11705718 Shim | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta fuel system shim in the 1.08 mm thickness, used to set the correct clearance or calibrated height within the fuel injection assembly. Thickness is the only thing that separates this shim from otherwise identical siblings, so confirm that 1.08 mm is the value called for by your engine's specification before ordering. It is the current replacement for the earlier part number 6885721 and covers AD31, AD41, TMD31, TAMD31, TAMD41, TAMD42, KAD42/43 and KAMD42/43 series engines.

🚤 Compatibility

• Engine Family: TAMD, AD, TMD, KAD, KAMD
• HP Range: Approximately 7.5-300 HP
• Year Range: Approximately mid-1970s - 2005

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 11705718
• Thickness: TH = 1.08 mm
• System group: Fuel System
• Supersedes and replaces part number 6885721
• Fits AD31, AD41, TMD31, TAMD31, TAMD41, TAMD42, KAD42/43 and KAMD42/43 series marine diesel engines
• Engine type: Volvo Penta mechanically injected marine diesel

🔌 Function

The shim acts as a precision spacer that sets a specified clearance, preload or calibrated height inside the fuel injection system. Selecting the correct thickness ensures the assembly delivers fuel at the intended timing and pressure.

⚠️ Common Signs of Failure

• Incorrect injection timing or fuel delivery after component replacement when the wrong shim thickness is fitted
• Hard starting, rough running or reduced power traceable to fuel system clearance being out of specification
• Visible wear, pitting or deformation of the shim face
• Fuel weeping or seepage at the shimmed joint
• Corrosion or distortion after long service, preventing correct seating

🛠️ 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 Supersession Chain

• 11705718 → Supersedes 6885721

OEM / Related Numbers

• 6885721 earlier number superseded by this part

Other-Brand OEM Numbers

• Bosch: 2 430 102 108
• Case IH: 1806235C1
• Cummins: 3905158
• Renault: 5001850234
• Iveco: 9972022

Aftermarket / Verified Equivalents

• Magirus-Deutz: 01319975
• Magirus-Deutz: 01319976

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD31L-A, TAMD31M, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31D
• Volvo Penta AD31D, AD31D-A, AD31L-A, AD31P-A, AD31XD
• Volvo Penta AD41D, AD41L-A, AD41P-A
• Volvo Penta KAD42B, KAD42P-A
• Volvo Penta KAMD42B, KAMD42P-A
• Volvo Penta TAMD41H-A, TAMD41P-A
• Volvo Penta KAD43P-A
• Volvo Penta KAMD43P-A
• Volvo Penta TAMD42WJ-A
• Volvo Penta TMD31D