1664785 Hose Clamp | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta hose clamp is a high-load charge-air hose clamp used in the charge-air cooler hose clamp. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it retains the charge-air hose on the charge-air cooler or pipe connection under boost pressure. Selection must be confirmed by OEM part number 1664785, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD620VE
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD520GE

• Engine Family: TAD

⚙️ Key Features

• OEM Volvo Penta part number 1664785
• Genuine Volvo Penta replacement hose clamp
• Net weight 0.079 kg
• Fits TAD520, TAD620, TAD720 and TAD721 series industrial and generator-set diesel engines
• Sold individually - order the quantity required for the hose connections being serviced
• Quantity varies by assembly, most commonly two

🔌 Function

The clamp compresses a flexible hose onto its mating stub or fitting to form a secure, pressure-tight seal. It prevents the hose from working loose or leaking under engine vibration, heat cycling and system pressure.

⚠️ Common Signs of Failure

• Coolant, fuel or oil seepage and staining at the hose-to-fitting joint
• Hose slipping off or creeping away from the stub under pressure
• Corrosion, pitting or rust streaking on the clamp band
• Stripped, seized or rounded tightening screw that will not hold torque
• Cracked or distorted band that no longer applies even clamping pressure

🛠️ Service Notes

• Match the clamp to the hose outside diameter so the band closes well within its working range rather than at the very end of its travel
• Position it over the spigot behind the bead or barb, with the screw where a driver or spanner can still reach it once everything is refitted
• Tighten to seal, not to crush — an over-tightened worm-drive clamp cuts into soft hose and starts the leak you were trying to stop
• Renew clamps when a hose is changed rather than reusing them, and keep band, housing and screw all marine-grade stainless so the clamp does not corrode against itself
• Where two clamps are fitted to one connection, stagger the screw heads and recheck both after the first running period

🔄 Supersession & Cross Reference

OEM / Related Numbers

• Charge-air hose 3809267

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging