MOSNAI 1" Hole 30-Tooth Spline Brake Drum Hub Set for EZGO TXT RXV — Two Drums with Lug Nuts

MOSNAI's 1" hole, 30-tooth spline brake drum hub is a direct-fit replacement designed for many EZGO gas and electric carts from 1992 onward, supplied as a complete two-drum set with lug nuts and washers.

Replace worn or damaged rear brake drums with this MOSNAI hub set engineered to match OEM spline and hole specifications. Built to fit EZGO TXT, RXV, Medalist, Marathon and other compatible models, the drums arrive ready for installation with the hardware needed for one cart. Before ordering, confirm your cart's center-hole diameter and spline count—this product fits 1" center holes with a 30-tooth spline, not the 3/4" (0.75") types used on many 2-cycle models.

Which EZGO models and years will this MOSNAI brake drum fit?

This brake drum set fits a broad list of EZGO gas and electric models across different production years when the cart uses a 1" center hole and 30-tooth spline. Compatibility covers TXT, RXV, Medalist, Marathon, MPT, ST series, Shuttle, Workhorse and several Columbia frames—check the included model-year breakdown for specifics.

• Gas examples: TXT 1996–2009, RXV 2009–current, Marathon 1992–1994.
• Electric examples: Shuttle 2005–2011, Express L6/L4 and S6/S4 2012–current.
• OEM cross-references: fits part numbers like 21807-G1 and Columbia 41843-94.

How do I confirm my cart needs a 1" center hole, 30-tooth spline drum?

Measure the center axle hole and count the spline teeth on your existing hub or consult your service manual. If the center hole measures roughly 1 inch and you count 30 spline teeth, this MOSNAI drum is the correct style; otherwise it will not seat properly.

• Use calipers or a ruler to verify a 1.00" central bore measurement.
• Visually inspect and count spline teeth; 30 teeth are required for compatibility.
• Compare your OEM part number (e.g., 21807-G1) with the MOSNAI cross-reference list.

What comes in the box and what should I check before installation?

The package contains two spline brake drums plus lug nuts and washers—enough hardware to replace the rear drums on one cart. Before installing, inspect the rear axle splines, bearings and mounting surfaces for wear or looseness to avoid premature failure of the new drums.

• Included: two brake drums, four lug nuts, and washers (hardware count may vary by kit).
• Pre-install checks: axle spline integrity, bearing play, and brake shoe condition.
• If axle splines show excessive wear, replace or repair them before mounting new drums.

Will these drums work on 2-cycle engine carts or smaller hubs?

No—MOSNAI drums in this listing are not universal. They are specifically made for 1" hole, 30-tooth spline applications and will not fit carts that require a 0.75" center hole or different spline counts, which are common on many 2-cycle models.

• Not compatible with 0.75" (3/4") center-hole hubs.
• Do not fit carts with different spline counts than 30 teeth.
• Verify engine type and hub dimensions to prevent returns.

Who is this for: MOSNAI’s 1" hole, 30-tooth spline brake drum set is made for owners, mechanics and fleet managers who maintain EZGO and select Columbia carts requiring an exact OEM-style replacement. Choose this kit if you need a direct-fit drum set with hardware for one cart and you have confirmed a 1" bore with 30 spline teeth. If your cart uses a smaller bore or different splines, refer to a compatible part or contact support for help identifying the correct hub.