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Remanufactured Dodge 4.7L V8 Engine - Durango
4.7L · V8 · Part DDF9
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We'll confirm availability and your price on this remanufactured engine — warrantied, with a refundable core.
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4-year no-fault nationwide warranty — includedOn gas engines in non-commercial use, at no extra charge. The builder’s standard cover is 3 years, parts only. Every gas engine we sell includes the 4-year no-fault warranty with labour, at no extra charge.
- “No fault” means we do not investigate why it failed — if a covered engine fails inside the term, it is covered.
- Labour is paid up to CAD $95.00 per hour — a cap on the rate, not a flat payout — and only for the remove-and-replace hours in the Mitchell labour guide. Diagnostic time is covered up to 2 hours, and fluids up to CAD $200.00. Towing and a rental car are not covered. Anything not listed here needs to be agreed with us before the work starts.
- The 4 years start the day the engine is installed, and a claim needs proof that a professional shop installed it.
- Unlimited kilometres, and no deductible.
- Call us before any warranty work starts, so we can authorise it. Labour paid on a repair we were not asked about first is not covered.
- A claim starts with a call to us. We file it with the manufacturer, and the manufacturer pays it.
Diesel engines, and engines put into commercial service, are not covered by this 4-year warranty — the terms vary by engine, so call us for the terms on the unit you’re pricing.
Fits
- Dodge Durango 2004–2004 · 4.7L V8
Not sure it fits? Call (780) 473-2424 with your VIN and we'll confirm.
4-year warranty included
Refundable core
Ships Canada-wide
Engine guide
Chrysler PowerTech 3.7L V6 / 4.7L V8
Also known as: PowerTech V6/V8, 3.7 Magnum, 4.7 Magnum, EKG (3.7L), EVA (4.7L), EVC (4.7L High Output), Corsair (2008+ 4.7L)
Overview & history
The PowerTech 3.7L V6 and 4.7L V8 were Chrysler's workhorse truck and SUV engines from 1999 through 2013 — and the basic design began at American Motors before Chrysler bought AMC in 1987. When the 4.7L V8 debuted in the 1999 Jeep Grand Cherokee WJ, it was Chrysler's first all-new V8 since the 1960s, replacing the pushrod 5.2L Magnum with a modern chain-driven single-overhead-cam layout. The 3.7L V6 (engine code EKG) followed for 2002 in the Jeep Liberty — essentially the V8 minus two cylinders, another AMC idea, with a balance shaft added to smooth out the 90-degree V6 layout. Both were built at the Mack Avenue Engine Complex in Detroit, where more than 3 million were produced before the last 4.7 came off the line on April 9, 2013. The 4.7 gained a 265-hp High Output version in 2002 and a revised dual-spark-plug 'Corsair' version in 2008. The Pentastar V6 and 5.7 Hemi replaced the family, but PowerTech-powered Rams, Dakotas, Durangos, Libertys and Grand Cherokees remain everywhere on Alberta roads.
Specs & engineering
- •Cast-iron block, aluminum SOHC heads, two valves per cylinder, chain-driven cams — one per bank.
- •Shared 3.66-in (93 mm) bore; the 4.7 V8 runs a 3.405-in stroke (4,698 cc), the 3.7 V6 a longer 3.57-in stroke (3,701 cc).
- •The 3.7 is a 90-degree V6 with a 30-degree split-pin crank and a counter-rotating balance shaft for even firing and low vibration.
- •Base compression 9.6:1 with sequential multi-port injection; the 2008+ dual-plug 4.7 moved to 9.8:1.
- •Factory ratings: 3.7 — 210 hp / 235 lb-ft; 4.7 — 235 hp / 295 lb-ft; 4.7 HO — 265 hp / 330 lb-ft; 2008+ 4.7 — up to 310 hp / 334 lb-ft.
- •2008 'Corsair' refresh: two spark plugs per cylinder, slant/squish combustion chambers, hotter cam, 74 mm throttle body, shorter-runner intake.
