1136965 Nipple | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta cooling system nipple, part number 1136965. It serves as the connection fitting used where the original one-piece coolant tubes 845857 and 845858 have been superseded, joining the replacement hose to the engine's cooling circuit. Two of these nipples are required alongside hose 943366 and two clamps 943469 to complete the updated assembly.

🚤 Compatibility

Typically suits:

• Volvo Penta AQAD40B
• Volvo Penta TD164KAE
• Volvo Penta AQAD40A
• Volvo Penta TAMD40A
• Volvo Penta TAMD40B

• Engine Family: AQAD, TD, TAMD

⚙️ Key Features

• OEM Volvo Penta part number 1136965
• System group: Cooling System
• Replaces earlier coolant tube part numbers 845857 and 845858
• Each superseded tube is replaced by 1x hose 943366, 2x clamp 943469 and 2x nipple 1136965
• Net weight approximately 0.023 kg
• Fits AQAD40, TAMD40 and TD164 series marine diesel engines
• Engine type: Volvo Penta turbocharged 16-litre industrial diesel
• System type: Coolant sensor / thermostat connection

🔌 Function

The nipple provides a sealed, clamped connection point between a coolant hose and the engine's cooling circuit, maintaining coolant flow without leakage. In the updated assembly it takes the place of the rigid ends of the original one-piece coolant tube.

⚠️ Common Signs of Failure

• Coolant weeping or dripping at the hose-to-nipple joint
• Corrosion, pitting or scaling on the fitting surface preventing a proper seal
• Hose blowing off or loosening under pressure due to a worn or damaged sealing bead
• Cracks or distortion from over-tightened clamps
• Coolant loss and rising engine temperature with no visible internal leak

🛠️ Service Notes

• Check the bore is clear before fitting — a nipple is often the feed point or restriction for a circuit, and debris left in it will starve whatever it supplies
• On tapered threads use the paste or liquid sealant specified for the fluid concerned, applied a few threads back from the open end; avoid thread tape on fuel and oil lines, where a shed shred travels downstream into filters, pumps and injectors
• Where the nipple seals on a face or against a washer rather than on its thread, fit a new sealing washer instead of curing a weep by overtightening
• Tighten to the figure in the workshop manual for your engine — these are small fittings in castings and are easily stripped, or the surrounding boss cracked
• Support the pipe or hose so it meets the nipple square and without side load, then check the joint at working pressure and temperature

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1136965 → Supersedes 845858

OEM / Related Numbers

• 845857 earlier number superseded by this part
• 845858 earlier number superseded by this part
• 862154 temperature sensor
• 848829 thermomonitor
• 11032017 related nipple
• Volvo Penta TD164KAE thermostat housing

📦 Condition

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