{"title":"CAT C15 Cylinder Heads","description":null,"products":[{"product_id":"pdi-big-boss-cat-stage-1-cylinder-head","title":"PDI Big Boss CAT 3406E\/C15\/C16 Stage 1 Cylinder Head","description":"\n\u003cp\u003e\u003cstrong\u003eEngineered for Strength. Designed for Durability. Built for Performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe PDI Big Boss™ Stage 1 Cylinder Head is engineered to deliver exceptional strength, thermal stability, and long-term durability in demanding Caterpillar diesel engine applications.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing an engineered metallurgical composition, premium Inconel intake and exhaust valves, and improved cooling passages, the Big Boss™ Cylinder Head is built for the extreme temperatures and continuous operating demands of heavy-duty diesel engines.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShips Fully Assembled | No Core Deposit Required\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngineered Metallurgical Composition\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA specialized alloy formulation designed to withstand the extreme heat and demanding conditions of heavy-duty diesel applications. The carefully engineered material composition promotes structural integrity, thermal stability, and long-term casting durability.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePremium Inconel Intake \u0026amp; Exhaust Valves\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEquipped with high-temperature-resistant Inconel intake and exhaust valves, engineered for strength and durability in demanding operating conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAdvanced Cooling Passage Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImproved internal cooling passages are designed to support efficient heat transfer and improved thermal management throughout the cylinder head.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFully Assembled — Ready for Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach PDI Big Boss™ Stage 1 Cylinder Head ships fully assembled, eliminating the need to purchase and assemble individual valvetrain components separately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNo Core Deposit Required\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePurchase your new PDI Big Boss™ Cylinder Head without an additional core deposit or the requirement to return your old cylinder head. No core return process, no waiting for a core refund, and no additional core deposit added to your purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerformance-Focused Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEngineered with premium materials and design features intended to support structural integrity and durability under demanding engine operating conditions.\u003c\/p\u003e\n\n\u003ch4\u003eEngine Compatibility\u003c\/h4\u003e\n\n\u003cp\u003eDesigned for select Caterpillar 3406E, C15, C16 and C18 diesel engines.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Engine Serial Prefixes:\u003c\/strong\u003e\u003cbr\u003e\n5EK, 6TS, 1LW, 2WS, 6NZ, MBN, BXS, MXS, NXS, SDP, 1MM, 7CZ\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eOur sales team will contact you to confirm fitment before shipment!\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch4\u003eCaterpillar OEM Cross-Reference Numbers\u003c\/h4\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse; text-align:center; font-size:13px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e245-4324\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e20R-2645\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e0R7595\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e112-3572\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e122-8042\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e142-7339\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e161-6190\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e160-4346\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e176-9918\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e183-5296\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e325-0375\u003c\/td\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e160-4347\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:4px 2px;\"\u003e4P-1599\u003c\/td\u003e\n      \u003ctd\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003csmall\u003e\u003cem\u003eOEM part numbers are provided for cross-reference purposes only. Engine serial number verification is required to confirm compatibility.\u003c\/em\u003e\u003c\/small\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWhy Choose a PDI Big Boss™ Cylinder Head?\u003c\/h4\u003e\n\n\u003cp\u003eThe cylinder head is one of the most critical components in any heavy-duty diesel engine. Extreme combustion temperatures, repeated thermal cycling, and sustained engine loads place tremendous stress on conventional cylinder head castings and valvetrain components.\u003c\/p\u003e\n\n\u003cp\u003eThe PDI Big Boss™ Stage 1 Cylinder Head is designed to address these demanding conditions through advanced material engineering, improved thermal management, and premium component selection.\u003c\/p\u003e\n\n\u003cp\u003eWith a fully assembled design, no core deposit requirement, and premium manufacturing, PDI delivers a straightforward cylinder head replacement solution without compromising on quality.\u003c\/p\u003e\n\n\u003ch4\u003eWarranty \u0026amp; Support\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003e2-Year, Unlimited-Mileage Limited Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBacked by PDI's commitment to product quality and customer support.\u003c\/p\u003e\n\n\u003cp\u003eFor fitment verification or technical assistance, contact PDI at \u003cstrong\u003e\u003ca href=\"tel:8005111231\"\u003e800-511-1231\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e\n","brand":"Performance Diesel Inc","offers":[{"title":"Default Title","offer_id":48008729100564,"sku":"144071692501","price":5695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0069\/6854\/1254\/files\/CATCylinderHead_44644df5-462d-40d0-ae7b-62846e259fa3.png?v=1713555194"},{"product_id":"pdi-big-boss-cat-stage-2-cylinder-head","title":"PDI Big Boss CAT 3406E\/C15\/C16 Stage 2 Cylinder Head","description":"\u003cp\u003e\u003cstrong\u003eEngineered for Strength. Designed for Durability. Built for Higher Performance.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PDI Big Boss™ Stage 2 Cylinder Head builds upon our Stage 1 design with the addition of precision stainless steel firewiring for enhanced head gasket retention in demanding Caterpillar diesel engine applications.\u003c\/p\u003e\n\u003cp\u003eFeaturing an engineered metallurgical composition, premium Inconel intake and exhaust valves, improved cooling passages, and precision-installed stainless steel firewire, the Big Boss™ Stage 2 Cylinder Head is designed for the extreme temperatures, thermal cycling, and continuous operating demands of heavy-duty diesel engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Stainless Steel Firewiring | Ships Fully Assembled | No Core Deposit Required\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Stainless Steel Firewiring — Enhanced Head Gasket Retention\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PDI Big Boss™ Stage 2 Cylinder Head features precision-machined grooves in the cylinder head's fire deck, fitted with stainless steel firewire. Positioned outside the head gasket's primary combustion seal, the firewire creates an additional point of contact that bites into the head gasket when properly installed.