• Nissan Navara NP300 – YS23DTTi 2.3L 4-Cylinder Turbo Diesel | 2015–2023

✅ Engineered specifically for NP300 models with the YS23DTTi 2.3L engine

How It Works: Installed between the fuel tank and factory filter, the PreLine-Plus stops water before it reaches your injectors. The in-cab multi-stage alarm provides visual and audible alerts when water is detected—no guessing, just listen for alerts.

Key Features:

• 100% water separation — stops water before it reaches injectors*
• 98% particle filtration — removes contaminants down to 30μm
• In-cab multi-stage alarm — visual and audible alerts if water is detected
• Zero manual checking — no guessing, just listen for alerts
• Spin-on filter design — simple service and long life
• No bypass system — contaminants never reach your engine
• Protects against corrosion and abrasive wear
• Prevents injector and pump damage

*Tested on 300μm water droplets for real-world conditions.

💡 Why This Matters: The YS23DTTi's common rail system is highly sensitive to water contamination. With repair costs often exceeding $10,000, the PreLine-Plus with integrated water alarm provides superior protection and automatic alerts—keeping your NP300 safe from costly fuel system damage.

How It Works: The ProVent keeps your intake and turbo spotless by capturing oil vapour before it enters your intake system. Prevents carbon build-up and regulates crankcase pressure for consistent performance.

Key Features:

• 98% oil separation efficiency — keeps intake and turbo spotless
• Prevents oil and soot entering clean air intake
• Protects turbocharger, EGR, and intake system
• Prevents carbon build-up and reduces oil residue
• Regulates crankcase pressure for consistent performance
• Reduces oil consumption and exhaust smoke
• Extends turbo and intercooler lifespan
• Minimizes oil consumption

💡 Why This Matters: Oil vapour causes carbon deposits that restrict airflow, foul sensors, and reduce power over time. The ProVent keeps your YS23DTTi's intake system clean, protecting vital components and maintaining optimal performance—essential for the long haul.

PreLine-Plus Pre-Filter System:

• Water Separation: 100% efficiency (tested on 300μm droplets)
• Particle Filtration: 98% efficiency (down to 30μm)
• Filter Type: Spin-on replaceable element
• In-cab multi-stage water alarm: Visual + audible alerts
• No bypass valve — full filtration always active
• Designed for YS23DTTi fuel system specifications

ProVent Ultimate Catch Can:

• Oil Separation: 98% efficiency
• Filter: MANN+HUMMEL media
• Drain tap for oil collection
• Optional return line to sump
• Engineered specifically for YS23DTTi crankcase system
• Built tough for Australian diesel quality and climate

PreLine-Plus Pre-Filter Kit:

• PreLine-Plus pre-filter assembly with spin-on filter
• In-cab multi-stage water alarm module (visual + audible)
• Navara NP300 YS23DTTi-specific mounting bracket
• Complete fuel line and fitting kit
• Wiring harness for alarm installation
• Hose clamps and connectors
• Mounting hardware
• Installation guide

ProVent Ultimate Catch Can Kit:

• MANN+HUMMEL ProVent catch can
• Navara NP300 YS23DTTi-specific mounting bracket
• Complete hose and fitting kit
• Drain tap assembly with hose
• Optional sump return line components
• Mounting hardware (bolts, washers, nuts)
• Spring clamps and cable ties
• Installation guide

✅ Dual engine protection — filtration + oil control in one kit

Recommended: Competent qualified mechanic

Combined DIY Time: 4–5 hours (both systems)

PreLine-Plus Installation:

• Mounts in engine bay between fuel tank and OEM filter
• Uses YS23DTTi-specific mounting bracket
• Water alarm module mounts in cab (dashboard or A-pillar)
• Wiring connects to cabin for visual/audible alerts
• Spin-on filter design for easy maintenance

ProVent Installation:

• Mounts in engine bay
• Connects to crankcase ventilation system
• Drain tap routed for easy access
• Optional return line to sump can be configured
• All hoses and fittings included

Important: Both systems can be installed separately or together. Detailed installation guides included with each kit for straightforward DIY or professional installation.

PreLine-Plus Pre-Filter:

• Water alarm will alert you automatically when water is detected
• Drain water when alarm sounds (simple drain procedure)
• Replace spin-on filter element per vehicle service schedule
• No manual checking required — alarm does the monitoring
• Fast filter changes thanks to spin-on design

ProVent Catch Can:

• Check oil level every 5,000–10,000 km
• Drain collected oil via drain tap when needed
• If using sump return line, oil automatically recirculates
• Replace filter element every 40,000 km (replacement elements available)

💡 Pro Tip: The integrated water alarm eliminates guesswork—when it sounds, simply drain the water in minutes. The spin-on filter design makes replacements quick and easy. Keep your YS23DTTi protected with minimal maintenance effort.

Q: Will this void my Nissan warranty?

A: No. Aftermarket protection devices don't void warranty under Australian Consumer Law. These systems protect your engine without interfering with factory components.

Q: Does this fit all NP300 Navara models?

A: This kit is specifically designed for 2015–2023 NP300 Navara models with the YS23DTTi 2.3L turbo diesel engine. The brackets and fittings are YS23DTTi-specific for perfect fitment.

Q: Is the water alarm included or sold separately?

A: The in-cab multi-stage water alarm is included with this kit! It provides both visual and audible alerts when water is detected—no need to manually check the filter.

Q: How does the PreLine-Plus differ from the Fuel Manager?

A: The PreLine-Plus offers superior 100% water separation efficiency (vs 95%) and comes with an integrated water alarm system. It also features a convenient spin-on filter design for faster maintenance and 98% particle filtration down to 30μm.

Q: Why is protection important for the YS23DTTi engine?

A: The YS23DTTi is a modern common rail diesel operating at extremely high pressures with tight tolerances. It's highly sensitive to water contamination and carbon build-up. This dual protection system is proven protection trusted by 4x4 owners nationwide and built for Australian diesel quality.

Q: How often do I need to drain water?

A: The water alarm will alert you automatically when water is detected. Simply drain when the alarm sounds—no scheduled checking required. Frequency depends on fuel quality, especially when fueling at remote stations.

Q: Can I install these systems myself?

A: If you're mechanically competent and comfortable working with fuel lines and basic wiring, yes. Most DIYers complete installation in 4-5 hours. Otherwise, any qualified mechanic can handle it. Detailed installation guides are included.

Q: Do I need both systems or can I buy them separately?

A: You can buy either system separately, but the combo kit offers better value and comprehensive protection. The PreLine-Plus protects your fuel system, while the ProVent protects your intake system—together they provide complete dual engine protection.

Q: Does the ProVent return oil to the sump automatically?

A: The kit includes components for an optional sump return line. You can configure it to either: (a) collect oil in the catch can for periodic draining, or (b) return clean oil back to the sump automatically. Your choice based on preference.

Q: Is this suitable for towing and touring?

A: Absolutely. This kit is built tough for Australian diesel quality and climate. Whether you're towing, touring, or daily driving, the dual protection system keeps your YS23DTTi running strong under all conditions.

Q: Will this improve performance or fuel economy?

A: While not primarily designed for performance gains, keeping your fuel and intake systems clean helps maintain optimal engine efficiency. Many NP300 owners report smoother running and maintained performance over time.

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