Tides Marine's SureSeal is a drip-free, self-aligning propeller shaft seal designed to enhance vessel performance and reliability. It accommodates propeller shaft sizes from 1 inch to 8 inches (25 mm to 160 mm) and is OEM equipment on many well-known brands and types of vessels
|
1-2 weeks delivery time The Tides Marine seriesOne™ stern tube shaft seal is designed for smaller, single-engine vessels with stainless steel propeller shafts, covering shaft diameters from 7/8″ to 1 1/4″ (in 1/8″ steps) and metric shafts from 25 mm to 30 mm. The lip seal is not replaceable—when worn, the entire housing must be replaced. Each kit includes an application-specific articulating hose (single or multi-convolution option) and four 316 stainless steel hose clamps, and requires a pressurized water supply with 1 gallon per minute at idle.
|
$ 474.99
Shaft Diameter:
Stern Tube Diameter:
| ||
|
1-2 weeks delivery time The Tides Marine SureSeal Single Injection Propeller Shaft Seal is a drip-free, self-aligning sealing system for stainless steel propeller shafts, supplied as a kit with an articulating hose and four hose clamps. The SureSeal housing is made from fiber-reinforced composite, includes an integral PTFE bearing, and uses a replaceable lip seal accessed through a removable front cap. Cooling/lubricating water is supplied via a single 316 stainless steel injection fitting (3/8" or 1/2" depending on shaft size). For servicing convenience, SureSeal can be paired with a Spare Seal Carrier Kit to enable lip seal replacement without uncoupling the shaft and, when applicable, in the water.
|
$ 801.55
Shaft Diameter:
Stern Tube Diameter:
| ||
|
1-2 weeks delivery time The Tides Marine SureSeal Single Injection Propeller Shaft Seal (FSK series) is a drip-free, self-aligning shaft seal kit for stainless steel propeller shafts (imperial sizes 1"–3"), supplied as a complete kit with an articulating hose and four hose clamps. The composite housing contains an integral PTFE bearing and a replaceable lip seal accessible via a removable front cap; cooling/lubricating water is supplied through a 3/8" or 1/2" 316 stainless steel injection fitting. SureSeal is easy to install, requires minimal scheduled maintenance, and can be used with Spare Seal Carrier Kits to allow lip-seal replacement without uncoupling the shaft (when carrier is fitted).
|
$ 670.58
Shaft Diameter:
| ||
|
1-2 weeks delivery time The Tides Marine SureSeal Twin Injection Propeller Shaft Seal is a drip-free, self-aligning shaft seal kit designed for twin-engine vessels, featuring dual water injection fittings to support a passive crossover line between port and starboard seals. This crossover helps maintain cooling and lubricating water flow to the seal on an idle engine (e.g., trolling or single-engine operation). The SureSeal housing is fiber-reinforced composite with an integral PTFE bearing and a replaceable lip seal accessible via a removable front cap; kits are supplied with an articulating hose and four hose clamps, and can be paired with Spare Seal Carrier Kits to allow lip-seal replacement without uncoupling the shaft.
|
$ 801.55
Shaft Diameter:
Stern Tube Diameter:
| ||
|
1-2 weeks delivery time The Tides Marine SureSeal Lip Seals are replacement shaft lip seals offered in imperial (3/4″ to 5″) and metric (25 mm to 125 mm) sizes. Each variant is defined by its shaft diameter, part number, and exact seal dimensions including Lip Seal ID, OD, and thickness (in inches or millimeters depending on series). This range is intended for matching the correct seal to a specific propeller shaft diameter and housing size in marine driveline applications.
|
$ 123.99
Shaft Diameter:
| ||
|
1-2 weeks delivery time The Tides Marine Spare Seal Carrier Kits are designed to store spare lip seals directly on the propeller shaft between the SureSeal® housing and the shaft coupling, allowing quick replacement of worn seals without uncoupling the shaft and, if required, without hauling the vessel out of the water. The carrier is a lightweight two-piece composite housing that clamps around the shaft and holds spare lip seals. Available in imperial sizes from 7/8″ to 6″ and metric sizes from 25 mm to 130 mm, the kits store one or two spare seals depending on shaft diameter.
