Service Department | Bismarck ND
Award-WinningMarine Service
A full-time, marine-only service department trusted by boaters across North Dakota and South Dakota for maintenance, diagnostics, repairs, and upgrades.
Why River City Service
The Most Educated Marine Service Team in ND and SD
Our service department works on boats, period. River City Sports is a 12-time consecutive winner of the Mercury Customer Satisfaction Index Award, a distinction that reflects quality workmanship, clear communication, and exceptional customer care.
- Year-round factory training
- Annual manufacturer certifications
- Advanced marine diagnostics
- Factory-approved repair procedures
- Marine rigging and accessory work
- Every boat we sell water tested twice
Consecutive Mercury CSI Awards
Yamaha Master Certified Technicians
Years of Warranty Expertise
Engine Brands Certified for Service
Our Services
Everything Your Boat Needs Under One Roof
From the first 20 hours to the last day of the season, our certified technicians keep your boat running the way the manufacturer intended.
Winterization
Fuel stabilization, engine fogging, cooling system flushing, and ballast and plumbing protection built for North Dakota freeze cycles.
Learn MoreShrink Wrapping
Marine-grade shrink wrap seals out snow, ice, moisture, and UV damage until it is time to launch again.
Learn MoreOutdoor Storage
Secure, monitored outdoor space with easy access for boats, pontoons, trailers, and larger watercraft.
Learn More20-Hour Services
The break-in inspection that protects new engine performance, catches early wear, and keeps warranty coverage in place.
Learn MoreMarine Oil and Filter Change
Manufacturer-specified oils and approved filters that keep your engine cool, clean, and protected all season.
Learn MoreWater Pump Service
Impeller inspection and replacement on manufacturer intervals to prevent overheating and costly engine damage.
Learn MoreBattery Replacement
Battery testing, correct type and capacity selection, secure mounting, and clean connections for dependable power.
Learn MoreEngine Repower
Repowers matched to your hull design, weight, transom rating, and the way you actually use your boat.
Learn MoreAccessory Installation
Trolling motors, depth finders, GPS, stereos, lighting, towers, and ballast upgrades installed clean and secure.
Learn MoreInsurance and Warranty Repair
Estimates, documentation, and adjuster communication handled for you, with repairs completed to factory standards.
Learn MoreOutdrive Service and Repair
Gears, bearings, seals, bellows, U-joints, gimbal bearings, and alignment inspected and serviced by certified technicians.
Learn MoreFiberglass and Aluminum Repair
Hull, gelcoat, transom, and aluminum welding by the team behind the Gibbons Fiberglass reputation.
Learn MoreFactory Certified
Certified by the Brands You Trust
Our technicians complete ongoing factory training and annual certifications with all major motor manufacturers, so every repair meets or exceeds manufacturer specifications.
Certified Mercury Marine outboard dealer and 12-time consecutive CSI Award winner.
Certified MerCruiser service center and parts dealer for sterndrive and inboard power.
Certified Yamaha outboard dealer with three Yamaha Master Certified Technicians on staff.
Certified marine engine and drive service center and parts dealer.
Warranty Service
Warranty Work That Does Not Make You Wait
Other shops quote two, four, or even six weeks. Notify us by Monday and in most cases you are back on the water by Friday.
Schedule Service
Book Your Next Service Visit
Tell us about your boat and what it needs. Our service team will reach out to confirm your appointment.
- Call(701) 223-9003
- Visit3751 E Rosser Ave, Bismarck, ND 58501
- HoursMonday to Friday 8:00 AM to 6:00 PM
Saturday 9:00 AM to 4:00 PM
Service FAQ
Frequently Asked Questions
Answers to the questions we hear most from boat owners.Do not see yours? Our service team is happy to help.
Call Our Service TeamWhat types of boats and engines do you service?
Our service department is marine only. We service boats and outboards from the brands we carry, including Mercury, MerCruiser, Yamaha, and Volvo Penta engines along with Malibu, Axis, and Crestliner boats. We do not service powersports, ATVs, or side by sides.
How quickly is warranty work completed?
Notify us by Monday and in most cases you are back on the water by Friday. Our dedicated warranty technician brings more than 35 years of experience to every claim.
Why does my new boat need a 20-hour service?
The first 20 hours are your engine break-in period. The 20-hour check verifies proper wear patterns, removes early contaminants, checks fluid levels and calibration, and helps protect your engine warranty coverage.
When should I winterize my boat?
Plan to winterize before the first hard freeze. North Dakota winters are tough on fuel systems, cooling systems, ballast, and plumbing, so scheduling early keeps your boat protected and helps you avoid the fall rush.
Should I shrink wrap my boat if I store it outdoors?
Yes. If your boat will be stored outdoors over the winter, we strongly recommend shrink wrapping. It keeps snow and ice off the deck and protects upholstery, electronics, and finishes from moisture and UV damage.
Do you work with insurance companies?
Yes. We provide damage assessments and written estimates, document the affected areas, communicate with your adjuster, and coordinate approval so the repair process stays simple for you.
How often should my water pump impeller be replaced?
Follow the interval recommended by your engine manufacturer. Impellers can dry out, crack, or lose flexibility even when a boat is not used often, so scheduled replacement is the best way to prevent overheating.
Is repowering worth it for an older boat?
Repowering can restore performance, reliability, and value without replacing a boat you already love. We evaluate your hull, weight, transom rating, and how you use your boat before recommending the right outboard.
How do I schedule service?
Call us at (701) 223-9003, email sales@rivercityboats.com, or send a request using the form on this page and our team will follow up to get you on the schedule.