Ferrari 458 599 812 Variable Valve Timing Adjuster Exhaust Camshaft 248020

Ferrari Variable Valve Timing (VVT) Adjuster — Exhaust Camshaft | OEM 248020

Genuine OEM exhaust camshaft VVT adjuster for Ferrari. Factory-original variable valve timing actuator controlling exhaust camshaft phase angle — directly governing overlap timing, emissions compliance, power delivery, and throttle response across the RPM range. Sourced directly from Ferrari's OEM supply chain.

Part Numbers

• 248020 — VVT Adjuster, Exhaust Camshaft

Fitment (Verified)

⚠️ VIN confirmation required before ordering. OEM part number 248020 spans multiple Ferrari platforms sharing common engine architecture. Exact model and engine variant fitment must be confirmed against your vehicle's VIN — do not order on part number alone.

Why OEM The exhaust camshaft VVT adjuster operates under continuous oil pressure cycling at engine speed. Tolerances between the adjuster rotor, housing, and locking pin are factory-calibrated to the engine's oil viscosity spec and hydraulic pressure curve. Aftermarket units are frequently manufactured to wider tolerances, causing:

• Delayed or sluggish cam phasing response
• VVT fault codes with no underlying mechanical failure
• Rattling at cold start due to locking pin slop
• Premature wear accelerated by Ferrari's high-rev operating envelope

This is the factory-spec assembly — correct rotor clearance, locking pin engagement, and sprocket indexing for ECU-commanded phase targets.

Installation Note VVT adjuster replacement requires camshaft locking and precise TDC alignment before removal. Incorrect installation phasing will cause immediate start/run faults and potential valve-to-piston contact on interference-fit engines. Ferrari DEIS or equivalent diagnostic tooling recommended post-installation to verify cam timing adaptation. Engine oil condition and pressure should be assessed — a failed adjuster is frequently downstream of a neglected oil service interval.

Related Note Intake camshaft VVT adjuster is a separate part number. If fault codes implicate both banks or both camshafts, confirm which adjuster (intake vs. exhaust, left bank vs. right bank) is at fault before ordering.