991173 Roller Bearing | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta roller bearing weighing 0.633 kg and listed for 30 applications across the D and IPS series. It is the lighter of the two bearings in this run — the needle roller bearing 993204 is published at 1.252 kg over 17 D and IPS applications — but no bore, outside diameter or width is published for either, so confirm the application rather than working from the weight.

🚤 Compatibility

• Engine Family: D, IPS

Full model list at the end of this description.

⚙️ Key Features

• 0.633 kg
• 30 applications across the D and IPS series
• No published bore, outside diameter or width
• Distinct from the needle roller bearing 993204

🔌 Function

Carries a rotating shaft on hardened rollers, supporting its load while keeping friction and running clearance under control.

⚠️ Common Signs of Failure

• Rumbling, growling or a cyclic whine that rises with shaft speed
• Roughness or notchiness felt when the shaft is turned by hand
• Play or rock at the shaft that was not there before
• Bright metallic glitter in the drained oil
• Races or rollers found spalled, pitted or blued on strip-down

🛠️ Service Notes

• Renew the mating seals and any shims disturbed on the same strip — several graded shim sets in this group serve bearing stacks on the same D and IPS applications
• Look for the cause before condemning the bearing: contaminated or low oil and a picked-up shaft will destroy a new bearing just as fast

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C2-B MP, D13C2-A MP, D13C4-A MP, D13B-L MP, D13B-G MP, D13B-K MP, D13B-C MP, D13C6-A MP, D13C4-B MP, D13C5-B MP, D13C5-A MP, D13C7-B MP, D13C8-B MP
• Volvo Penta D11C2-A MP, D11C4-A MP, D11B4-A MP, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP
• Volvo Penta IPS2-C, IPS2-A, IPS2-B
• Volvo Penta IPS20-D, IPS20-E
• Volvo Penta IPS3-C, IPS3-A
• Volvo Penta IPS30-E, IPS30-D
• Volvo Penta D8A4-A MP