D-MAX / MU-X / BT-50 Fuel Manager + ProVent Catch Can Combo Kit - FMPV645DPK

Fuel Manager Pre-Filter Kit

• Fuel Manager filter assembly with clear bowl
• 4JJ3 vehicle-specific mounting bracket (no cutting required)
• Fuel line and fitting kit
• Hose clamps, connectors and plugs
• Engine bay and windscreen labels
• Installation guide

ProVent Ultimate Catch Can Kit

• MANN+HUMMEL ProVent catch can
• 4JJ3 vehicle-specific mounting bracket
• Hose and fitting kit
• Drain tap assembly with hose
• Sump return line components (optional configuration)
• Mounting hardware, spring clamps and cable ties
• Installation guide

Not included: Fuel Manager water alarm (FMALARM). Available separately.

Mounts between the tank and the factory filter and pulls water and particles out of the fuel before they reach the injection system.

• 95% water separation with superior particle removal.
• Separates emulsified water from ULSD.
• Clear bowl: you can see collected water and drain it.
• No filter bypass, so contaminated fuel does not get through.
• Protects against corrosion and abrasive wear in the pump and injectors.
• Optional water alarm (FMALARM) available separately.

Separates oil and air from crankcase blow-by gas and keeps it out of the intake, with the option to return the oil to the sump.

• 98% oil separation efficiency.
• Keeps oil and soot out of the intake, intercooler and turbo.
• Regulates crankcase pressure.
• Reduces oil consumption where the oil is returned to the sump.
• Reduces exhaust smoke and odours.

• Isuzu D-MAX, 4JJ3-TCX 3.0L 4-cylinder turbo diesel, 2020 onwards
• Isuzu MU-X, 4JJ3-TCX 3.0L 4-cylinder turbo diesel, 2020 onwards
• Mazda BT-50, 4JJ3-TCX 3.0L 4-cylinder turbo diesel, 2020 onwards

Not for the 4JJ1. 2012 to 2020 D-MAX and 2013 to 2020 MU-X with the 4JJ1 use a different Direction Plus kit, listed separately.

Fitment per Direction Plus as of October 2026. Check the fitment guide or send us your VIN if unsure.

Vehicle-specific brackets, hoses and hardware are supplied and installation guides are available from Direction Plus. We recommend fitting by a competent mechanic. The two systems can be fitted together or separately.

• Fuel Manager: drain the clear bowl when water collects, replace the 30 micron element (31863) at your service interval.
• ProVent: check and drain the catch can regularly, replace the element (PVE200DP) at your service interval.

• Free express shipping Australia-wide.
• Pay in full or split it with Afterpay, Humm, Klarna or Zip at checkout.
• Tracking is sent as soon as the kit is on its way.
• Returns and warranty are handled under our refund policy.

Q: Will this kit fit all 4JJ3 models?
A: It is made for the Isuzu D-MAX and MU-X and Mazda BT-50 with the 4JJ3-TCX 3.0L from 2020 onwards. Brackets and fittings are vehicle-specific.

Q: Does the kit need cutting or custom work?
A: No. Brackets are vehicle-specific and use factory mounting points.

Q: Can I buy the two systems separately?
A: Yes. The Fuel Manager and ProVent kits are listed individually. The combo gets you both in one order.

Q: Why do I need both?
A: They protect different things. The pre-filter keeps water and dirt out of the injection system. The catch can keeps oil and soot out of the intake, intercooler, EGR and turbo.

Q: Does the Fuel Manager have a water alarm?
A: Not in the box. The FMALARM water alarm is a separate accessory and gives a visual and audible warning when water is detected.

Q: Does the ProVent return oil to the sump?
A: The ProVent collects oil in the can and you drain it through the tap. It can be plumbed to return oil to the sump if you prefer.