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Blade Adapter 7/8

Part Number: 581547901

11 Reviews

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Questions & Answers

Repair Instructions

*This part replaces obsolete part #: 850977, 5328509-77, 5328509, 532193825, 532851514, 532850977, 851514 and 193825.

Product Information

Description:

This blade adapter is an OEM direct from Craftsman for lawn mowers, rotary mowers and gas, walk behind lawn mowers. This part connects to the mower blade to the motor shaft. You will need a socket and a wrench set to replace this part. This blade adapter is made of metal and sold individually.

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

Poulan

PP752HIA Mower
PP752HLA Mower
PP752HW Mower
PP752PHJA Mower
PP752PHK Mower
PP752PHKA Mower
PP8000M Mower
PP8000MA Mower
PP800MI Mower
PP800MIA Mower
PP800MK Mower
PP800MKA Mower
PP800ML Mower
PP800MLA Mower
PP800MX Mower
PP820SA Mower
PP835 Mower
PP835C Mower
PP835SJA Mower
PP835SK Mower
PP835SKA Mower
PP850P Mower
PP850PA Mower
PP850PE Mower
PP850PEA Mower
PP850PX Mower
PPT730S Mower
XE735AR Mower
XE750HWAR Mower
XE750PAR Mower
XE835AR Mower
XE850PAR Mower
PO500N22SH (411396_12-06) Rotary Lawn Mower
PR6Y22CHA Power Propelled Rotary Lawn Mower
PO450N20S (430499) Lawn Mower
PO500N22S (425059) Lawn Mower
PO500N22S (430446) Lawn Mower
PR550N22SH Lawn Mower
S55HY22CHA Power Propelled Rotary Lawn Mower
PR6Y22CHB Power Propelled Rotary Lawn Mower
PO45N22S (96112002400) Rotary Lawn Mower
PO45N22S (96112001300) Rotary Lawn Mower
WET5R301B Rotary Lawn Mower
PR65Y21CB Rotary Lawn Mower
96134000800 Lawn Mower
S65N22CHA Power Propelled Rotary Lawn Mower
PR65Y21MA (2002) Lawn Mower

Weed Eater

WE300N20S Walk Behind Lawn Mower
WE986RC Walk Behind Lawn Mower
96114000316 Rotory Lawn Mower
96114002300 Rotary Lawn Mower
96114001502 Mulching Mower
96114000201 Rotary Mower
96112009001 Rotary Mower
96116000100 Gas Rotary Lawn Mower
96114000410 Rotary Lawn Mower
96114001503 Rotary Lawn Mower
WE977REA (1999) 22" Rear Bagger Lawn Mower
WM45N22SA Rotary Lawn Mower
96114000401 Rotary Mower
96116000301 Rotary Lawn Mower
96114001501 Rotary Lawn Mower
96112011501 (2012-05) Rotary Lawn Mower
96114000311 Rotary Lawn Mower

Craftsman

917377151 Lawn Mower
917378320 Rotary Mower
917388721 Walk Behind Lawnmower
917377590 Mower
917377540 Lawn Mower
917388732 Gas Walk Behind Lawn Mower
917.388600 Lawn Mower
917376810 Lawn Mower
917.377271 Rotary Mower
917374371 Lawn Mower
917377522 Rotary Mower

917388620 Lawn Mower
917378781 Gas, Walk-Behind Lawn Mower
917372471 Mower
917386152 Rotary Lawn Mower
917385127 Mower
917372822 Lawn Mower
917378420 Rotary Lawn Mower
917389391 Rotary Lawn Mower
917377131 Gas, Walk Behind Lawn Mower
917378410 Gas, Walk Behind Lawn Mower

Expand the 150+ compatible machines

Questions & Answers

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Repair Instructions: Submitted by Customers Like You

3 of 3 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

22" Deck Blade - 532141114

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set, Rubber mallet

Cracked adapter, needed a new blade

Remove the blade bolt and the washers
Remove the blade
Remove the cracked adapter
Line up the key in the adapter to the keyway in the shaft and tap it on with a mallet
Place the new blade and washers on the spindle
Tighten the blade bolt

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3 of 3 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Socket set, Wrench Set

Old blade adaptor became worn and the blade rattled and the lawn mower would shake.

I'm getting smarter. Take pictures with your phone. Undo everything. Put in the reverse order using the new part. Tighten and check to make sure else there will be wobble and rattle as before the repair. It's so simple I did if for my riding lawnmower as well.