\u003c\/p\u003e\n\u003cp\u003eThis design provides additional mechanical locking engagement between the cylinder head and head gasket, helping to resist gasket movement and support sealing integrity under demanding engine operating conditions including todays increased cylinder pressures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngineered Metallurgical Composition\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA specialized alloy formulation designed to withstand the extreme heat and demanding conditions of heavy-duty diesel applications. The carefully engineered material composition promotes structural integrity, thermal stability, and long-term casting durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePremium Inconel Intake \u0026amp; Exhaust Valves\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEquipped with high-temperature-resistant Inconel intake and exhaust valves, engineered for strength and durability in demanding operating conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Cooling Passage Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImproved internal cooling passages are designed to support efficient heat transfer and improved thermal management throughout the cylinder head.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFully Assembled — Ready for Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach PDI Big Boss™ Stage 2 Cylinder Head ships fully assembled, eliminating the need to purchase and assemble individual valvetrain components separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNo Core Deposit Required\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePurchase your new PDI Big Boss™ Cylinder Head without an additional core deposit or the requirement to return your old cylinder head. No core return process, no waiting for a core refund, and no additional core deposit added to your purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance-Focused Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEngineered with premium materials, precision stainless steel firewiring, and design features intended to support structural integrity and durability under demanding engine operating conditions.\u003c\/p\u003e\n\u003ch4\u003eEngine Compatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for select Caterpillar 3406E, C15, C16 and C18 diesel engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Engine Serial Prefixes:\u003c\/strong\u003e\u003cbr\u003e5EK, 6TS, 1LW, 2WS, 6NZ, MBN, BXS, MXS, NXS, SDP, 1MM, 7CZ\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOur sales team will contact you to confirm fitment before shipment!\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eCaterpillar OEM Cross-Reference Numbers\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: center; font-size: 13px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e245-4324\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e20R-2645\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e0R7595\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e112-3572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e122-8042\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e142-7339\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e161-6190\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e160-4346\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e176-9918\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e183-5296\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e325-0375\u003c\/td\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e160-4347\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px 2px;\"\u003e4P-1599\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003e\u003cem\u003eOEM part numbers are provided for cross-reference purposes only. Engine serial number verification is required to confirm compatibility.\u003c\/em\u003e\u003c\/small\u003e\u003c\/p\u003e\n\u003ch4\u003eWhy Choose a PDI Big Boss™ Stage 2 Cylinder Head?\u003c\/h4\u003e\n\u003cp\u003eThe cylinder head is one of the most critical components in any heavy-duty diesel engine. Extreme combustion temperatures, repeated thermal cycling, and sustained engine loads place tremendous stress on conventional cylinder head castings and valvetrain components.\u003c\/p\u003e\n\u003cp\u003eThe PDI Big Boss™ Stage 2 Cylinder Head combines the premium construction of our Stage 1 design with precision stainless steel firewiring. This additional mechanical engagement with the head gasket is designed to help resist gasket movement and support sealing integrity under demanding engine operating conditions.\u003c\/p\u003e\n\u003cp\u003eWith a fully assembled design, no core deposit requirement, and premium manufacturing, PDI delivers a straightforward cylinder head replacement solution without compromising on quality.\u003c\/p\u003e\n\u003ch4\u003eWarranty \u0026amp; Support\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2-Year, Unlimited-Mileage Limited Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBacked by PDI's commitment to product quality and customer support.\u003c\/p\u003e\n\u003cp\u003eFor fitment verification or technical assistance, contact PDI at \u003cstrong\u003e\u003ca href=\"tel:8005111231\"\u003e800-511-1231\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Performance Diesel Inc","offers":[{"title":"Default Title","offer_id":48008734376212,"sku":"144071692502","price":6450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0069\/6854\/1254\/files\/CATCylinderHead.png?v=1713555011"},{"product_id":"pdi-premium-cat-cylinder-head-gasket-set","title":"PDI Premium CAT Cylinder Head Gasket Set","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAvailable for:\u003c\/strong\u003e \u003cspan data-mce-fragment=\"1\"\u003e1994-2009 CAT 3406E, C15, C16 Engines\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eKey Benefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eExclusive Tempered Steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eMade in the USA\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWarranty:\u003c\/strong\u003e 1 Year Unlimited Mile Warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003ePDI Premium CAT head gasket set for 3406E, C15 and C16 engines are made for durability\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%;\" data-mce-fragment=\"1\" data-mce-style=\"width: 100%;\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 50%;\" data-mce-fragment=\"1\" data-mce-style=\"width: 50%;\"\u003eOEM Serial Number Prefix Applications\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\" data-mce-fragment=\"1\" data-mce-style=\"width: 50%;\"\u003e5EK, 6TS, 1LW, 2WS, 6NZ, MBN, BXS, MXS, NXS, SDP, 1MM, 7CZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Performance Diesel Inc","offers":[{"title":"Default Title","offer_id":48174771863828,"sku":"111007165615","price":985.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0069\/6854\/1254\/files\/CATHeadGasket.png?v=1721844678"}],"url":"https:\/\/pdidiesel.com\/collections\/cat-c15-cylinder-heads.oembed","provider":"Performance Diesel Inc","version":"1.0","type":"link"}