PTO Shaft & Pump Shaft Adaptors

Tractor PTO & Pump Shaft Adaptors from Sparex & Spenco

Connect your PTO-driven implements and hydraulic pumps with confidence using quality shaft adaptors from Sparex and Spenco. Whether you're adapting between shaft sizes, changing spline configurations, or connecting a pump to a non-standard PTO output, the right adaptor ensures a secure, correctly-fitted drive connection every time.

Incorrect shaft fitment puts stress on gearboxes, pumps, and drivelines — genuine adaptors from trusted brands eliminate that risk and keep your equipment running within spec.

Common Applications

Adapting between 1-3/8" and 1-3/4" PTO shaft sizes
Connecting hydraulic pumps to tractor PTO outputs
Spline conversion for implement compatibility
Replacement of worn or damaged shaft adaptors

Brands

Sparex — OEM-quality agricultural driveline components
Spenco — specialist PTO and pump shaft solutions

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Tractor PTO 1 3/8'' - 6 spline Extension shaft

$57.19 - $57.19

$57.19

$57.19 - $57.19

$57.19

Extension Shaft 1 3/8'' - 6 spline

In stock

Standard Applications, suitable for up to 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 6, this PTO Adaptor in...

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tractor Pto Extension Shaft 1 3/8'' - 6 spline (Medium)

$39.16 - $39.16

$39.16

$39.16 - $39.16

$39.16

Extension Shaft 1 3/8'' - 6 spline (Medium)

Low stock

Standard Applications, suitable for up to 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 6, this PTO Adaptor inc...

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Tractor PTO Extension Shaft 1 3/8'' - 6 spline (short)

$36.94 - $36.94

$36.94

$36.94 - $36.94

$36.94

Extension Shaft 1 3/8'' - 6 spline (short)

In stock

Standard Applications, suitable for up to 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 6, this PTO Adaptor inc...

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PTO Adaptor - Female spline 1 1/8'' - 6 x Male spline 1 3/8'

$45.95 - $45.95

$45.95

$45.95 - $45.95

$45.95

Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6

In stock

Standard Applications, suitable for up to 70Hp. Common to use on Grey Fergy Tractors to adapt for Standard 6 spline PTO Shafts This adaptor is i...

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PTO Adaptor - Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6 with Clamp Bolt (b)

$101.29 - $101.29

$101.29

$101.29 - $101.29

$101.29

Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6 with Clamp Bolt.

Low stock

This PTO Adaptor is designed for compatibility with Grey Fergy Tractors, featuring a Female spline 1 1/8'' - 6 and a Male spline 1 3/8'' - 6. I...

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PTO Adaptor - Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 21 with Grub Screw.

$396.66 - $396.66

$396.66

$396.66 - $396.66

$396.66

Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 21 with Grub Screw.

Low stock

Featuring a Female spline of 1 3/4'' - 20 and a Male spline of 1 3/8'' - 21, this PTO Adaptor includes a Grub Screw Locking system to facilitat...

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PTO Adaptor - Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 6 with Grub Screw.

$395.84 - $395.84

$395.84

$395.84 - $395.84

$395.84

Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 6 with Grub Screw.

Low stock

Featuring a Female spline of 1 3/4'' - 20 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includes a Grub Screw Locking system to facilitate...

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$454.97 - $454.97

$454.97

$454.97 - $454.97

$454.97

Female spline 1 3/4'' - 6 x Male spline 1 3/8'' - 6 with Clamp Bolt.

Low stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/4'' - 6 and a Male spline of 1 3/8'' - 6, this PTO Adaptor include...

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Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with grub screw

$45.63 - $45.63

$45.63

$45.63 - $45.63

$45.63

Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Grub Screw.

Low stock

Featuring a Female spline of 1 3/8'' - 21 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includes a Grub Screw lock to facilitate a narrow ...

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PTO Adaptor - Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Quick Release Collor.

$106.85 - $106.85

$106.85

$106.85 - $106.85

$106.85

Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Quick Release Collar.

Low stock

Standard Applications, suitable for up to 70Hp. Featuring a Female spline of 1 3/8'' - 21 and a Male spline of 1 3/8'' - 6, this PTO Adaptor in...

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Female spline 1 3/8'' - 6 x Male spline 1 1/8'' - 6 with through bolt securing

$35.32 - $35.32

$35.32

$35.32 - $35.32

$35.32

Female spline 1 3/8'' - 6 x Male spline 1 1/8'' - 6 with through bolt securing

Low stock

Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 1/8'' - 6, this PTO Adaptor includes a through shaft bolt hole securing connect...

