20544667 Crankcase | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta crankcase is an OEM service component used in the Engine Crankcase / Cylinder-Block Lower Structure. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo D7A Stage 2 / Tier 2 industrial diesel application. Technical identification: Standard crankcase for Stage 2/Tier 2 D7A-B TA engines. In service, it forms the lower structural engine assembly and provides the accurately machined interfaces for the crankshaft, oil system and adjoining castings. Selection must be confirmed by OEM part number 20544667, the exact model/product number, serial number and installed assembly configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-B TA
• Volvo Penta D7C-TA
• Volvo Penta TAD721GE
• Volvo Penta TAD722GE
• Volvo Penta TAD722VE
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4

• Engine Family: D, TAD

⚙️ Key Features

• Genuine Volvo Penta OEM crankcase
• OEM part number 20544667
• Technical distinction: Standard crankcase for Stage 2/Tier 2 D7A-B TA engines
• Measure all critical bores and deck interfaces, clean every oil/coolant gallery and follow the specified tightening sequence and bearing/liner procedure.

🔌 Function

Forms the lower structural engine assembly and provides the accurately machined interfaces for the crankshaft, oil system and adjoining castings. Measure all critical bores and deck interfaces, clean every oil/coolant gallery and follow the specified tightening sequence and bearing/liner procedure.

⚠️ Common Signs of Failure

• Coolant entering oil, oil entering coolant or unexplained fluid loss
• Low compression or combustion leakage between cylinders/coolant passages
• Cracking, corrosion or erosion around deck and liner locations
• Main-bearing, camshaft or liner-bore wear outside specification
• External leakage or repeated gasket failure from distorted faces

🛠️ Service Notes

• A crankcase is a machining and measuring job rather than a bolt-on part: bores, bearing housings, faces and threads all need checking and building up to the figures for your engine
• Transfer everything the old crankcase carried, and fit new bearings, gaskets, seals and any stretch or single-use bolts throughout
• Clean out all oil galleries, coolant passages and threads and blow them through before assembly; a new casting still arrives with protective coating and machining debris
• Check mating faces, spigots and dowels for flatness and damage, and take clearance and end float measurements as you build rather than assuming them
• Prime the lubrication system and confirm oil pressure before a freshly built engine is loaded, and follow the running-in procedure for your engine

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20544667 → Supersedes 20450768

OEM / Related Numbers

• 20450768 earlier number superseded by this part

📦 Condition

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