Dynamax Recall 26V603000: Fuel System, Diesel, Pre-heater
NHTSA recall 26V603000 · announced September 21, 2026 · filed by Forest River, Inc. · 16 units affected
The problem
Forest River, Inc (Forest River) is recalling certain 2026-2027 Dynamax Grand Sport GT recreational vehicles. The engine pre-heat pump may have been improperly installed, causing the coolant hose to fail.
The risk
A coolant hose failure can cause the engine to overheat, increasing the risk of a crash.
What to do
Dealers will re-pin the wiring harness, re-route the coolant hoses, and replace parts as necessary, free of charge. Owner notification letters were mailed October 20, 2026. Owners may contact Forest River customer service at 1-574-522-1583. Forest River's number for this recall is 40-2097.
Official NHTSA recall notice →
Vehicles covered by this recall
Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.