191840 Shim | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta shim is a precision-thickness adjustment shim used to establish bearing preload, shaft end float or gear position used in the MS3B reverse-gear shaft or bearing clearance adjustment. It is manufactured to the original Volvo Penta dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. Thickness: 0.15 mm. In service, it sets the specified bearing or shaft end float in the reverse gear. Selection must be confirmed by OEM part number 191840, the exact engine or product model, serial number and installed configuration.

🚤 Compatibility

• Engine Family: MD, AQ, TMD, AD, AQAD, D, BB, MS, B, AQD, TAMD, MB

Full model list at the end of this description.

⚙️ Key Features

• OEM part number 191840
• Thickness: 0.15 mm.
• Measure the assembly using the specified workshop procedure and select the required shim combination; do not substitute an unmeasured thickness.

🔌 Function

Sets the specified bearing or shaft end float in the reverse gear. Measure the assembly using the specified workshop procedure and select the required shim combination; do not substitute an unmeasured thickness.

⚠️ Common Signs of Failure

• Excessive shaft end float or incorrect bearing preload
• Gear whine, rumble or abnormal contact pattern
• Bearing overheating from insufficient clearance
• Impact loading, fretting or broken gear teeth from excessive clearance
• Distorted, scored or incorrectly stacked shims discovered during overhaul

🛠️ Service Notes

• Shims are supplied in graded thicknesses and exist to bring a setting into specification, so measure with a micrometer and select the thickness the setting procedure for your engine calls for rather than matching one by eye
• Note which shim came from which position on removal and keep them identified — once an assembly has bedded in, shims are not interchangeable between positions
• Check both faces are clean, flat and free of burrs, corrosion and old sealant before fitting; dirt trapped under a shim shifts the setting as surely as the wrong thickness does
• Discard any shim that is dished, cracked, pitted or fretted rather than reusing it, and make sure no old shim has been left behind in the recess
• Recheck the clearance or setting after the assembly is tightened down, because clamping load can change the measurement you took loose

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 87655 0.10 mm shim

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 2003, 2003R, 2003R SOLAS, 100S, 110S, 120S-B, 740A, 2003TB, 2003TB SOLAS, 120SC, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 2002, 2001R
• Volvo Penta MS2B-A, MS2B-L, MS2L-E, MS2B, MS2V, MS2A-D, MS2A-E
• Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
• Volvo Penta AQ170B, AQ170C, AQ170A
• Volvo Penta BB115A, BB115B, BB115C
• Volvo Penta BB170B, BB170C, BB170A
• Volvo Penta BB260AV, BB260B, BB260C
• Volvo Penta MB20A, MB20B, MB20C
• Volvo Penta MD5A, MD5B, MD5C
• Volvo Penta TMD40A, TMD40B, TMD40C
• Volvo Penta AD31, AD31B
• Volvo Penta AQ115A, AQ115B
• Volvo Penta AQ260A, AQ260B
• Volvo Penta AQAD40B, AQAD40A
• Volvo Penta AQD21A, AQD21B
• Volvo Penta MD11C, MD11D
• Volvo Penta MD17C, MD17D
• Volvo Penta MD2010-C, MD2010-D
• Volvo Penta MD2020-C, MD2020-D
• Volvo Penta MD2030-C, MD2030-D
• Volvo Penta MD2040-C, MD2040-D
• Volvo Penta MD21B, MD21A
• Volvo Penta MD22, MD22A
• Volvo Penta MD6A, MD6B
• Volvo Penta MD7B, MD7A
• Volvo Penta TAMD31A, TAMD31B
• Volvo Penta TAMD40A, TAMD40B
• Volvo Penta TMD31A, TMD31B
• Volvo Penta AD40B
• Volvo Penta AQ120B
• Volvo Penta AQ125A
• Volvo Penta AQ140A
• Volvo Penta AQ145A
• Volvo Penta AQ165A
• Volvo Penta AQD40A
• Volvo Penta B20
• Volvo Penta BB140A
• Volvo Penta BB145A
• Volvo Penta BB165A
• Volvo Penta BB740A
• Volvo Penta D2002AG
• Volvo Penta D2003AG
• Volvo Penta MD30A
• Volvo Penta MD31A
• Volvo Penta MD40A
• Volvo Penta MD67C
• Volvo Penta MS3B
• Volvo Penta TMD22A