Easy
Less than 15 minutes
This is an authentic Murray replacement part, sourced from the original manufacturer for use with walk-behind lawnmowers. The right side pinion connects to the transmission axle and is used to drive the mower's rear wheel. This pinion gear is available as an individual replacement part, please see illustrated part list for related parts.
Pinion Gear 21rb Tt R 671904MA
OEM part for: Murray
Part Number: 671904MA
$8.67
Usually ships in 7 - 12 business days
Leaves our warehouse within 7 - 12 business days
Compatibility
This part will fit the following 20 machines
Murray
218910x43B 21" Lawn Mower View Diagrams & Manuals
218910x43F 21" Lawn Mower View Diagrams & Manuals
218950x92A 21" Lawn Mower View Diagrams & Manuals
218950x92B 21" Lawn Mower View Diagrams & Manuals
219931x683A (2001) 21" Lawn Mower View Diagrams & Manuals
219931x692A (2001) 21" Lawn Mower View Diagrams & Manuals
21997x50A (2001) 21" Lawn Mower View Diagrams & Manuals
21845x6A (2000) 21" Lawn Mower View Diagrams & Manuals
21855x6B (2000) 21" Lawn Mower View Diagrams & Manuals
21875x51C (2000) 21" Lawn Mower View Diagrams & Manuals
21876x50C (2000) 21" Lawn Mower View Diagrams & Manuals
21898x89B (2000) 21" Lawn Mower View Diagrams & Manuals
21995x8C (2000) 21" Lawn Mower View Diagrams & Manuals
21997x31A (2000) 21" Lawn Mower View Diagrams & Manuals
21997x8A (2000) 21" Lawn Mower View Diagrams & Manuals
21975x92C (1997) Walk-Behind Mower View Diagrams & Manuals
21997x50A (2003) Walk-Behind Mower View Diagrams & Manuals
218910x43B (2004) Walk-Behind Mower View Diagrams & Manuals
218950x92A (2004) Walk-Behind Mower View Diagrams & Manuals
218950x92B (2004) Walk-Behind Mower View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Lawn Mower Parts
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Gear was worn, where pin meets internal lobs of gear
Joe - May 27, 2023
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Socket set
Parts Used
1. Raised rear wheels of mower off of ground.
2. Removed Right wheel with 9/16 deep socket.
3. Removed Gear C clip retainer with screwdriver.
4. Pulled Gear off, cleaned and greased pin.
5. Installed New Gear, installed C clip retainer.
6. Installed wheel.
2. Removed Right wheel with 9/16 deep socket.
3. Removed Gear C clip retainer with screwdriver.
4. Pulled Gear off, cleaned and greased pin.
5. Installed New Gear, installed C clip retainer.
6. Installed wheel.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
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