Walk-behind mower · Ariens PRO21SCH / LM21S Classic and others
Ariens walk-behind mower parts: blades and drive belt
- 21 in deck
Fits 7 models. Check yours is listed
- 911102 PRO21SCH · 21 in deck
- 911183 LM21S Classic · 21 in deck
- 911184 LM21SW Classic · 21 in deck
- 911193 LM21S Classic · 21 in deck
- 911194 LM21SW Classic · 21 in deck
- 911533 LM21S · 21 in deck
- 911534 LM21SW · 21 in deck
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Parts for these 7 models
| Part | Number and size | Buy |
|---|---|---|
| Blade |
Ariens 01137000
Qty 1
|
Search Amazon for 01137000 |
| Drive belt |
Ariens 07217100
|
Search Amazon for 07217100 |
| Mulch plug |
Ariens 71102700
|
Search Amazon for 71102700 |
Checked October 6, 2026 · 32 sources
Maintenance schedule
Ariens 911102, 911183, 911184, 911533, 911534
- After first five (5) hours of operation. Then change oil after every 25 hours of operation.
- Change engine crankcase oil
- Every 100 hours of operation or each year
- Replace spark plug
- Every 100 hours of operation or yearly (more often if conditions require)
- Remove blower housing and clean cooling fins
Ariens 911193, 911194
- Every 100 hours of operation or each year
- Replace spark plug
- Every 100 hours of operation or yearly (more often if conditions require)
- Remove blower housing and clean cooling fins
As printed in each model's operator's manual, forms 01250000C, 04056700, 04502200, 04502200B.
Where these numbers come from (32 sources)
Every part number above is printed in at least two of these. Checked October 6, 2026. How we check parts.
- Operator's manual 01250000C · Ariens Company · 4/05
Details
Walk Behind Lawn Mower Owner/Operator Manual, models 911086 LM21, 911102 PRO21SCH, 911330 LM21SW, 911396 PRO21SW, 911514 LM21S, 911525 LM21SW, 911531 LM21S, 911532 LM21, 911533 LM21S, 911534 LM21SW (cover; Service Parts and Accessories page 26; Specifications page 27; Maintenance pages 17-18) (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911102 SN 000101-000444: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (01182400 '21" MOWER TUNGSTEN' (911102) recorded as superseded to 01137000) (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911102 SN 000101-000444: Mower Pan And Bag item 13 71102700 'MULCH MASTER MULCHER ACCESSORY' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911102 SN 000445 & above: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (01182400 '21" MOWER TUNGSTEN' (911102) recorded as superseded to 01137000) (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911102 SN 000445 & above: Mower Pan And Bag item 13 71102700 'MULCH MASTER MULCHER ACCESSORY' (used for machine and part numbers)
- Operator's manual 04056700 · Ariens Company · 2/10
Details
Walk Behind Lawn Mower Owner/Operator Manual, models 911160 LM21 Classic, 911182 LM21 Classic, 911183 LM21S Classic, 911184 LM21SW Classic (Service Parts and Accessories page 26; Specifications page 27; Maintenance pages 17-19; serial number label, Introduction) (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911183 SN 000101 & above: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911183 SN 000101 & above: Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911184 SN 000101 & above: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911184 SN 000101 & above: Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Operator's manual 04502200 · Ariens Company · 2/12
Details
Walk Behind Lawn Mower Owner/Operator Manual, models 911170 LM21 Classic, 911192 LM21 Classic, 911193 LM21S Classic, 911194 LM21SW Classic (Service Parts and Accessories page 26; Specifications page 27; Maintenance pages 17-19; serial number label, Introduction) (used for machine and part numbers)
- Operator's manual 04502200B · Ariens Company · 5/15
Details
Walk Behind Lawn Mower Owner/Operator Manual (later edition of 04502200), models 911170 LM21P Classic, 911193 LM21SP Classic, 911194 LM21SPSW Classic, all SN 022000 + (Service Parts page 23; Specifications page 25) (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 000101-021999: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 000101-021999: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 022000-022896: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 022000-022896: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 022897-029999: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 022897-029999: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 030000 & above: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911193 SN 030000 & above: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 000101-021999: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 000101-021999: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 022000-023524: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 022000-023524: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 023525-029999: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 023525-029999: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 030000 & above: Engine, Blade And Belt item 1 07217100 'V-BELT, 3L-COGGED' and item 12 01137000 '21" MOWER BLADE' (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911194 SN 030000 & above: Accessories item 1 71102700 'MULCH MASTER MULCHER ACCESSORY'; Mower Pan And Bag item 11 01163500 'MULCH MASTER PLUG', recorded as superseded to 71102700 (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL) · IPL edition whose model notes list 911086, 102, 330, 396, 514, 525, 531, 532, 533, 534 (the same set as manual 01250000C)
Details
Ariens 911533 (LM21S) SN 000734 & above: Engine, Blade And Belt (item 1 07217100 'V-BELT, 3L-COGGED'; item 12 01137000 '21" MOWER BLADE' for 911086, 102, 514, 525, 531, 533, 534) and Mower Pan And Bag (item 13 71102700 'MULCH MASTER MULCHER ACCESSORY') (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911533 (LM21S) SN 000734 & above: Mower Pan And Bag diagram (item 13 71102700, no model restriction) (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL) · IPL edition whose model notes list 911086, 102, 330, 396, 514, 525, 531, 532, 533, 534 (the same set as manual 01250000C)
Details
Ariens 911534 (LM21SW) SN 001009 & above: Engine, Blade And Belt (item 1 07217100 'V-BELT, 3L-COGGED'; item 12 01137000 '21" MOWER BLADE' for 911086, 102, 514, 525, 531, 533, 534) and Mower Pan And Bag (item 13 71102700 'MULCH MASTER MULCHER ACCESSORY') (used for machine and part numbers)
- Parts list · PartsTree (dealer copy of Ariens IPL)
Details
Ariens 911534 (LM21SW) SN 001009 & above: Mower Pan And Bag diagram (item 13 71102700, no model restriction) (used for machine and part numbers)