{"product_id":"dj-rock-iv3138-engine-intake-valve","title":"DJ Rock IV3138 Engine Intake Valve","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDJ Rock IV3138 is an application-specific engine intake valve for GM and related SUV applications. It is built as a direct-fit replacement with nitride-coated construction for durability under high heat and repeated valve operation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNitride-coated valve surface for improved wear resistance and corrosion protection.\u003c\/li\u003e\n\u003cli\u003e37 mm valve head diameter with a 5.96 mm stem diameter.\u003c\/li\u003e\n\u003cli\u003e105.4 mm overall length for application-specific fitment.\u003c\/li\u003e\n\u003cli\u003e3-groove design for the listed engine applications.\u003c\/li\u003e\n\u003cli\u003eManufactured to meet or exceed OEM quality standards.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe DJ Rock IV3138 intake valve controls the air-fuel charge entering the combustion chamber, making it a critical valvetrain component for proper engine breathing and power delivery. This part number IV3138 is engineered for direct-fit replacement in listed Chevrolet Colorado, GMC Canyon, and related applications, with fitment also covering Buick Rainier, Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, Hummer H3, Saab 9-7x, and Oldsmobile Bravada models shown in the fitment data. The nitride-coated finish adds surface durability and helps the valve withstand thermal and mechanical stress in demanding engine environments. This part cross-references Melling V1998 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLoss of compression caused by a worn or damaged intake valve.\u003c\/li\u003e\n\u003cli\u003eRough running from poor sealing at the valve seat.\u003c\/li\u003e\n\u003cli\u003eReduced airflow into the combustion chamber.\u003c\/li\u003e\n\u003cli\u003eEngine performance issues related to heat-stressed valvetrain components.\u003c\/li\u003e\n\u003cli\u003eValve wear from prolonged high-temperature operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify engine code and valve specifications before installation. Confirm the 37 mm head diameter, 5.96 mm stem diameter, 105.4 mm length, and 3-groove configuration against the original part. Professional cylinder head service procedures are recommended for intake valve replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDJ Rock lists this intake valve as a premium-grade replacement manufactured to meet or exceed OEM quality standards. The nitride-coated surface is selected to improve wear resistance, reduce friction, and support long-term valve stability under severe operating conditions.\u003c\/p\u003e","brand":"DJ Rock","offers":[{"title":"Default Title","offer_id":53396522041525,"sku":"FLPN-IV3138","price":16.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DJ_IV3138_Fro.jpg?v=1790665065","url":"https:\/\/www.partcatalog.com\/products\/dj-rock-iv3138-engine-intake-valve","provider":"PartCatalog","version":"1.0","type":"link"}