Featuring an exact 1798cc displacement, this Nissan Versa MR18DE Remanufactured Engine features casting EL0 cylinder head metallurgy and continuous variable valve timing. Machinists line-hone the aluminum block and micro-polish crankshaft journals. Technicians must conduct complete cooling system vacuum bleeding and execute an exact 500-mile break-in oil change to protect cam phaser passages from circulating particulate matter.

Cast with block markings MR18 and EM5, this open-deck die-cast aluminum block features thin-wall cast iron liners bored to match oversized hypereutectic pistons. The rotating group features a micro-polished forged steel crankshaft, forged connecting rods, and coated piston skirts. Cylinder head casting EL0 houses dual overhead camshafts with intake CVTCS phasers. Engine dry weight measures 240 lbs in a crated envelope of 36in length by 36in width by 36in height. Engine oil capacity equals 4.2 quarts.

Key Features of Nissan MR18DE

Professional automotive technicians buy Nissan MR18DE remanufactured engine assemblies to eliminate severe cylinder scuffing and restore factory fuel trim values. This long block replacement provides verified tolerances for front-wheel-drive passenger car applications.

- Cylinder head casting EL0 undergoes CNC multi-angle valve seat cutting to maintain positive combustion seal.
- Diamond plateau honed cylinder walls establish an Ra 15 micro-inch finish for rapid ring seating.
- Micro-polished crankshaft journals eliminate journal taper to ensure hydrodynamic bearing oil film separation.
- Align-honed aluminum main bearing saddles support smooth crankshaft rotation under elevated engine speeds.
- Variable timing sprockets undergo ultrasonic cleaning and hydraulic bench testing for fast phase adjustment.
- Multi-layer steel head gaskets ensure reliable combustion chamber seals across severe thermal operation cycles.
- New high-grade cylinder head bolts supply uniform clamp loads across the aluminum engine block deck.

Dyno Load Operational Tolerances Specifications

Dyno cell testing validates internal oil gallery pressures and shaft torque production before packaging. The 1.8L 1798cc DOHC engine produces 122 HP at 5,200 RPM and 127 ft-lbs of shaft torque at 4,800 RPM. Main journal oil clearance holds between 0.0010in and 0.0014in, while connecting rod clearance measures 0.0011in to 0.0015in. Individual cylinder compression verifies at 185 PSI across all 4 chambers. Hot oil pressure maintains 55 PSI at 3,000 RPM with regulated coolant operating temperatures steady at 190°F.

Vehicle Fitment Drivetrain Guide

This long block repowers 2007 to 2012 Nissan Versa subcompact models equipped with the 1.8L 1798cc DOHC MR18DE engine and intake CVTCS. Drivetrain compatibility includes front-wheel drive paired with 6-Speed manual transaxles, 4-Speed automatics, or CVT transaxles. Explicit fitment exclusions ban motorhome chassis usage, 1.6L HR16DE Versa variants, or 2.0L MR20DE Sentra platforms due to divergent stroke dimensions, bellhousing bolt spacing, and electronic throttle configurations.

Installation Protocol Service Requirements

Technicians must complete an electronic throttle relearn procedure, check intake manifold gaskets, and purge air from the heater core circuit during engine installation. Operating warnings explicitly prohibit installation in motorhomes, commercial delivery vans exceeding gross axle ratings, or custom turbo systems exceeding 6 PSI boost.

- Pre-fill the spin-on oil filter and prime engine lubrication passages with 5W-30 motor oil.
- Drain initial break-in oil and install a replacement oil filter at the 500-mile service marker.
- Inspect variable valve timing solenoid harnesses and cooling system hose clamps at 1,500 miles.

Warranty Terms Core Return Policy

This long block carries our dedicated 3-Year Unlimited-Mile warranty for reliable road service. We provide free prepaid return freight shipping for your rebuildable engine core inside a standard 30-day window. The crated assembly contains the remanufactured long block, complete timing drive, oil pan, and valve cover.