21408647 Bracket | Genuine Volvo Penta Part

🔧 Product Description

Structural mounting bracket for the electro-hydraulic steering servo unit used on specified Volvo Penta EVC sterndrive installations. It holds the servo in the designed position relative to the hydraulic tubing, position sensor and safety enclosure so steering loads and vibration are transferred through the correct mounting points.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 260-435 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta steering-servo mounting bracket
• Used with EVC electro-hydraulic steering hardware
• Maintains correct servo, tube and sensor alignment
• Reduces vibration and hose strain at the servo assembly
• Direct replacement for a bent, cracked or corroded original bracket
• Engine type: Electronically controlled Volvo Penta marine diesel sterndrive system

🔌 Function

Secures the steering servo unit and keeps its hydraulic and electrical interfaces correctly aligned during steering operation.

⚠️ Common Signs of Failure

• Cracks around mounting holes or formed bends
• Servo movement or steering-system vibration
• Repeated loosening of servo fasteners
• Hydraulic tubes pulled out of alignment
• Corrosion or impact distortion around the bracket

🛠️ Service Notes

• Offer the bracket up and start every fastener by hand before tightening any of them, so the component is not pulled into a strained position
• Check the mating faces are clean, flat and free of corrosion scale — a bracket that does not sit flat will work loose and let the component move
• Renew self-locking nuts, lock washers, tab washers or thread-locking compound wherever the original assembly used them, and tighten to the figure given in the workshop manual for your engine
• Where the bracket carries a rubber mount or bush, renew that at the same time rather than reusing a perished one
• On brackets in the inlet and exhaust area, never force alignment to make the holes line up — cure the misalignment at its source, or the bracket and the component it holds will both crack

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21642833 - associated servo unit
• 3801461 - related servo reference
• 21147917 - associated steering-position sensor kit
• 21673149 - associated safety box
• 3587842 - associated hydraulic tubing
• 3862558 - associated hydraulic tubing

OEM Reman Alternatives

• 3801402 - associated remanufactured servo unit

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330D-E, D6-370D-E, D6-370D-B, D6-330D-B, D6-370D-A, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370D-F, D6-300D-F, D6-310D-B, D6-310D-D, D6-310D-C, D6-310D-E, D6-435D-A, D6-435D-D, D6-435D-E, D6-435D-F, D6-435D-C
• Volvo Penta D4-260D-B, D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-300D-A, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F
• Volvo Penta IPS-C, IPS-D, IPS-E, IPS-F
• Volvo Penta 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q