Toyota Pistons - Toyota Hilux N70 KUN26R/KUN16R 3.0L 1KD-FTV D4D 2005-2015

Toyota pistons for the 3.0L 1KD-FTV D4D, supplied as a matched set of four with pins and circlips.

Choose your bore size, and choose whether you want them as Toyota supplies them or machined in our workshop.

Why we offer a delipped piston

The 1KD-FTV runs a bowl-in-piston combustion chamber at 17.9:1. Where the bowl meets the crown there is a sharp lip, and that edge is the hottest, thinnest, least supported part of the piston. It is a stress concentration in a component that sees a full heat cycle every time the engine is worked hard, and it is where crown cracks start typically on engines that have been towing, tuned, or run with elevated EGTs.

Our delipping operation machines a generous radius onto that edge and deburrs the bowl. Removing the stress riser gives the crown somewhere to move as it expands instead of concentrating the load into a sharp corner. The work is done in-house on genuine Toyota pistons, dimensionally checked, and the set is weight-matched before it ships. Combustion bowl volume and compression height are left alone, so your compression ratio and injector spray pattern are unchanged.

If you are rebuilding a stock engine that will stay stock, the unmodified genuine pistons are the right buy. If you are rebuilding behind a turbo upgrade, a tune, or a truck that tows for a living, the delipped set is cheap insurance.

Engine specifications

What you receive

• 4 × Toyota piston
• 4 × piston pin
• 8 × circlips

Piston rings, big end bearings and gaskets are not included and are ordered separately ring end gap and bearing clearance depend on how your block and crank measure up after machining.

part numbers

Delipped sets are these same part numbers, machined by GTurbo after supply.

Fitment

Toyota Hilux N70, KUN26R (4WD) and KUN16R (4x2), 3.0L 1KD-FTV, 2005–2015. The same piston is used across the wider 1KD-FTV family — Prado KDJ120/150, Fortuner, HiAce and Hilux 

Choosing your bore size

Order standard size if the bores are within specification and only need honing. Order +0.50 mm if the block has been bored oversize, or is going to be. If you are not sure, measure the bores or have your machine shop measure them before ordering — we cannot accept returns on machined pistons.

Fitting notes

Pistons are directional. The 1KD-FTV crown is asymmetric and the valve pockets must face the head correctly, check the mark on the crown against the front of the engine. Pin fit is a light press. Torque the rods to Toyota specification with new bolts; the 1KD uses a torque-plus-angle sequence and the bolts are single-use.

Built and machined in Australia. GTurbo has been building diesel performance for over 13 years.