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美国

证券交易委员会

华盛顿特区 20549

表格 8-K

当前报告

根据第 13 或 15(d) 条

《1934 年证券交易法》

报告日期（最早报告事件日期）2026 年 10 月 27 日

PACCAR Inc

（注册人章程中规定的确切名称）

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

特拉华州

001-14817

91-0351110

（州或其他司法管辖区

注册地）

（委员会

档案编号）

（美国国税局雇主

识别号）

777 106th Avenue NE，Bellevue，WA 98004

（主要行政办公室地址）（邮政编码）

注册人电话号码（含区号）（425）468-7400

如果 Form 8-K 文件旨在同时履行注册人在以下任何条款下的申报义务，请勾选下方相应方框：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n
☐	根据《证券法》规则 425 进行的书面通信（17 CFR 230.425）
☐	根据《交易法》规则 14a-12 提交的征求材料（17 CFR 240.14a-12）
☐	根据《交易法》规则 14d-2(b) 进行的开始前通信（17 CFR 240.14d-2(b)）
☐	根据《交易法》规则 13e-4(c) 进行的开始前通信（17 CFR 240.13e-4(c)）

根据该法第 12(b) 条登记的证券：

\n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n
各类证券名称	交易代码	登记所在交易所名称
普通股，面值 $1	PCAR	纳斯达克股票市场

请勾选以说明注册人是否为《1933 年证券法》规则 405（本章 §230.405）或《1934 年证券交易法》规则 12b-2（本章 §240.12b-2）所定义的新兴成长型公司。

新兴成长型公司 ☐

如果是新兴成长型公司，请勾选以说明注册人是否选择不使用《交易法》第 13(a) 条规定的延长过渡期，以遵守任何新的或修订后的财务会计准则。 ☐

第 2.02 项经营业绩和财务状况

2026 年 10 月 27 日，PACCAR Inc（“注册人”）发布新闻稿，公布其 2026 年第三季度财务业绩，并宣布将于同日举行与证券分析师的电话会议，讨论 2026 年第三季度收益；详情见本报告所附新闻稿（附件 99.1）。

本 8-K 表格当前报告中的信息（包括随附的附件 99.1），不得视为根据经修订的《1934 年证券交易法》第 18 条“已提交”，也不受该条规定的责任约束；除非在相关提交文件或其他文件中通过具体引用明确规定，否则不得视为以引用方式纳入根据经修订的《1933 年证券法》提交的任何文件或其他文档。

第 9.01 项财务报表及附件

(d)

附件。

以下文件作为本报告的附件提供。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n
附件编号	说明

99.1	于 2026 年 10 月 27 日发布的新闻稿。
104	封面交互式数据文件（嵌入在 Inline XBRL 文档中）

签名

根据《1934 年证券交易法》的要求，注册人已正式授权下列签署人代表其签署本报告。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n	\n
			PACCAR Inc

日期： 2026 年 10 月 27 日		签署人：	/s/ B. J. Poplawski
			B. J. Poplawski
			高级副总裁兼首席财务官

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