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Agri Supply is proud to stock a wide selection of PTO Adapters along with our huge variety of agriculture, gardening, cooking and outdoor products. We stand behind all 26,000 items we sell with our Satisfaction Guarantee. Customer Service is the cornerstone of our family business, and has been for over 50 years.

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5/16 x 2-1/4 PTO Lock Pin Square
image 5/16" x 2-1/4" PTO Lock Pin With Square Wire Loop
Item # 105558
$0.79 EA
PTO Link Tractor Plate Female
image PTO Link™ Plate, Female
Item # 123203
$189.66 EA
PTO Link Implement Plate Male
image PTO Link™ Plate, Male
Item # 123204
The average rating for this product is 5 out of 5 stars
$189.66 EA
1/4 x 2-1/4 PTO Lock Pin
image 1/4" x 2-1/4" PTO Square Lock Pin
Item # 105560
$0.59 EA
5/16 X 2-1/4 Pto Lock Pin Round
image 5/16" x 2-1/4" PTO Lock Pin With Round Wire Loop
Item # 105559
$0.79 EA
Pto Adapter 1-3/8 6 Spl Male And Female
image PTO Adapter 1-3/8" 6 Spline Female & Male
Item # 106079
The average rating for this product is 5 out of 5 stars
$33.99 EA
PTO Adapter, 1-3/8" x 6 Spline x 1" Round
image 1-3/8" x 6 Spline x 1" Round, Set Screw Type PTO Adapter with 1/4" Keyway
Item # 38508
$47.99 EA
113-2000 PTO Adapter 1-3/8" x 6 Spline x 1-1/4" Round
image 113-2000 PTO Adapter 1-3/8" x 6 Spline x 1-1/4" Round
Item # 38507
$47.99 EA
Splined End Shaft
image 112A2206 1 3/8" X 6 X 12" SPLINED END S
Item # 18151
$54.99 EA
Pump Adapter Spline Key Way
image 113-2200 1-3/8" x 6 Spline, Set Screw Type Pump Adapter with Keyway
Item # 36099
$54.99 EA
1in. Coupler x 1-3/8 In. x 6 spline
image 1" Coupler x 1-3/8" x 6" To 1-3/8" x 6 Spline
Item # 18162
The average rating for this product is 5 out of 5 stars
$61.99 EA
Pto Adapter Round Bore Spline Adapter
image 114-1500 PTO ADAPTER 15/16" ROUND BORE
Item # 18163
$61.99 EA
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PTO adapters from Agri Supply can extend your power take-off, helping it to fit on some older models of tractors. Our tractor PTO parts mean you don't have to retire that tractor just yet and instead can get that PTO hooked up again. With overriding clutches, you don't have to worry about equipment pushing the tractor. From PTO pins to PTO spline adapters, we have more than 26,000 items for farm, ship, home and garden.

PTO adapters work with different sizes of splines, both male and female. We have tractor PTO parts to have your old model tractor up to modern demands.

Find PTO adapters at Agri Supply as well as PTO adapter sleeves so you can take care of your own equipment. We have tractor PTO parts, including overriding clutches that are ideal for older model tractors to keep the equipment from pushing the tractor. Overriding clutches are designed to free wheel smoothly when the PTO speed on an implement exceeds the tractor's speed. We have PTO pins in different shapes and sizes as well.

We have PTO adapters and other PTO shaft accessories for different horsepowers and rpm operating speeds. Our tractor PTO parts include PTO spline adapters so you can make your power take-off run better. Overriding clutches are important safety features, especially for older tractors. We also have PTO pins that are one piece to eliminate the loss of cotter pins, and these pins will fit most quick release applications.