1697112 Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta screw used as a threaded fastener within the engine assembly. It is supplied individually and is also included in repair kit 3099754. It is listed for the TWD1240VE and TAD1250-52VE industrial and generator-set diesel engines.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1240VE
• Volvo Penta TAD1250VE
• Volvo Penta TAD1251VE
• Volvo Penta TAD1252VE
• Volvo Penta TAD1250-52VE
• Volvo Penta TAD1241VE
• Volvo Penta TAD1242VE
• Volvo Penta TAD1241-42VE

• Engine Family: TWD, TAD

⚙️ Key Features

• Long cylinder-head retaining screw for the Knorr LK3986 compressor
• Installed in the compressor component arrangement
• Included in Volvo Penta repair kit 3099754
• Maintains cylinder-head and valve-plate clamping load
• Must be tightened in the specified sequence and to the correct torque
• Engine type: Volvo Penta 12-litre industrial diesel

📋 Kit Contents

• Included in repair kit 3099754.

🔌 Function

The screw clamps components together at the specified torque and holds that clamping load in service. Using the original specification preserves the intended joint strength and thread engagement.

⚠️ Common Signs of Failure

• Loosening or loss of torque at the joint
• Stripped, galled or cross-threaded threads
• Rounded or damaged drive head preventing proper tooling
• Corrosion or pitting in the marine environment
• Stretched or sheared screw after over-torquing

🛠️ Service Notes

• Clean the threads in the casting and check them for damage before fitting; a screw run into a dirty or pulled thread gives a false torque reading and will not hold its load
• Tighten to the torque given in the workshop manual for your engine rather than by feel, and follow the specified sequence where the joint has one
• Use the thread locking or sealing compound the manual calls for at that joint — some screws pass into oil, coolant or fuel space and have to seal as well as clamp
• Renew any screw that is stretched, corroded in the shank, or has damaged threads or a rounded head, and never reuse one that was tightened by a stretch or angle-tighten procedure
• A little marine-grade anti-seize helps later removal where the manual permits it, but keep it off threads that are meant to take a locking compound

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 3099754 - compressor repair kit containing 1697112
• 8122459 - Knorr LK3986 compressor
• 20429341 - later complete compressor
• 1697105 - companion compressor screw
• 1698859 - bearing-cover gasket

📦 Condition

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