The Ram ProMaster is the full-size cargo van built for businesses that need maximum interior volume, easy loading, and a front-wheel-drive chassis that keeps the floor low and the load capacity high. Used by contractors, delivery services, plumbers, electricians, and small business owners throughout Nassau County, the ProMaster earns its place in commercial fleets through its segment-leading interior height (up to 74 inches standing room with the high roof), wide sliding cargo door, and practical workhorse engineering. This guide covers every ProMaster configuration — cargo van, window van, City compact, and chassis cab — and helps Nassau County businesses determine the right wheelbase, roof height, and powertrain for their specific use case.
Bottom Line: The Ram ProMaster is the commercial van with the most interior height in its class, front-wheel drive for a low floor and better fuel economy, and the most configuration options for Nassau County contractors and delivery operators.
- Front-wheel drive for a lower load floor and better fuel economy than rear-wheel-drive competitors
- Up to 74 inches of standing interior height (high-roof variants) — more than any direct competitor
- Available in 136-inch and 159-inch wheelbases; standard, extended, and high-roof options
- 3.6L Pentastar V6 standard; ProMaster EV available for urban delivery fleets
What’s in This Guide
- ProMaster Overview
- ProMaster Configurations: Cargo, Window, City, Chassis Cab
- Roof Height and Wheelbase: Choosing the Right Size
- Powertrain: 3.6L V6 and ProMaster EV
- ProMaster vs. Ford Transit vs. Mercedes Sprinter
- ProMaster for Nassau County Contractors
- ProMaster for Delivery Operations
- Total Cost of Ownership
- Why Buy at Westbury Jeep RAM
- FAQ
ProMaster Overview
Ram introduced the ProMaster as a complete alternative to the rear-wheel-drive commercial van segment, using a front-wheel-drive architecture derived from the Fiat Ducato. The front-wheel-drive choice was deliberate: it allowed Ram to lower the floor significantly compared to a rear-wheel-drive layout (no driveshaft tunnel running through the cabin), maximizing usable cargo volume within the same external dimensions. It also shifts weight forward, improving traction on slippery surfaces common in Nassau County winters.
The ProMaster’s interior measurements stand out in the full-size van segment. The high-roof variants offer 74.1 inches of standing room — taller than a six-foot person can stand inside a van wearing work boots. The cargo area is 261 inches wide at the floor, providing a flat, usable surface for shelving, equipment racks, and floor-loaded cargo. The 60-inch wide cargo door (one of the widest in the segment) simplifies loading large equipment.
For Nassau County businesses, the ProMaster’s combination of interior volume, low floor, and available commercial upfit packages through Stellantis’s fleet division makes it a primary choice for HVAC contractors, plumbers, electricians, and delivery operations throughout Nassau and Suffolk County.
ProMaster Configurations
Cargo Van — the most common ProMaster, available in four body configurations: 136-inch standard roof, 136-inch high roof, 159-inch standard roof, and 159-inch high roof. Cargo capacity ranges from 259 to 463 cubic feet depending on configuration. This is the choice for the vast majority of commercial operators.
Window Van — the same body as the cargo van but with side and rear windows throughout, suitable for passenger transport, shuttle operations, and mobile service businesses where passengers ride in the cargo area. Seating configurations support up to 15 passengers.
ProMaster City — a compact version of the ProMaster that’s actually a separate, smaller vehicle approximately 14 inches shorter than the standard cargo van. Better suited to dense urban environments and narrower Nassau County streets where the full-size ProMaster is difficult to maneuver. Less cargo volume but significantly more maneuverable.
Chassis Cab — the ProMaster front end and cab with a bare frame rear for custom body installations (refrigerated bodies, service bodies, utility beds). The choice for businesses needing specialized rear configurations.
Roof Height and Wheelbase: Choosing the Right Size
The roof height decision is the most important configuration choice for most businesses. Standard roof (LR) provides approximately 54 inches of interior height — enough to work seated but not to stand. High roof (HR) provides 74 inches — full standing room for anyone under 6’2”. The vast majority of tradespeople who work inside the van daily should choose high roof; the daily comfort and productivity advantage is significant.
Wheelbase determines cargo length. The 136-inch wheelbase provides 101 inches of cargo floor length. The 159-inch wheelbase extends the cargo floor to approximately 123 inches, accommodating longer materials — 10-foot electrical conduit, copper pipe, longer lumber — without strapping items to the roof. Nassau County contractors who regularly carry long materials should seriously evaluate the 159-inch variant.
The maneuverability tradeoff is real. The 159-inch high-roof ProMaster is a large vehicle to navigate through residential neighborhoods and tight commercial lots in Westbury, Hicksville, or Mineola. Test-drive both wheelbases in representative Nassau County conditions before deciding.
Powertrain: 3.6L V6 and ProMaster EV
The 3.6L Pentastar V6 with 6-speed automatic is the workhorse powertrain across the ProMaster lineup. At 276 hp and 250 lb-ft of torque, it provides adequate performance for fully loaded commercial use. Fuel economy is approximately 14 city / 19 highway — typical for a full-size van in commercial use. Regular maintenance of the fuel system and transmission is essential for high-mileage commercial applications.
The ProMaster EV is Ram’s fully electric cargo van, providing approximately 120 miles of range with a 75 kWh battery pack. For Nassau County delivery operations where routes are predictable and the van returns to a base for overnight charging, the ProMaster EV eliminates fuel costs entirely. The EV is not suitable for operations requiring extended range or rapid turnaround between charges.
