{"product_id":"21739606-air-valve-genuine-volvo-penta","title":"21739606 Air Valve | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Air-control valve installed in the exhaust-brake and aftertreatment arrangement of Volvo Penta TAD8 industrial engines. It regulates the air path associated with the exhaust brake and adjoining exhaust hardware.\n\u003c\/p\u003e\n\u003ch2\u003e\n 🚤 Compatibility\n\u003c\/h2\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Volvo Penta TAD840GE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD853VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD840-43VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD850-52VE\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Engine Family:\n  \u003c\/strong\u003e\n  TAD\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta control valve\n \u003c\/li\u003e\n \u003cli\u003e\n  Factory pressure or flow calibration\n \u003c\/li\u003e\n \u003cli\u003e\n  Correct port and sealing geometry\n \u003c\/li\u003e\n \u003cli\u003e\n  Designed for the original system circuit\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: 7.7-litre inline-six industrial diesel\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Opens, closes or diverts system flow according to pressure, temperature or control demand.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Valve sticking open or closed\n \u003c\/li\u003e\n \u003cli\u003e\n  Restricted or uncontrolled flow\n \u003c\/li\u003e\n \u003cli\u003e\n  Leakage at the body or seals\n \u003c\/li\u003e\n \u003cli\u003e\n  System warning or reduced performance\n \u003c\/li\u003e\n \u003cli\u003e\n  Corrosion or deposit build-up\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🛠️ Service Notes\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  This is the air control for the exhaust brake on TAD8 industrial engines — how quickly and how firmly the brake takes up depends on this valve and on the small-bore air line and union feeding it.\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the air line and its union before condemning the valve; a split, chafed or loose pipe produces the same weak or absent braking and is far quicker to rule out.\n \u003c\/li\u003e\n \u003cli\u003e\n  The air reaching the valve must be clean and dry — moisture and oil carried over from the air system are the usual reason these valves start to stick or respond slowly.\n \u003c\/li\u003e\n \u003cli\u003e\n  The valve sits in the exhaust-brake area and runs hot, so refit any heat shielding and keep the air line routed clear of the exhaust when reassembling.\n \u003c\/li\u003e\n \u003cli\u003e\n  Renew the gaskets on any joints you disturb and check the clamp on the exhaust-brake body for distortion — a leaking joint here will upset brake performance even with a sound valve.\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/h2\u003e\n\u003ch3\u003e\n Other-Brand OEM Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  VOE21739606\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n Aftermarket \/ Verified Equivalents\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Exhaust brake: 22719433\n \u003c\/li\u003e\n \u003cli\u003e\n  Gasket: 21588074\n \u003c\/li\u003e\n \u003cli\u003e\n  V-clamp: 21472836\n \u003c\/li\u003e\n \u003cli\u003e\n  Pipe: 22504276\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 📦 Condition\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta part\n \u003c\/li\u003e\n \u003cli\u003e\n  Brand new\n \u003c\/li\u003e\n \u003cli\u003e\n  Supplied in original or equivalent packaging\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53379283026212,"sku":"6287753","price":619.43,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_d8ae466c-9459-4e63-8bed-97e312b6c710.jpg?v=1777116359","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21739606-air-valve-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}