Garrett GT30R GT35R Turbo Gasket Set

Ensure long-term turbo reliability and leak-free performance with this premium gasket set for Garrett GT30R and GT35R ball bearing turbochargers.

• One self-sealing stainless steel exhaust housing gasket
• One oil drain gasket

Crafted to exacting standards, these high-quality Garrett gaskets are engineered to maintain their form and seal integrity under extreme conditions. They will not crush, warp, or damage your turbo flange or gasket surfaces — unlike low-grade alternatives often found on the market.

Why Choose Our GT30R / GT35R Gasket Set?

• Designed for high-temp, high-pressure environments
• No deformation — protects sealing surfaces and turbo hardware
• OEM-level fit and performance reliability

Ideal for installs, replacements, or rebuilds — this gasket set delivers performance you can trust.

Note: Color may vary
California buyers: Sales tax applies

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About the Garrett GT30R and GT35R

The Garrett GT30R and GT35R are medium-to-large frame ball-bearing performance turbochargers built for high-output applications. The GT30R is a popular choice for 300 to 500 horsepower builds on platforms including the Nissan SR20DET and RB20DET and the Mitsubishi 4G63. The GT35R steps up to support larger displacement engines and higher power targets, commonly found in RB26DETT builds, 2JZ-GTE applications, and high-power V8 conversions targeting 600 horsepower and above.

Both turbos feature ball-bearing center sections and larger wheel designs compared to the GT25R/GT28R family. These design differences make the GT3x series capable of flowing significantly more air, but they also mean the turbo operates at higher temperatures and bearing loads — making gasket quality and complete replacement more important than in smaller-frame units.

Ball-Bearing Center Sections and Why Gasket Integrity Matters More

The GT30R and GT35R use a dual ball-bearing cartridge rather than the journal bearing design found in most OEM turbos. Ball-bearing turbos offer faster spool times and lower friction, but they are also more sensitive to oil contamination and thermal shock. A failed exhaust housing gasket that exposes the bearing housing to uncontrolled heat can damage the ball-bearing cartridge within hours of operation.

A failed oil drain gasket in a ball-bearing GT30R or GT35R allows oil to pool in the center section. Pooled oil carbonizes at the high temperatures near the turbine, forming hard carbon deposits that restrict the oil drain passage and starve the bearing cartridge of lubrication. Oil that backs up in the center section, from a kinked drain hose or a gasket that covers part of the drain opening, can coke and starve the bearings.

GT30R and GT35R Gasket Set Contents

This kit contains the two gaskets for a GT30R or GT35R install or rebuild: the self-sealing stainless steel exhaust housing gasket and the oil drain gasket. All components are manufactured to OEM-equivalent specifications and dimensionally matched to the GT30R and GT35R center section oil port dimensions.

First Start After Rebuild

After installing new gaskets, pre-lubricate the center section with fresh engine oil before starting. On the first startup, idle for five to ten minutes before applying any load.

PT Turbo GT-Series Rebuild Services

PT Turbo offers complete rebuild services for Garrett GT30R and GT35R turbochargers from our San Bernardino, California facility. We have the precision equipment required to correctly service ball-bearing cartridges and have rebuilt performance turbos at this level since 1978. Call (909) 824-1020 Monday through Friday to discuss rebuild options for your specific unit.