Motorcycle Maintenance and Oil Information for 1991 Triumph Trident 900
When preparing an oil change for the 1991 Triumph Trident 900, review the engine’s oil requirements and its recommended level-check method. The answers below identify what this catalog actually lists for the motorcycle.
What kind of oil does a 1991 Triumph Trident 900 take?
In the product lookup for this model, 10W-40 is the engine-oil grade shown. The matching oil selection includes 10W-40 Synthetic Metric Motorcycle Oil. Confirm the manufacturer’s complete oil specification before using a listed product.
Which oil filter is listed for a 1991 Triumph Trident 900?
The oil-filter part numbers listed for this vehicle include 24941-EA.

