Jeep 2.4L L4 Remanufactured Engine – 2004-2006

Description

Adhere to strict commercial fleet uptime standards with 290 lbs of precision-machined DOHC four-cylinder powertrain engineering that outputs dependable low-range pulling power across severe off-road service routes inside the Jeep 2.4L L4 Remanufactured Engine. Built for 2004 to 2006 commercial utility vehicles, this 16-valve PowerTech design provides muscular torque and verified long-term mechanical stamina.

Cast with a thick-wall gray iron block, cylinder bores receive diamond plateau honing to Ra 30 micro-inches with a 45-degree crosshatch. An induction-hardened forged steel crankshaft pairs with forged powdered metal connecting rods and hypereutectic aluminum pistons with graphite skirt coatings. Equipped with dual counter-rotating balance shafts, an aluminum DOHC cylinder head, a dry weight of 290 lbs, and a 4.0-quart oil capacity, internal tolerances remain consistent under continuous load.

Key Features of Jeep 2.4L PowerTech

Off-road fleet operations managers buy Jeep 2.4L L4 remanufactured engine packages to preserve compact utility vehicles without taking on new vehicle purchase debt. Automated cold-spin testing verifies hydrodynamic bearing oil film retention across every single crankshaft journal before transport packaging.

• Dual overhead camshafts actuate sixteen valves for broad low-end pulling torque across rugged trails.
• Multi-layer steel cylinder head gaskets maintain combustion containment during severe summer heat cycles.
• Dual internal counter-rotating balance shafts cancel secondary engine harmonics for smooth operation.
• Cast iron cylinder block structure resists warping through severe operating heat cycles.
• High-pressure internal trochoid oil pump feeds 50 PSI through clear block lubrication galleys.
• Dynamic mass balancing keeps harmonic rotating unbalance below 0.5 gram-inches.
• This Jeep 2.4L crate motor matches factory six-speed manual and automatic transmission bell housings.

Four Cylinder Dynamic Thermal Bounds

Engine lubrication maintains 18 to 22 PSI at warm idle and stabilizes between 45 and 60 PSI at 3000 RPM cruising speed. Coolant temperature operates from 185°F to 200°F via the primary thermostat circuit. The engine outputs 147 continuous brake horsepower at 5200 RPM and 165 lb-ft torque at 4000 RPM. A 9.5:1 compression ratio yields 165 to 180 PSI cranking compression across all four cylinders. Rated for Severe Commercial Fleet duty, radiator heat rejection reaches 2,900 BTU/min under continuous hauling.

Transmission Interface Snout Dimensions

The rear crankshaft flange uses a standard 6-bolt flywheel bolt pattern machined for manual clutches or automatic flexplates. Pilot bore diameter measures 0.826 inches with concentricity verified within 0.0008 inches to prevent input bearing deflection. Front crankshaft snout measures 1.102 inches with a precision keyway, holding crank thrust endplay within 0.003 to 0.006 inches.

Priming Procedures Service Guidelines

Technicians must prime the lubrication channels using an external oil priming container through the oil pressure sensor port before initial starting. Fill with 5W-30 motor oil and clear air from the cooling system using vacuum filling equipment. This powertrain is not engineered for forced induction turbochargers exceeding 5 PSI boost, nitrous systems, or racing competition.

• Check crankcase motor oil level and coolant overflow bottles each shift.
• Change engine motor oil and filter every 4,000 miles or 150 hours.
• Inspect timing belt condition and tensioner pulley every 12 months.

Commercial Warranty Crate Manifest

Protected by an extensive 3-Year / 100,000-Mile commercial fleet warranty covering parts and labor standards. Transport crate contents include the remanufactured long block engine, high-capacity oil pump, full vehicle installation gasket set, water pump inlet o-ring, pre-lube instruction sheet, and dynamometer cold-test validation reports.