Cummins Equipped Vehicles ONLY - The replacement oil pan gasket can be a four piece gasket rather than a single piece gasket. This applies to Cummins 5.9L and 6.7L engines only.
full bulletin at NHTSA ↗2005 Dodge Ram 3500 engine problems
severe 12 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
12
Recalls
0
Avg fix
$3,100
1crash
4fires
When does it fail?
Of the 12 engine complaints filed for the 2005 Dodge Ram 3500, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 5 model years of Dodge Ram 3500 in our records for engine problems, this one ranks #3 by owner-complaint volume.
No new NHTSA engine complaint has been filed on this vehicle in over 12 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Service - Four Piece Oil Pan Gasket All Cummins Equipped Vehicles ONLY - The replacement oil pan gasket can be a four piece gasket rather than a single piece gasket. This applies to Cummins 5.9L and 6.7L engines only. Installation: 1. Clean the oil pan T-joints.~ 2. Fill the T-joint between the pan rail/gear housing and pan rail/rear seal retainer with sealant. Use Mopar® Silicone Rubber Adhesive Sealant or equivalent. 3. Apply a 2-mm [0.063-in] bead of Mopar Engine Sealant RTV Silicone Rubber Adhesive, to the oil pan flange.~ 4. The four piece gasket will need to be assembled to make a complete oil pan gasket. 5. Lay the oil pan gasket(s) onto the oil pan flange.~ 6. Ensure the oil pan gask
full bulletin at NHTSA ↗Valve Body. These may cause over drive cycling.
full bulletin at NHTSA ↗NAG1 (5A580) Valve Body As per Warranty Bulletin D-13-22, please use R2108213A$ valve body for all Warranty (W), Mopar (M) and Mopar Vehicle Protection (F) claims.~ Assembly also includes Filter (52108325AA) and Gasket (52108332AA).~
full bulletin at NHTSA ↗Part Description: 5.7L Long Block Issue Description: This 5.7L Long Block Assembly is compatible with both EGR and Non-EGR applications. An EGR Block-Off Plate (53032739AA) must be ordered when installing this Long Block Assembly in a Non-EGR application. Unless, the EGR Block-Off Plate is being transferred from the old engine.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2005 Dodge Ram 3500 engine has generated reports of severe, sometimes life-threatening failures. One owner experienced catastrophic engine block rupture at highway speed, with 12 quarts of oil dumping onto the road and fire under the hood; the owner suspects inadequate fuel filtration caused overfueling and hydro-locked pistons, a theory he backed up with an inspection showing fuel pooled on cracked pistons. A second owner had the engine catch fire while parked at 89,000 miles; the manufacturer's engineer blamed the battery but provided no fix.
Exhaust manifold cracking is the most-reported problem, with multiple owners citing cracks that leak exhaust into the cab and corroded bolts that break off. Dodge denied warranty coverage to one owner at 7 years and 120,000 km, dismissing the defect as age-related despite low mileage. Another reported a fuel injector line crack that soaked the engine bay and undercarriage with diesel fuel during driving.
Less common but equally troubling: one engine experienced uncontrolled high idle and runaway, blowing out the bell housing and ripping the transmission and exhaust; another had the cooling fan blade sever its own wiring harness; a third stalled unexpectedly during normal stop-and-go driving. Owners report these failures span the vehicle's operational life and cite internet forums suggesting they're recurring issues the manufacturer has ignored.
Same Dodge Ram 3500 engine reports on nearby years: 2007 · 2008
Failure modes owners describe
Catastrophic engine failure with fire
Engine block rupture with complete oil loss, fire under hood, and total engine destruction. Owner alleges inadequate fuel filtration leads to overfueling, hydro-locked pistons, connecting rod failure, and block rupture. Puddled fuel found on cracked pistons after failure.
When: July 2017; 12+ years of ownership, appears to be high-mileage vehicle
Symptoms owners cite: 12 quarts of oil on ground; Flames under hood; Hole in engine block; Engine stalled/failed catastrophically at highway speed
Repairs/costs cited: Complete engine replacement, $18,000 cost. Cummins and Chrysler inspected vehicle but refused to provide inspection reports or disclose findings.
