AT18031 RE521349 R100142, T20031, T23516 Crankshaft Fits John Deere Tractor Case 4250 4255 4240 4320 4430

4250 4255 4240 4320 4430 4440 4450 4455 4520 4620 4630 4640 4650 4840 4850 7020 8430 8450 8570 Tractors

All listed models with 2 piece cap and clockwise rotation

1/8" NPT to 1/8" Compression: JJS827

1E6780 (seat)

but you will have to check your cover casting number to confirm if it will work with this seal if you have an early engine serial number

AT18031 RE521349 R100142, T20031, T23516 Crankshaft Fits John Deere Tractor Case 4250 4255 4240 4320 4430Quality Aftermarket AT18031 RE521349 R100142, T20031, T23516 Crankshaft Fits John Deere Tractor Fits: Fits the following w 3 152, 3 164, 3 179 diesel engine w 1. 37" (short) nose using 1 bolt to retain crankshaft pulley: 820 3 cyl., 830 3 cyl., 1020, 2040, 2150, 2155, 2240, 2255; Industrials Specifications See website for all applications. Bearings & gear not included. Replacement Numbers AT18031, RE521349; Serviceable for RE46896, RE47637 w out