21087598 Screw | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta application-specific mounting screw used in the TAD732GE/TAD733GE cooling-package and fan-shroud support arrangements. The screw has the specified diameter, thread, length and head form needed to clamp the guard or bracket without fouling nearby cooling components. It continues to appear in the revised cooling package after the first serial break.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4

• Engine Family: TAD

⚙️ Key Features

• Correct thread, grip length and head geometry for the cooling-package structure
• Used with the specified grille, fan-shroud or bracket mounting point
• Maintains designed clamp load under fan vibration
• OEM finish provides corrosion resistance in the cooling-air stream
• Should not be replaced with a longer screw that could contact the radiator or intercooler
• Engine type: D7-series generator diesel packaged cooling system
• 2 used per assembly

🔌 Function

Fastens the assigned cooling-package guard or support component with the correct grip length and clamp load.

⚠️ Common Signs of Failure

• Loose grille, bracket or shroud
• Corroded head preventing removal
• Incorrect replacement screw contacting a cooling core
• Repeated loosening due to missing locking hardware or damaged bracket holes

🛠️ Service Notes

• Clean the threads in the casting and check them for damage before fitting; a screw run into a dirty or pulled thread gives a false torque reading and will not hold its load
• Tighten to the torque given in the workshop manual for your engine rather than by feel, and follow the specified sequence where the joint has one
• Use the thread locking or sealing compound the manual calls for at that joint — some screws pass into oil, coolant or fuel space and have to seal as well as clamp
• Renew any screw that is stretched, corroded in the shank, or has damaged threads or a rounded head, and never reuse one that was tightened by a stretch or angle-tighten procedure
• A little marine-grade anti-seize helps later removal where the manual permits it, but keep it off threads that are meant to take a locking compound

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21087593 - early stay and bracket arrangement
• 21087594 - early stay and bracket arrangement
• 21188784 - later left/right support brackets
• 21188785 - later left/right support brackets
• 21663749 - later fan-shroud and grille components
• 21188620 - later fan-shroud and grille components

📦 Condition

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