What is the GT30R Turbine Housing Kit 740902-0029?

It is a GT30R Turbine Housing Kit with a 0.83 A/R, a divided T3 inlet flange and a V-band outlet, listed by Turn 14 in Ni-Resist. Garrett does not show this part number in its current GT30 turbine kit tables, so the published detail is limited to those configuration points.

Why choose a divided T3 inlet?

A divided inlet keeps exhaust pulses from paired cylinders separate until they reach the turbine wheel. With a matching twin-scroll T3 manifold, that usually improves boost response compared with an open inlet. On a single-entry manifold the divider brings no benefit, and an undivided housing is the better match.

What does Ni-Resist mean for this housing?

Ni-Resist is a high-nickel cast iron used for turbine housings because it handles heat and resists scaling better than standard grey cast iron. Turn 14 lists this housing in Ni-Resist. Garrett publishes no temperature rating for it, so treat the material as a durability gain rather than a stated limit.

Does this housing have an internal wastegate?

Garrett does not publish the wastegate arrangement for part 740902-0029, and the Turn 14 description names only the inlet, outlet, A/R and material. The GT30 housings with V-band outlets in the current Garrett tables are free float, but confirm this part before planning boost control.

Is it the same as the 0.83 A/R V-band GT30 housing?

No. Garrett lists a 0.83 A/R GT30 housing with a V-band inlet, part 740902-0035, which is undivided. This part has a divided T3 inlet instead, so it suits a different manifold. The A/R is the same, but the two are not interchangeable on the same manifold.

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Description

Garrett GT30R Turbine Housing Kit, 0.83 A/R Divided T3 Inlet, V-Band Outlet

Garrett’s GT30R Turbine Housing Kit in 0.83 A/R pairs a divided T3 inlet with a V-band outlet, and Turn 14 lists it in Ni-Resist rather than standard cast iron. The divided inlet is the reason to buy it: on a twin-scroll T3 manifold it keeps the two exhaust streams apart up to the turbine, which helps a GT30 frame turbocharger respond. On a single-entry manifold that advantage disappears, and an undivided GT30 housing is the simpler fit. Garrett does not list this part number in its current GT30 turbine kit tables, so this listing sticks to what the part number and supplier confirm.

Features

Divided T3 inlet for a twin-scroll T3 manifold
V-band outlet for a clamped downpipe joint
0.83 A/R, the middle of the A/R sizes Garrett offers across its GT30 housings
Ni-Resist construction, per the Turn 14 listing for this GT30R Turbine Housing Kit

Applications

The GT30R Turbine Housing Kit is not vehicle specific. Fitment details from the sources available:

Turbine frame: GT30R, per the Turn 14 listing
Inlet and outlet: Divided T3 inlet, V-band outlet
Garrett table status: Not shown in the current Garrett GT30 turbine kit tables

Notes

Turbine housing only; a GT30 frame super core is sold separately
Garrett does not publish wastegate arrangement, rotation or contents for this part number, so confirm compatibility with your core before ordering
Garrett lists undivided GT30 housings for GT and GTX 30 series cores, including the 0.83 A/R V-band inlet version

Frequently Asked Questions

What is the GT30R Turbine Housing Kit 740902-0029? It is a GT30R Turbine Housing Kit with a 0.83 A/R, a divided T3 inlet flange and a V-band outlet, listed by Turn 14 in Ni-Resist. Garrett does not show this part number in its current GT30 turbine kit tables, so the published detail is limited to those configuration points.
Why choose a divided T3 inlet? A divided inlet keeps exhaust pulses from paired cylinders separate until they reach the turbine wheel. With a matching twin-scroll T3 manifold, that usually improves boost response compared with an open inlet. On a single-entry manifold the divider brings no benefit, and an undivided housing is the better match.
What does Ni-Resist mean for this housing? Ni-Resist is a high-nickel cast iron used for turbine housings because it handles heat and resists scaling better than standard grey cast iron. Turn 14 lists this housing in Ni-Resist. Garrett publishes no temperature rating for it, so treat the material as a durability gain rather than a stated limit.
Does this housing have an internal wastegate? Garrett does not publish the wastegate arrangement for part 740902-0029, and the Turn 14 description names only the inlet, outlet, A/R and material. The GT30 housings with V-band outlets in the current Garrett tables are free float, but confirm this part before planning boost control.
Is it the same as the 0.83 A/R V-band GT30 housing? No. Garrett lists a 0.83 A/R GT30 housing with a V-band inlet, part 740902-0035, which is undivided. This part has a divided T3 inlet instead, so it suits a different manifold. The A/R is the same, but the two are not interchangeable on the same manifold.

About Garrett

Garrett Motion has turbocharged engines since 1955, when its T15 was matched to the Caterpillar D9 crawler, and in 1962 a Garrett turbocharger went into the Oldsmobile Jetfire Turbo Rocket, the first turbocharged production car. Garrett has supplied turbocharging in Formula 1 with Scuderia Ferrari, the FIA World Rally Championship and the 24 Hours of Le Mans. It has operated as a stand-alone company since 2018, and its technology is fitted to around 150 million vehicles worldwide.

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BP Pricing Difference

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Garrett GT30R Turbine Housing Kit, 0.83 A/R Divided T3 Inlet, V-Band Outlet [740902-0029]

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Garrett GT30R Turbine Housing Kit, 0.83 A/R Divided T3 Inlet, V-Band Outlet

Features

Applications

Notes

Frequently Asked Questions

About Garrett

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