We are proud to be one of Northern California's leading marine repair facilities. Our commitment to quality service has earned us consistent high marks in customer satisfaction.

Porter's Precision Mobile is dedicated to keeping you on the water. We use our extensive marine propulsion experience to provide you with high quality service and quick turnaround. Since we stock the most popular parts and have fast access to the lake for wet-testing, we are able to get you back on the water quickly and safely.

And don't forget about your trailer! Porter's precision provides full trailer maintenance and repair as well. From surge brakes to electrical and hubs, we can ensure your boat is riding on a safe and dependable platform. Then, when the season is over, we can provide shrink-wrapping services which will keep your boat clean and dry for next season!

In addition, our full machine shop can provide custom fabrication for many marine items. 

You won't find a better level of service anywhere in the Sacramento area! 

Our recommended preventative maintenance services include:

  • Oil change, lube and filter
  • Tune-Up
  • Clean fuel injector / carburetor
  • Air filter inspection and replacement
  • Transmission inspection
  • Full Boat Inspection
  • Belt inspection and replacement
  • Trailer Repair and Maintenance
  • Shrink Wrapping

Our Marine Services

  • Brake Services
  • Engine rebuilds 
  • Drive's 
  • Electrical systems/Computer 
  • Steering
  • Custom Gearing
  • High-Performance modifications
  • Alternators, starters, and ignition 
  • Water pumps
  • Fuel pumps 

We are experienced in the following watercraft (plus many more)

  • Four-Winns
  • Cobalt
  • Bayliner
  • MasterCraft
  • Stingray
  • Moomba
  • Centurion
  • Crownline
  • Sea Ray
  • Chaparral
  • Baja
  • Rinker
  • Larson
  • Maxum
  • Monterey
  • CorrectCraft/Nautique
  • Tige
  • Malibu
  • Grady-White
  • Boston Whaler
  • Seaswirl

We are experienced in the following powerplants and Drives

  • Volvo-Penta
  • Ilmor
  • Mercruiser
  • Inmar
  • PCM
  • OMC 86 & up only
  • Marine Power


  • Yamaha
  • Sea-doo
  • Kawasaki.
  • Honda Aquatrax