Major Customers

The Company had four major customers during 2018, Navistar, Volvo, PACCAR, and UFP. Major customers are defined as customers whose current year sales individually consist of more than ten percent of total sales during any annual or interim reporting period in the current year. The loss of a significant portion of sales to Navistar, Volvo, PACCAR, or UFP would have a material adverse effect on the business of the Company.

The following table presents sales revenue for the above-mentioned customers for the years ended December 31:



	2018		2017		2016
Navistar product sales	$	52,347,000	$	39,609,000	$	39,756,000
Navistar tooling sales	2,806,000		159,000		1,994,000
Total Navistar sales	55,153,000		39,768,000		41,750,000

Volvo product sales	46,063,000		27,627,000		29,520,000
Volvo tooling sales	97,000		8,089,000		20,450,000
Total Volvo sales	46,160,000		35,716,000		49,970,000

PACCAR product sales	38,027,000		26,481,000		24,235,000
PACCAR tooling sales	6,425,000		2,932,000		3,481,000
Total PACCAR sales	44,452,000		29,413,000		27,716,000

UFP product sales	27,906,000		—		—
UFP tooling sales	240,000		—		—
Total UFP sales	28,146,000		—		—

Other product sales	91,874,000		54,906,000		53,113,000
Other tooling sales	3,700,000		1,870,000		2,333,000
Total other sales	95,574,000		56,776,000		55,446,000

Total product sales	256,217,000		148,623,000		146,624,000
Total tooling sales	13,268,000		13,050,000		28,258,000
Total sales	$	269,485,000	$	161,673,000	$	174,882,000