1974 Mark Twain 18' Runabout I/O Boat in Oxford, AR 72565 US
18' Runabout I/O
1 Engine (--)
18 feet
Gas
Fiberglass/Reinforced
Stock # 185827
1974 Mark Twain 18' Runabout I/O 18' Antique/Classic Boat. Inboard/Outboard GM Inline 6 165HP Engine.
Overview
This 1974 Mark Twain 18' Runabout is a very well-kept classic fiberglass I/O that is in remarkably good cosmetic condition for its age. The boat presents exceptionally well and is a major standout compared with many vintage recreational boats of this era.
The boat has a clean, well-cared-for appearance, with very nice upholstery and no reported floor rot. This is not a typical neglected older boat-the overall cosmetic and structural condition is one of its strongest selling points.
Powered by a 165 HP MerCruiser sterndrive, this Mark Twain has also received significant recent mechanical attention, including extensive fuel and ignition system work.
Specifications
Year: 1974
Make: Mark Twain
Model: 18' Runabout I/O
Length: 18 feet
Boat Type: Fiberglass recreational runabout
Hull Material: Fiberglass
Engine: 165 HP MerCruiser
Engine Type: Gasoline Inboard/Outboard
Drive: Sterndrive
Trailer: Dual-axle trailer
Location: Arkansas
Recent Mechanical Work
Brand-new carburetor
Brand-new starter
Brand-new fuel pump
Fuel tank cleaned
New distributor cap and rotor
New points and ignition wires
New spark plugs
Electric choke installed
Recently recommissioned
The recent work to the fuel and ignition systems is a major benefit and represents significant maintenance already completed.
-Cosmetic & Structural Condition
The overall condition of this boat is one of its biggest selling points. For a 1974 model, it is in really good shape and presents very well.
Very clean, well-kept overall appearance
Upholstery is in very nice condition
No reported floor rot
Solid fiberglass construction
Far above average cosmetically for a boat of this age
-Known Items to Address
Power trim requires repair
Exhaust bellows need attention/replacement
-Main Selling Points
Exceptionally good cosmetic condition for a 1974 boat
Very clean, well-maintained appearance
Very nice upholstery
No reported floor rot
165 HP MerCruiser I/O
New carburetor, starter, and fuel pump
Refreshed ignition system
Cleaned fuel tank
Electric choke
Dual-axle trailer included
Closing Overview
This 1974 Mark Twain stands out because of its excellent overall condition for its age. The boat has been well cared for, is really clean and in good shape, and does not have the neglected appearance common among many vintage boats. With solid flooring, nice upholstery, significant recent mechanical work, and a dual-axle trailer, this is a strong classic runabout package. The power trim and exhaust bellows remain the primary known items needing attention.
1974 Mark Twain 18' Runabout I/O 18' Antique/Classic Boat. Inboard/Outboard GM Inline 6 165HP Engine.
Overview
This 1974 Mark Twain 18' Runabout is a very well-kept classic fiberglass I/O that is in remarkably good cosmetic condition for its age. The boat presents exceptionally well and is a major standout compared with many vintage recreational boats of this era.
The boat has a clean, well-cared-for appearance, with very nice upholstery and no reported floor rot. This is not a typical neglected older boat-the overall cosmetic and structural condition is one of its strongest selling points.
Powered by a 165 HP MerCruiser sterndrive, this Mark Twain has also received significant recent mechanical attention, including extensive fuel and ignition system work.
Specifications
Year: 1974
Make: Mark Twain
Model: 18' Runabout I/O
Length: 18 feet
Boat Type: Fiberglass recreational runabout
Hull Material: Fiberglass
Engine: 165 HP MerCruiser
Engine Type: Gasoline Inboard/Outboard
Drive: Sterndrive
Trailer: Dual-axle trailer
Location: Arkansas
Recent Mechanical Work
Brand-new carburetor
Brand-new starter
Brand-new fuel pump
Fuel tank cleaned
New distributor cap and rotor
New points and ignition wires
New spark plugs
Electric choke installed
Recently recommissioned
The recent work to the fuel and ignition systems is a major benefit and represents significant maintenance already completed.
-Cosmetic & Structural Condition
The overall condition of this boat is one of its biggest selling points. For a 1974 model, it is in really good shape and presents very well.
Very clean, well-kept overall appearance
Upholstery is in very nice condition
No reported floor rot
Solid fiberglass construction
Far above average cosmetically for a boat of this age
-Known Items to Address
Power trim requires repair
Exhaust bellows need attention/replacement
-Main Selling Points
Exceptionally good cosmetic condition for a 1974 boat
Very clean, well-maintained appearance
Very nice upholstery
No reported floor rot
165 HP MerCruiser I/O
New carburetor, starter, and fuel pump
Refreshed ignition system
Cleaned fuel tank
Electric choke
Dual-axle trailer included
Closing Overview
This 1974 Mark Twain stands out because of its excellent overall condition for its age. The boat has been well cared for, is really clean and in good shape, and does not have the neglected appearance common among many vintage boats. With solid flooring, nice upholstery, significant recent mechanical work, and a dual-axle trailer, this is a strong classic runabout package. The power trim and exhaust bellows remain the primary known items needing attention.
Nominal Length
18ft
Length Overall
18ft
Hull Material
fiberglass
Engine 1
Engine Model
GM
Total Power
165hp
Engine Type
inboard-outboard
Fuel Type
gasoline
Total Power
165.0 hp
Price History
| Date | Event | Price |
|---|---|---|
| 9/2/26 | Initial price | $4,495 |
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1974 Mark Twain 18' Runabout I/O | ||||||
|---|---|---|---|---|---|---|
| Price | $4,495 | Price on request | $10,820 | $16,995 | $26,995 | $27,500 |
| Location | Oxford | Jonesboro | Stuttgart | Jonesboro | Jonesboro | Jonesboro |
| Nominal Length | 18' | 16' | 20' | 12' | 19' | 19' |
| Total Engine Power | 165 hp | - | - | - | - | - |
| Days on Market | 1 | 4 | 89 | 298 | 837 | 837 |
| Get in touch |
Meet the Broker

Address
12110 Port Grace Blvd
La Vista, NE 68128
Boat Location
Contact National Vehicle LLC about 1974 Mark Twain 18' Runabout I/O
12110 Port Grace Blvd, La Vista, NE, 68128









