V-ribbed (serpentine) belt – 8.1 L with Delco alternator
Part #: 725033
The Serpentine Belt is an original OEM INDMAR part for 8.1L engines equipped with Delco alternators, used in Tigé and ATX boats. The belt is used to transfer power between the crankshaft and engine accessories, especially the alternator and other driven components.
The belt is manufactured to exact INDMAR factory specifications, ensuring the correct length, groove profile and optimum tension in the Delco alternator system. The correct belt specification is essential for reliable operation of the engine's electrical and cooling systems.
Technical specifications:
Type: V-ribbed (serpentine) belt
Engine: INDMAR 8.1 L
Alternator: Delco
Part #: 725033
OEM manufacturer: INDMAR
Application: drive motor accessories
Application: Tigé / ATX boats
Service note:
When replacing the belt, it is recommended to:
Checking the tensioner pulley and guide pulleys
visual inspection of pulley alignment
replace the belt if there are signs of cracks, pulling or slipping
Compatibility verification:
For correct part identification, we recommend providing the boat's HIN or the exact INDMAR 8.1 L engine configuration.

