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7819 State Hwy 47, Union, MO 63084. Confirm by phone before driving over.
RV repair shop: you bring the RV · Union, Missouri

3R RV Service Center

Call (636) 583-2244 3rrv.com
Publishes ratesThis business prints its trip fee or hourly rate on its own website. We show the figure and the date we read it.What do these terms mean? Onan / Cummins generator serviceFactory training on Onan (Cummins) RV generators. Useful when the generator is the problem.What do these terms mean?Lippert qualified technicianTrained by Lippert on its slide-outs, leveling systems, axles and frames. Most travel trailers and fifth wheels use Lippert parts.What do these terms mean?Factory trained (other brands)The business names a manufacturer's own training or authorized-service program (Dometic, Spartan, Winegard, Truma, Oasis, Magnum and similar).What do these terms mean?
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3R RV Service Center is a rv repair shop: you bring the rv based in Union. The facts below are copied from its own site and its Google listing on the dates shown; a fuller write-up is on the way. Call and ask what the trip fee covers before agreeing to a visit.

Based inUnion, Missouri7819 State Hwy 47, Union, MO 63084
Service area“We service RVs from across Missouri and the Midwest.”3rrv.com
Trip fee and hourly rate$165 an hourRate card at 3rrv.com, read October 7, 2026. Rates change; confirm by phone.Listed as: “Labor @ $165/hr · Other prices: A/C unit inspection & tightening (verify gasket condition); Gasket replacement $130 per unit if needed” “- Per-unit prices: Generator Oil Service Gas $200 - Diesel $300; Premium Generator Service Gas $300 - Diesel $500; Absorption Refrigerator Service Price $165; Residential Refrigerator Check Price $82.50; Wheel Bearing Repack (Towable) Single $180 - Tandem $350 - Triple axle $750; Brake & Axle Inspection (Towable) Single $280 - Tandem $560 - Triple $840”
HoursWe're open: Monday - Friday 8am-6pm / Saturday 8am-12pm.3rrv.com
Works onAir conditioningRoofs and sealantsAwningsRefrigeratorsWater heatersGeneratorsSlide-outs and levelingElectrical, inverters and convertersPlumbing and water systemsFurnaces and heatingBatteries and solarPropane and gas systemsAppliancesInspectionsChassis, brakes and tiresListed at 3rrv.com. This is what they list, not a limit; ask about anything else.
Certifications
Newmar Factory Authorized Service & Repair; Certified Lippert Repair; Aqua Hot Repair & Service; Cummins Onan Certified with Flight Systems G-Man diagnostics; Zamp Solar Certified Installer; Lippert (LCI) Certified; slides, leveling, awnin3rrv.com, read October 7, 2026
Listed as“air conditioning; refrigerator; furnace; water heater; leveling; awning; roof; plumbing; electrical; generator; solar; inverter; propane; brakes; appliances; inspections”
Time in business“We have been in business since 2005.”
Google rating4.8 of 5, 293 reviewsGoogle Maps listing, read October 7, 2026