM1350 and RM1350SL do not use the same published recess depth.
  2. Measure clear height, width and usable depth of the actual cabinet at multiple locations.
  3. Confirm the replacement can be carried through the RV entrance and manoeuvred into the kitchen.
  4. Check the manufacturer's electrical circuit, mounting and ventilation requirements. Have gas service and unused propane connections handled by a qualified installer.
  5. Allow for front door/drawer opening, adjacent furniture, trim and secure attachment during travel.

For the measuring method see our RV refrigerator cabinet measuring guide. For additional sizes see the 12V refrigerator comparison chart. If you are repairing the original appliance instead, use the RM1350 illustrated parts reference after matching your full product number.

Manufacturer dimension references

Dometic DM, RM & DMA installation manual (RM1350/RM1350SL rough-in specifications); Norcold N15DC/N20DC installation manual. Figures refer to the identified model families only.

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