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Significant Customer and Other Information

6 Months Ended

Sep. 30, 2025

Significant Customer and Other Information [Abstract]

Significant Customer and Other Information

6. Significant Customer and Other Information

Significant Customer Concentrations

The largest customers accounted for the following percentage of consolidated net sales:

			Three Months Ended September 30,								Six Months Ended September 30,
			2025				2024				2025				2024
Net sales
Customer A			38	%			34	%			38	%			37	%
Customer B			28	%			21	%			26	%			20	%
Customer C			21	%			31	%			21	%			29	%

Revenues for these customers were derived from the Hard Parts segment and Test Solutions and Diagnostic Equipment segment. See Note 18 for a discussion of the Company’s segments.

The largest customers accounted for the following percentage of accounts receivable – trade:

			September 30, 2025				March 31, 2025
Accounts receivable - trade
Customer A			36	%			41	%
Customer B			34	%			26	%
Customer C			7	%			7	%

Geographic and Product Information

The Company’s products are sold predominantly in North America and accounted for the following percentages of consolidated net sales:

			Three Months Ended September 30,								Six Months Ended September 30,
			2025				2024				2025				2024
Product line
Rotating electrical products			69	%			68	%			68	%			67	%
Brake-related products			21	%			21	%			22	%			22	%
Wheel hub products			6	%			7	%			6	%			7	%
Other products			4	%			4	%			4	%			4	%
			100	%			100	%			100	%			100	%

Significant Supplier Concentrations

The Company had no suppliers that accounted for more than 10% of inventory purchases for the three and six months ended September 30, 2025 and 2024.

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- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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