Nissan Patrol TD42 4.2L Diesel Cylinder Heads & Engine Parts

Looking for a premium aftermarket replacement Nissan TD42 4.2L diesel cylinder head? We supply brand-new complete heads, gasket sets, and internal engine components from premium Australian stock with rapid nationwide delivery.

The Nissan Patrol TD42 4.2L naturally aspirated and turbo diesel inline-six engine (GQ & GU Patrol) is arguably Australia’s most famous old-school diesel plant, but extreme thermal loading under high turbo boost can crack pre-combustion chambers or cause localised head warpage. Common symptoms of a failed TD42 head include bubbles in the radiator neck, water being pushed into the expansion bottle, or rapid overheating when towing.

Why Choose Midland Cylinder Heads?

Australian-Assembled Quality: Our licensed technicians build and inspect every brand-new cylinder head to strict OEM specifications, with all valve depths pre-set during assembly.
Thickest MLS Gaskets: Our kits feature high-grade, thick multi-layer steel (MLS) head gaskets engineered to handle block-surface variations, ensure maximum clearance, and provide a perfect compression seal.
Included Torque Specs: Every order includes the correct tightening sequence and torque specifications for a perfect installation.
12-Month Warranty: Drive with peace of mind with our 12-month, unlimited-kilometre warranty on all parts.
Fast Dispatch & No Core Exchange: Units are sold completely outright (no need to send your old head back) with fast dispatch from our Perth and Melbourne hubs.

Our Parts Summary

Brand-New Assembled Cylinder Head: Premium replacement unit with brand-new valves and valve springs, professionally fitted and vacuum-tested.
Premium Head Gasket Set with Bolts: Comprehensive thickest-grade multi-layer steel (MLS) head gasket set with all required seals, pre-chambers, and fresh Torque-to-Yield (TTY) stretch bolts.

For technical help or to check stock on TD42 components, call John directly on 0406 611 288. Please note we are parts specialists only—we do not provide mechanical vehicle fitting.

Browse TD42 4.2L Parts

Nissan Patrol TD42 4.2L Diesel Cylinder Head and Gasket Set
Cylinder Head Machining – Professional Resurfacing Expert cylinder head resurfacing in our Perth workshop. Precision machining to restore your cylinder head’s sealing surface—essential for proper head gasket sealing and engine performance. When we machine or surface the head, the valves may come closer to the face and potentially collide with the pistons. If the valve depth is not within specification, we may be unable to machine the face without reseating the valves and performing a complete service. Precision machining – restores flat sealing surface. Professional service – experienced technicians Perth workshop – pickup available in Midland From $176.00 AUD Call us to discuss your cylinder head machining needs. Need a complete rebuild? See our TD42 Head Gasket Set with Bolts or full reconditioning service below.
Cylinder Head Reconditioning – Complete Rebuild Service Full cylinder head reconditioning in our Perth workshop. Complete rebuild service including machining, valve work, and pressure testing—restore your cylinder head to OEM specifications. Complete rebuild – machining, valve work, crack testing Expert technicians – quality workmanship guaranteed Perth workshop – pickup available in Midland From $880.00 AUD Call us to discuss your cylinder head reconditioning needs. Prefer a new head? See our Bare or Assembled Cylinder Heads below.
Assembled Cylinder Head – Non-Turbo Precision-cast – with valves and valve springs fitted Without Gasket Set or Bolts – $1,610.00 AUD With Gasket Set and Bolts – $1,860.00 AUD Available for phone orders. Also available separately: TD42 Head Gasket Set with Bolts \| Bare Cylinder Head (Non-Turbo)
Assembled Cylinder Head – Turbo Precision-cast – with valves and valve springs fitted Without Gasket Set or Bolts – $1,880.00 AUD With Gasket Set and Bolts – $2,090.00 AUD Available for phone orders. Also available separately: TD42T Head Gasket Set with Bolts \| Bare Cylinder Head (Turbo)

Nissan Patrol TD42 4.2L Diesel Cylinder Head and Gasket Set

Cylinder Head Machining – Professional Resurfacing

Machine the face of your cylinder head

Expert cylinder head resurfacing in our Perth workshop. Precision machining to restore your cylinder head’s sealing surface—essential for proper head gasket sealing and engine performance. When we machine or surface the head, the valves may come closer to the face and potentially collide with the pistons. If the valve depth is not within specification, we may be unable to machine the face without reseating the valves and performing a complete service.

Precision machining – restores flat sealing surface.
Professional service – experienced technicians
Perth workshop – pickup available in Midland

From $176.00 AUD

Call us to discuss your cylinder head machining needs.

Need a complete rebuild? See our TD42 Head Gasket Set with Bolts or full reconditioning service below.

Cylinder Head Reconditioning – Complete Rebuild Service

Recondition your nissan patrol td42 4. 2l diesel cylinder head

Full cylinder head reconditioning in our Perth workshop. Complete rebuild service including machining, valve work, and pressure testing—restore your cylinder head to OEM specifications.