Mariah R18

Q: What years was the Mariah R18 produced?

Our records show the Mariah R18 was available from 2011 through to 2012 — a production run of 2 model years. Use the year cards above to find the specific year you're researching.

Q: How long is the Mariah R18?

The Mariah R18 measures 18.33 feet in overall length. Always confirm against the specific year sheet, as dimensions can vary between model year revisions.

Q: How much does the Mariah R18 weigh?

The Mariah R18 has a documented dry weight of 33 lbs. Add your motor, fuel, and gear when calculating total towing weight.

Q: What is the maximum horsepower for the Mariah R18?

The Mariah R18 has a maximum engine rating of 225 hp (168 kW). Always fit an engine at or below the rated maximum to stay within the builder's safety specification.

Q: How many people can the Mariah R18 carry?

The Mariah R18 is rated for 8 passengers. As a practical guide, most experienced skippers aim for around 80% of rated capacity for a comfortable day on the water.

Q: What hull type does the Mariah R18 use?

The Mariah R18 features a aluminum modified vee hull. Deep-V and modified-V hulls cut through chop efficiently and are popular for fishing and general runabout use.

Q: What is the fuel capacity of the Mariah R18?

The Mariah R18 carries a 22-gallon fuel tank. Actual range depends on motor choice, load, and conditions.

Q: Who makes the Mariah R18?

The Mariah R18 is manufactured by Mariah. Browse the full Mariah spec catalogue to compare other models from the same range.

Mariah R18 — all spec sheets

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Model Overview

Mariah R18 Specifications

Length18.33 ft

Beam7 ft. 10 in. (2.3 m)

Weight33 lbs

Max HP225 hp (168 kW)

Fuel22 gal

Capacity8 people

Years Made2011–2012

HullModified Vee

MaterialAluminum

The Mariah R18 was built across 2 model years, from 2011 through to 2012 — a aluminum modified vee design with i/o propulsion.

Documented specifications include 18.33 ft in overall length, a dry weight of 33 lbs, a maximum engine rating of 225 hp (168 kW), capacity for 8 people and a 22-gallon fuel tank. Click any year card below to view the full spec sheet.

Specifications are consistent across all model years in our database.

Browse by year

2011 2012

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2011 vs 2012

Spec sheets — all years

Mariah R18 2012 Boat Specs

2012

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Mariah R18 2011 Boat Specs

2011

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Mariah R18 — Common Questions

What years was the Mariah R18 produced?

Our records show the Mariah R18 was available from 2011 through to 2012 — a production run of 2 model years. Use the year cards above to find the specific year you're researching.

How long is the Mariah R18?

The Mariah R18 measures 18.33 feet in overall length. Always confirm against the specific year sheet, as dimensions can vary between model year revisions.

How much does the Mariah R18 weigh?

The Mariah R18 has a documented dry weight of 33 lbs. Add your motor, fuel, and gear when calculating total towing weight.

What is the maximum horsepower for the Mariah R18?

The Mariah R18 has a maximum engine rating of 225 hp (168 kW). Always fit an engine at or below the rated maximum to stay within the builder's safety specification.

How many people can the Mariah R18 carry?

The Mariah R18 is rated for 8 passengers. As a practical guide, most experienced skippers aim for around 80% of rated capacity for a comfortable day on the water.

What hull type does the Mariah R18 use?

The Mariah R18 features a aluminum modified vee hull. Deep-V and modified-V hulls cut through chop efficiently and are popular for fishing and general runabout use.

What is the fuel capacity of the Mariah R18?

The Mariah R18 carries a 22-gallon fuel tank. Actual range depends on motor choice, load, and conditions.

Who makes the Mariah R18?

The Mariah R18 is manufactured by Mariah. Browse the full Mariah spec catalogue to compare other models from the same range.