Xtreme Outback Stage 2 Heavy Duty Sprung Ceramic Clutch Kit for Toyota Land Cruiser 80 – 275mm – 4.2L, 1990-1997, 21 Spline, Step +0.5

Xtreme Outback heavy duty sprung ceramic clutch kit for the vehicle and transmission variants listed below. The ceramic friction design is intended for demanding performance or motorsport use and can give a more abrupt engagement than an organic road clutch.

Technical specifications

Brand	Xtreme Outback
Manufacturer part number	KTY28005-1B
Product	Clutch Kit
Stage	Stage 2
Construction / duty	Heavy Duty; Sprung Ceramic
Supplier-stated clamping load	900Kg
Flywheel step (mm)	+0.5
Clutch disc diameter (mm)	275
Disc spline count	21
Disc spline diameter (mm)	29,8
Clutch design	Single Plate Sprung Ceramic Disc – high torque capacity, increased heat resistance and aggresive clutch engagement for more performance-oriented applications.
Flywheel compatibility / inclusion	Not included
Supplier shipping weight (kg)	13.33

The clamping load describes the clutch pressure plate specification. It is not a vehicle payload, gross vehicle mass or towing rating.

Listed kit contents

• Pressure plate
• Clutch disc
• Release bearing
• Alignment tool
• Spigot bearing

Contents are application specific. Use the list above when checking flywheel, bearing and hydraulic requirements.

Motorsport use: Ceramic clutches prioritise heat and torque capacity. Confirm that the engagement characteristics suit the vehicle and its intended use.

Vehicle fitment

Fits only the variants and restrictions shown below. Model names and years alone are not enough: check the engine, gearbox, spline specification and any conversion requirements against the vehicle before ordering.

Make	Model / series	Variant	Years	Engine / application detail	Gearbox / fitting restrictions
Toyota	Land Cruiser 80	4.2 D (HZJ80)	1990.01-1997.12	1H-Z 4164 Diesel 94 kW 128 BHP (1990.01 – 1997.12)
Toyota	Land Cruiser 80	4.2 D (HZJ80. HZJ81)	1990.01-1997.12	1H-Z 4164 Diesel 99 kW 135 BHP (1990.01 – 1997.12)

How to Bed-In a Clutch

Bedding-In a new clutch is vital to ensure that the clutch operates effectively and to help long-term durability.

Failure to correctly bed-in the new clutch can cause a wide range of clutch failures including shudder, therefore it is critical to take the time to complete this process.

TIPS FOR BEDDING-IN YOUR NEW CLUTCH

• Drive the Vehicle Gently for the first 1000 km
• Avoid Launching the Vehicle Aggressively
• Low RPM Engagements in Stop Start Traffic are Best for Bedding-In the Friction Material

CERAMIC MOTORSPORT APPLICATIONS

In Motorsport applications where street driving is not possible, it is important that a progressive degree of mechanical sympathy is used to assist with bedding-in the friction material to the steel surfaces. It is recommended that the friction point is modulated around a workshop and pit area at low engine RPM as much as possible. If the vehicle is being used in an event it is important to use warmup sessions to progressively increase the aggressiveness of driving. Being too aggressive with the clutch too soon after installation can cause slipping, localised thermal overloading and result in welding of the friction material.

DO YOU HAVE A SINGLE-MASS FLYWHEEL CONVERSION KIT?

When fitting a single mass flywheel replacement clutch package in certain vehicles, there may be an increase in transferred harmonic noises from the engine to the gearbox. This may present itself as increased rollover noise from the transmission at idle or increased harmonics in labouring conditions. These transmitted noises in no way effect the performance of the clutch or vehicle. Whilst every effort is made to reduce these harmonics by design, in some cases additional harmonics are unavoidable.

* Please note that these noises are not a warrantable issue.

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