21136725 Sleeve | Genuine Volvo Penta Part

🔧 Product Description

A precision sleeve used to guide, space, seal or protect the adjoining component in the 13-litre electronically controlled marine diesel assembly. Its bore and length establish the required alignment or installed depth.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD734GE

• Engine Family: TAD

⚙️ Key Features

• Precision bore and length
• Hardened or corrosion-resistant material as required
• Application-specific press or sliding fit
• Controls alignment and installed depth
• Must be inspected with the mating component
• Engine type: 13-litre electronically controlled marine diesel
• 2 used per assembly

🔌 Function

Maintains component alignment and spacing while providing a controlled wear or sealing surface.

⚠️ Common Signs of Failure

• Hardening, cracking or deformation
• Damaged sealing surface or threads
• Recurring failure caused by an incorrect mating component

🛠️ Service Notes

• Check which way round the sleeve goes before the old one comes out — sleeves are rarely symmetrical, and one end is usually chamfered or stepped to lead into the bore
• Clean and inspect the bore it seats in; a sleeve takes its final shape and fit from that bore, so corrosion, scoring or an oval bore will spoil a new part
• Draw or press the sleeve in square with the correct tool rather than driving it in — a sleeve started crooked will nip, and the material displaced by a hammer blow never fully recovers
• Renew any O-ring, seal or gasket that seats against the sleeve while it is out, and lubricate on assembly as the manual for your engine specifies
• Confirm the sleeve is fully home to the depth or flush condition the workshop manual gives before reassembling anything on top of it

📦 Condition

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