Engines and Components› Cylinder Heads and Components

Tomei

4G63 86.5mm Bore x 1.8mm Thickness Head Gasket

$108.00

SKU: TA4070-MT01D

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Tomei head gasket is a durable, high-performance component designed for the 4G63 engine in Mitsubishi Evo 4-9 models. It features a 86.5mm bore and 1.8mm thickness, with precision water and oil route seals to ensure optimal fluid circulation. The gasket is constructed from stainless steel for strength and heat resistance.
Show original supplier description
The Tomei 86.5mm bore head gasket, with a 1.8mm thickness, is engineered for the 4G63 engine found in Mitsubishi Evolution IV through IX models (1996-2004). Its construction features thicker bore seals to effectively contain pressurized gases within the combustion chamber. Tomei gaskets are constructed using premium-grade materials, including stainless steel, and unique rubber coatings on both the top and bottom layers. This specialized coating strengthens the seal and enhances contact with the head and block surfaces. The stainless steel provides strength and heat resistance, efficiently transferring heat away from the combustion chamber to the cylinder block, while its inherent flexibility helps prevent blown gaskets and damage to the cylinder block. The gasket also incorporates precision water and oil route seals to maintain steady circulation of engine fluids. This head gasket is specifically constructed for the 4G63 engine to ensure optimal performance with minimal stress on the block and head. It offers extremely durable combustion chamber seals capable of enduring high power, boost, and temperature conditions. Multiple thickness choices are available for compression ratio adjustment, with this specific part number (TA4070-MT01D) being 1.8mm thick.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTomei
Part NumberTA4070-MT01D
CategoryEngines and Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy