21141955 Thrust Washer | Genuine Volvo Penta Part

🔧 Product Description

Volvo Penta lists this part as the thrust washer kit supplied inside its published overhaul kits. It appears in 9 of them: 877645 for TAD520VE (Tier 1); 3843579 for TAD520GE (Tier 2); 3842345 for TD520GE (Tier 1), TAD520GE (Tier 1); 3842346 for TD720GE (Tier 1), TAD720GE (Tier 1); 877646 for TAD720VE (Tier 2), TAD721VE (Tier 2); 3843580 for TAD720GE (Tier 2); 3843791 for TAD721GE (Tier 2), TAD722GE (Tier 2); 3594243 for TAD734GE; 3884938 for TAD750VE, TAD760VE.

🚤 Compatibility

• Engine Family: D, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• Standard thickness thrust washer
• Two used per engine
• Hardened bearing surface for axial crankshaft load
• Works with the standard main-bearing arrangement
• One washer supplied; order the required pair unless packaged as a set
• Engine type: Volvo Penta D5/D7 industrial diesel
• Quantity varies by assembly, most commonly two
• Listed by Volvo Penta as the thrust washer kit in its overhaul kits
• 1 off in overhaul kit 877645 (TAD520VE (Tier 1))
• 1 off in overhaul kit 3843579 (TAD520GE (Tier 2))
• 1 off in overhaul kit 3842345 (TD520GE (Tier 1), TAD520GE (Tier 1))
• 1 off in overhaul kit 3842346 (TD720GE (Tier 1), TAD720GE (Tier 1))
• 1 off in overhaul kit 877646 (TAD720VE (Tier 2), TAD721VE (Tier 2))
• 1 off in overhaul kit 3843580 (TAD720GE (Tier 2))
• 1 off in overhaul kit 3843791 (TAD721GE (Tier 2), TAD722GE (Tier 2))
• 2 off in overhaul kit 3594243 (TAD734GE)
• 1 off in overhaul kit 3884938 (TAD750VE, TAD760VE)
• Used in overhaul kits: 877645 x1 (TAD520VE (Tier 1)); 3843579 x1 (TAD520GE (Tier 2)); 3842345 x1 (TD520GE (Tier 1), TAD520GE (Tier 1)); 3842346 x1 (TD720GE (Tier 1), TAD720GE (Tier 1)); 877646 x1 (TAD720VE (Tier 2), TAD721VE (Tier 2)); 3843580 x1 (TAD720GE (Tier 2)); 3843791 x1 (TAD721GE (Tier 2), TAD722GE (Tier 2)); 3594243 x2 (TAD734GE); 3884938 x1 (TAD750VE, TAD760VE)

🔌 Function

Controls crankshaft end-float and absorbs axial loads from the flywheel, clutch or driven equipment.

⚠️ Common Signs of Failure

• Excessive crankshaft end-float
• Clunk when load direction changes
• Wear at the crankshaft thrust faces
• Metal in engine oil
• Crankshaft movement affecting seals or timing components

🛠️ Service Notes

• Note which way round each washer comes off and refit it the same way; where one face is grooved or lined, that face runs against the moving part
• Measure the end float or running clearance after fitting and compare it with the figure in the workshop manual for your engine — thrust washers are what sets it, and some are supplied in more than one thickness
• Renew the pair or the full complement together, never one new washer alongside a used one
• Check the faces the washer bears against for scoring, ridging or heat discolouration and clean off any pick-up before assembly
• Oil the washer and its seat on assembly and prime the lubrication system before the engine is turned under power
• Volvo Penta's overhaul kits call for 1 or 2 off of this part, the count following the number of cylinders

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21141955 → Supersedes 20405899 → Supersedes 11700314

OEM / Related Numbers

• 20405899 earlier number superseded by this part
• 877338 earlier number superseded by this part
• 11700314 earlier number superseded by this part
• Oversize washer 21141963

Other-Brand OEM Numbers

• VOE21141955

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD560VE
• Volvo Penta TAD561VE
• Volvo Penta TAD734GE
• Volvo Penta TAD750GE
• Volvo Penta TAD751GE
• Volvo Penta TAD752GE
• Volvo Penta TAD753GE
• Volvo Penta TAD754GE
• Volvo Penta TAD761VE
• Volvo Penta TAD762VE
• Volvo Penta TAD763VE
• Volvo Penta TAD764VE
• Volvo Penta TAD765VE