Bostech's line of new heavy-duty water pumps are backed by our 24-month unlimited mileage warranty. We offer 50 plus skus covering most diesel engine applications. Our pumps are quality engineered according to the OEM's design and assembled with high-performance bearings, durable long-lasting seals, and for most applications upgraded impellers. Top-quality product direct from a Trusted Manufacturer - Bostech!
Engine Fitment:
- Cummins 3.9L B Series
- Cummins 5.9L ISB
Technical Information:
- Housing Material: Cast Iron
- Impeller Material: Steel
- Impeller Vanes" Open 5 Vanes
- Pulley Style: Smooth with Slant top
- Pulley Diameter: 3.464 in / 88mm
- Mounting: 2 Bolt
Note: There are 3 Cummins 5.9L Water Pumps which look identical with the exception of the impeller, please verify:
- WP03300 - Steel Impeller with 5 shielded vanes
- WP03302 - Cast Iron Impeller with 7 vanes
- WP04278 - Steel Impeller with 5 open vanes
- Housing Material:
- Cast Iron
- Impeller Material:
- Steel
- Impeller Style:
- Open 5-Vanes
- Pulley Diameter:
- 3.464 inches / 88mm
- Gaskets Included:
- Yes
- Prop65 Warning:
- WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARRANTY:
Bostech / BT-Power's 24-Month Unlimited Mileage Warranty.
Our warranty covers product replacement for material and/or workmanship defects up to 24-months from the product purchase date, see our Warranty Policy under the Help Center link at the top of the page for full warranty details.
If you are experiencing issues with our products please contact our Customer Service Team.
Technical Support is available by contacting Bostech's Customer Service at 1-800-868-0057 or by emailing customerservice@bostechauto.com.
