GMC P150-22 Parts & Accessories

GMC P150-22 Parts & Accessories

The GMC P150-22 step van is a forward control platform built for commercial delivery and route service applications, featuring a body-over-frame design that maximizes cargo capacity with a short overall footprint. These vehicles were widely used for parcel delivery, bread and milk routes, and utility work, and their mechanical simplicity means owners can keep them running with straightforward replacement parts for engines, brakes, and drivetrain components. The P150-22 designation reflects the specific wheelbase and body length of this configuration within the P-series lineup. Independent operators, fleet managers, and restoration enthusiasts all depend on accurate, application-specific parts to keep these workhorses in service.

Popular Upgrades

Brake system maintenance is the most critical service category for any step van, and StopTech, Raybestos, and Bendix all manufacture replacement drum brake shoes, wheel cylinders, and master cylinder kits for P-series applications. AC Delco and Motorcraft offer replacement fuel pump, carburetor rebuild, and ignition component kits for the 250 inline-six and 305 or 350 small-block engines common to this platform. Gates timing belts and serpentine belts keep the accessory drive and valve timing systems in spec. Monroe and Gabriel manufacture replacement shock absorbers and struts for the front suspension that restore ride stability over years of daily route use.

Performance and Handling

The P-series step van uses a recirculating ball steering box and a front coil spring or torsion bar suspension depending on the generation, making alignment maintenance and steering component replacement important for safety in commercial use. Moog tie rod ends and idler arms are the preferred steering replacement parts for their precision fit and long service life under daily driving conditions. Rear leaf spring replacements from National Spring or Moog restore payload capacity and ride height lost to fatigued original springs on high-cycle fleet vehicles.

What engine was used in the GMC P150-22?

The GMC P150-22 step van was equipped with engines from the standard GM lineup including the 250 cubic inch inline-six and small-block V8 options, with the specific engine varying by production year. AC Delco and Holley supply replacement fuel system components for these engines, while Gates covers the belt and cooling system maintenance items. Confirming the engine code before ordering ensures compatibility for fuel pump, carburetor, and ignition components.

How do I replace the brakes on a GMC P150-22?

P-series step vans use drum brakes on all four corners in most configurations, with the front drum diameter and rear drum diameter varying by chassis weight class. A complete brake service involves replacing the shoes, hardware springs, wheel cylinders, and turning or replacing the drums, and should be performed in axle pairs for even braking performance. Bendix and Raybestos both publish detailed part number guides specific to the P-series by year and chassis code, ensuring you receive the correct shoe width and wheel cylinder bore for your application.

Why These Parts Fit Right

Parts in this collection are cataloged specifically to the GMC P150-22 step van platform, ensuring brake, suspension, and engine components match the chassis specifications. Fast shipping gets commercial operators back on route quickly, and expert support is available to confirm fitment for any specific year or configuration. Every order is backed by accurate application data so your parts arrive ready to install.

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