This is an intercooler hose designed to connect the turbocharger's compressed air outlet to the engine's intake manifold, facilitating charge air cooling for improved combustion efficiency. It is constructed from high-temperature, oil-resistant rubber and reinforced fabric to withstand pressure fluctuations and heat, unlike a cracked or collapsed hose that can lead to a loss of boost pressure and engine power. Operators may notice a significant loss of engine power, black smoke from the exhaust, or a hissing sound under acceleration when this hose fails.
Always verify with serial number before ordering.
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Alternate part numbers that interchange with Volvo 21312238
Fitment: Volvo Trucks: FH12: 2004> 2005 FH13: 2006> 2007, FM: 2013> Renault Trucks: C-Range, K-Range, T-Range
Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
A failing intercooler hose typically first presents as a noticeable loss of engine power, especially under load. If left unaddressed, the leak can worsen, leading to increased exhaust smoke and potential turbocharger damage due to backpressure. Continued operation with a compromised hose significantly reduces fuel efficiency and engine performance.
Ensure the connection surfaces on the turbocharger, intercooler, and pipework are clean and free of oil or debris before fitting the new hose. Do not reuse old hose clamps; always use new, properly sized clamps.
Inspect the turbocharger, intercooler core, and all associated piping for leaks or damage when replacing the intercooler hose.