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Kubota Pto conversion shaft Female spline 1'' - 18 x Male spline 1 3/8'' - 6 with bolt locking

$237.56 - $237.56

$237.56

$237.56 - $237.56

$237.56

Female spline 1'' - 18 x Male spline 1 3/8'' - 6 with bolt locking

Low stock

Adaptor Assy Fits Kubota Tractors (limited models) Featuring a Female spline of 1" - 18 and a Male spline of 1 3/8'' - 6, this PTO Adaptor in...

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PTO Adaptor - Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 6 with Clamp Bolt.

$149.79 - $149.79

$149.79

$149.79 - $149.79

$149.79

HD. Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 6 with Clamp Bolt.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/4'' - 20 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includ...

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Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 6 with Quick Release Pin.

$169.21 - $169.21

$169.21

$169.21 - $169.21

$169.21

HD. Female spline 1 3/4'' - 20 x Male spline 1 3/8'' - 6 with Quick Release Pin.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/4'' - 20 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includ...

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PTO Adaptor - Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 21 with Quick Release Pin.

$241.93 - $241.93

$241.93

$241.93 - $241.93

$241.93

HD. Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 21 with Quick Release Pin.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 21 and a Male spline of 1 3/8'' - 21, this PTO Adaptor includ...

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PTO Adaptor - Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Clamp Bolt.

$262.61 - $262.61

$262.61

$262.61 - $262.61

$262.61

HD. Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Clamp Bolt.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 21 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includ...

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PTO Adaptor - Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Quick Release Pin. Spenco

$247.31 - $247.31

$247.31

$247.31 - $247.31

$247.31

HD. Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Quick Release Pin.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 21 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includ...

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$72.47 - $72.47

$72.47

$72.47 - $72.47

$72.47

HD. Female spline 1 3/8'' - 21 x Male spline 1 3/8'' - 6 with Quick Release Pin.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 21 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includ...

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Female spline 1 3/8'' - 6 x Male spline 1 1/8'' - 6 with Quick Release Pin

$77.72 - $77.72

$77.72

$77.72 - $77.72

$77.72

HD. Female spline 1 3/8'' - 6 x Male spline 1 1/8'' - 6 with Quick Release Pin.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 1/8'' - 6, this PTO Adaptor include...

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PTO Adaptor - Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 21 with Clamp Bolt.

$340.62 - $340.62

$340.62

$340.62 - $340.62

$340.62

HD. Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 21 with Clamp Bolt.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 21, this PTO Adaptor include...

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Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 21 with Quick Release Pin.

$234.85 - $234.85

$234.85

$234.85 - $234.85

$234.85

HD. Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 21 with Quick Release Pin.

Low stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 21, this PTO Adaptor includ...

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tractor PTO extension Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 6 with Clamp Bolt.

$265.24 - $265.24

$265.24

$265.24 - $265.24

$265.24

HD. Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 6 with Clamp Bolt.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 6, this PTO Adaptor includes...

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Spenco Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 6 with Quick Release Pin.

$309.71 - $309.71

$309.71

$309.71 - $309.71

$309.71

HD. Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 6 with Quick Release Pin.

In stock

Heavy Applications, suitable for over 70Hp. Featuring a Female spline of 1 3/8'' - 6 and a Male spline of 1 3/8'' - 6, this PTO Adaptor inclu...

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$0.00 - $0.00

$0.00

$40.28

$40.28 - $40.28

$40.28

PTO Pump Adaptor - Bore Ø1'' x Female spline 1 3/8'' - 6 with Grub Screw.

Low stock

Featuring a Female spline of 1 3/8'' - 6 and a Pump connection Ø1'' with grub screw, this PTO Adaptor includes a Locating bolt for PTO connection. ...

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PTO Pump Adaptor - Bore Ø15/16'' x Female spline 1 3/8'' - 6 with Grub Screw. rear view

$105.09 - $105.09

$105.09

$105.09 - $105.09

$105.09

PTO Pump Adaptor - Bore Ø15/16'' x Female spline 1 3/8'' - 6 with Grub Screw.

Low stock

Featuring a Female spline of 1 3/8'' - 6 and a Pump connection Ø15/16'' with grub screw, this PTO Adaptor includes a quick release pin for PTO conn...

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PTO Pump Adaptor - Bore Ø3/4'' x Female spline 1 3/8'' - 6 with Grub Screw.

$0.00 - $0.00

$0.00

$39.84

$39.84 - $39.84

$39.84

PTO Pump Adaptor - Bore Ø3/4'' x Female spline 1 3/8'' - 6 with Grub Screw.

Low stock

Featuring a Female spline of 1 3/8'' - 6 and a Pump connection Ø1'' with grub screw, this PTO Adaptor includes a Locating bolt for PTO connection. ...

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PTO Pump Adaptor - Bore Ø7/8'' x Female spline 1 3/8'' - 6 with Grub Screw.

$57.61 - $57.61

$57.61

$57.61 - $57.61

$57.61

PTO Pump Adaptor - Bore Ø7/8'' x Female spline 1 3/8'' - 6 with Grub Screw.

