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1987 Topaz 37 Cummins QSB 6.7 425hp

Newport Beach, California


1987 Topaz 37 Cummins QSB 6.7 425hp engines 

Twin Cummins QSB 6.7 425hp engines with ZF 304A gears with trolling valves installed new 06/2013


Cruise speed 24kts

Top speed 30kts

Furuno Tzt15 MFD

Furuno 1KW tilted element transducer

Furuno 600W tilted element transducer

Furuno 48nm NXT Radar

Simrad AP24 autopilot

Icom M504 VHF 

Xantrex 3000w inverter/charger

Kenwood stereo with cockpit and salon speakers

Precision outrigger

Ideal anchor windlass

Isotemp hot water heater with additional cockpit shower


Acr searchlight with remote

Full Tower controls with autopilot remote station

Forward and aft LED deck lights

LED underwater lights

Multiple 12V receptacles for electric reels or other accessories.

AGM Starting and house batteries new 9/21

Boat is prewired and plumbed for a generator 

Multiple tackle storage lockers

Offshore 115 gallon divided bait tank

Fresh and saltwater washdown

Basic Boat Info

Make: Topaz
Model: 37 Cummins QSB 6.7 425hp
Year: 1987
Condition: Used
Category: Power
Construction: Fiberglass
Boat Hull ID: TPP70153A787
Has Hull ID: Yes


Length: 37 ft
Length Overall: 37'5 ft
Beam: 14 ft
Min Draft: 5'8 ft

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: Cummins
  • Model: QSB 6.7
  • Fuel: Diesel
  • Engine Power: 425hp
  • Type: Inboard
  • Engine Location: Port
  • Drive Type: Stern
  • Year: 1987
Engine #2 Specs:
  • Make: Cummins
  • Model: QSB 6.7
  • Fuel: Diesel
  • Engine Power: 425hp
  • Type: Inboard
  • Engine Location: Starboard
  • Drive Type: Stern
  • Year: 1987
Total Engine Power: 850hp
Cruising Speed: 24 kn
Maximum Speed: 30 kn


Heads Count: 1
Drive Type: Stern
Boat Class: Sports Fishing Boats, Saltwater Fishing, Express Cruiser


Don Orr
Yorath Yachts


Yorath Yachts
16601 CA-1
Sunset Beach, CA, US, 90742


The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Additional Contact Information
Contact Don directly at 714 270-4135
or by email at