O'Connor and sons marinelogodark

Reviews Rating: 4.9 – ‎26 reviews


Retired, the shop is now closed



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O’Connor & Sons Mobile Marine
ATVs, Boats,  Snowmobiles and Trailers
Parts & Repair tune-ups overhauls for All Makes .


Call for appointment #617-480-8920

oconnor and sons mobile marine, oconnor marine, o’connor marine,  massachusetts

Family Owned and Operated


Educated, trained and experienced. Over 34 years!


all Motorsports work



Ski Doo, polaris, arctic cat, and Yamaha,

Click link below


rotax-motor rev-motor

all chassis engine jobs

Ski Doo, polaris, arctic cat, and Yamaha,

KLOTZ injection lube on sale $45 gal

exceeds all warranty requirements, Ski Doo, Polaris, arctic cat, and Yamaha,

oconnor marine racing

Please Call for an Appointment:

454 done

454 cid 450 hp built by us MERCRUISER GM

All work guaranteed to be of the highest standards.

We do Not accept checks. Only CASH or Credit Card in person is fine. We can take a card over the phone if necessary.



Marine: Inboards, Outboards and Stern Drives Mercruiser, OMC, Volvo,  I/Os all of em’., .
We know how you feel when you want to get back on the water! All makes including BRP, Evinrude, Johnson, mercury, mariner, Honda, Tohatsu, Nissan, Yamaha, Suzuki, sport-jet, force, and sea dive, Parts & Repair tune ups overhauls


ATV, UTV, Dirt Bikes: ATV – All Terrain Vehicles, Quads and 3 Wheelers Service and Repair.
We know how it is If you need a part for your wheeled toy. We can most likely get it and fast!! (new and used)Parts & Repair tune ups overhauls

Honda, can am, Bombardier, BRP, Polaris, Yamaha, Suzuki, and Arctic cat.



Recreation Trailers: Full Repair of Boat, ATV and Snowmobile Trailers.

Our Services

Marine: Inboards, Outboards and Stern Drives or I/Os,

  • All Marine Service – Featuring Certified Instructor of Marine Service Technology
  • Insured and Registered Massachusetts
  • Pre-Season prep
  • Winterization (pre-storage service)
  • All Maintenance, Tuning
  • Trailer Maintenance and Repair
  • Jack plates, Nose Cones and more
  • All Makes, Mercury outboards, Mariner Outboard, Mercruiser, Volvo-Penta Stern drive, OMC Stern drive, Yamaha Outboard, Suzuki Outboard, OMC J/E Johnson & Evinrude Outboard, Honda Outboard,  Force, Tohatsu and Nissan Outboard Motors. BRP and Bombardier.
  • Boat repair service – MA Outboard Repair Service, MA Stern drive Repair Service,  MA Mobile Marine, MA Boat Repair Service, MA Boat Winterize, MA Winterization Storage Prep, winterize before NOVEMBER
    • This is the most comprehensive type of inspection, and is strongly advised when purchasing a new or used vessel.
    • Condition and the overall operation of the vessel should be examined.
    • This would include such items as structural integrity, out of water inspection, sea trials, electrical systems, propulsion system, fuel system, machinery, navigation, and misc. on board systems, cosmetic appearance, electronics, and overall maintenance. Book value


    • This inspection is performed so that the insurance company can determine whether or not the vessel is an acceptable risk.
    • They are interested in structural integrity and safety for its intended use.
    • Most insurance companies require a survey on older boats.
    • They will also want to know the vessel’s fair market value.


    • This inspection is performed to gather enough information to justify or determine the fair market value of the vessel.
    • This is normally needed for financing, estate settlements, donations, and legal cases.


    • This is performed to assess the extent of damage, recommend repairs, estimated repair cost, and if requested, the probable cause.


Marine Engine page for Rebuilding Rates





This is Your Pre Season snowmobile work list.

Pre season prep, compression tests, leak downs, bore scoping, top end jobs, crank bearings done, seals, re-plating cylinders, Carbs cleaned, old gas disposal, check all. Injector cleaning if needed. Clutch cleaned, plugs changed if needed.  Hyfax, sliders changed if needed. runners, skegs changed if needed.bulbs checked and changed. All fittings greased , gear oil and chain case changed when needed. 4 stroke oil and filter changes, track tension and alignment, ski alignment, suspension adjustment done per request. Traction studds checked and replaced where needed, Tracks, studding,  Seat covers, shocks, hand warmers, ride lights, sled trailer hitches, windshield… what ever you need done! We fix trailer hinges , lift pistons, tail and marker lights and wiring… painting, polishing, cleaning …sleds and trailers. also Tires wheels and hubs all done here.

