Parts for your 2006 Ford Territory-Head gasket

2006 Ford Territory Head Gasket — What It Does and How to Look After It

Yes — the 2006 Ford Territory does use a head gasket. The SX/SY Territory runs Ford’s 4.0‑litre Barra inline‑six petrol engine, which has an aluminium cylinder head on a cast‑iron block. Like almost every alloy‑head/iron‑block setup, it relies on a multi‑layer steel (MLS) head gasket to seal combustion, coolant and oil passages. This is documented in the Ford BA/BF Falcon & SX/SY Territory Workshop Manual and reflected in Ford’s parts catalogues (base numbers 6051 for the cylinder head gasket and 6065 for the cylinder head bolts).

The head gasket’s job is simple but critical: it keeps the fiery combustion pressures in the cylinders while preventing engine oil and coolant from mixing or leaking. When it’s healthy, the engine runs smoothly, stays cool, and holds compression. If it fails, drivers might notice overheating, loss of coolant, rough running, or contamination in the oil.

• Common symptoms of trouble: unexplained coolant loss, white exhaust steam after warm‑up, milky residue under the oil filler cap, pressurised coolant bottle soon after a cold start, misfire on start‑up, and persistent overheating.

There’s no scheduled “service” for a head gasket, but prevention is all about temperature control. Keep the cooling system in top nick: fresh, correct coolant at the recommended interval, a sound radiator cap, a working thermostat and fans, and no leaks under the bonnet. Avoid hard towing or sand work with a marginal cooling system, and never keep driving an overheating Territory — that’s how gaskets and heads get cooked.

Replacement is a proper workshop job. The cylinder head should be crack‑tested and checked for warp, skimming may be required. New torque‑to‑yield head bolts are a must, surfaces need to be squeaky clean, and the tightening sequence and angles from the Ford manual must be followed exactly. It’s also smart to renew the intake/exhaust gaskets, timing cover sealant where applicable, and fresh coolant and oil. Many techs will recommend a new thermostat and a close look at the water pump while they’re in there.

• Good practice when replacing: use an OEM‑quality MLS gasket, new head bolts, follow the factory torque sequence, pressure‑test the cooling system, bleed it carefully, and road‑test under load.

Expect labour to be the lion’s share of the cost, parts are reasonable, but time on the spanners adds up. Done right, a new gasket on a healthy Barra will give long, reliable service.

FAQs

What are the early signs of a blown head gasket on a 2006 Ford Territory?

Early clues include unexplained coolant loss, a sweet smell from the exhaust, or the coolant bottle getting hard quickly after a cold start. Drivers may also notice rough running on start‑up that clears as it warms, or the heater going cold under load.

Keep an eye out for milky residue on the oil cap, bubbles in the expansion tank with the cap off (engine cold), and temperature swings on the gauge. Any of these should prompt a proper pressure test and combustion‑gas check.

How much does a head gasket replacement typically cost in Australia or New Zealand?

Pricing varies with workshop rates and what’s found once the head is off. As a ballpark, many shops quote a multi‑day job, with labour being the major component. Machining the head, new bolts, gasket set, fluids and incidentals will be additional. If the cooling system needs attention (radiator, pump, hoses), factor that in too.

A detailed quote after inspection is the best way to avoid surprises.

Can a bottle of sealer fix a Territory head gasket?

Sealants are at best a short‑term patch for very minor seepage. They can also clog radiators and heater cores. On a Barra, proper repair means removing the head, checking it, and fitting a quality MLS gasket with new bolts using the correct torque procedure.

If the vehicle is relied on for daily duties or towing, a sealer is a risky punt and not a substitute for correct repairs.