Seattle Car Manufacturing (PACCAR predecessor) founded by William Pigott Sr. building railroad cars; would acquire Kenworth (1945) and Peterbilt (1958) to become one of the world's largest Class 8 truck makers

Pacific Car & Foundry (PACCAR) acquires Kenworth Motor Truck Company; gains its first Class 8 truck brand and pivots from rail/forging into heavy-duty trucks

PACCAR acquires Peterbilt Motors after founder T.A. Peterman's death; the Kenworth + Peterbilt duopoly defines premium American Class 8 trucking through the next 60 years

Kenworth T680E Class 8 BEV revealed: 396 kWh battery, ~150 mi range targeted at regional haul / drayage; Peterbilt 220EV (Class 6/7) and 579EV (Class 8) announced as parallel platforms — PACCAR's first true HD electrics

Peterbilt Model 579EV battery-electric Class 8 begins commercial customer deliveries; rollout staged through Peterbilt dealer network with HVIP voucher support in California ports

Aurora + PACCAR partnership formally locks in Peterbilt 579 and Kenworth T680 as platforms for Aurora Driver — PACCAR commits chassis for autonomous production by mid-decade in exchange for preferential rollout access

Kenworth T680E enters series production at Renton WA plant — PACCAR's first US-built series-production Class 8 BEV; targets HVIP-eligible drayage, beverage and regional fleets

Kenworth T680 Fuel Cell Electric Truck (with Toyota Mirai-derived powertrain) begins ZECT trial at Port of LA; 320 mi range target — PACCAR's parallel hydrogen path alongside Peterbilt/Kenworth BEV programs

PACCAR + Accelera (Cummins) + Daimler Truck JV announced to localize LFP battery cell production in US: $2-3B capex Mississippi plant, 21 GWh nameplate from 2027 — first OEM-level commercial-vehicle battery JV under IRA 45X tax credits

EPA finalizes GHG Phase 3 standards for heavy-duty vehicles MY2027-2032; expected ZEV share rises to ~25% Class 8 by 2032 — locks in long-term ramp glide path that PACCAR executes through Kenworth T680E v2 and Peterbilt 579EV

Peterbilt 579EV refresh announced at IAA Hannover with 250-mi long-range pack option (565 kWh), plus tighter Aurora autonomous package integration — closes feature gap with Volvo VNR Electric and eCascadia

Aurora-equipped Peterbilt 579 begins commercial driverless freight runs Dallas-Houston for FedEx, Werner and Schneider — PACCAR's chassis ships into the first revenue-generating L4 trucking lane

Peterbilt 579EV cumulative US deliveries pass 600 units; Kenworth T680E passes 400 — combined PACCAR Class 8 BEV book closes on Volvo VNR Electric and runs ahead of Tesla Semi by units delivered through Q3 2025