20459748 Sleeve | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta sleeve used in the lubricating-system or engine support assembly. It is supplied as an individual service component under part number 20459748 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in the engine arrangement are serviced separately unless explicitly stated.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1240VE
• Volvo Penta TAD1241VE
• Volvo Penta TAD1242VE
• Volvo Penta TAD1241-42VE

• Engine Family: TWD, TAD

⚙️ Key Features

• Sleeve for the lubricating-system or engine support position
• 0.05 kg
• Supersedes 20430432
• Listed for 4 fitments across the TWD and TAD series
• 14 used per assembly

🔌 Function

Guides, spaces or supports the adjoining component while maintaining the specified fit and alignment.

⚠️ Common Signs of Failure

• The sleeve is worn, scored, cracked or distorted
• Excessive clearance or misalignment develops
• The supported component no longer seats correctly
• Replacement is required during overhaul when wear exceeds the service limit

🛠️ 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

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20459748 → Supersedes 20430432

OEM / Related Numbers

• 20430432 earlier number superseded by this part
• 3831107 - Related oil sump from SN2012427927
• 8170261 - Related oil pump
• 8170878 - Related suction pipe
• 8170430 - Related pressure pipe
• 3155151 - Related piston-cooling jet
• 3807498 - Related oil dipstick

📦 Condition

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