Mercury Marine trilobular pin 17-821539 is an original OEM pin with a trilobular profile for retention and positioning in selected Mercury Marine engine assemblies. The pin is used, among other things, in power trim and tilt systems, swivel brackets, steering arms, and shock absorber assemblies.
The spare part is documented for selected 2-stroke and 4-stroke engines from Mercury, as well as a range of Mariner and Force applications. It is also included in selected Mercury Sport Jet assemblies, including 175XR2, 200 DFI, 210 Carb, 240 EFI, and 250 DFI.
Compatibility depends on the engine's serial number and the specific assembly. The model list is therefore intended as examples of documented applications and should not be considered a universal fit. Always verify the part number, serial number, and parts diagram before ordering.
Mercury Marine 17-821539 replaces the previous OEM numbers 17-13794, 17-19603, and 17-99607. The product's GTIN/UPC is 745061334205, and the documented weight is 10 g.
Key featuresOriginal Mercury Marine OEM spare part
Part number: 17-821539
Type: Trilobular pin
Used for retention and positioning
For selected trim, tilt, swivel bracket, and steering arm assemblies
Documented for selected Mercury, Mariner, Force, and Sport Jet applications
Replaces 17-13794, 17-19603, and 17-99607
Weight: 10 g
Check engine serial number and parts diagram before purchase
