21388224 Service Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta comprehensive trim-cylinder repair package for DPH sterndrives. The kit extends beyond the seal-only pack and provides the matched service components required for a complete hydraulic cylinder overhaul.

🚤 Compatibility

• Year Range: Approximately mid-2000s onward

⚙️ Key Features

• Genuine Volvo Penta complete trim-cylinder service kit
• Approximate packaged weight 1.97kg
• Includes sealing and internal service components
• Designed for DPH hydraulic trim cylinders
• More comprehensive than seal kit 21388223
• Engine type: Volvo Penta DPH sterndrive hydraulic trim system

📋 Kit Contents

• 1 x complete DPH trim-cylinder overhaul package - Volvo Penta 21388224
• Matched cylinder sealing components - related seal kit Volvo Penta 21388223
• Internal wear and retaining components are supplied under complete service-kit number 21388224; the public catalogue does not publish the full individual breakdown

🔌 Function

The kit restores the cylinder's hydraulic sealing, internal guidance and retaining components so the drive can trim smoothly and hold position.

⚠️ Common Signs of Failure

• Cylinder leaks after a seal-only repair
• Rod or internal guide components are worn
• Drive will not hold trim angle
• Cylinder is scored or mechanically damaged
• A complete cylinder overhaul is required

🛠️ Service Notes

• Service kits are built for a specific engine family and serial-number range, and contents change between builds — confirm the kit against your engine's serial number before ordering
• Check the kit against the job before you start and fit it complete; leaving out the parts that still look serviceable defeats the point of a kit
• Renew every gasket, seal and O-ring supplied even where the old ones appear sound, and follow the tightening sequences and figures in the workshop manual for your engine
• Record the work and the engine hours when the kit goes in, so the next service falls due at the interval Volvo Penta specifies for your engine

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21388224 → Supersedes 877095

OEM / Related Numbers

• 877095 earlier number superseded by this part
• 21388223 related sealing kit

📦 Condition

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