Nissan YS23 / M9T 2.3L Cylinder Heads & Engine Parts (2015–Present)

Looking for a premium aftermarket replacement Nissan YS23 2.3L turbo diesel cylinder head? We supply brand-new complete heads, gasket sets, and internal engine components from premium Australian stock with rapid nationwide delivery.

The modern Nissan YS23 2.3L engine (NP300, D23 Navara) is highly efficient, but severe cooling failures or injector issues can warp or crack the head casting. Common symptoms of a failed YS23 head include unexplained coolant drop, a rock-hard cooling system hose, or consistent bubbling in the expansion tank.

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 multi-layer steel (MLS) head gaskets engineered to ensure maximum clearance and perfect compression sealing.
• 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 thick-grade multi-layer steel (MLS) head gasket set with all required seals, washers, and fresh Torque-to-Yield (TTY) stretch bolts.

If you need technical help or want to check stock on your 2.3L NP300 build, call John directly on 0406 611 288. Please note we are parts specialists only—we do not provide mechanical vehicle fitting.

Browse YS23 2.3L Parts

Navara NP300 with the YS23DDTT engines from 2015 onwards.
This cylinder head is brand new and has already been installed with valves, springs, and retainers. It also includes the VRS gasket set and a set of Head Bolts. (Does NOT include Cams, rockers, or Lifters) $1,990.00 Order online or by phone. Arrange pick-up from Perth (Midland) or fast dispatch from Melbourne.
This is a fully assembled cylinder head kit. The kit includes a new cylinder head with valves, springs, and retainers installed. It also has a VRS head gasket set, head bolts, two new camshafts, rockers, and lifters. $2435.00 Order online or by phone. Arrange pick-up from Perth (Midland) or fast dispatch from Melbourne.
YS23 DDTT Vrs Head Gasket Set Consists of the head gasket, manifold gaskets, valve stem seals, rocker cover gaskets, other small gaskets required, and head bolts. $270.00 Order online or by phone. Arrange pick-up from Perth (Midland) or fast dispatch from Melbourne.
Navara NP300 YS23 Camshaft rocker arm. $32.00 ea Available for phone orders. Fast dispatch from Melbourne.
Navara NP300 YS23 hydraulic lifter. $32.00 ea Available for phone orders. Fast dispatch from Melbourne.