877646 Overhaul Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta overhaul kit for TAD720VE (Tier 2), TAD721VE (Tier 2). Volvo Penta publishes the kit contents in full: cylinder liner kit 3843536 (6 off); main bearing kit 21141948 (7 off); thrust washer kit 21141955 (1 off); big end bearing kit 20565150 (6 off); gasket kit 21808529 (1 off); flange screw 11700326 (12 off). The gasket kit in it covers the inlet and exhaust, de-carbonising, turbo connection and additional gaskets.

🚤 Compatibility

Typically suits:

• Volvo Penta TD720VE PP
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-TA
• Volvo Penta D7C-A TA
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE

• Engine Family: TD, D, TAD

⚙️ Key Features

• For the TAD720VE and TAD721VE
• 35.834 kg
• Supersedes 3843580 and 877647
• Listed for 7 applications across TD, D and TAD engines
• Overhaul kit for TAD720VE (Tier 2), TAD721VE (Tier 2)
• Cylinder liner kit - part number 3843536 - quantity 6
• Main bearing kit - part number 21141948 - quantity 7
• Thrust washer kit - part number 21141955 - quantity 1
• Big end bearing kit - part number 20565150 - quantity 6
• Gasket kit (incl. inlet/exhaust, de-carbo, turbo connect, additional gaskets) - part number 21808529 - quantity 1
• Flange screw - part number 11700326 - quantity 12
• Engines: TAD720VE (Tier 2), TAD721VE (Tier 2)
• Kit contents: Cylinder liner kit 3843536 x6; Main bearing kit 21141948 x7; Thrust washer kit 21141955 x1; Big end bearing kit 20565150 x6; Gasket kit 21808529 x1; Flange screw 11700326 x12

🔌 Function

Groups the parts Volvo Penta lists for an overhaul of this engine under one number, so the rebuild is ordered in a single line rather than assembled piece by piece.

⚠️ Common Signs of Failure

• Blue smoke once the engine is warm
• Oil consumption climbing between services
• Compression down across the cylinders
• Heavy crankcase breathing
• Power loss under load

🛠️ Service Notes

• Both superseded numbers resolve to this kit
• At 35.834 kg it ships palletised rather than as a parcel
• Check the engine designation, and the emissions tier where one is quoted, against the kit before ordering - the same engine family has separate kits for Tier 1 and Tier 2
• The kit is supplied as a matched set; the contents above are what Volvo Penta publishes for it, so anything else the stri

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 877646 → Supersedes 3843580

OEM / Related Numbers

• 877647 earlier number superseded by this part
• 3843580 earlier number superseded by this part

📦 Condition

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