11711242 Adjusting Washer | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta adjusting washer from the fuel system group, supplied in the 1.74 mm thickness. Shims of this type are selected by thickness to set the correct clearance or height during fuel system assembly, so ordering the exact dimension matters. It supersedes the earlier 1.75 mm shim, part number 870272.

🚤 Compatibility

• Engine Family: TWD, TID, TD, TAMD, TAD
• HP Range: Approximately 300-700 HP
• Year Range: Approximately 1970s - early 2000s

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 11711242
• Thickness: 1.74 mm - thickness-specific component, not interchangeable with other shim sizes
• System group: Fuel System
• Supersedes previous part number 870272 (1.75 mm shim)
• Fits TAMD162, TAMD163, TAMD165, TAD1630/1631, TWD1620/1630, TID162 and TD164 series engines
• Engine type: Volvo Penta mechanically injected large-displacement marine and industrial diesel

🔌 Function

The adjusting washer acts as a calibrated spacer within the fuel system, its precise thickness setting the required clearance or component height during assembly or overhaul. Selecting the correct shim thickness ensures fuel delivery components operate within their specified tolerances.

⚠️ Common Signs of Failure

• Incorrect or drifting fuel injection timing after service
• Measured clearance or component height falls outside the specified tolerance
• Visible wear, scoring or deformation of the shim face
• Fuel weepage or leakage at the shimmed joint
• Rough running, hard starting or reduced power traced to fuel system adjustment

🛠️ Service Notes

• An adjusting washer is a precision-thickness shim: the correct one is whichever thickness gives the dimension called for in the workshop manual, so it is chosen by measurement rather than by simply matching what came out
• Measure the washer itself with a micrometer before fitting — thickness is the whole function, and markings or part numbers are no substitute for a measured figure
• Do not reuse a washer that is dished, indented, scored or corroded; a shim that has been distorted under clamp load will not restore the original setting
• Clean the seat and the washer of oil, old sealant and burrs so the stack sits dead flat — a trapped burr is thicker than the tolerance you are shimming to
• Where washers are refitted rather than renewed, keep each one with the component and position it came from, and record the thickness used so the setting can be reproduced later

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 11711242 → Supersedes 870272

OEM / Related Numbers

• 870272 earlier number superseded by this part

Other-Brand OEM Numbers

• Bosch: 2 430 102 974
• Mercedes-Benz: 000 017 51 52 / 001 290 468

Aftermarket / Verified Equivalents

• DTP Motorteile: DTP 35 333
• KHD / Magirus-Deutz: 01290468

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAD1630G, TAD1630GE, TAD1630P, TAD1630PB
• Volvo Penta TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
• Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
• Volvo Penta TWD1630G, TWD1630P, TWD1630PP, TWD1630V
• Volvo Penta TAMD165A, TAMD165C, TAMD165P
• Volvo Penta TAD1631GE, TAD1631G
• Volvo Penta TAMD163P-A
• Volvo Penta TD164KAE
• Volvo Penta TWD1620G