21581499 Spacer Plate | Genuine Volvo Penta Part

🔧 Product Description

A genuine spacer plate used in the inlet and exhaust arrangement on Volvo Penta TAD570VE-B and TAD571VE-B industrial diesel engines. It spaces and aligns the adjoining venturi, gasket and EGR or intake components so the gas passage remains correctly positioned and sealed.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD570-72VE
• Volvo Penta TAD570-71VE-B
• Volvo Penta TAD870-73VE

• Engine Family: TAD
• HP Range: Approximately 175-250 HP
• Year Range: Approximately 2011 - 2018

⚙️ Key Features

• Genuine Volvo Penta inlet / EGR spacer plate
• Factory port shape and bolt pattern
• Maintains venturi and gas-passage alignment
• Designed for hot intake and recirculated-exhaust service
• Direct replacement for a distorted, corroded or damaged plate
• Engine type: 5.1L inline four-cylinder turbocharged industrial diesel with emissions control

🔌 Function

Establishes the designed separation and alignment between the venturi and adjoining inlet or EGR components while maintaining an unobstructed gas path.

⚠️ Common Signs of Failure

• Soot or air leakage around the joint
• EGR-flow or intake-pressure fault codes
• Reduced power or unstable engine response
• Warping or corrosion around the port
• Repeated gasket failure caused by an uneven plate

🛠️ Service Notes

• Fit a spacer of the same thickness and type as the one removed — a spacer sets a clearance or an alignment, so substituting one is a change of setting, not a like-for-like repair
• Clean and inspect both faces for burrs, ridges, fretting and distortion, and dress off high spots so the plate seats fully over its whole face
• Keep the original stacking order and orientation where more than one plate or shim is fitted, and note which way round the plate came off
• Renew the gaskets, seals or sealant either side if the joint uses them, and tighten the fasteners evenly to the figures in the workshop manual for your engine
• Where the manual gives a clearance, endfloat or preload to be checked after assembly, measure it rather than assuming the plate has restored it

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21654749 - related gasket
• 22249742 - related venturi

📦 Condition

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