- •4.09-in bore spacing and 9.09-in deck height — no parts shared with the old LA/Magnum V8s despite the '4.7 Magnum' nickname.
- •Valve seats press into the aluminum heads — the reason cooling-system health is critical on this family.
- •2007-2012 Liberty 3.7s used wasted-spark ignition, with one coil firing two cylinders.
Generations & variants
- •4.7L V8 (EVA), 1999-2007: original 235 hp version, launched in the 1999 Grand Cherokee WJ, later in Dakota, Durango and Ram 1500.
- •4.7L V8 High Output (EVC), 2002-2008: 265 hp / 330 lb-ft; debuted in the Grand Cherokee Limited/Overland, later offered in Dakota and Ram.
- •4.7L V8 'Corsair' refresh, 2008-2013: dual plugs per cylinder, revised heads and intake, 290-310 hp; flex-fuel (E85) versions offered.
- •3.7L V6 (EKG), 2002-2012: 210 hp balance-shaft V6; base engine for Liberty, Dakota, Durango, Nitro, Ram 1500 and Raider.
Vehicles it powered
- •Jeep Grand Cherokee WJ/WK (1999-2009, 4.7)
- •Jeep Liberty KJ/KK (2002-2012, 3.7)
- •Jeep Commander (2006-2010, 3.7/4.7)
- •Dodge Ram 1500 (2002-2012, 3.7/4.7)
- •Dodge Dakota (2000-2011, 3.7/4.7)
- •Dodge Durango (2000-2009, 3.7/4.7)
- •Dodge Nitro (2007-2011, 3.7)
- •Chrysler Aspen (2007-2009, 4.7)
- •Mitsubishi Raider (2006-2009, 3.7/4.7)
Casting numbers
| 53020801 | 4.7L V8 left (driver-side) cylinder head, 1999-2008 |
| 53020802 | 4.7L V8 right (passenger-side) cylinder head, 1999-2008 |
| 53020804 | 4.7L V8 right (passenger-side) cylinder head, alternate casting, 1999-2008 |
Known issues & fixes
Dropped valve seats after overheating (the family's famous failure)
What to watch for: Any overheating episode followed by a sudden dead miss, rattle, or lost compression in one cylinder — hot aluminum heads can loosen their pressed-in seat pockets.
The fix: A rebuilt or replacement head with updated seat machining. Keep the cooling system healthy and never drive an overheating PowerTech.
Oil sludge in narrow oiling passages
What to watch for: Startup tick, low oil pressure, or stretched oil-change intervals — early 4.7s are especially unforgiving of old oil.
The fix: Strict oil-change intervals with quality oil. Light varnish cleans up; a badly sludged engine usually needs teardown or replacement.
Ticking lash adjusters and rockers (3.7 especially)
What to watch for: A top-end tick that never fades after warm-up; a clogged lash adjuster can let a rocker walk out and hold a valve shut.
The fix: Fresh oil first; if it persists, replace the affected lash adjusters and rockers before it escalates.
Head gasket failure following overheat events
What to watch for: Coolant loss with no visible leak, milky oil, or bubbling in the coolant bottle — usually downstream of a tired radiator, thermostat or fan clutch.
The fix: Gaskets and resurfacing for minor cases; warped or cracked heads need replacement. Cooling-system condition decides engine life.
Did you know?
- ★The family was designed at American Motors before Chrysler's 1987 buyout, and the 4.7 became Chrysler's first all-new V8 since the 1960s — a Ward's 10 Best Engines pick for 1999.
- ★Despite the shared 'PowerTech' name and 'Magnum' nickname, these engines share nothing with the Jeep 4.0L inline-six or the old LA-series 5.2/5.9 Magnum V8s.
- ★The Mitsubishi Raider pickup (2006-2009), a rebadged Dodge Dakota, is the only Mitsubishi ever sold with a Chrysler V8 under the hood.
- ★After the last 4.7 was built on April 9, 2013, the Mack Avenue engine site later became Mack Assembly, where Jeep builds the Grand Cherokee L today.