Verdict · NHTSA data
Limited data — recalls on file
NHTSA has just 0 complaints on file for the 1998 Spartan Mountain Master — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.
0
NHTSA complaints
2
Recalls
0
Investigations
0
Crash-involved
0
Fires reported
0
Injuries
0
Deaths
—
NCAP overall
2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.
Defect
VEHICLE DESCRIPTION: MOTOR HOMES. THE FUEL FILL VENT WAS NOT LONG ENOUGH WHEN INSTALLED INTO THE FUEL TANK TO ALLOW AIR TO PASS THROUGH THE VENT HOLES, CREATING A BACK SPLASH OF FUEL.
Consequence
FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE CAN RESULT IN FIRE.
Remedy
DEALERS WILL REPLACE THE PRESENT FUEL FILL VENT WITH A LONGER STEM ALLOWING THE PROPER AMOUNT OF AIR FLOW.
Defect
VEHICLE DESCRIPTION: CLASS A MOTOR HOME CHASSIS EQUIPPED WITH INDEPENDENT FRONT SUSPSION, WHICH UTILIZES A NORGREN VALVE AND NEWAY PILOT AIR CONTROL VALVES. THE PURPOSE OF THE NORGREN VALVE IS TO EXHAUST THE AIR SUSPENSION WHEN THE DRIVER ACTIVATES THE VEHICLE JACKS USED TO LEVEL THE VEHICLE FOR OVERNIGHT PARKING. THE NEWAY PILOT VALVE IS USED TO SPEED UP THE TIMING OF THE AIR EXHAUST. WHEN THE VEHICLE IS IN A DYNAMIC CONDITION, THE AIR SYSTEM PRESSURE CAN SEND SPIKES OF UP TO 230 PSI. THIS EXCEEDS THE PRESSURE RATING OF THE NEWAY PILOT VALVE CAUSING THE VALVE TO FAIL AND ALLOW THE AIR SYSTEM PRESSURE TO EXHAUST UNCONTROLLABILITY.
Consequence
IF THERE IS AN AIR SUSPENSION FAILURE, IT COULD LEAD TO VEHICLE HANDLING PROBLEMS AND A LOSS OF VEHICLE CONTROL.
Remedy
DEALERS WILL MODIFY THE AIR PLUMBING TO REMOVE THE THREE (3) NEWAY PILOT VALVES (TWO FRONT SUSPENSION/ONE REAR SUSPENSION) FROM THE AIR SYSTEM. THE NORGREN VALVE WILL BE FULLY UTILIZED TO REPLACE THE VALVES IN THE FRONT SUSPENSION AND A MIDLAND VALVE WILL BE USED IN THE REAR SUSPENSION.
The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.
Yes — NHTSA lists 2 recall campaigns affecting the 1998 Spartan Mountain Master. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.