DDP 4BTP-1 CUMMINS P-PUMP 4BT STAGE 1 INJECTOR SET

The DDP 4BTP-1 injector set is a stock-flow, complete replacement for Cummins 4BT engines equipped with a Bosch P7100 mechanical injection pump. Built with OEM 1-hole nozzles, these injectors restore factory performance, fuel economy, and drivability—ideal for fleet rebuilds, industrial machines, and step van restorations.

Whether you’re maintaining reliable work equipment or refreshing a stock 4BT swap, DDP delivers OEM-level quality and consistency.

Vehicle / Engine Fitment

• Cummins 3.9L 4BT with Bosch P7100 mechanical injection pump

• Common applications:

  • Delivery vans, service trucks

  • Skid steers, generators, ag equipment

  • Jeep swaps and off-road utility builds

 Not compatible with VE-pump or electronically controlled 4BT versions.

Key Features

•  Includes 4 complete injectors – direct drop-in

•  1-hole OEM-style nozzles

•  Flow matched and pop-tested

•  Perfect for stock rebuilds

•  Compatible with factory injection and turbo setups

•  Precision-built in the USA

Ideal For

• Industrial and off-highway equipment

• Fleet maintenance and service trucks

• Factory-spec 4BT rebuilds or mild swaps

• Emissions-compliant configurations (off-road only)