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Locknut 12x1.75 537543901

Part Number: 537543901

Leaves our warehouse within
7 - 12 business days

Questions & Answers

Repair Instructions

*This part replaces obsolete part #: 502045501 (R), 502045501 and 5020455-01.

Product Information

Description:

This is high-quality OEM supplied part which is specially designed for use with Husqvarna and Jonsered handheld lawn and garden equipment. It is an identical replacement for a missing or damaged locknut that was originally installed on a new unit. The purpose of this hardware is to secure the cutting blade. Note, it is a nut that resists loosening under vibrations and torque. Please make sure to refer to the owners manual and the appropriate diagrams of your model for the correct application of this component. Keep in mind this high-quality locknut is made of durable metal and is sold individually. You will need a wrench to secure or remove it.

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

Husqvarna

120 L (1993-02) Line Trimmer
120 LC (1993-02) Line Trimmer
120 R (1993-02) Line Trimmer
125 LD (1992-01) Line Trimmer
125 LD (1993-04) Line Trimmer
125 R (1991-11) Line Trimmer
125 R (1992-01) Line Trimmer
125 R (1993-04) Line Trimmer
125 RD (1991-11) Line Trimmer
125 RD (1992-01) Line Trimmer
125 RD (1993-04) Line Trimmer
132 L (1991-11) Line Trimmer
132 L (1992-01) Line Trimmer
132 L (1993-04) Line Trimmer
132 LD (1991-11) Line Trimmer
132 LD (1992-01) Line Trimmer
132 LD (1993-04) Line Trimmer
132 R (1991-11) Line Trimmer
132 R (1992-01) Line Trimmer
132 R (1993-04) Line Trimmer
132 RD (1991-11) Line Trimmer
132 RD (1992-01) Line Trimmer
132 RD (1993-04) Line Trimmer
22 R (1986-10) Line Trimmer
22 R (1988-01) Line Trimmer
22 RL (1988-01) Line Trimmer
235 R (1998-01) Line Trimmer
25 R (1986-10) Line Trimmer
25 R (1988-01) Line Trimmer
25 RL (1988-01) Line Trimmer
26 L (1993-05) Line Trimmer
26 LC (1993-05) Line Trimmer
26 R (1993-05) Line Trimmer
125RB (1990-11) Brushcutter
125RB (1993-04) Brushcutter
132R (1992-02) Brushcutter
132R (1993-04) Brushcutter
132RB (1990-11) Brushcutter
132RB (1993-04) Brushcutter
132RJ (2004-09) Brushcutter
232R (1995-11) Brushcutter
232R (1997-02) Brushcutter
232R (2000-04) Brushcutter
232R (2002-09) Brushcutter
232R (2006-01) Brushcutter
232RD (2000-04) Brushcutter
235R (1991-12) Brushcutter

235R (1993-02) Brushcutter
235R (1994-02) Brushcutter
235R (1995-11) Brushcutter
235R (1997-02) Brushcutter
235R (2000-04) Brushcutter
235R (2002-09) Brushcutter
235R (2006-01) Brushcutter
235RII (2002-09) Brushcutter
240EPA (2001-01) Brushcutter
240R (1990-01) Brushcutter
240R (1994-04) Brushcutter
240R (1996-06) Brushcutter
240R (1998-10) Brushcutter
240REPA (2002-08) Brushcutter
240RJ (2000-04) Brushcutter
240RJ (2002-09) Brushcutter
245EPA (2001-01) Brushcutter
245R (1990-01) Brushcutter
245R (1994-04) Brushcutter
245R (1996-06) Brushcutter
245R (1998-10) Brushcutter
245REPA (2002-08) Brushcutter
245RX (1990-01) Brushcutter
245RX (1994-04) Brushcutter
245RX (1996-06) Brushcutter
245RX (1998-10) Brushcutter
245RX (2002-08) Brushcutter
250R (1994-10) Brushcutter
250R (1995-10) Brushcutter
250R (1997-08) Brushcutter
250R (2001-05) Brushcutter
250R (2006-01) Brushcutter
250RX (1994-10) Brushcutter
250RX (1995-10) Brushcutter
250RX (1997-08) Brushcutter
252RX (1999-04) Brushcutter
252RX (1997-08) Brushcutter
252RX (2001-05) Brushcutter
252RX (2002-08) Brushcutter
252RX (2006-01) Brushcutter
265RX (1992-05) Brushcutter
265RX (1995-11) Brushcutter
265RX (1993-03) Brushcutter
265RX (2002-08) Brushcutter
265RX (2006-01) Brushcutter
125L (1990-11) Trimmer

Jonsered

Expand the 150+ compatible machines

Products Compatibility

This item works with the following types of products:

• Trimmer

Questions & Answers for Locknut 12x1.75

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Repair Instructions: Submitted by Customers Like You

2 of 2 people found this instruction helpful

Tool Type:

Trimmer

Parts Used:

Locknut 12x1.75 - 537543901

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set

Lost the nut off trimmer steel blade.

Screwed the left hand threaded nut onto the drive shaft.

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Tool Type:

Trimmer

Parts Used:

Throttle Trigger - C450000183

Locknut 12x1.75 - 537543901

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Screwdriver, None

Nothing

Remove the handle and place the new trigger switch in place then retighten the screws

Did you find this story helpful?

Thanks for voting and helping fellow customers!

Tool Type:

Trimmer

Parts Used:

Locknut 12x1.75 - 537543901

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set

Lock nut that holds brush cutting blade was missing.

Installed brush cutter blade, retaining washer and installed locking but purchased from this website. Had tried to purchase locally with no success.

Did you find this story helpful?

Thanks for voting and helping fellow customers!

Product Information

Locknut 12x1.​​75 537543901

Questions & Answers for Locknut 12x1.​75

Locknut 12x1.75 537543901

Questions & Answers for Locknut 12x1.75