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Toyota 1GR-FE 4.0L V6 Cylinder Head Gasket - Multi-Layer Steel (MLS) Viton Coated Right-Side (RH / Bank 1) Replacement

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Toyota 1GR-FE 4.0L V6 Cylinder Head Gasket - Multi-Layer Steel (MLS) Viton Coated Right-Side (RH / Bank 1) Replacement

MOQ:	10 pcs
Price:	Negotiable
Standard Packaging:	Neutral Package or as customers’ request
Delivery Period:	5-8 Work Days
Payment Method:	T/T,Western Union
Supply Capacity:	10000 pcs/month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

Certification

ISO/TS16949

Model Number

Toyota 1GR-FE 4.0L V6 4Runner FJ Cruiser Tacoma Tundra Land Cruiser Prado

OEM Part Number:

11115-31030 (also 1111531030)

Engine Compatibility:

Toyota 1GR-FE (4.0L / 3,956 Cc V6 Petrol)

Gasket Type:

Multi-Layer Steel (MLS) – Stainless Steel With Viton Coating

Gasket Bore Diameter:

95.5–96.5 Mm

Compressed Thickness:

0.036 In (0.91 Mm) ±0.001 In

Number Of Layers:

Item Weight:

0.70 Lb (317 G)

Item Dimensions:

25.5 × 9.5 × 0.1 In (65 × 24 × 0.25 Cm)

Highlight:

Toyota 1GR-FE cylinder head gasket

4.0L V6 MLS gasket replacement

right-side cylinder head gasket Viton coated

Product Description

Cylinder Head Gasket 11115-31030 For Toyota 1GR-FE 4.0L V6

The cylinder head gasket carrying Toyota OEM number 11115-31030 seals the interface between the cylinder head and engine block on the Toyota 1GR-FE 4.0L V6 petrol engine. It is the factory-spec replacement for the original component, serving as the right-side (RH / bank 1 / passenger side) gasket on this V6 engine.

The 1GR-FE is a 3,956 cc 60-degree V6 with dual overhead camshafts, 24 valves, and VVT-i technology. It features a bore and stroke of 94.0 mm × 95.0 mm, an aluminium cylinder head, and an aluminium engine block with cast-iron cylinder liners, producing between 236 and 270 horsepower.

This gasket is constructed from multi-layer steel (MLS) with multiple precision-stamped embossed layers of stainless steel and a Viton rubber coating. The MLS design maintains consistent clamping force through thermal cycles, with stainless steel fire rings sized to the 94.0 mm cylinder bore. The compressed operating thickness is approximately 0.036 inches (0.91 mm).

Part Number:	11115-31030	Product Name:	Cylinder Head Gasket
Car Model:	Toyota 4Runner FJ Cruiser Tacoma Tundra Land Cruiser Prado	Engine Model:	Toyota 1GR-FE 4.0L V6
Condition:	100% Brand New	Size:	Standard
Weight:	Standard	Origin:	China Mainland
Main Market:	Middle East, Asia, Africa, South America, North America & Europe	Package:	Neutral Packing Or Make It As Requested
Material:	High-strength aluminum alloy & precision bearings	Cooling Type:	Engine coolant circulation
Installation:	Direct OEM replacement	Quality Standard:	OEM equivalent / ISO quality control

OE Cross-Reference & Supersession

The 11115-31030 is the earlier production part number for the right-side cylinder head gasket. Toyota replaced it with an updated number: 11115-31031.

OE Number	Status	Notes
11115-31030	Superseded / discontinued	Original production gasket
11115-31031	Current / active	Supersedes and replaces 11115-31030

Despite the part number change, both numbers are functionally interchangeable for the 1GR-FE engine and cover the same vehicle applications.

