181577 Ball Bearing | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta ball bearing is a precision rolling-element or raceway component used in the fuel-injection-pump drive bearing position. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it supports the injection-pump drive shaft/coupling so pump timing remains stable and concentric. Selection must be confirmed by OEM part number 181577, the exact engine/product model, serial number and installed configuration.

🚤 Compatibility

• Engine Family: MD, TMD, D, TD, AQD, TAMD, TWD, TID, THD, THAMD, TAD

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 181577
• Supersedes previous part number 422071
• Net weight 0.431 kg - a larger-section bearing
• Fits MD, TMD, D, TD, AQD and TAMD series engines

🔌 Function

Supports the injection-pump drive shaft/coupling so pump timing remains stable and concentric. Measure shaft and housing fits, renew contaminated lubricant and related seals, and install using force only through the race being fitted. Set preload or end float to the applicable Volvo Penta specification.

⚠️ Common Signs of Failure

• Deep rumbling or growling under load
• Measurable shaft play or run-out
• Rough, notchy rotation by hand
• Heat build-up and lubricant darkening
• Metal particles on the drain plug or in the filter

🛠️ Service Notes

• Work clean — leave the bearing in its wrapping until the moment it goes in, and do not wash the preservative out or blow it dry with compressed air
• Apply the fitting force only to the ring being fitted, through a tube or drift that bears on that ring alone; force pushed through the balls from one ring to the other dents the raceways and the bearing will be noisy and short-lived from the first run
• Where the fit calls for it, expand the inner ring with even, controlled heat rather than driving it on, and never heat a bearing with a flame or beyond the temperature given in the workshop manual for your engine
• Check the shaft and housing seats before fitting — scoring, burrs, corrosion or a worn seat will ruin a new bearing, and fretting marks mean the seat itself needs attention
• Fit the bearing square and fully home against its shoulder, note which way round any sealed, shielded or marked face must go, and lubricate with the grease or oil specified for the application before it is turned under load

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 181577 → Supersedes 422071

OEM / Related Numbers

• 421074 bearing housing
• 422073 shaft
• 471557 shaft
• 11013 ball bearing
• 467347 spacer sleeve

Other-Brand OEM Numbers

• SKF: 6207
• SKF: 6207-J
• NTN: 6207/5C

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TD100ARC, TD100G-85, TD100A, TD100AG, TD100CHC, TD100G, TD100GG, TD100GGP, TD100HP, TD100HPB, TD100GG-85, TD100GP, TD100GP-85, TD100CRC
• Volvo Penta TID121KG, TID121KGP, TID121KP, TID121KPB, TID121L, TID121LG, TID121LGP, TID121LP, TID121LPB, TID121FG, TID121K, TID121K-87
• Volvo Penta TD120C, TD120A, TD120G, TD120GG PP, TD120HP, TD120HPP, TD120GG, TD120AHC, TD120ARC, TD120BHC, TD120BRC
• Volvo Penta TD121G-87, TD121GGP-87, TD121G, TD121GG, TD121GGP, TD121GP, TD121GPB, TD121CHC, TD121CRC
• Volvo Penta TID100KG, TID100KGP, TID100K, TID100K-87, TID100KGP-87, TID100KP, TID100KP-87, TID100KPB-87
• Volvo Penta TD61A, TD61ACE, TD61AG, TD61AGP, TD61AP, TD61APB, TD61AW
• Volvo Penta TD71A, TD71ACE, TD71AG, TD71AGP, TD71AP, TD71APB, TD71AW
• Volvo Penta AQD70B, AQD70BL, AQD70CL, AQD70D, AQD70C
• Volvo Penta TD70CHC, TD70CRC, TD70G, TD70B, TD70G-83
• Volvo Penta TID71A, TID71AG, TID71AGP, TID71AP, TID71APB
• Volvo Penta TAMD70B, TAMD70E, TAMD70C, TAMD70D
• Volvo Penta TWD710G, TWD710P, TWD710PB, TWD710V
• Volvo Penta D70CHC, D70CRC, D70B
• Volvo Penta MD100A, MD100B, MD100B-CC
• Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
• Volvo Penta TAMD122A, TAMD122A/C, TAMD122D
• Volvo Penta THD102KB, THD102KD, THD102K-KB
• Volvo Penta TWD1210G, TWD1210P, TWD1210V
• Volvo Penta TWD1211V, TWD1211P, TWD1211G
• Volvo Penta D100A, D100B
• Volvo Penta MD70B, MD70C
• Volvo Penta TAD1030V, TAD1030VE
• Volvo Penta TAMD120A, TAMD120B
• Volvo Penta TAMD71B, TAMD71A
• Volvo Penta TD730ME, TD730VE
• Volvo Penta THAMD70C, THAMD70B
• Volvo Penta TID120FG, TID120HPP
• Volvo Penta TID61AG, TID61AGP
• Volvo Penta TMD100A, TMD100C
• Volvo Penta TMD120A, TMD120B
• Volvo Penta TMD70C, TMD70B
• Volvo Penta D120A
• Volvo Penta MD120A
• Volvo Penta TAD121CHC
• Volvo Penta TAMD102A
• Volvo Penta TAMD121D
• Volvo Penta TAMD61A
• Volvo Penta TAMD62A
• Volvo Penta TAMD63L-A
• Volvo Penta TD1010G
• Volvo Penta TD1030VE
• Volvo Penta TD1210G
• Volvo Penta TD710G
• Volvo Penta TID70G
• Volvo Penta TMD102A
• Volvo Penta TMD121C
• Volvo Penta TMD122A
• Volvo Penta TWD1010G
• Volvo Penta TWD1030ME
• Volvo Penta TWD1031VE
• Volvo Penta TWD1230ME
• Volvo Penta TWD731VE