BMW S52 3.2L Inline-6 Engine – OEM Used | Fits 1998–2000 E36 M3 & Z3 M | 68K Miles | Complete Motor Assembly

Description

BMW S52 3.2L Inline-6 Engine – OEM Used | Fits 1998–2000 E36 M3 & Z3 M | 68K Miles | Complete Motor Assembly

Bring iconic BMW inline-6 performance back to life with this OEM S52 3.2L 6-cylinder engine, removed from a U.S.-spec BMW E36 M3/Z3 M with just 68,000 miles (approx. 109,000 km). The S52 is a beloved powerplant known for its silky-smooth powerband, strong torque, and bulletproof reliability—making it a perfect choice for restoration, engine swaps, or performance builds.

This is a complete engine assembly from a 1999 Z3 M, professionally removed, compression-tested, and inspected. Ideal for direct replacement in 1998–2000 E36 M3 (U.S.) or Z3 M Coupe/Roadster models, or as the basis for a classic E30 swap or track build.

🔧 Product Overview

This listing includes a BMW S52B32 inline-6 engine assembly—a naturally aspirated, 24-valve DOHC 6-cylinder motor delivering strong low-end torque and BMW’s legendary smooth revving. Built upon the M52 block, the S52 features forged steel connecting rods, higher-lift camshafts, larger displacement, and increased compression, making it the U.S.-spec M engine for the E36 chassis.

With a factory output of 240 HP and 236 lb-ft of torque, this engine offers excellent response and tuning potential for enthusiasts who want a mix of reliability and performance without the complexity of turbocharging.

✅ Key Features

• Engine Code: S52B32

• Displacement: 3.2L / 3152 cc

• Configuration: Inline-6 / DOHC / 24-valve

• Fuel System: Sequential fuel injection

• Fuel Type: Petrol (Gasoline)

• Induction: Naturally aspirated

• Horsepower: 240 HP (179 kW) @ 6,000 RPM

• Torque: 236 lb-ft (320 Nm) @ 3,800 RPM

• Compression Ratio: 10.5:1

• Redline: 6,800 RPM

• Mileage: 68,000 miles (approx. 109,000 km)

• Condition: Used – OEM, compression-tested, clean internals

• Donor Vehicle: 1999 BMW Z3 M Coupe (U.S. spec)

📦 What’s Included

This is a complete engine assembly, which includes the following components as removed:

• Engine block with crankshaft, pistons, and rods

• Cylinder head with cams, lifters, and valves

• Valve cover and timing components

• Intake manifold

• Exhaust manifold (included if present)

• Fuel rail and injectors

• Throttle body and idle control valve

• Sensors and engine accessories (as pictured)

• Wiring harness (partial)

• Engine mounts (if included during removal)

Not included unless noted: ECU/DME, transmission, driveshaft, or engine accessories like alternator, starter, or AC compressor. Please refer to images or contact us for specific inclusions.

📌 Fitment Guide

This S52 engine is a direct replacement for the following BMW models:

• 1998–1999 BMW M3 (E36, U.S. market only)

• 1998–2000 BMW Z3 M Coupe / Z3 M Roadster

Chassis Compatibility:

• E36 M3 Coupe, Convertible, and Sedan (U.S.)

• E36/7 Z3 M Coupe and Roadster (S52 variant)

Popular Swap Applications (with modifications):

• BMW E30 3-Series

• E34, E36 non-M

• Classic BMW restomods, drift builds, and track cars

Note: This is the U.S.-spec S52, not to be confused with the European S50/S54 engines. ECU and emission differences may apply depending on location. Always verify compatibility via VIN or consult your technician before installation.

🛠️ Installation Notes

• Professional installation strongly recommended

• Replace all gaskets, fluids, timing components, and service items before first start

• ECU may need coding or synchronization with your vehicle’s immobilizer

• For E30/E36 swaps, appropriate engine mounts, wiring adapters, and oil pan configurations may be required

• Confirm condition of common wear items: VANOS, water pump, thermostat, idle control valve