Out of stock

Featuring a Female spline of 1 3/8'' - 6 and a Pump connection Ø1'' with grub screw, this PTO Adaptor includes a Locating bolt for PTO connection. ...

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$78.46 - $78.46

$78.46

$78.46 - $78.46

$78.46

PTO QR Sleeve - Female spline 1 3/8'' - 6 with Quick Release Pin.

In stock

Featuring a Female spline of 1 3/8'' - 6 Spline this push Button Sleeve can be used to attached to your requirements (welding/machining required) ...

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$21.56 - $21.56

$21.56

$21.56 - $21.56

$21.56

PTO Sleeve Increaser - Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6

Low stock

Featuring a Female spline of 1 1/8'' - 6 Spline to increase to 1 3/8" - 6 Spline, this sleeve is for light duty use. Female spline Ø (ins) 1...

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$0.00 - $0.00

$0.00

$14.12

$14.12 - $14.12

$14.12

PTO Sleeve Increaser - Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6 (short version)

Low stock

Featuring a Female spline of 1 1/8'' - 6 Spline to increase to 1 3/8" - 6 Spline, this sleeve is for light duty use. Female spline Ø (ins) 1...

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$36.58 - $36.58

$36.58

$36.58 - $36.58

$36.58

PTO Sleeve Increaser - Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6 (socket version)

In stock

Featuring a Female spline of 1 1/8'' - 6 Spline to increase to 1 3/8" - 6 Spline, this sleeve is for light duty use. (use metric roll pin Ø8mm x 28...

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$33.14 - $33.14

$33.14

$33.14 - $33.14

$33.14

PTO Splined Coupling - Female spline 1 1/8'' sleeve

In stock

Female spline Ø (ins) 1 1/8 Length (ins) 2 3/4 Length (mm) 70 Number of female splines 6 Outside Ø (ins) 1 37/64 Ou...

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$97.06 - $97.06

$97.06

$97.06 - $97.06

$97.06

PTO Splined Coupling - Female spline 1 3/4'' - 20 sleeve

In stock

Female spline Ø (ins) 1 3/4 Length (ins) 3 3/4 Length (mm) 95 Number of female splines 20 Outside Ø (ins) 2 23/64 O...

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$81.74 - $81.74

$81.74

$81.74 - $81.74

$81.74

PTO Splined Coupling - Female spline 1 3/4'' - 6 sleeve

In stock

Female spline Ø (ins) 1 3/4 Length (ins) 3 3/4 Length (mm) 95 Number of female spline 6 Outside Ø (ins) 2 23/64 Out...

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$42.52 - $42.52

$42.52

$42.52 - $42.52

$42.52

PTO Splined Coupling - Female spline 1 3/8'' - 21 sleeve

In stock

Female spline Ø (ins) 1 3/8 Length (ins) 3 3/4 Length (mm) 95 Number of female spline 21 Outside Ø (ins) 1 3/4 Out...

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150mm PTO sleeve coupling 1 3/8 6 spline

$0.00 - $0.00

$0.00

$61.82

$61.82 - $61.82

$61.82

PTO Splined Coupling - Female spline 1 3/8'' - 6 sleeve (150mm long)

Low stock

Female spline Ø (ins) 1 3/8 Length (ins) 6 Length (mm) 150 Number of female spline 6 Outside Ø (ins) 1 31/32 Outside Ø ...

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6 spline female coupling 1 3/8 tractor shaft

$27.25 - $27.25

$27.25

$27.25 - $27.25

$27.25

PTO Splined Coupling - Female spline 1 3/8'' - 6 sleeve (95mm long)

In stock

Female spline Ø (ins) 1 3/8 Length (ins) 3 3/4 Length (mm) 95 Number of female spline 6 Outside Ø (ins) 1 47/64 Ou...

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TEA 20 Pto Over run clutch adaptor shaft

$183.48 - $183.48

$183.48

$183.48 - $183.48

$183.48

Sparex PTO Over-Running Adaptor - Female spline 1 1/8'' - 6 x Male spline 1 3/8'' - 6 with Locking Pin.

In stock

PTO Overrunning clutch and conversion adaptor in one, ideal for use with Slashers etc. Adaptor Assy Fits Massey Ferguson TE20, TEA20, TED20, TEF20,...

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Spenco TEA 20 Pto Over run clutch adaptor shaft

$165.14 - $165.14

$165.14

$165.14 - $165.14

$165.14

Spenco PTO Over-Running Adaptor - Female spline 1 3/8'' - 6 x Male spline 1 3/8'' - 6 with Locking Pin.

In stock

PTO Overrunning clutch , ideal for use with Slashers etc. Adaptor Assy Fits Massey Ferguson TE20, TEA20, TED20, TEF20, TO20 (Grey Fergies) that hav...

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