PAI Rear Crank Seal 636020
Easy 30-Day Returns
You have 30 days from delivery to request a return, with no restocking fees. Return shipping is the customer's responsibility. All sale items are final sale.
PAI rear crankshaft seal kit (part 636020) for Detroit Diesel Series 50 and Series 60 engines. Includes a Teflon rear crankshaft oil seal and wear ring for counter-clockwise rotation. Replaces Detroit Diesel 23501544, 23513577, and 23516969.
- Rear crankshaft seal kit for Detroit Diesel Series 50/60
- Includes Teflon oil seal and wear ring
- Seal: 5.295" ID x 6.503" OD x 0.50" wide
- Replaces DD 23501544 / 23513577 / 23516969
Shipping information
All in-stock orders ship via UPS Ground. Orders placed before 3:00 PM CST, Monday through Friday, ship the same business day — because downtime costs you money and every hour counts when a truck is down.
Orders placed after 3:00 PM CST, on weekends, or on holidays ship the next business day. As soon as your order leaves our dock you'll receive tracking so you can follow it every mile of the way. Larger or heavier items may ship by freight — if that applies to your order, our team will reach out with the best options.
Have a rush order or a question about delivery? Give us a call and we'll do everything we can to get your parts to you fast.
Returns & warranty
30-Day Returns. Ordered the wrong part or changed your mind? You have 30 days from the delivery date to request a return. Items must be new, unused, and in their original packaging. Some items — such as electrical components and special-order parts — may not be eligible for return, so reach out if you're unsure and we'll be glad to help.
Warranty. We stand behind everything we sell. All parts are covered by the manufacturer's warranty against defects in materials and workmanship. If a part arrives damaged or fails due to a manufacturing defect, contact us and we'll make it right — quickly and hassle-free.
To start a return or a warranty claim, just contact our team with your order number and we'll walk you through the process. We've built our reputation on keeping trucks moving and treating every customer the way we'd want to be treated.