Applications

This Toyota 1GR-FE cylinder head gasket directly replaces the factory sealing component in the following configurations:

4Runner

Model	Generation	Years	Engine
Toyota 4Runner	N210 (4th Gen)	2003-2009	1GR-FE 4.0L V6

FJ Cruiser

Model	Generation	Years	Engine
Toyota FJ Cruiser	GSJ10, GSJ15	2007-2009 (to 10/2010)	1GR-FE 4.0L V6

Land Cruiser Prado

Model	Chassis	Years	Engine
Toyota Land Cruiser Prado	GRJ120, GRJ121, GRJ125 (J12)	2003-2009	1GR-FE 4.0L V6

Tacoma

Model	Chassis	Years	Engine
Toyota Tacoma	N220 / N240 (2nd Gen)	2005-2015	1GR-FE 4.0L V6

Tundra

Model	Generation	Years	Engine
Toyota Tundra	XK50 / XK51 (2nd Gen)	2005-2011	1GR-FE 4.0L V6

For the left side (driver side / bank 2), use the corresponding left-bank gasket:

OE Number	Position
11116-31010	Left side (LH / bank 2) - order separately

Features & Benefits

Multi-Layer Steel (MLS) Construction

Manufactured from multiple precision-stamped embossed layers of stainless steel with Viton rubber coating. Withstands sustained cylinder pressures and thermal cycling of large-displacement V6 engines used in off-road and towing applications.

3-Layer MLS + Viton Coating - Factory Specification

Uses standard 3-layer MLS stack (0.036 in / 0.91 mm compressed thickness) that matches Toyota's original production specification for the 1GR-FE.

Elastomer Coating - No Additional Sealants

Outer steel layers carry heat-activated elastomer coating that flows into microscopic surface imperfections, sealing oil and coolant passages without additional sealants. Installation is performed dry as per Toyota workshop manual.

Right-Side (RH / Bank 1) Specific Fit

Specifically for the right bank (RH, passenger side, cylinders 4-6) of the 1GR-FE V6 engine. For left bank, use corresponding left-bank gasket 11116-31010.

Right-Side Application - Most Common Failure Point

Head gasket leaks most frequently occur between cylinders No. 5 or No. 6 on the right bank - the very side sealed by this gasket.

Stainless Steel Fire Rings for Gas-Tight Sealing

Each cylinder opening surrounded by stainless steel fire ring that creates gas-tight seal around combustion chamber when cylinder head is torqued to specification.

Torque-to-Yield (TTY) Compatibility

Designed for use with torque-to-yield (stretch) cylinder head bolts. Toyota 1GR-FE cylinder head bolts are single-use fasteners and must be replaced whenever cylinder head is removed.

IATF 16949 / ISO 9001 Certified Manufacturing

Manufactured under IATF 16949 and ISO 9001 certified quality management systems with each production batch tracked with material certificates and dimensional inspection records.

Quality Control & Verification

Each batch undergoes comprehensive verification:

QC Item	Verification Method
Fire ring bore alignment	Laser measurement - 95.5 ±0.05 mm
Gasket thickness (compressed)	Digital micrometer at 6 points - 0.036 in ±0.001 in
Layer registration	Optical inspection - all MLS layers align within 0.2 mm
Fire ring material	Spectrographic analysis - stainless steel grade confirmed
Viton coating integrity	Visual and adhesion test - no voids, cracks, or missing coating
Full dimensional inspection	CMM measurement - bolt hole alignment, water jacket, and oil ports
Anti-corrosion treatment	VCI (Vapor Corrosion Inhibitor) sealed bag

Installation & Maintenance Recommendations

⚠️ IMPORTANT: The 1GR-FE uses torque-to-yield (stretch) cylinder head bolts. These are single-use fasteners and must be replaced with new units whenever the cylinder head is removed. Reusing old bolts risks uneven clamping, head gasket failure, and cylinder head warping.

Why this gasket fails on the 1GR-FE engine:

On the 1GR-FE, documented failure pattern shows that 90% of leaks occur between cylinder No. 5 or No. 6 - the cylinders sealed by this gasket. A faulty engine thermostat is one of the most common root causes, leading to localized overheating that stresses the sealing rings.

