Is the 1.15 A/R G42 Turbine Housing Kit right for a 5.0L engine?

It usually is. The 1.15 A/R G42 Turbine Housing Kit sits between the 1.01 and 1.28 sizes, which suits mid-size engines on a twin-scroll manifold that want strong midrange without choking the top end. Check the choice against the Garrett turbine flow chart for the chosen core.

What horsepower do the G42 cores support?

Garrett ratings run from 475 horsepower up to 1200 for the G42-1200, 1325 for the G42-1325, 1400 for the GXR42-68, 1450 for the G42-1450 and GXR42-72, and 1585 for the G42-1585. Garrett derives these from compressor choke flow as potential flywheel horsepower.

Will a G-Series II G42 core fit this housing?

Yes. Garrett states that G-Series II uses the first-generation compressor and turbine housings, and lists this housing for the G42-1325, G42-1325C and G42-1585. An owner of a G42-1200 or G42-1450 can fit a G-Series II CHRA and keep the housing.

Is the housing stainless steel?

Yes. Garrett lists stainless steel turbine housings for the G42 in T4 and V-band connections, and rates the housings used on its G-Series II G42 cores up to 1050C, or 1922F. That material holds up to sustained heat better than cast iron.

Is a super core included with this kit?

No. The kit is the turbine housing only. The center section, rotating assembly and compressor housing come as a separate G42, G-Series II or GXR42 super core, so the builder chooses the compressor and the turbine housing size independently and can change either one later.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

Garrett G42 Turbine Housing Kit, 1.15 A/R T4 Divided Inlet V-Band Outlet

Garrett’s G42 Turbine Housing Kit at 1.15 A/R is the middle size in the G42 twin-scroll range: a stainless steel housing with a divided T4 inlet, a V-band outlet and an external wastegate layout. It fits the nine G42, G-Series II G42 and GXR42 cores Garrett lists, whose ratings run from 475 to 1585 horsepower. For most twin-scroll engines in the 4.0L to 6.0L bracket, or a smaller engine at high boost, this is the sensible place to start. It gives up some response to the 1.01, and an internally gated setup cannot use it at all.

Features

T4 twin-scroll inlet and V-band outlet in stainless steel
No internal wastegate; an external gate controls boost
Middle of three A/R sizes in the G42 Turbine Housing Kit range

Specifications

Garrett part number: 757707-0015
A/R: 1.15
Turbine inlet and outlet: T4 divided and V-band
Divided inlet: Yes
Wastegate: External (free float)
Material: Stainless steel
Matching turbine wheel: 82mm inducer and 75mm exducer

Applications

This G42 Turbine Housing Kit fits these Garrett cores:

Garrett G42-1200: 860778-5004S super core, full-size compressor housing
Garrett G42-1200 Compact: 860778-5002S super core
Garrett G42-1325 G-Series II: 938339-5002S super core, 938338-5002S CHRA
Garrett G42-1325C Compact G-Series II: 938339-5001S super core, 938338-5001S CHRA
Garrett G42-1450: 860778-5006S super core
Garrett G42-1585 G-Series II: 938339-5003S super core, 938338-5003S CHRA
Garrett GXR42-68 G-XRace: 934173-5001S super core
Garrett GXR42-71 G-XRace: 952766-5006S super core
Garrett GXR42-72 G-XRace: 934173-5002S super core

Notes

An external wastegate is required, because this housing has no internal wastegate
The G42 or GXR42 super core is sold separately
Garrett publishes a maximum turbocharger speed for each core, from 109,000 rpm on the GXR42-68 and GXR42-72 to 120,000 rpm on the G-Series II cores and the GXR42-71; running above it is at the owner’s risk
Other A/R sizes and V-band inlet versions are under G42 turbine housings
Garrett does not publish a hardware list for this kit; confirm clamps and gaskets before ordering

Frequently Asked Questions

Is the 1.15 A/R G42 Turbine Housing Kit right for a 5.0L engine? It usually is. The 1.15 A/R G42 Turbine Housing Kit sits between the 1.01 and 1.28 sizes, which suits mid-size engines on a twin-scroll manifold that want strong midrange without choking the top end. Check the choice against the Garrett turbine flow chart for the chosen core.
What horsepower do the G42 cores support? Garrett ratings run from 475 horsepower up to 1200 for the G42-1200, 1325 for the G42-1325, 1400 for the GXR42-68, 1450 for the G42-1450 and GXR42-72, and 1585 for the G42-1585. Garrett derives these from compressor choke flow as potential flywheel horsepower.
Will a G-Series II G42 core fit this housing? Yes. Garrett states that G-Series II uses the first-generation compressor and turbine housings, and lists this housing for the G42-1325, G42-1325C and G42-1585. An owner of a G42-1200 or G42-1450 can fit a G-Series II CHRA and keep the housing.
Is the housing stainless steel? Yes. Garrett lists stainless steel turbine housings for the G42 in T4 and V-band connections, and rates the housings used on its G-Series II G42 cores up to 1050C, or 1922F. That material holds up to sustained heat better than cast iron.
Is a super core included with this kit? No. The kit is the turbine housing only. The center section, rotating assembly and compressor housing come as a separate G42, G-Series II or GXR42 super core, so the builder chooses the compressor and the turbine housing size independently and can change either one later.

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.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

Garrett G42 Turbine Housing Kit, 1.15 A/R T4 Divided Inlet V-Band Outlet [757707-0015]

Guaranteed Safe Checkout

Garrett G42 Turbine Housing Kit, 1.15 A/R T4 Divided Inlet V-Band Outlet

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Garrett

Reviews