183649 Inner Ring | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta inner ring is a precision rolling-element or raceway component used in the HS1A reverse-gear tapered-bearing inner-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 inner rings are used in the documented HS1A arrangement. In service, it provides the hardened inner raceway for the paired tapered-bearing cup in the HS1A shaft assembly. Selection must be confirmed by OEM part number 183649, 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 183649
• Inner ring (cone) of a tapered roller bearing, with rollers
• Net weight 0.551 kg
• Fits TMD, AD, HS, TAMD, KAD and KAMD series engines and drives

🔌 Function

Provides the hardened inner raceway for the paired tapered-bearing cup in the HS1A shaft assembly. 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

• Growling or rumbling varying with load
• Flaking, pitting or spalling of the tapered raceway
• Heat discolouration of ring or rollers
• Uneven drag or roughness when rotated
• Metal debris in the oil

🛠️ Service Notes

• Renew the inner ring together with the race or bearing it runs against; the two wear as a matched pair and a new ring running in a used race will not last
• Press the ring on squarely, driving only on the face of the ring with a tube or driver that bears on the ring itself — never through the rollers or against the cage
• Check that the shaft or housing seat is clean, undamaged and free of burrs, and that the ring goes fully home against its shoulder
• Where the ring is a heat fit, warm it evenly by the method the workshop manual for your engine describes rather than heating it locally with a flame
• Lubricate the bearing on assembly as the manual specifies, and set any shimming or preload the assembly calls for using the manual's own measuring procedure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 183403 matching cup

📦 Condition

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