Ski doo, Polaris, Yamaha,  Arctic cat  and Outboard and sterndrive  technicians in houseamtech

We offer Military a discount !

please mention this before we write the invoice if you qualify.

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 Repairing and New and Used Parts for all Snowmobiles, ATVs, UTVs,  Dirt bikes and Recreational Trailers !!



We can service Southern New Hampshire and The 495 belt above Waltham, Ma.
Please by appointment  Please Call 617-480-8920

PLEASE SEE OUR FOR SALE PAGE click on the tab above in the menu

We do Not accept checks. CASH or Credit Card in person is fine. If we take a card over the phone (no swipe) we have a 3% service charge on that amount. We get charged that and have to pass that onto the customer.

We have been repairing and selling new and used parts for all makes for over 33 years in Massachusetts !!!


Snowmobile: Repairs, pre-season, pre storage, any repairs for ALL Sleds !!! Skidoo, ski doo, Arctic cat, Polaris, and Yamaha. We do top end jobs and complete rebuilds. Woody’s traction products sold and installed. Klotz full synthetic injection lube, the best sold here.
Yes, we own a few sled’s too..We ride.  If you want your sled fixed right, call us!!



Snowmobile: Repairs and Performance Upgrades for ALL Sleds !!!

Arctic Cat, Polaris, Ski-Doo,  and Yamaha

Servicing all makes for over 25 years

We are a Woody’s Dealer: Woody’s Snowmobile Studs and
Runners Provide the Most Reliable Traction and Control!

– Sold and Installed –

Carbide Runners

  • All Snowmobile servicesMain Products
  • Pre-Season prep
  • Pre-Purchase Inspections
  • Summerization (pre-storage service)
  • All Maintenance
  • All Major and minor mechanical and cosmetic repairs
  • DETAILING pressure washing waxing
  • Insurance surveys
  • High Performance Set Ups – Clutch Kits, Track Studding, Trail Porting, etc…
  • Expert engine rebuilding with Full Warranty (Dealers Welcome!)
  • Discounted parts FAST for All Makes

Snowmobile Engine Rebuild Rates

ATV: ATV – All Terrain Vehicles, Quads and 3 Wheelers Service and Repair.

  • Pre Season
  • Pre Purchase Inspections
  • pre storage service
  • All Maintenance
  • All Major and minor mechanical and cosmetic repairs and plastics
  • Insurance surveys-damage estimates
  • High Performance Set Ups – K & N kits, Jets, Air, Big Gun Pipes, Cans, Wiseco big bore kits and more…
  • Expert engine rebuilding with Full Warranty (Dealers Welcome!)

 Recreation Trailers: Full Repair of Boat, ATV and Snowmobile Trailers.
Decks, Tires, Bearings, Electrical and Welding.
Full Repair of Boat, ATV and Snowmobile Trailers.
Having some toys of our own we’ve also worked on some trailers.
Does your Sled trailer need a new Deck!! We’ll replace. Need Bearings, Tires or lights?? We’ve got them and know how to install them properly so they’ll work for years to come!!
So you’re trailer’s a little busted? Weld Broken? Want to reinforce it?
Give us a call, we do welding too !!! 617-480-8920

All work guaranteed to be of the highest standards. If you ever have a problem just call!

We do Not accept checks. CASH or Credit Card – ONLY – Thank you

visa mc

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God bless America


1988 Formula 272 SR1 factory installed twin mercruiser racing 320 HP Multiport EFI engines.


Speedometer in the Middle 68 mph… not bad for not wot.



oconnor and sons marine, oconnor marine, o’connor marine, massachusetts

O’Connor and Sons recommends that a properly trained technician (us) service your motor. If you elect to do it yourself, be sure to use caution, common sense, and to observe all safety procedures in the vicinity of gasoline, moving engine parts, high temperature components, heavy items, and electrical or ignition systems.

The information offered here or over the phone is often only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications.  Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation or a technique, enlist our services as professionally trained technicians.