Nissan Patrol TB45 4.5L Petrol Cylinder Heads & Engine Parts

Looking for a premium aftermarket replacement Nissan TB45 4.5L petrol cylinder head? We supply brand-new complete heads, gasket sets, and internal engine components from premium Australian stock with rapid nationwide delivery.

The Nissan TB45 4.5L overhead-valve engine (GU Patrol) is an incredibly robust motor, but severe cooling system neglect or demanding towing can compromise the cylinder head seal. Common symptoms of a failed TB45 head include unexplained drop in coolant levels, excessively high pressure in the radiator hoses, or a distinct rough running cycle on cold morning startups.

Why Choose Midland Cylinder Heads?

  • Australian-Assembled Quality: Every brand-new cylinder head is built and inspected to strict OEM specifications by our licensed technicians, with all valve depths pre-set during assembly.
  • Premium Standard-Thickness MLS Gaskets: Our kits feature high-grade, standard-thickness multi-layer steel (MLS) head gaskets engineered to preserve exact factory compression parameters and ensure perfect sealing across the block surface.
  • Included Torque Specs: We include correct tightening sequences and torque specifications with every order to ensure 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 supplied with brand new valves and valve springs professionally fitted and vacuum-tested.
  • Premium Head Gasket Set with Bolts: Comprehensive standard-thickness multi-layer steel (MLS) head gasket set with all required seals, O-rings, and fresh Torque-to-Yield (TTY) stretch bolts.

If you need technical help or want to check stock on TB45 4.5L components, call John directly on 0406 611 288. Please note we are parts specialists only—we do not provide mechanical vehicle fitting.

Browse TB45 4.5L Parts

Nissan Patrol TB45 4.5 Ltr Petrol Engine
Machine the face of your cylinder head We can machine the head face in our workshop.

From $196.00

Call us now, we can machine the head face in our workshop.

 
We-can-recondition-your-cylinder-head-in-our-workshop Recondition your cylinder head.
If your cylinder head has failed, bring it to us, and we will inspect it and provide a repair quote.

From $495.00

Call us now, we can recondtion your head in our workshop.
Tb45 bare cylinder head
New TB45 bare cylinder head

Order by phone. Fast dispatch from Melbourne.

$1070.00

Call us now, new bare tb45 cylinder head
New assembled cylinder head kit with head gasket set and bolts.
New assembled cylinder head kit with head gasket set and bolts.

Order online or by phone. Fast dispatch from Melbourne.

$1690.00Buy now, new assembled tb45 cylinder head
Nissan tb45 vrs head gasket set with head bolts
TB45 Vrs Head Gasket Set with head bolts

Order online or by phone. Fast dispatch from Melbourne.

$390.00

Buy now, nissan patrol tb45 vrs gasket set with head bolts