|
$ 310.85
Shaft Diameter:
| ||
|
1-2 weeks delivery time The Tides Marine Hose Tee Fittings (TH series) are compact yellow brass tee connectors designed to reduce the size and complexity of branch hose connections in marine plumbing. They are an integral component of the Tides Marine water pick-up kit and are selected by matching the main hose inside diameter, branch hose diameter, and the overall part length specified for each tee.
|
$ 64.61
Size, mm:
| ||
|
1-2 weeks delivery time The Tides Marine Water Pick-Up Kits are designed to connect Tides Marine SureSeal shaft seals to the engine’s raw water cooling system, supplying water required for lubrication of the lip seal and PTFE bearing inside the SureSeal housing. The kits are available for hose sizes ranging from 3/8" to 2" with a 3/8" branch connection, and are manufactured from silicone. Each kit includes the components required to route cooling water from the engine cooling circuit to the SureSeal injection fitting.
|
$ 92.55
Size, mm:
| ||
|
1-2 weeks delivery time The Tides Marine SP-SS1-GEN2 Smart Seal Temperature Alarm System is designed for monitoring a single Tides Marine SureSeal shaft seal, providing temperature alarm functionality for early detection of abnormal operating conditions. The system includes an alarm control module and connector cable with ends, and operates on 12V or 24V DC power, allowing integration with standard marine electrical systems.
|
$ 859.18
-
+
| ||
|
1-2 weeks delivery time The Tides Marine SP-SS2-GEN2 Smart Seal Temperature Alarm System is designed for monitoring two Tides Marine SureSeal shaft seals using solid-state temperature sensors and an electronic control module. The system provides audible and visual alarms to alert the crew of temperature increases at the SureSeal head, allowing immediate inspection to prevent damage. The kit includes an alarm control module and two connector cables with ends, operates on 12V or 24V DC power, and features a self-diagnostic function during power-up.
|
$ 1,101.91
-
+
| ||
|
1-2 weeks delivery time The Tides Marine SP-SS-SIREN SmartSeal Remote Siren is an acoustic alarm device designed for Tides Marine SureSeal alarm systems, providing audible alerts for monitoring shaft seal conditions. The unit operates on 12V or 24V DC (VDC) and includes a SmartSeal temperature sensor for system monitoring. Supplied as one unit, the siren is intended for installation as part of the SmartSeal alarm system. EAN: 8720193082196.
|
$ 2,240.50
-
+
| ||
|
1-2 weeks delivery time The Tides Marine INJHOSE0375 Water Injection Hose is a 3/8" inner diameter silicone hose designed for dripless shaft log applications, providing water injection to shaft seal systems. Manufactured from high-grade silicone and finished in blue, the hose is supplied by the foot, allowing flexible length selection for installation in marine propulsion systems.
|
$ 13.10
-
+
| ||
How does the SureSeal self-aligning feature improve propeller shaft performance?
The SureSeal self-aligning feature enhances propeller shaft performance by automatically compensating for minor misalignments between the shaft and stern tube, reducing wear and extending the life of the marine shaft seal. The articulating hose design allows for flexible movement, ensuring a consistent, dripless seal that minimizes water ingress and maintenance needs. Tides Marine SureSeal is manufactured using fiber-reinforced composite materials, meeting ISO and American Bureau of Shipping standards, making it a durable and reliable choice for inboard vessels and sailboats.
What are the key features of the Tides Marine SureSeal shaft seal?
The Tides Marine SureSeal shaft seal is a drip-free, self-aligning propeller shaft seal designed to enhance marine vessel performance. Its housing is made from a fiber-reinforced composite material, ensuring strength and durability while remaining unaffected by temperature changes and water absorption. The integral PTFE bearing extends the operating life of the seal under normal conditions. Additionally, the articulating hose design simplifies installation by automatically positioning the SureSeal at the correct operating distance from the stern tube, reducing side loads during shaft misalignment and extending the life of the lip seal and bearing. The removable front cap allows for easy replacement of a worn lip seal, even while the vessel is in the water, maintaining a watertight seal.
How does the design of the seal kit contribute to reducing maintenance needs?
The Tides Marine SureSeal shaft seal features a self-aligning design that accommodates shaft misalignment, reducing wear and extending the seal's lifespan. Its articulating hose automatically positions the seal at the correct operating distance from the stern tube, simplifying installation and minimizing side loads. Additionally, the integral PTFE bearing enhances durability under normal operating conditions.