978915 Shim | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shim 0.50 mm thick, listed for 14 applications across TMD, AD, HS, TAMD, KAD and KAMD engines. A second 0.50 mm shim, 978917, is listed here against a different and wider application set, so the engine family matters as much as the thickness when ordering this one.

🚤 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

• 0.50 mm thick
• Fits 14 applications across TMD, AD, HS, TAMD, KAD and KAMD engines
• A second 0.50 mm shim, 978917, covers a different application set
• Part of the 0.10 to 0.55 mm graded range for this fitment

🔌 Function

Takes up a measured amount of endfloat or clearance in an assembly, so the stack can be set to specification by selecting a thickness.

⚠️ Common Signs of Failure

• Endfloat or clearance measuring outside specification on assembly
• Shim found dished, bruised or picked up on strip-down
• Bright fretting marks on the shim faces
• Whine, knock or rumble traced to a slack stack
• Shim cracked or broken into pieces

🛠️ Service Notes

• Two 0.50 mm shims are listed here — this one for TMD, AD, HS, TAMD, KAD and KAMD, and 978917 for D, TMD, AD, IPS, HS and TAMD. Check the family before ordering
• The range for this fitment runs 977913 at 0.10 mm, 977914 at 0.15 mm, 978912 at 0.30 mm, 977915 at 0.35 mm, 978913 at 0.40 mm, 978914 at 0.45 mm, 978915 at 0.50 mm and 978916 at 0.55 mm
• Order by measured thickness only — the published weights across this range do not follow the thickness

📦 Condition

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