Recalls/TSBs owners mention: Cummins and Chrysler inspected vehicle; refused to investigate cause or provide copies of inspection reports. No recall or TSB mentioned.
Exhaust manifold cracking and warping
Exhaust manifold cracks and warps, allowing exhaust gases to enter cab and leak from bolt connections. Multiple gaskets found installed on single ports as apparent manufacturing workaround. Manifold bolts break off. Reported as common problem across model years with no manufacturer action.
When: 7 years and 120,000 km of ownership; at 156,850 miles in another complaint
Symptoms owners cite: Puff puff sound from underside of motor; Broken manifold bolt; Loud exhaust leak; Exhaust gases entering cab causing sickness; Manifold warping after heating
Repairs/costs cited: Repair required after bolt breakage; multiple gaskets found stacked on individual ports indicating manufacturing defect. Owner paid for repair after warranty denial.
Recalls/TSBs owners mention: Dodge claimed warranty expired at 7 years/120,000 km; refused coverage citing age despite low mileage. No TSB or recall mentioned.
Engine fire while parked
Vehicle caught fire while parked. Manufacturer engineer attributed fire origin to battery in engine compartment. Vehicle completely destroyed.
When: At 89,000 miles
Symptoms owners cite: Vehicle engulfed in flames while parked; Complete vehicle destruction
Repairs/costs cited: Vehicle totaled; fire department called and report filed.
Recalls/TSBs owners mention: Manufacturer sent engineer to inspect; determined fire began in engine compartment due to battery. No corrective action mentioned.
High idle and uncontrolled engine runaway
Engine idles high on startup and will not shut off, causing uncontrolled acceleration and catastrophic mechanical damage. Runaway engine blew out bell housing, damaged transmission and cab floor, ripped exhaust and wiring.
When: At 76,000 miles
Symptoms owners cite: High idle on startup; Engine will not shut off; Uncontrolled acceleration; Bell housing blown out; Transmission damage; Cab floor damage; Exhaust torn from under cab; Wiring damaged and ripped out
Repairs/costs cited: Multiple parts disengaged; clutch and other components damaged or separated.
Clutch fan wires severed by fan blade
Cooling fan blade severed wires to clutch fan, rendering the fan inoperable. Dealer was unable to diagnose the failure.
When: At 124,000 miles
Symptoms owners cite: Clutch fan wires severed; Fan blade damage
Repairs/costs cited: Owner personally repaired the issue after dealer failed to diagnose.
Recalls/TSBs owners mention: Manufacturer was contacted; no corrective action mentioned.
Cracked fuel injector line with fuel spray
Number 4 fuel injector line cracked and sprayed fuel throughout engine compartment and undercarriage while driving. High fire risk from fuel saturation.
When: Unknown mileage
Symptoms owners cite: Cracked fuel injector tube/line; Fuel sprayed on entire engine compartment; Undercarriage soaked with fuel; Visible fuel leak during driving
Repairs/costs cited: Towed to dealer; charged for repair as not covered by warranty.
Recalls/TSBs owners mention: Dealer refused warranty coverage.
Engine stalling during operation
Engine stalls without warning during normal driving—while leaving parking lot at stop sign, and at highway speed during left turn. Owner notes similar reports on internet forums suggesting this is common.
When: Unknown mileage
Symptoms owners cite: Unexpected engine stall while idling at stop sign; Unexpected engine stall while decelerating from highway speed
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Tl* the contact owns a 2005 Dodge Ram 3500. The contact stated that the wires to the clutch fan were severed by the fan. The vehicle was taken to the dealer where the failure could not be diagnosed. The vehicle was personally repaired by the contact. The manufacturer was contacted about the failure. The failure mileage was 124,000. The VIN was unavailable.
Exhaust manifold cracked along center causing exhaust to enter cab area unknown to driver until sickened later. After consulting with several parts suppliers and mechanics it was discovered that this is a common problem among these model years and Chrysler corp. Has done nothing about the problem.
Had engine trouble with your 2005 Dodge Ram 3500?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2005 Dodge Ram 3500?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Across the 11 complaints that reported odometer mileage, most engine failures cluster between 62,000 and 156,850 miles, with the median around 81,000. A quarter of owners report trouble before 62,000; a quarter make it past 156,850. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2005/Dodge/Ram 3500.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.