Ford Early Tractor 4-Speed Transmission Parts

Image	Fits Model	Description	Details	Part #	Price	Product Details
1	See Details	9N, 2N, 8N, NAA, 500, 600, 700, 800, 900	Transmission Input Shaft	2N7017A	$244.00	View Info
1	See Details	601, 701, 801, 901, 2000 & 4000 (4 Cylinder)	Input Drive Shaft (15 Splines)	0	311203	$175.00	View Info
2	See Details	601, 701, 801, 901, 2000 & 4000 (4 Cylinder)	Input Shaft Tube	0	311202	$232.00	View Info
3	See Details	8N, NAA, 600, 601, 640, 641, 700, 800, 801, 840, 841, 900, 901, 941, 2000, 3000, 4000	Second Gear, Main Shaft (4 Speed)	B9NN7A381B	$160.00	View Info
4	See Details	8N, 600, 700, 800, 3000, 2000 & 4000 (4 Cylinder)	Main Shaft 3rd Gear (4-Speed Trans)	0	8N7102	$265.00	View Info
5	See Details	8N, 600, 700, 800, 2000, 3000, 4000	Main Shaft Connecting Coupler	0	E6NN7106AA	$85.00	View Info
8	See Details	8N, 600, 700, 800, 3000, 2000 & 4000 (4 Cylinder)	Countershaft 2nd Gear (4 Speed Trans)	0	B9NN7114A	$158.00	View Info
9	See Details	8N	Counter Shaft	8N7111	$145.00	View Info
9	See Details	NAA, Jubilee	Counter Shaft	0	NAA7111C	$195.00	View Info
9	See Details	600, 601, 800, 801, 900, 901, 2000, 3000, 3400, 3500	Countershaft (4-Speed)	0	NDA7111C	$252.00	View Info
	See Details	8N, 9N, 2N	PTO Shaft Kit	9N700-38	$125.00	View Info
	See Details	NAA, Jubilee	PTO Shaft Assembly (1-3/8" Standard PTO Shaft)	NAA700-38	$113.00	View Info
	See Details	600, 601, 800, 801, 2000 & 4000 (4Cyl)	PTO Shaft Assembly	NCA700-38	$124.00	View Info
	See Details	600 Series, 800 Series, 2000 & 4000 4-Cylinder	PTO Coupler	0	NCA717A	$120.00	View Info
	See Details	NAA, Jubilee, 600, 800, 2000 (4-Cylinder), 4000 (4-Cylinder)	PTO Stop	0	NAA722A	$20.00	View Info

Transmission shafts, gears, countershafts, and PTO components for Ford early series tractors equipped with the 4-speed gearbox, covering the 9N through the four-cylinder 2000 and 4000 models. Parts span input drive shafts, main shaft gears, countershaft gears, PTO shaft assemblies, PTO couplers, and PTO stops for a wide range of vintage and early utility Ford tractors.

Fits Models At A Glance

Early N Series: 9N, 2N, 8N
NAA / Jubilee Series: NAA, Jubilee
500-900 Series: 500, 600, 601, 640, 641, 700, 701, 800, 801, 840, 841, 900, 901, 941
Four-Cylinder 2000 / 4000 Series: 2000 (4-Cyl), 3000, 3400, 3500, 4000 (4-Cyl)

Key Notes

Transmission Shafts: Input drive shafts and input shaft tubes vary by series - confirm your model before ordering
Gear Sets: Main shaft and countershaft gears are specific to 4-speed applications; not compatible with Select-O-Speed transmissions
PTO Assemblies: 1-3/8 inch, 6-spline PTO shaft assemblies available for N Series and later four-cylinder models
PTO Stops and Couplers: Cover NAA, Jubilee, and four-cylinder 600 through 4000 series fitments
Series Overlap: Several parts fit across multiple generations - cross-reference by SKU and model for best results

Why Choose Broken Tractor

✅ Wide fitment coverage from 9N through four-cylinder 4000
✅ Parts cross-referenced by model, series, and OEM number
✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH