Sale

Heating and Cooling Radiators

Dom's

Cylinder 4 Combustion Chamber Cooling Kit

$89.00 $79.00 Save $10.00

SKU: GDT-CYL4COOL

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In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Dom's GDT-CYL4COOL is a patent-pending, industry-first DOHC EJ Cylinder 4 Combustion Chamber Cooling kit. This Version 7 kit features a custom-machined and anodized 6061 fitting, a billet aluminum T-fitting for improved sealing and aesthetics, and a custom-formed NBR hose designed for universal fitment on specified EJ engines. It also includes four GDT custom-made 304SS embossed, non-perforated, rounded-edge worm clamps for secure hose attachment. This cooling modification is compatible with all years and models except the 2010+ LGT. For those models, a 90-degree fitting, an additional 8 inches of hose, and three more hose clamps would be required. Installation instructions are provided, and purchasers are responsible for any applicable import duties. The product has undergone continuous improvement, with Version 7 building upon previous iterations (V1-V6) that utilized different hose materials (silicone, EPDM) and fitting designs to enhance coolant tolerance, oil resistance, corrosion resistance, and heater performance.

MIA's Description

The Dom's GDT-CYL4COOL is a Cylinder 4 Combustion Chamber Cooling kit designed for DOHC EJ engines. It increases coolant flow in the LH head to improve reliability by reducing detonation hot spots and lowering EGT delta. This kit enhances overall cooling system performance.

Fitment

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Specifications

BrandDom's
Part NumberGDT-CYL4COOL
CategoryHeating and Cooling

Buy with Confidence

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.

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