Recommended Replacement Indicators (1GR-FE-specific symptoms):

Symptom	Diagnosis
Gradual coolant loss with no visible external leak	Coolant escaping past fire ring into combustion chamber
Bubbles in coolant overflow bottle with engine running	Combustion gases entering cooling system - definitive sign of head gasket breach
Overflow bottle bubbles only when revved	Leak between cylinders 4-5 or 5-6 on the right bank
Pressurised cooling system - hoses remain hard even when cold	Combustion gases entering cooling system through failed gasket
Milky residue under oil filler cap (after extended driving)	Coolant mixed with engine oil - internal gasket failure
Engine overheating after 2-3 days of normal driving	Exhaust gas slowly accumulating in cooling system

Procedural notes when using this gasket (1GR-FE engine):

Confirm the correct side (bank) before ordering. This is the right-side (RH / passenger side / cylinders 4-5-6) gasket. For the left bank, order 11116-31010.
Always replace cylinder head bolts with new genuine-spec bolts. Torque-to-yield bolts cannot be reused.
Check cylinder head and block surfaces for warpage using precision straight edge and feeler gauge. Specification for head flatness is ≤ 0.05 mm across full length.
Install the gasket dry - no additional sealants. The MLS gasket's Viton coating is heat-activated.
Clean and chase all bolt holes in cylinder block to remove debris. Use compressed air to clear each hole before bolt installation.
Replace timing chain cover gasket and front crankshaft oil seal when reassembling.
Flush cooling system and fill with fresh Toyota Super Long Life Coolant mixed 50/50 with distilled water.
Consider professional installation. Head gasket replacement requires specialized tools and access to Toyota Repair Manual.

Maintenance schedule for 1GR-FE engines:

Service Item	Interval
Replace engine coolant	Every 5 years or 100,000 km
Check for bubbles in overflow bottle	Monthly
Inspect thermostat operation	At each coolant change
Address any overheating event immediately	As needed
When cylinder head is removed for any reason	Always replace head bolts and full set of gaskets
Replace spark plugs	Every 100,000 km

Packaging & Supply

Individual packaging: Sealed in anti-static VCI bag, foam-lined carton
Carton dimensions: Approx. 26 × 10 × 0.5 in (66 × 25 × 1.3 cm)
Net weight: 0.70 lb (317 g)
Master carton: 50 units per export carton
Lead time: 3-7 working days for stock orders; 15-25 days for production orders above 200 pieces
Minimum order quantity: 1 piece (sample order available)
Shipping methods: FedEx, UPS, DHL for samples; sea freight from Shanghai, Ningbo, Guangzhou ports
H/S Code: 8484.10

For workshops performing full top-end service, the supplier also stocks matching 1GR-FE cylinder head bolts, valve stem seal sets, rocker cover gaskets, and left-bank gaskets (11116-31010).

Quick Summary

The Toyota 1GR-FE cylinder head gasket 11115-31030 is an OEM-specification MLS replacement for the right-side (RH / bank 1 / passenger side) of the 4.0L V6 engine. It fits 4Runner (2003-2009), FJ Cruiser (2007-2009 to 10/2010), Land Cruiser Prado (2003-2009), Tacoma (2005-2015), Tundra (2005-2011), and Hilux Surf (1995-2002) vehicles.

Important ordering note: This is the right-side gasket. If you need the left-side gasket, order 11116-31010.
Cross-reference to active part number: Toyota superseded this number to 11115-31031, which is the current active part number from Toyota dealerships. Both numbers are functionally interchangeable for the 1GR-FE engine.

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Toyota 1GR-FE 4.0L V6 Cylinder Head Gasket - Multi-Layer Steel (MLS) Viton Coated Right-Side (RH / Bank 1) Replacement

MOQ:	10 pcs
Price:	Negotiable
Standard Packaging:	Neutral Package or as customers’ request
Delivery Period:	5-8 Work Days
Payment Method:	T/T,Western Union
Supply Capacity:	10000 pcs/month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

YIMI

Certification

ISO/TS16949

Model Number

Toyota 1GR-FE 4.0L V6 4Runner FJ Cruiser Tacoma Tundra Land Cruiser Prado

OEM Part Number:

11115-31030 (also 1111531030)

Engine Compatibility:

Toyota 1GR-FE (4.0L / 3,956 Cc V6 Petrol)

Gasket Type:

Multi-Layer Steel (MLS) – Stainless Steel With Viton Coating

Gasket Bore Diameter:

95.5–96.5 Mm

Compressed Thickness:

0.036 In (0.91 Mm) ±0.001 In

Number Of Layers:

Item Weight:

0.70 Lb (317 G)

Item Dimensions:

25.5 × 9.5 × 0.1 In (65 × 24 × 0.25 Cm)

Minimum Order Quantity:

10 pcs

Price:

Negotiable

Packaging Details:

Neutral Package or as customers’ request

Delivery Time:

5-8 Work Days

Payment Terms:

T/T,Western Union

Supply Ability:

10000 pcs/month

Highlight

Toyota 1GR-FE cylinder head gasket

4.0L V6 MLS gasket replacement

right-side cylinder head gasket Viton coated

Product Description

Cylinder Head Gasket 11115-31030 For Toyota 1GR-FE 4.0L V6

Part Number:	11115-31030	Product Name:	Cylinder Head Gasket
Car Model:	Toyota 4Runner FJ Cruiser Tacoma Tundra Land Cruiser Prado	Engine Model:	Toyota 1GR-FE 4.0L V6
Condition:	100% Brand New	Size:	Standard
Weight:	Standard	Origin:	China Mainland
Main Market:	Middle East, Asia, Africa, South America, North America & Europe	Package:	Neutral Packing Or Make It As Requested
Material:	High-strength aluminum alloy & precision bearings	Cooling Type:	Engine coolant circulation
Installation:	Direct OEM replacement	Quality Standard:	OEM equivalent / ISO quality control

OE Cross-Reference & Supersession

The 11115-31030 is the earlier production part number for the right-side cylinder head gasket. Toyota replaced it with an updated number: 11115-31031.

OE Number	Status	Notes
11115-31030	Superseded / discontinued	Original production gasket
11115-31031	Current / active	Supersedes and replaces 11115-31030

Despite the part number change, both numbers are functionally interchangeable for the 1GR-FE engine and cover the same vehicle applications.

Applications

This Toyota 1GR-FE cylinder head gasket directly replaces the factory sealing component in the following configurations:

4Runner

Model	Generation	Years	Engine
Toyota 4Runner	N210 (4th Gen)	2003-2009	1GR-FE 4.0L V6

FJ Cruiser

Model	Generation	Years	Engine
Toyota FJ Cruiser	GSJ10, GSJ15	2007-2009 (to 10/2010)	1GR-FE 4.0L V6

Land Cruiser Prado

Model	Chassis	Years	Engine
Toyota Land Cruiser Prado	GRJ120, GRJ121, GRJ125 (J12)	2003-2009	1GR-FE 4.0L V6

Tacoma

Model	Chassis	Years	Engine
Toyota Tacoma	N220 / N240 (2nd Gen)	2005-2015	1GR-FE 4.0L V6

Tundra

Model	Generation	Years	Engine
Toyota Tundra	XK50 / XK51 (2nd Gen)	2005-2011	1GR-FE 4.0L V6

For the left side (driver side / bank 2), use the corresponding left-bank gasket:

OE Number	Position
11116-31010	Left side (LH / bank 2) - order separately

Features & Benefits

Multi-Layer Steel (MLS) Construction

3-Layer MLS + Viton Coating - Factory Specification

Uses standard 3-layer MLS stack (0.036 in / 0.91 mm compressed thickness) that matches Toyota's original production specification for the 1GR-FE.

Elastomer Coating - No Additional Sealants

Right-Side (RH / Bank 1) Specific Fit

Specifically for the right bank (RH, passenger side, cylinders 4-6) of the 1GR-FE V6 engine. For left bank, use corresponding left-bank gasket 11116-31010.

Right-Side Application - Most Common Failure Point

Head gasket leaks most frequently occur between cylinders No. 5 or No. 6 on the right bank - the very side sealed by this gasket.

Stainless Steel Fire Rings for Gas-Tight Sealing

Each cylinder opening surrounded by stainless steel fire ring that creates gas-tight seal around combustion chamber when cylinder head is torqued to specification.

Torque-to-Yield (TTY) Compatibility

Designed for use with torque-to-yield (stretch) cylinder head bolts. Toyota 1GR-FE cylinder head bolts are single-use fasteners and must be replaced whenever cylinder head is removed.

IATF 16949 / ISO 9001 Certified Manufacturing

Manufactured under IATF 16949 and ISO 9001 certified quality management systems with each production batch tracked with material certificates and dimensional inspection records.

Quality Control & Verification

Each batch undergoes comprehensive verification:

QC Item	Verification Method
Fire ring bore alignment	Laser measurement - 95.5 ±0.05 mm
Gasket thickness (compressed)	Digital micrometer at 6 points - 0.036 in ±0.001 in
Layer registration	Optical inspection - all MLS layers align within 0.2 mm
Fire ring material	Spectrographic analysis - stainless steel grade confirmed
Viton coating integrity	Visual and adhesion test - no voids, cracks, or missing coating
Full dimensional inspection	CMM measurement - bolt hole alignment, water jacket, and oil ports
Anti-corrosion treatment	VCI (Vapor Corrosion Inhibitor) sealed bag

Installation & Maintenance Recommendations

Why this gasket fails on the 1GR-FE engine:

Recommended Replacement Indicators (1GR-FE-specific symptoms):

Symptom	Diagnosis
Gradual coolant loss with no visible external leak	Coolant escaping past fire ring into combustion chamber
Bubbles in coolant overflow bottle with engine running	Combustion gases entering cooling system - definitive sign of head gasket breach
Overflow bottle bubbles only when revved	Leak between cylinders 4-5 or 5-6 on the right bank
Pressurised cooling system - hoses remain hard even when cold	Combustion gases entering cooling system through failed gasket
Milky residue under oil filler cap (after extended driving)	Coolant mixed with engine oil - internal gasket failure
Engine overheating after 2-3 days of normal driving	Exhaust gas slowly accumulating in cooling system

Procedural notes when using this gasket (1GR-FE engine):

Confirm the correct side (bank) before ordering. This is the right-side (RH / passenger side / cylinders 4-5-6) gasket. For the left bank, order 11116-31010.
Always replace cylinder head bolts with new genuine-spec bolts. Torque-to-yield bolts cannot be reused.
Check cylinder head and block surfaces for warpage using precision straight edge and feeler gauge. Specification for head flatness is ≤ 0.05 mm across full length.
Install the gasket dry - no additional sealants. The MLS gasket's Viton coating is heat-activated.
Clean and chase all bolt holes in cylinder block to remove debris. Use compressed air to clear each hole before bolt installation.
Replace timing chain cover gasket and front crankshaft oil seal when reassembling.
Flush cooling system and fill with fresh Toyota Super Long Life Coolant mixed 50/50 with distilled water.
Consider professional installation. Head gasket replacement requires specialized tools and access to Toyota Repair Manual.

Maintenance schedule for 1GR-FE engines:

Service Item	Interval
Replace engine coolant	Every 5 years or 100,000 km
Check for bubbles in overflow bottle	Monthly
Inspect thermostat operation	At each coolant change
Address any overheating event immediately	As needed
When cylinder head is removed for any reason	Always replace head bolts and full set of gaskets
Replace spark plugs	Every 100,000 km

Packaging & Supply

Individual packaging: Sealed in anti-static VCI bag, foam-lined carton
Carton dimensions: Approx. 26 × 10 × 0.5 in (66 × 25 × 1.3 cm)
Net weight: 0.70 lb (317 g)
Master carton: 50 units per export carton
Lead time: 3-7 working days for stock orders; 15-25 days for production orders above 200 pieces
Minimum order quantity: 1 piece (sample order available)
Shipping methods: FedEx, UPS, DHL for samples; sea freight from Shanghai, Ningbo, Guangzhou ports
H/S Code: 8484.10

For workshops performing full top-end service, the supplier also stocks matching 1GR-FE cylinder head bolts, valve stem seal sets, rocker cover gaskets, and left-bank gaskets (11116-31010).

Quick Summary

Tags: