Classic Diesel Designs 90cc (250hp) DB2 Injection Pump Rebuild

Fitment: 90cc (250hp) DB2 Injection Pump Rebuild. Match your engine, chassis, transmission and turbo configuration to the details below.

Fulfillment: Supplier-sourced from Classic Diesel Designs. Availability and any manufacturer build time apply; this listing does not indicate stock held at PSC.

Core returns: Core return instructions will be sent upon checkout. Any refundable core amount is the amount specified below; the retail markup is not refundable as a core deposit.

Manufacturer information — Classic Diesel Designs

The 90cc DB2 is the best pump for bolt on performance. This pump is the best compromise for those wanting to upgrade from stock, but may not want to upgrade turbos or intercool immediately. Best suited to be used with a boost and pyrometer gauges, this pump works perfectly with an otherwise stock powertrain. This pump makes 90cc fueling flat across the entire rpm curve, reducing egts compared to other 90cc pumps which typically run 10cc more peak fuel than hp fuel, creating a smokier, hotter running pump for the same amount of produced power.

-Current lead time for this spec CDD injection pump is 3-5 weeks.

All Classic Diesel Designs' DB2 injection pumps are built to and exceed oem specification. All pumps are built with a new advance piston, balanced metering valve to reduce side load and stickage issues, low lubricity spec tool steel blade set and transfer pump liner to reduce wear with modern dry diesel, high torque shutoff solenoid, viton material grade seals, updated delivery valve, delivery valve stop, and low lubricity grooved plungers.

See Stanadyne service bulletins: S.B 60R8, S.B.108RlO, S.B.125R5, S.B. 304R8 S.B. 334R1, S.B. 373R1.

A common issue with the design of the DB series rotary pump is rapid wear of the advance piston bore due to the hardened piston sliding in the aluminum bore quickly eroding the critical tolerance due to lack of lubricity of modern diesel fuel. Most cheaper rebuilds ream out this bore and fit a larger piston, but this is just a temporary fix and soon the hydraulic advance will be out of spec, resulting in a lack of power, high egts and a smokey exhaust. Our solution is to mill out this bore and install a ceramic sleeve. This ceramic sleeve allows us to create a better fit than with the original design, and shows no wear after over 100k miles, extending the lifespan of the pump, and maintaining the same out of box performance many years down the road.

-If purchasing an exchange order with no core supplied, the cost of the service increases $100 along with a $200 core charge that will be refunded after the core has been received and inspected.

-If sending a core upfront, please be sure to strip the pump of all extra parts, if you are confused about which parts to remove please review the instructions page linked below. CDD is not responsible for parts left on core pumps.

Installation Instructions: https://docs.google.com/document/d/1HtY4dqxr3rb8z64wpksy0_WgorBhvYN44x3st4025Kw/edit?usp=sharing