4.7L V8 Magnum Engine for Sale | OEM Used Chrysler PowerTech 4.7 Liter V8 Engine

Chrysler PowerTech 4.7 liter V8 the workhorse light-duty V8 from 1999-2013. The 4.7L V8 Magnum is the OEM Chrysler PowerTech 4.7 liter V8 engine, the workhorse 4.7L V8 in the Chrysler / Dodge / Jeep light-duty lineup from 1999 through 2013. Originally introduced for the 1999 Jeep Grand Cherokee WJ as a replacement for the older 318 / 5.2L Magnum V8, the PowerTech served across Dodge Ram, Dakota, Durango, Jeep Grand Cherokee, and Jeep Commander applications. Outputs range from 235 HP (early original) to 310 HP (later High-Output). Specifications: 4.7 liters displacement, 90-degree V8, aluminum SOHC heads with 2 valves per cylinder, cast iron block, naturally aspirated, port fuel injection (NOT direct injection), no VVT, timing chain driven, E85 capable on FlexFuel variants.

Critical variant distinction with substantially different output. The 4.7L PowerTech has two major variants with substantially different output and internal differences. PowerTech Original (1999-2007): 235-238 HP at 4,800 RPM, 295 lb-ft torque; lower-output variant with original cylinder heads, intake manifold, and ECU calibration. PowerTech High-Output / HO (2008-2013): 303-310 HP at 5,650 RPM, 334 lb-ft torque; high-output variant with improved cylinder heads, higher-flow intake manifold, revised camshaft, and updated ECU calibration; produced approximately 70 HP more than the original. The HO variant is NOT a direct replacement for the original PowerTech without ECU and intake / exhaust verification.

Multiple Chrysler / Dodge / Jeep applications from 1999-2013. Jeep Grand Cherokee WJ (1999-2004): first application, 235 HP original. Dodge Dakota / Durango (2000-2009): mid-size pickup and mid-size SUV applications, 235-238 HP original. Dodge Ram 1500 (2002-2008): light-duty full-size pickup, 235-238 HP original. Jeep Grand Cherokee WK (2005-2010): second-generation WK Grand Cherokee, 235-238 HP original then 303 HP High-Output for 2008-2010. Jeep Commander XK (2006-2010): three-row Jeep flagship, same engine variants as WK Grand Cherokee. Dodge Ram 1500 (2009-2013): updated Ram with the High-Output PowerTech 4.7L.

Six documented concerns buyers must understand. Cooling system / head gasket issues: the most documented 4.7 PowerTech concern; coolant loss, overheating, and eventual head gasket failure are well-documented patterns; many 4.7L engines fail prematurely due to overheating events. Sludge buildup: susceptible with extended oil change intervals or low-quality oil; sludge clogs oil passages causing catastrophic engine damage. Timing chain wear: tensioner can fail causing chain slack and possible chain skip; replacement is engine-out labor. Valve seat / valve guide issues: some 4.7L PowerTech engines exhibit valve seat erosion or valve guide wear at high mileage. Cylinder head crack: often related to cooling system issues. Sensor failures: crankshaft, camshaft, knock sensors can fail causing intermittent running or no-start.

Multiple Chrysler engines across light-duty through heavy-duty. The Chrysler 4.7L PowerTech V8 (this listing) is the mid-size V8 from the 1999-2013 era. The 3.6L Pentastar engine from is the Chrysler / FCA / Stellantis modern V6 workhorse for Jeep Wrangler / Grand Cherokee / Cherokee / Renegade / Dodge Charger / Challenger / Durango / Chrysler 300 / Pacifica / Ram 1500 applications 2011 plus, the modern V6 that replaced the 4.7L PowerTech V8 in many applications as Chrysler moved to V6 base engines for fuel economy. The Cummins M11 heavy-duty diesel plus the 5.9 / 6.7 Cummins inline-6 in Ram 2500 / 3500 HD pickups were the heavier-duty alternatives. The 48RE 4-speed automatic and G56 6-speed manual are the heavy-duty transmissions paired with the Cummins, not with the lighter-duty 4.7L PowerTech V8.

Strict oil and coolant maintenance, proactive timing chain service. Strict maintenance is essential given the documented reliability concerns. Use Chrysler-recommended 5W-30 or 5W-20 engine oil. 5,000 mile oil change intervals are strongly recommended given the documented sludge issue. Monitor coolant condition proactively and perform coolant changes every 30,000-60,000 miles since the cooling system / head gasket issue is the most documented 4.7 PowerTech concern. Address overheating events immediately because a single overheating event can damage head gaskets. Proactive timing chain tensioner replacement at 100,000-150,000 miles prevents chain failure. Use Top Tier-certified fuel.

No. The 4.7L PowerTech is NOT a HEMI engine. The 4.7L PowerTech is a SOHC 2-valve V8 design, NOT a HEMI engine. The Chrysler HEMI family (5.7L HEMI, 6.1L HEMI, 6.4L HEMI / 392, 6.2L Hellcat Supercharged HEMI) uses hemispherical combustion chambers with pushrod actuated valvetrain and is a completely different engine architecture. The 4.7L PowerTech and the HEMI family are distinct engine families that served different roles in the Chrysler lineup. The 4.7L PowerTech was the workhorse mid-displacement V8 for light-duty applications; the HEMI was the premium high-performance V8 for performance and heavy-duty applications. Some Dodge Durango variants were sometimes aftermarket-converted from 4.7L PowerTech to 5.7L HEMI, but these are not factory equivalents.

No. There is no core return required.