183403 Cup | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta cup is a precision rolling-element or raceway component used in the HS1A reverse-gear tapered-bearing outer-race 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. Two cups are used in the documented HS1A arrangement. In service, it provides the hardened outer raceway for the paired HS1A tapered-bearing inner ring. Selection must be confirmed by OEM part number 183403, the exact engine/product model, serial number and installed configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD31D
• Volvo Penta TMD41B
• Volvo Penta AD31D
• Volvo Penta AD31D-A
• Volvo Penta AD31XD
• Volvo Penta HS1A
• Volvo Penta HS1E
• Volvo Penta HS1E-A
• Volvo Penta TAMD41B
• Volvo Penta TAMD31M
• Volvo Penta TAMD31D
• Volvo Penta TAMD42B
• Volvo Penta KAD42B
• Volvo Penta KAMD42B

• Engine Family: TMD, AD, HS, TAMD, KAD, KAMD

⚙️ Key Features

• OEM Volvo Penta part number 183403
• Bearing cup (outer race) for a tapered roller bearing
• Net weight 0.336 kg
• Fits TMD, AD, HS, TAMD, KAD and KAMD series engines and drives

🔌 Function

Provides the hardened outer raceway for the paired HS1A tapered-bearing inner ring. 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

• Rumbling or grinding from the bearing housing
• Pitting, flaking or scoring of the raceway
• Heat discolouration of the race
• Rough or notchy feel when the shaft is turned
• Metal particles in the oil

🛠️ Service Notes

• Renew the cup and its matching cone or roller assembly together as a set; a new roller set run in a used cup will not last
• Clean the housing bore and check it for wear, scoring and corrosion, and remove any burr so the cup can seat properly
• Drive or press the cup in square, bearing only on its back face with a tool that matches its diameter, until it is hard against its shoulder — a cup that is not fully home throws the whole bearing setting out
• Never strike a bearing race directly with a steel hammer and never press through the rollers
• Lubricate with the specified oil or grease and set the bearing preload or end float by the method and figures given in the workshop manual for your unit

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 183649 matching inner ring

📦 Condition

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