Walkthrough of 2024 Newmar London Aire 4551

2024 Newmar London Aire 4551: An Overview

The 2024 Newmar London Aire 4551 introduces a range of updates that enhance its functionality and modern aesthetic. This 44' 10'' coach is built on a Spartan K3 chassis, powered by a 650 HP Cummins Turbo Diesel engine paired with an Allison 6-Speed Automatic transmission. Key updates for this model year span from interior finishes to advanced power systems.

Advanced Power & Climate Control

For 2024, the London Aire offers increased Lithionics battery capacity, coupled with a dedicated Victron inverter that can power the air conditioning while boondocking for a day or two. This system provides significant off-grid capability without relying on shore power or a generator for climate control.

Rear Bathroom & Egress Door

The rear bathroom features a 50x34-inch shower, updated with new black trim, dark faucets, and a dark surround. New tile work and flooring with a linear drain are also present. The AquaView shower system with AquaMiser conserves water by recirculating it back to the 105-gallon fresh tank, a practical feature for extended boondocking. An egress door is located at the back of the coach for safety.

Sophisticated Vanity & Storage

The master bath includes a vessel sink with a matching backsplash and dark faucets. The mirror offers inlay lighting in addition to overhead vanity lights. Outlets are conveniently placed within the medicine cabinet. Throughout the bathroom, you'll find extensive cabinet storage, including dual hanging racks and a large bank for shoes in the main closet. Drawers are full-extension, dovetailed, soft-close, made from hard maple, and finished with a high gloss.

Master Bedroom

The bedroom’s decor includes new pattern Lambricans and a detailed headboard design that adds depth. Two outlets above the bed and a touchpad provide easy control for lighting. A JBL sound system has been updated for improved audio quality. The decorative ceiling covers are functional, allowing easy access for servicing AC filters.

Concealed TV & Enhanced Storage

A notable feature is the hidden 43-inch Samsung Smart TV, which conceals an adjustable storage cabinet behind it, offering a secure spot for valuables. The coach is also pre-wired for Starlink connectivity. The bedroom offers "pocket drawers" for small items like jewelry and watches, alongside two large lower drawers and an overhead compartment suitable for a DVD player or satellite receiver. Opening windows allow for fresh air.

Centralized Controls

A central control panel in the rear of the coach allows simultaneous operation of all bedroom day shades. Newmar also offers an integrated app control system for cell phone connectivity (introduced in 2023) for most coach functions, excluding slide operation for safety.

Dinette & Galley

The U-shaped dinette comfortably seats six and features a magnetic support leg for the table leaf. Under-bench storage is generous, suitable for bulky items. A dedicated storage area for pots, pans, and baking dishes was introduced in 2023. The galley is equipped with push-to-release, full-extension pantry cabinets, providing significant storage for extended trips. The 19.7 cubic foot Whirlpool refrigerator includes a meat/cheese tray and a removable Prosecco shelf.

Living Area

The living area features abundant overhead cabinet storage, distinguishing it from higher-end models that often minimize cabinetry for larger window views. A 50-inch 4K Smart TV provides entertainment, with cellular and satellite-based Wi-Fi connectivity. Both the main and passenger-side couches offer USB ports and 110 outlets. The jackknife sofa can serve as a flexible space, although it may be tight for adult sleepers.

Kitchen Features

The kitchen countertop features a dynamic pattern with subtle sparkle. It includes a removable induction cooktop and a 1.7 cubic foot Whirlpool convection microwave oven with air frying capabilities. The deep sink is fitted with a dark faucet head that includes a spray/pour function, complementing the subway tile backsplash.

Interior Battery Reset

A new blue button on the interior provides an accessible reset for the Lithionics batteries, eliminating the need to go to an exterior bay if batteries are depleted below a safe threshold.

Slide Operation

When slides are retracted, the full wall slide rises slightly to clear decorative ceiling mounts. The passenger-side bedroom and smaller electric slides can be retracted independently, allowing full access to the rear bathroom, pantry, refrigerator, and dinette without fully deploying the coach, which is convenient for short stops.

Cockpit & Driving Experience

The 2023 updated Spartan chassis features a clearer digital dash. The integrated camera system provides rear, front, side, and a 360-degree overhead view, accessible while driving with the navigation system. The navigation system measures coach dimensions and weight for route planning and includes three years of complimentary traffic alerts. A wireless charging dock is located below the parking brake.

Driver Assistance & Comfort

Blind spot alert indicators (orange triangles) on the mirrors turn red if an object is in the blind spot. The windshield wipers are tucked low for an unobstructed view. A Mobileye system offers lane departure warnings, with seat vibrations if the coach drifts. Newmar's signature Comfort Drive steering system is standard, actively counteracting crosswinds and maintaining a straight trajectory with minimal driver effort. The coach offers both air leveling for quick stops and HWH hydraulic leveling. An optional Curt Spectrum brake controller is installed, and the coach has a 20,000-pound towing capacity, complete with an integrated Blue Ox system and a "heavy haul tow" feature.

Exterior Bays & Utilities

Exterior bays offer access for manual inflation of the airbags. The 15-gallon DEF tank is easily accessible, with a small compartment for gloves. A Sanicon macerator system is included, with an attachment for a traditional gravity hose if preferred. The coach features a whole house water filter, a gray tank rinse (added in 2022), and a black tank rinse. Power water and power cord reels simplify setup and breakdown. An outdoor shower provides hot and cold water. A new feature for 2024 is the ability to start the 12.5 kilowatt generator from the water bay. Bay doors are hinged to open upwards, preventing conflict with slides when deployed. Cargo trays extend 60% for easy loading and unloading, even with slides out. The factory-installed Lithionics battery system includes a second inverter dedicated to running the AC while traveling.

Bottom Line

The 2024 Newmar London Aire 4551 stands out for its blend of practical updates, modern interior design, and enhanced power capabilities. The ability to run AC off a dedicated inverter while boondocking, the integrated interior battery reset, and the comprehensive Spartan chassis upgrades—including Comfort Drive and advanced camera systems—are significant differentiators. These features, combined with thoughtful storage solutions and flexible living configurations even with slides in, position the London Aire as a highly capable and comfortable coach for active RVers.