$37.00
The Caged Wrist Pin Bearing is a direct replacement for the loose needle style wrist pin bearing set used in select OMC, Johnson and Evinrude outboard engines.
The caged design keeps the bearing needles securely positioned during assembly, making piston and connecting rod installation faster and easier while reducing the frustration of working with individual loose needles.
Ideal for powerhead rebuilds, piston replacement, performance engines, and SST-45 race motors. This caged bearing is a legal replacement part for SST-45 competition.
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The Caged Wrist Pin Bearing is a direct replacement for the traditional loose needle-style OMC, Johnson and Evinrude Wrist Pin Bearing used between the piston wrist pin and the small end of the connecting rod.
Instead of installing and positioning individual loose needle bearings, this upgraded caged design keeps the needles contained and properly positioned as a single assembly. This makes piston installation significantly easier, faster, and less frustrating during a powerhead rebuild.
For racers and engine builders, the caged design is especially convenient when rebuilding OMC/Johnson/Evinrude performance engines because it reduces the chance of a needle moving or falling out of position during assembly.
Most importantly for Formula Light Class, this caged wrist pin bearing is a legal replacement for the original needle bearing set in SST-45 competition.
The traditional wrist pin bearing design uses individual needle rollers positioned around the wrist pin inside the connecting rod.
While the loose needle design works well once assembled, installation can be tedious. Each needle must remain correctly positioned while the wrist pin is installed through the piston and connecting rod.
The caged bearing simplifies this process by holding the rollers together as one complete bearing assembly.
That means:
For anyone who has rebuilt one of these powerheads using loose wrist pin needles, the advantage of the caged design becomes obvious very quickly.
The wrist pin bearing sits between the piston wrist pin and the small end of the connecting rod.
As the piston travels up and down the cylinder, the connecting rod constantly changes angle while transferring combustion force from the piston to the crankshaft.
The wrist pin bearing allows the piston and connecting rod to pivot smoothly while handling:
Because of the amount of movement and load placed on this small bearing, proper bearing condition is critical to engine reliability.
Possible symptoms or inspection findings may include:
Severe wrist pin bearing failure can damage the piston, wrist pin, connecting rod, cylinder, and other internal engine components.
This caged bearing is designed as a replacement for applications using the traditional:
395627 / 0395627 Wrist Pin Bearing & Needle Set
Instead of reusing or reinstalling individual loose needles, the caged assembly provides a simpler way to complete the same wrist pin bearing function.
Always verify your specific engine and application before ordering.
Anyone who regularly rebuilds Johnson/Evinrude powerheads knows that installing loose wrist pin needles can be one of the more tedious parts of piston assembly.
The needles need to stay properly positioned inside the connecting rod while the wrist pin passes through the piston and rod.
With the caged version, the bearing remains together as a complete unit. This makes it much easier to:
For frequent engine rebuilds, the time and frustration saved can make the caged bearing a worthwhile upgrade over the original loose needle arrangement.
This bearing is especially useful for SST-45 / Formula Light race engine rebuilds.
SST-45 engines routinely operate at sustained high RPM, placing significant load on the piston, connecting rod, wrist pin, and bearing assemblies.
The caged wrist pin bearing provides the same critical bearing function while simplifying engine assembly and is a legal replacement component for SST-45 competition.
At Liquid Revolutions, we work with these engines in real racing conditions and understand how much easier a rebuild becomes when small improvements simplify assembly without compromising legality or reliability.
Whether you’re refreshing a race powerhead between events or completing a full engine rebuild, the caged wrist pin bearing can make piston assembly considerably easier.
Whenever replacing the wrist pin bearing, also inspect:
A new bearing should not be installed against a damaged or heavily worn wrist pin or connecting rod surface.
The Caged Wrist Pin Bearing provides a simple improvement over the traditional loose needle arrangement by making installation faster and easier while maintaining the bearing support required between the piston, wrist pin, and connecting rod.
For SST-45 racers, it provides the additional benefit of being a legal replacement for the original loose needle bearing set, making it an excellent option for race-engine rebuilds.
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 2 × 2 × 1 in |
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