ProMaster vs. Ford Transit vs. Mercedes Sprinter
The Ford Transit is the ProMaster’s primary domestic competitor. The Transit is available in rear-wheel drive, all-wheel drive, and a new all-electric E-Transit variant. The Transit’s AWD option gives it an advantage in severe winter conditions that the ProMaster’s FWD can’t match, but the ProMaster’s interior height advantage (74 inches vs. 71 inches in the Transit) and lower floor are meaningful for businesses that prioritize cargo volume and worker ergonomics.
The Mercedes-Benz Sprinter is the premium commercial van — higher price, more powertrain options (including diesel), and exceptional long-term durability with high-mileage commercial use. The Sprinter is the choice for businesses that operate at the highest utilization rates and can justify the premium acquisition cost through total-cost-of-ownership calculations.
For Nassau County businesses that need maximum interior volume at a competitive price point with established dealer service through Westbury Jeep, the ProMaster is the practical choice.
ProMaster for Nassau County Contractors
Nassau County contractors — HVAC, plumbing, electrical, general contracting — find the ProMaster’s combination of interior height, cargo width, and payload capacity (up to 3,820 lbs) well-matched to their needs. The 60-inch cargo door accommodates large equipment. The flat floor and 261-inch cargo width support standard commercial shelving and drawer systems from Adrian Steel, Ranger Design, and other fleet upfitters.
The high-roof 159-inch wheelbase is the ProMaster configuration most Nassau County trades contractors choose. The standing room eliminates the back strain of working hunched over in a low-roof van; the extended wheelbase accommodates 10-foot pipe and conduit without strapping to the roof rack; the flat floor works with standard shelving systems for organized tool and parts storage.
ProMaster for Delivery Operations
For Nassau County delivery businesses — local couriers, last-mile delivery contractors, food service — the ProMaster’s front-wheel-drive lowered floor simplifies loading and unloading. The 136-inch high-roof configuration is the most common delivery configuration, providing maximum cubic volume in the most maneuverable long-wheelbase package.
The ProMaster City is increasingly popular for urban Nassau County delivery routes where full-size van maneuvering is challenging — tighter parking, narrower streets in older communities, and residential neighborhoods where a full-size van draws attention and difficulty. The City’s compact dimensions and adequate cargo volume make it the right tool for light delivery applications.
Total Cost of Ownership
Commercial fleet purchasing decisions are total-cost-of-ownership calculations, and the ProMaster is competitive. The front-wheel-drive V6 powertrain has established maintenance records; Stellantis’s commercial fleet support provides extended warranty options and fleet pricing for multi-vehicle purchases. Westbury Jeep’s commercial fleet department handles fleet invoicing, multi-unit discounts, and upfitter coordination for businesses purchasing multiple ProMasters.
Fuel costs are significant in commercial use — a ProMaster averaging 14 mpg in delivery service at 25,000 annual miles burns approximately 1,785 gallons of fuel yearly. The ProMaster EV eliminates this cost for operations with appropriate charging infrastructure.
Why Buy at Westbury Jeep RAM
Westbury Jeep Chrysler Dodge Ram in Jericho handles both retail and commercial ProMaster sales, with fleet department support for businesses purchasing multiple units. The commercial team understands upfitter coordination, fleet financing, and the specific configuration decisions that matter for Nassau County trades businesses.
Contact Westbury Jeep’s commercial fleet department for fleet pricing, configuration guidance, and multi-unit purchasing support. Browse ProMaster inventory for available configurations.
"ProMaster buyers are usually business owners who've done the math. They're comparing interior cube, payload, and total cost. The high-roof 159-inch is almost always the answer for a working tradesperson — the standing room alone is worth it when you're in the van six hours a day."
General Manager, Westbury Jeep Chrysler Dodge Ram
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Fuel economy figures from EPA fuel economy estimates. Actual mileage varies with driving conditions.
Frequently Asked Questions
What is the maximum payload for the Ram ProMaster? Maximum payload is 3,820 lbs on appropriately configured ProMaster Cargo Van variants. Payload varies by configuration — high-roof extended wheelbase models have lower payload than their lower-roof shorter counterparts due to the heavier body structure. Confirm payload capacity for your specific configuration at time of purchase.
Does the ProMaster come in diesel? The standard ProMaster uses the 3.6L Pentastar V6 gasoline engine. The ProMaster EV uses an electric motor. Ram does not currently offer a diesel engine in the standard ProMaster for the U.S. market, unlike the international Fiat Ducato version on which it’s based. For diesel in a full-size van, the Mercedes-Benz Sprinter is the primary option.
How does FWD affect ProMaster performance in winter? Front-wheel drive places the drive wheels under the heavier front of the vehicle (engine weight), which actually improves traction compared to an unladen rear-wheel-drive van. The ProMaster’s FWD performs well in Nassau County winter conditions; a fully loaded van’s weight further improves rear traction. For severe conditions, winter tires on the drive axle are the most effective improvement.
What is the ProMaster City? The ProMaster City is a compact cargo van approximately 14 inches shorter than the standard ProMaster, based on a different platform. It offers approximately 131 cubic feet of cargo volume (vs. 259–463 for the full-size). The City is better suited to dense urban routes and tighter Nassau County locations where the full-size van is difficult to maneuver.
Can I get a ProMaster with a custom upfit through Westbury Jeep? Yes. Westbury Jeep’s commercial fleet department coordinates with established upfitters for shelving systems, partition installation, ladder racks, and specialized body configurations. Upfitter coordination is handled as part of the commercial vehicle purchase process.