2018 - GEN4 Oil Pump Replacement (Damaged Sump)

Hello all,

I must be the unluckiest person alive — I picked up a 2018 Prius with only 12,500 miles (UK).

I pulled the car up on ramps to service it and noticed the oil access hatch on the undertray had clearly taken an impact. After removing the undertray, I found the oil pan had sustained significant damage.

I ordered a new pan and removed the old one. Upon closer inspection, the impact had also hit the oil strainer and caused a fracture in the oil pump.

I’m not willing to risk running the vehicle with the oil pump damaged like that, so I’ve ordered a replacement oil pump from Toyota and plan to swap it over.

Does anyone have any information or tips that might help with the replacement? I’m fairly sure the timing cover will need to come off to loosen the sprocket, but I’m wondering if it can be done without removing the cover.

For context, no oil pressure warning light has come on. I’ve inspected the oil and it’s clean with no metallic shimmer. I also cut open the oil filter and found no metal particles or debris.

Realistically, it would probably continue working for hundreds of thousands of miles since it’s still generating oil pressure, but I genuinely don’t think it’s worth the risk of leaving the damaged pump in place.

Pictures attached.