{"product_id":"hybrid-racing-prb-rwd-coolant-port-adapter-k20a-k20z1-k24a1","title":"Hybrid Racing PRB RWD Coolant Port Adapter - K20A\/K20Z1\/K24A1","description":"\u003cp\u003e\u003cstrong\u003eHYB-CPA-01-07 - Hybrid Racing PRB RWD Coolant Port Adapter - K20A\/K20Z1\/K24A1\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRoute coolant cleanly in a rear-wheel-drive PRB-head K swap\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFirewall clearance is limited in most rear-wheel-drive K-series conversions, and the factory coolant outlet points directly into that tight space. Hybrid Racing's PRB RWD coolant port adapter turns the radiator outlet out the side of the cylinder head, creating a more practical route for cooling-system plumbing while freeing up valuable space behind the engine.\u003c\/p\u003e\n\u003cp\u003eThe compact housing is fully machined from a single piece of 6061 aluminum and finished in black anodizing. Its threaded -16 ORB outlet works with the included hose-barb fitting for conventional radiator hose or with a -16 ORB to -16 AN fitting for a complete AN-plumbed cooling system.\u003c\/p\u003e\n\u003ch4\u003eSide-Exit Cooling for RWD K Swaps\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSide-exit design improves firewall clearance in tight rear-wheel-drive engine bays\u003c\/li\u003e\n\u003cli\u003eUse a conventional radiator hose or convert to -16 AN plumbing\u003c\/li\u003e\n\u003cli\u003eRetains the factory thermostat bypass circuit for proper warm-up flow\u003c\/li\u003e\n\u003cli\u003eIncludes a 1\/8-inch NPT port for an aftermarket coolant-temperature sensor\u003c\/li\u003e\n\u003cli\u003eFully machined internal coolant passage promotes smooth, unrestricted flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eImportant Intake Manifold Compatibility:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires a rear-wheel-drive-specific intake manifold with throttle-body clearance\u003c\/li\u003e\n\u003cli\u003eNot compatible with standard front-wheel-drive K-series intake manifolds\u003c\/li\u003e\n\u003cli\u003eThe side-exit coolant outlet will interfere with the throttle body on standard FWD manifolds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFits PRB-style K20A, K20A2, K20A3, K20Z1, and K24A1 cylinder heads\u003c\/li\u003e\n\u003cli\u003eSingle-piece billet 6061 aluminum construction\u003c\/li\u003e\n\u003cli\u003eDurable black anodized finish\u003c\/li\u003e\n\u003cli\u003eSide-exit -16 ORB coolant outlet\u003c\/li\u003e\n\u003cli\u003eWorks with the included hose-barb adapter or an aftermarket -16 AN fitting\u003c\/li\u003e\n\u003cli\u003eMachined pocket uses an OEM-style rubber seal with no RTV required\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for rear-wheel-drive K-series conversions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eEngine Fitment:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2006 Acura RSX engines (K20A\/K20A2\/K20A3)\u003c\/li\u003e\n\u003cli\u003e2002-2005 Honda Civic Si EP3 engines (K20A3\/K20Z1)\u003c\/li\u003e\n\u003cli\u003e2002-2006 Honda CR-V engines (K24A1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible with rear-wheel-drive conversions such as Honda S2000, Nissan 240SX, Subaru BRZ, BMW 3 Series, Mazda Miata, and similar chassis when used with an RWD-specific intake manifold.\u003c\/p\u003e\n\u003ch4\u003eWhat's Included:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Billet coolant port adapter\u003c\/li\u003e\n\u003cli\u003e(1) -16 ORB to hose-barb radiator fitting\u003c\/li\u003e\n\u003cli\u003e(1) OEM-style sealing gasket\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor RWD K-swap builders working with limited room behind the cylinder head, this adapter provides a compact side-exit cooling solution with proper flow, OEM-style sealing, and a dedicated location for a coolant-temperature sensor.\u003c\/p\u003e","brand":"Hybrid Racing","offers":[{"title":"Default Title","offer_id":53877733523763,"sku":"HYB-CPA-01-07","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0256\/5855\/6497\/files\/01-HYB-CPA-01-07.jpg?v=1787182831","url":"https:\/\/www.circuitspecr.com\/products\/hybrid-racing-prb-rwd-coolant-port-adapter-k20a-k20z1-k24a1","provider":"Circuit Spec R","version":"1.0","type":"link"}