Reductant Pump: Installation

WARNING: This page is about a different variant/trim than selected.

NOTE: During the removal or installation of components, cap, tape or otherwise appropriately protect all openings and tubes/fittings to prevent the ingress of dirt or other contamination. Remove caps, tape and other protective materials prior to installation.

NOTE: DO NOT use compressed air as this could force dirt and foreign material into the ports of the reductant heater and sender unit.

Use a clean shop towel to dry the water and reductant from the mounting interface on the top of the reductant heater and sender unit.

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NOTE: Make sure the reductant heater and sender unit O-ring area is clean of any dirt or foreign material before installing the reductant pump O-rings. Failure to do so may cause a reductant pump leak.

NOTE: The reductant pump O-ring should not be lubricated with anything other than clean reductant. Using grease or other petroleum-based lubricants may damage the reductant pump.

NOTE: Only install the new large reductant pump O-ring at this time.

Lubricate the reductant pump new large O-ring with only clean reductant and install it into the large port on the reductant heater and sender unit.

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NOTE: Do not insert the reductant heater and sender unit small O-ring into reductant pump supply port in the reductant heater and sender unit. Installing this O-ring into the reductant pump supply port in the reductant heater and sender unit can cause it to roll or pinch when installing the reductant pump.

NOTE: If a new reductant pump is being installed, prime the new reductant pump using the syringe included in the new reductant pump kit. The reductant pump kit includes a detailed instruction sheet to assist with the syringe and the reductant pump priming procedure.

NOTE: The reductant heater and sender unit O-ring should not be lubricated with anything other than clean reductant. Using grease or other petroleum-based lubricants may damage the reductant pump.

NOTE: If a new reductant pump is being installed, then remove both protective caps from the 2 bottom ports of the new reductant pump and install them on the old reductant pump.

Lubricate the reductant heater and sender unit new small O-ring with only clean reductant and install the new small O-ring on the small nipple on the bottom of the reductant pump.

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Correctly orientate the reductant pump to the reductant heater and sender unit as noted during the reductant pump removal and gently press the new reductant pump into place.

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NOTE: Make sure to tighten the reductant pump bolts evenly. Failure to do so may cause a reductant pump leak.

Install the new reductant pump Allen cap screws. Evenly tighten the reductant pump Allen cap screws.

Torque: 44 lb.in (5 Nm)

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Connect the electrical connectors.

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Install the reductant pump cover.

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Install the reductant tank. Refer to: Reductant Tank .