Fifth Wheel Service & Repair Jerome, Idaho
Fifth wheel service in Jerome, Idaho is one of those jobs drivers put off — until the handle won't pull, the jaws feel sloppy, or a tug test moves more than it should. The Semi Shop inspects, adjusts, rebuilds, and lubes fifth wheels at our Jerome shop, minutes off I-84 exit 168. Call (208) 696-9888.
What does fifth wheel service include?
A full inspection of the plate, jaws, locks, release handle, mounting bolts, and slider mechanism if you have one. We adjust the locking mechanism to spec, rebuild worn jaws and locks, replace broken release handles and springs, check the mounting to the frame, and finish with proper lubrication of the plate and locks.
We service fifth wheels on all the tractors running this corridor — Kenworth, Peterbilt, Freightliner, Western Star, Volvo, Mack, and International. We also look at the other half of the connection: the trailer kingpin and upper plate, because a worn kingpin will chew up a freshly adjusted fifth wheel.
How long does fifth wheel service take?
Inspection, adjustment, and lube is a quick visit — usually done while you wait. A jaw and lock rebuild takes a few hours depending on the model. Either way, we look first, quote the work, and the price we quote is the price you pay. With the shop open 7 AM to 10 PM every day, it's easy to fit between loads instead of losing a day.
How do I know my fifth wheel needs attention?
Listen for clunking from behind the cab on takeoff and braking — that's often play between the jaws and kingpin. Watch for a release handle that fights you, a high hitch that takes several tries, or visible movement at the kingpin during a tug test. Any of those means the mechanism is worn or out of adjustment. A fifth wheel with excessive slack is also the kind of defect an inspector will flag, and it's a fast fix compared to what a dropped trailer costs.
Dust, gravel, and Magic Valley grit
Trucks working dairies, feedlots, and beet yards around the Magic Valley drag dust and grit onto the fifth wheel plate every day, and dirty grease turns into grinding paste on the jaws and pivots. Winter is no kinder — road salt and ice work into the locks. A clean-and-relube on a regular schedule keeps hookups smooth and jaws tight through harvest season. Ask us to add fifth wheel service to your PM interval so it never gets skipped.
Driver questions
How often should a fifth wheel be lubed and inspected?
Follow your fifth wheel maker's schedule, and more often if you work gravel yards and farm lanes like most Magic Valley trucks do. A good rule here: have it checked at every PM. It takes minutes and catches wear early.
My trailer clunks when I take off. Is that the fifth wheel?
Very often, yes — play between the jaws and the kingpin. It can also be a worn kingpin on the trailer side. We check both halves of the connection and adjust or rebuild whichever one is actually worn.
Can a worn fifth wheel fail a DOT inspection?
Yes. Excessive slack, cracked plates, and loose mounting are all defects an inspector can write up. We check the fifth wheel as part of our annual DOT inspections, and we can fix what we find in the same visit.
Shop bays in Jerome or mobile to any I-84 exit, Bliss to Declo · 7 AM–10 PM every day · The price we quote is the price you pay.