Reductant Heater and Sender Unit: 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: Install the reductant heater and sender unit in the same position in the reductant tank as noted during disassembly.

NOTE: Make sure the reductant heater and sender unit is fully seated in the retainers in the bottom of the reductant tank.

Install the reductant heater and sender unit in the tank. Reach inside the reductant tank opening and turn the reductant heater and sender unit clockwise to attach the 4 reductant heater and sender unit retainers to the base in the bottom of the reductant tank.

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NOTE: The reductant pump unit seal should not be lubricated.

NOTE: Make sure the reductant heater and sender unit seal is fully seated in the reductant tank opening.

Install a new reductant heater and sender unit seal into the reductant tank.

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NOTE: Line up the raised arrow on the reductant heater and sender unit with the raised indicator lines on the reductant tank.

Seat the top of the reductant heater and sender unit in the reductant heater and sender unit seal.

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Install the reductant heater and sender unit lock ring. Using the Fuel Tank Sender Unit Wrench, tighten the reductant heater and sender unit lock ring. Use Special Service Tool: 310-069 Wrench, Fuel Tank Sender Unit.
Torque: 66 lb.ft (90 Nm)

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Install the wire harness and connect the electrical connector. Attach the wire retaining clip to the wire harness. Attach the wire routing clips to the reductant heater and sender unit lock ring.

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Install the reductant pump. Refer to: Reductant Pump .