What is the recommended spark plug gap for a Toyota Hilux 2.7

Most modern spark plugs are pre-gapped. As long as you have the correct plugs for that vehicle and you have not changed the gap, you can fit them straight out of the box without setting the gap.

The gap is .040 and is pretty much a standard gap.

I'd use the type spark plug recommended by your owners manual, the manual may also give you the gap. There may be a decal under your hood that gives this info. Anywhere you buy sparks will have the gap in the info. For one ngk plug I looked at, it said .043in gap.

Different spark plugs manufacturers may have different gap recommendations.

Obtain manufacturer recommended spark plugs for your vehicle with proper gap (.044 from toyota forum)
3/8 drive ratchet with extension and spark plug socket.
Only perform spark plug change on a COLD engine.
Remove one spark plug boot at a time, so as not to confuse wire location.
Remove spark plug number 1 and replace with new one, recommended torque is 150 inch/lbs from toyota forum, but if you don't have a torque wrench, just snug them up good, don't overtighten.
Same procedure 2,3 and 4 cylinders

1992 Toyota Truck Pickup 4WD 3.0L FI 6cyl

The Spark Plug Gap

.032 (In thousandths of an inch)Caution! Gap is not adjustable on certain plug brands

The correct spark plug gap for the 1.5 litre engine is .032"

on adjustable plugs its .032

.032 is the correct gap. countrycurt0

the spark plugs wires are directly located on top of the engine and the spark plugs are down inside the holes in the valve cover itself. I believe there are also 2 coils on top of the engine, which hide two of the spark plug wires which are attached directly to the underside of each coil, remove the coil pull it upward carefully and you will find the spark plugs for those two in the hole underneath the coil for each one. If you decide to replace the plugs, make sure to check the spark plug gap even if they tell you they are pre-gapped as pre-gapped spark plugs are usually gapped for more than one particular car and it may be incorrectly gapped for your specific vehicle. If you decide to also replace the spark plug wires, you will have to purchase the spark plug wires for the underside of each coil seperately because most local auto parts stores only sell 2 spark plug wires in the set that go onto the non-coil attached wires and plugs, and you have to purchase the coil spark plug wires seperately. So all in all you should have 4 spark plug wires, 2 that attach directly underneath the 2 coils, then 2 regular type wires that run to the other spark plugs. If you look at the valve cover and see the wires, you will see what i am saying better. Just don't forget to ask the autoparts store the spark plug gap recommended for you car, and adjust the gap on the plugs as needed. good luck.
Bren H.