The 2019 Heartland Mallard has 2 NHTSA recall campaigns affecting an estimated 22,948 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 11 complaints with NHTSA, most often about the wheels. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT21V4280002021-06-0422,326 affected
Defect
Heartland Recreational Vehicles, LLC. (Heartland) is recalling certain 2018-2021 Mallard, Shadow Cruiser, Sundance XLTTT, Wilderness, Prowler, Trail Runner, 2018-2019 Pioneer, Terry Classic, 2020-2021 Lithium, and 2021 North Trail trailers equipped with a Winntec model 6020 two-stage propane regulator. The regulator…
Consequence
Increased propane pressure can enlarge the flames in gas appliances, increasing the risk of a fire.
Remedy
Dealers will replace the regulator and test the propane system for leaks, free of charge. Owner notification letters were mailed August 3, 2021. Owners may contact Heartland customer service at 1-877-262-8032.
SUSPENSION18V6340002018-09-21622 affected
Defect
Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2019 Heartland Mallard, Pioneer, Sundance XLT, Wilderness, North Trail, Prowler and Trail Runner travel trailers. The axles may be missing inner bearing races on the hubs, which can cause the bearing to burnout or cause the hub to overheat.
Consequence
The missing bearing race may cause premature hub bearing failure, possibly resulting in a separation of the hub from the axle, thereby increasing the risk of a crash.
Remedy
Heartland will notify owners, and dealers will replace the defective hubs with new hubs or replace the axles, free of charge. The recall began October 9, 2018. Owners may contact Heartland customer service at 1-877-262-8032. Heartland's number for this recall is 99.01.40.
Complaints by component
WHEELS
3
1crashes
SERVICE BRAKES
2
UNKNOWN OR OTHER
2
ELECTRICAL SYSTEM
1
EQUIPMENT
1
1fires
EQUIPMENT:RECREATIONAL VEHICLE/TRAILER
1
STRUCTURE:BODY
1
Total complaints11
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“My mallard 25 manufactured by heartland was in the shop for another issue (black water tank). As they removed the under-belly, they noticed 4 cracks/fractures in the I-beam on both sides behind all 4 wheels. The cracks vary in length. They told me to contact heartland to see what can be done. I…”
“My mallard 25 manufactured by heartland was in the shop for another issue (black water tank). As they removed the under-belly, they noticed 4 cracks/fractures in the I-beam on both sides behind all 4 wheels. The cracks vary in length. They told me to contact heartland to see what can be done. I…”
“June 2023 from the inside of the rv we noticed the back end of the rv sagging. I inspected the frame and found it was broken in several places. The right side of the 'I' beam was cracked just above the rear leaf spring hanger. On the left side of the trailer the leaf spring hanger was broken off…”
“The contact owns a 2019 heartland mallard m27 rv equipped with a dometic ac unit, manufacturer number: b57915.711j0, serial number: 73826296, and product number: 936002207. The contact stated while he was asleep, he started to smell a burning odor entering through the ac vents. The contact stated…”
“Camping world did a warranty axle repair in march 2021. During this repair, they mounted the axle but did not connect the electrics - I have pictures of coiled wires they left after mounting the new axle. This meant that the rear axle did not have the electric brakes, or the emergency breakaway…”
“Camping world did a warranty axle repair in march 2021. During this repair, they mounted the axle but did not connect the electrics - I have pictures of coiled wires they left after mounting the new axle. This meant that the rear axle did not have the electric brakes, or the emergency breakaway…”
“Camping world did a warranty axle repair in march 2021. During this repair, they mounted the axle but did not connect the electrics - I have pictures of coiled wires they left after mounting the new axle. This meant that the rear axle did not have the electric brakes, or the emergency breakaway…”
“The dexter axle and bearing came apart. In 2018 several recalls were made for similar axles with a defect in the bearing and hub causing overheating and failure. Our approximately 5.1-5.2k lbs trailer axle failed in the same manner but wasn't listed and dexter is denying a problem in their…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2019 Heartland Mallard as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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