Cylinder Head Supply
Nissan Patrol GQ GU TB42 4.2L Cylinder Head Assembled
Nissan Patrol GQ GU TB42 4.2L Cylinder Head Assembled
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TB42 Assembled Cylinder Head — Head Only
Brand-new assembled TB42 cylinder head for Nissan Patrol GQ and GU with 4.2L 6-cylinder petrol engine. Supplied with valves, springs, retainers and seals fitted. Professionally assembled and pressure tested. Gasket set and head bolts not included — ideal if you have already purchased these separately.
Fits: Nissan Patrol GQ, GU (1987–1997) — Engine code TB42, 4.2L 6-cylinder petrol. Also suits Ford Maverick with TB42 engine.
Important: This listing is the assembled head only — no gasket set or head bolts included. If you need the complete kit with gasket set and bolts, see our TB42 Complete Cylinder Head. The TB42 is an OHV pushrod engine — the camshaft and rocker gear are located in the engine block and are not part of this head.
What's Included:
- Brand new assembled cylinder head casting
- Valves, springs, retainers & seals fitted
- ✓ Free Delivery: Available to most Australian addresses — Perth pickup also available
Key Specifications:
- Engine Code: TB42 — 4.2L 6-cylinder petrol
- Valve configuration: 12-valve OHV (pushrod)
- Type: Premium aftermarket replacement — no core exchange required
- Gasket set: Not included — available separately
- Head bolts: Not included — available separately
- Quality: Premium aftermarket
- ✓ Warranty: 12 months
Compatibility Guide
Guide only — please contact us if you are unsure.
- 1987–1997: Nissan Patrol GQ with 4.2L 6-cylinder petrol, engine code TB42
- 1987–1997: Nissan Patrol GU with 4.2L 6-cylinder petrol, engine code TB42
A popular rebuild option for Patrol owners who have already sourced their gasket set and bolts — no need to double up on parts you already have.
Order online or by phone. Pickup available in Perth (Midland) or fast dispatch from Melbourne.
Related products: TB42 Complete Cylinder Head with Gaskets & Bolts | TB42 Head Gasket Set with Bolts | Browse all Nissan TB42 Parts
Fitment & Product FAQ
Are the cylinder heads supplied assembled?
Most are supplied assembled, with the camshaft, valves, springs and seals already fitted so they are ready for installation. Some applications require the original camshaft and rocker gear to be transferred across. Confirm the details in the ‘What’s Included’ section for the product you are viewing.
What will I receive with my order?
The contents vary by application. Most complete cylinder-head kits include the assembled head, a VRS gasket set and new head bolts. Some products require reuse of the original camshaft and rockers. For engines using an MLS gasket, we supply the thickest available specification. Gasket-set-only products include the head gasket, manifold gaskets, valve stem seals, rocker cover gasket, head bolts and required O-rings. Check the product’s ‘What’s Included’ section for the exact contents.
What warranty is included?
Every cylinder head includes a 12-month warranty against manufacturing defects. We carefully select our heads and stand behind the quality supplied.
How can I confirm it fits my vehicle?
Use the ‘Fits’ section to check the compatible make, model, year and engine code. If you are still unsure, send us your VIN before ordering and we can confirm the application.
How quickly will my order arrive?
Orders are dispatched from Perth or Melbourne. Most deliveries arrive within 2–5 business days, with express delivery available at checkout.
Does the head need machining before installation?
No. Our cylinder heads are manufactured to OEM specifications and are supplied ready to fit, so machining should not be required before installation.