A tip I should have, would have, could have: Buy the blade replacement online at the same time and get the thatching type with fans of steel cut into the blades. You'll get a wonderful, new, even cut with little thatch.

Another tip: Keep the old parts you take off on nails and hooks so you can know which ones to replace next time.

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2 of 2 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade, 20 Inch - 532145106

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set

Needed a new blade and adapter as old blade was bent after hitting rock.

Removed the blade bolt and washers, then the old blade. Removed the blade adapter.
Tapped the new blade adapter on, then installed the new blade, blade washers and tightened the blade bolt.

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1 of 1 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set

The blade was loose.

Removed the blade and the blade adapter then installed the adapter then the blade.

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Tool Type:

Lawn Mower

Parts Used:

Hinge Rod - 532160833

Lock Washer - 596238701

Hardened Washer - 532851074

Hex Head Screw - 532851084

Mower Blade (22-Inch) - 532406713

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Pliers, Power Drill, Socket set, Wrench Set

Engine went , had to replace engine with all sub parts.

1. Removed old blade and engine.
2. Cleaned up everything.
3. Installed sub parts on new motor.
4. Installed new motor on deck.
5.Installed new blade hub on motor shaft.
6. Installed new blade.
7. Installed new throttle cable.
8.Completed all sub components on motor and deck.
9. Added oil and gas.
10. Start engine for breakin and test cut.

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Tool Type:

Lawn Mower

Parts Used:

Mower Blade (22-Inch) - 532406713

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Socket set, Wrench Set

Blade loose, starter cable broken

New starter cable and blade

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Tool Type:

Lawn Mower

Parts Used:

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set

pine on adapter sheared

remove bolt and blade
pull off adapter put new one on
replace blade and bolt

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Tool Type:

Lawn Mower

Parts Used:

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set

Nipples on blade adapter were sheared when my wife hit a rock.

1. Using wrench unscrewed the blade from the blade adapter.
2. Blade adapter slid off the drive shaft.
3. installed new blade adapter by sliding on drive shafe.
4. installed cutting blade to the blade adapter.
5. using wrench I screwed the blade and the adapter to the drive shaft.
6. worked fine after tightening the bolt.

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Tool Type:

Lawn Mower

Parts Used:

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set, Hammer

Blade Adapter

broke the old one, hammered on new one :)

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Thanks for voting and helping fellow customers!

Tool Type:

Lawn Mower

Parts Used:

Lock Washer - 596238701

Hex Head Screw - 532851084

Blade Adapter 7/8 - 581547901

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, Metal file

Key sheared off in blade adapter on lawn mower

Old bolt was sheared off and old adapter had to be removed with a gear puller.
The end of the motor crankshaft had to be cleaned up for the new adapter to fit.
After this everything went back together OK.

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Reviews

Average Rating (out of 5):

11 Reviews

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It was the right part

The part I ordered worked just fine. I am glad to find you folks. Thank you Jeff Brackett

Guest - May 12, 2023 Verified Purchase

Prefect replacement

Exact replacement Easy as 1 2 3

Guest - November 16, 2022 Verified Purchase

The parts picture made it easy for me to determine which parts to order.

Quick delivery and both parts fit perfectly.

Guest - September 26, 2022 Verified Purchase

Easy repair, part performs as expected.

Part arrived on schedule and in good condition.

Guest - October 27, 2021 Verified Purchase

Great company to deal with. Thank you.

Very fast delivery, correct part. Will do more business with them in the future. Very satisfied.

Guest - March 27, 2021 Verified Purchase

Good

Good fit, works good

Guest - October 13, 2020 Verified Purchase

Perfect match

New part, perfect fit

Guest - July 23, 2020 Verified Purchase

Perfect fit, easy to repair, fast shipping. Thanks

Arrived quickly, easy to install.

Guest - September 7, 2019 Verified Purchase

Perfect fit

This part was the right part, shipped on time and worked as described. Very good purchase experience!

Guest - August 22, 2019 Verified Purchase

This part for my mower fits prefect!

I ordered a part similar to this from the hardware store and in 3 weeks still have not seen it. Ordered this part from here and got it 2 days later, fits prefect!

Guest - June 22, 2019 Verified Purchase

Verified Purchase

eReplacementParts Team

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Product Information

Blade Adapter 7/​​8

Blade Adapter 7/8