RYCO OIL FILTER ( SPIN ON ) Z668

RYCO DIESEL FUEL FILTER - (SPIN-ON) Z668

Engineered for superior fuel system protection in light and medium-duty commercial vehicles, the Ryco Z668 Spin-On Diesel Fuel Filter delivers high-efficiency filtration for a comprehensive range of Isuzu trucks and Nissan Atlas models. Designed specifically for Isuzu's proven 4HK1, 4JH1-TC, and 4JB1 series diesel engines, this filter provides dependable protection for commercial fleet operators and owner-drivers alike.

The Z668 features premium internal components that resist clogging, ensuring consistent fuel flow and sustained fuel system performance across extended service intervals. Its spin-on design allows for quick, hassle-free replacement, minimising downtime for fleet operators and maintenance workshops.

With an ultra-fine 4-micron filtration rating, this filter delivers exceptional contaminant capture—effectively trapping abrasive particles, water, and other harmful contaminants that can cause premature wear and failure of injectors, pumps, and other critical fuel system components. This level of filtration precision is critical for maintaining fuel system efficiency, reducing component wear, and extending the service life of expensive diesel fuel systems. Manufactured to meet or exceed original equipment manufacturer (OEM) standards, the Z668 also supports new-vehicle warranty protection when fitted according to manufacturer recommendations.

Whether you're maintaining an Isuzu Elf, N-Series, or Forward truck, or a Nissan Atlas, the Ryco Z668 is the professional's choice for dependable, long-lasting diesel fuel system protection.

Key Features

• Spin-on design – enables fast, tool-efficient filter changes

• Ultra-fine 4-micron filtration – delivers exceptional contaminant capture for diesel fuel systems

• Water separation capability – protects fuel system from water contamination

• Clog-resistant internal components – extend service life and reduce maintenance frequency

• Efficient fuel flow – supports optimal fuel system performance

• OEM-equivalent or better – meets strict manufacturer specifications for fit and performance

• Warranty compliant – protects new vehicle warranty when replaced at recommended intervals

• Durable construction – built to withstand high-pressure fuel system operating environments

Technical Specifications

Extensive Vehicle Coverage

Fits Selected Isuzu Elf / N-Series Models

4HK1 Series (5.2L)

• N1R75 / NPR / NPR200 / NPR250 / NPR300 / NPR400 / NPR450 / NQR450 – 5.2L 4HK1-TCS / 4HK1-TCN / 4HK1 diesel – platform/chassis & truck tractors (4x2 & 4x4) [2000–2015]

• NPS75 / NPS250 / NPS300 – 5.2L 4HK1 diesel – platform/chassis (4x4) [2005–on]

• Forward F FSR90 – 5.2L 4HK1 diesel – platform/chassis (4x2) [2007–2014]

4JH1-TC Series (3.0L)

• NKR200 / NKR250 / NKR300 / NKR77 – 3.0L 4JH1-TC / 4JH1-X Euro 3 turbo diesel, 96kW – platform/chassis & truck tractors (4x2) [2000–2008]

4JB1 Series (2.8L)

• Elf 150 – 2.8L 4JB1 OHV 8v diesel, 42kW – platform/chassis (5.5 Ton, 4x2) [1985–2003]

Fits Selected Nissan Atlas Models

• AKR69 – 3.1L 4JG2-T diesel – cab/chassis (RWD) [1995–2002]

Why Choose Ryco?

With over 85 years of Australian engineering excellence, Ryco is a trusted name in filtration across passenger, commercial, and heavy-duty sectors. Every Ryco filter is rigorously tested to meet or exceed ISO and SAE international standards, ensuring consistent quality and performance. The Z668 continues this legacy—delivering the durability, efficiency, and protection that Isuzu and Nissan fleet operators and mechanics rely on, kilometre after kilometre.

Every order at TINKR promises fast shipping to your door, anywhere in New Zealand. Within 1-3 business days. Courier pickups Monday - Friday. Excluding public holidays.

Our standard delivery requires a signature upon receipt, however type any delivery instructions in the box provided during the TINKR check out on how you want your order delivered. For example, No signature required or leave on front porch etc.

While it is possible for many Auckland orders to be delivered the same day, delivery estimates are; North Island - Overnight. South Island and Rural - extra 1-2 days