181624 Needle Roller Bearing | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta needle roller bearing is a precision rolling-element or raceway component used in the legacy lower-gear needle-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 specified lower-gear shaft using compact needle rollers. Selection must be confirmed by OEM part number 181624, the exact engine/product model, serial number and installed configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-300A-G
• Volvo Penta D6-340A-G
• Volvo Penta D6-380A-G
• Volvo Penta DPI-A
• Volvo Penta D6-400A-G
• Volvo Penta D6-440A-G
• Volvo Penta D4-150A-G
• Volvo Penta D4-230A-G
• Volvo Penta D4-270A-G
• Volvo Penta D4-320A-G
• Volvo Penta D4-300A-G

• Engine Family: D, DPI
• HP Range: 150-440 HP

⚙️ Key Features

• OEM Volvo Penta part number 181624
• Needle roller bearing
• Net weight 0.043 kg
• Fits D series marine diesel engines and DPI sterndrives

🔌 Function

Supports the specified lower-gear shaft using compact needle rollers. 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

• Whining or rumbling from the bearing position
• Scoring or brinelling of the shaft it runs on
• Rollers loose or missing from the cage
• Play or vibration developing at the shaft
• Steel particles in the gear oil

🛠️ Service Notes

• Press needle roller bearings in with a correctly sized mandrel — never drive them with a hammer, and never strike the cage or the shell directly
• Press on the marked end face of the shell and keep the bearing square to the bore; a drawn cup that tilts as it enters is scrap
• Check the bore and shaft for wear, scoring and size before fitting, and make sure both are spotlessly clean, as a needle bearing has no tolerance for grit
• Press to the depth called for by the workshop procedure rather than driving it hard up against a shoulder
• Leave the protective grease in place until fitting, handle the needles with clean hands only, and prime the bearing with the lubricant specified for that assembly before it goes into service

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 23265931 lower-gear service assembly reference

Other-Brand OEM Numbers

• INA: HK3020-B
• NTN: HK3020
• NTN: HK3020-LL/3AS
• Koyo: HK3020

Aftermarket / Verified Equivalents

• CX: HK3020

📦 Condition

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