1257499 Spacer Sleeve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta spacer sleeve for D3 series marine diesel engines. This small precision sleeve sets and maintains the correct standoff and clamping length between mating components during assembly, keeping fasteners and mounted parts correctly positioned. It is a low-cost consumable item that is best replaced whenever the assembly it supports is disturbed during service.

🚤 Compatibility

• Engine Family: D
• HP Range: 110-220 HP
• Year Range: Approximately 2004 onward, controlled by D3 model suffix and engine-casing configuration

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1257499
• Fits D3 series marine diesel engines in both inboard and sterndrive configurations
• Net weight approximately 0.011 kg
• Supplied as a single spacer sleeve
• Engine type: Volvo Penta 2.4L inline 5-cylinder common-rail marine diesel

🔌 Function

The spacer sleeve maintains a fixed distance between two components and provides a defined bearing surface for a fastener, preventing over-compression of the joint. It ensures assembled parts sit at their designed position and clamp load.

⚠️ Common Signs of Failure

• Visible crushing, deformation or flattening of the sleeve ends
• Fasteners that will not hold torque or repeatedly loosen
• Corrosion, pitting or scoring on the sleeve body
• Misalignment or excessive movement of the component the sleeve supports
• Rattling or vibration noise from the mounted assembly

🛠️ Service Notes

• A spacer sleeve sets a fixed length in the joint — never leave one out, shorten one, or substitute a stack of washers, or the clamping load and alignment will both be wrong
• Check that the sleeve is square and fully seated in its counterbore or recess before any fastener is tightened
• Discard a sleeve that is crushed, bell-mouthed, scored or corroded; a shortened sleeve lets the joint be over-clamped and the component distorted
• On sleeves in an oil circuit, make sure the bore is clear and that any seal running on the sleeve has a clean, unscored surface to work against
• Tighten the joint to the figure in the workshop manual for your engine, with the sleeve taking the clamping load rather than the component it protects

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 952634 related clamp
• 965217 related flange screw, quantity 2
• 993933 related washer, quantity 2
• 22475684 related bracket
• 21441581 related bracket
• 21447773 related plate
• 21441601 related bracket
• 21441515 related vibration damper

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D3-220I-G, D3-140A-D, D3-170A-D, D3-200A-D, D3-220A-D, D3-140I-D, D3-140A-E, D3-170A-E, D3-200A-E, D3-220A-E, D3-140I-E, D3-140A-F, D3-170A-F, D3-200A-F, D3-220A-F, D3-140I-F, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-110I-D, D3-150I-D, D3-170I-D, D3-200I-D, D3-220I-D, D3-110I-E, D3-150I-E, D3-170I-E, D3-200I-E, D3-220I-E, D3-110I-F, D3-150I-F, D3-170I-F, D3-200I-F, D3-220I-F, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H