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Home > Spark Plug
 

Spark Plug

We offer the largest selection of Spark plug for lawn mowers on the Net. We offer all the popular brands of Champion Spark Plug, NGK spark Plug, Autolite spark plug, Bosch spark plugs , Denso spark plugs to name a few. Spark plug is the center piece of any engine and should be replaces every year. 
Need Help how to replace the spark plug ? see instruction below.
 
 Sub-Categories
Autolite Spark Plug
Autolite Spark Plug
Bosch Spark Plug
Bosch Spark Plug
Champion Spark Plug
Champion Spark Plug
Denso Spark Plug
Denso Spark Plug
NGK Spark Plug
NGK Spark Plug
 
 Products (Total Items: 85)
Rotary # 6933 Lawn Mower Spark Plug for Champion Spark Plug # RC12YC SHOP PACK
Rotary # 6933 Lawn Mower Spark Plug for Champion Spark Plug # RC12YC SHOP PACK
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Your Price: $49.99
On sale: $48.99 On Sale
Rotary # 7021 Lawn Mower Spark Plug for NGK # XR-5
Rotary # 7021 Lawn Mower Spark Plug for NGK # XR-5
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 7149 Lawn Mower Spark Plug for Champion Spark Plug # N9YC
Rotary # 7149 Lawn Mower Spark Plug for Champion Spark Plug # N9YC
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 7150 Lawn Mower Spark Plug for Champion Spark Plug # L86C
Rotary # 7150 Lawn Mower Spark Plug for Champion Spark Plug # L86C
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 7186 Lawn Mower Spark Plug for Champion Spark Plug # L78C
Rotary # 7186 Lawn Mower Spark Plug for Champion Spark Plug # L78C
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Your Price: $4.49
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Rotary # 7187 Lawn Mower Spark Plug for Champion Spark Plug # L82C
Rotary # 7187 Lawn Mower Spark Plug for Champion Spark Plug # L82C
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 2529  Champion Spark Plug CJ8 SHOP PACK (24)
Rotary # 2529 Champion Spark Plug CJ8 SHOP PACK (24)
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Your Price: $45.99
On sale: $44.99 On Sale
Rotary # 2530  Champion Spark Plug J17LM SHOP PACK (24)
Rotary # 2530 Champion Spark Plug J17LM SHOP PACK (24)
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Your Price: $45.99
On sale: $44.99 On Sale
Rotary # 2531  Champion Spark Plug J8C SHOP PACK (24)
Rotary # 2531 Champion Spark Plug J8C SHOP PACK (24)
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Your Price: $45.99
On sale: $44.99 On Sale
Rotary # 2532  Champion Spark Plug CJ14 SHOP PACK (24)
Rotary # 2532 Champion Spark Plug CJ14 SHOP PACK (24)
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Your Price: $45.99
On sale: $44.99 On Sale
Rotary # 2553  NGK Spark Plug BR8ES
Rotary # 2553 NGK Spark Plug BR8ES
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 2554  NGK Spark Plug BR9ES
Rotary # 2554 NGK Spark Plug BR9ES
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12542 DENSO Spark Plug # W20M-U
Rotary # 12542 DENSO Spark Plug # W20M-U
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 12543 DENSO Spark Plug # W16EX-U
Rotary # 12543 DENSO Spark Plug # W16EX-U
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 12544 DENSO Spark Plug # W14LM-U
Rotary # 12544 DENSO Spark Plug # W14LM-U
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12545 DENSO Spark Plug # W22MP-U
Rotary # 12545 DENSO Spark Plug # W22MP-U
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Your Price: $4.49
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Rotary # 12546 DENSO Spark Plug # W20MP-U
Rotary # 12546 DENSO Spark Plug # W20MP-U
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 12547 DENSO Spark Plug # W20EX-U
Rotary # 12547 DENSO Spark Plug # W20EX-U
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 12548 DENSO Spark Plug # W14-U
Rotary # 12548 DENSO Spark Plug # W14-U
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Your Price: $4.49
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Rotary # 12549 DENSO Spark Plug # W22M-U
Rotary # 12549 DENSO Spark Plug # W22M-U
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 12550 DENSO Spark Plug # W20EPR-U
Rotary # 12550 DENSO Spark Plug # W20EPR-U
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12551 DENSO Spark Plug # Q16PR-U
Rotary # 12551 DENSO Spark Plug # Q16PR-U
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Your Price: $4.99
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Rotary # 12552 DENSO Spark Plug # W22MPR-U
Rotary # 12552 DENSO Spark Plug # W22MPR-U
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12553 DENSO Spark Plug # W16EPR-U
Rotary # 12553 DENSO Spark Plug # W16EPR-U
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12554 DENSO Spark Plug # W20MR-U
Rotary # 12554 DENSO Spark Plug # W20MR-U
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12555 DENSO Spark Plug # W14EPR-U
Rotary # 12555 DENSO Spark Plug # W14EPR-U
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12558 DENSO Spark Plug # U20MU
Rotary # 12558 DENSO Spark Plug # U20MU
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Your Price: $12.99
On sale: $11.99 On Sale
Rotary # 12312 NGK spark Plug # CS6 Shop pack
Rotary # 12312 NGK spark Plug # CS6 Shop pack
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Your Price: $2.49
On sale: $2.19 On Sale
Rotary # 11648 NGK spark Plug # BKR5E Shop pack
Rotary # 11648 NGK spark Plug # BKR5E Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11649 NGK spark Plug # BMR4A Shop pack
Rotary # 11649 NGK spark Plug # BMR4A Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11650 NGK spark Plug # BMR6A Shop pack
Rotary # 11650 NGK spark Plug # BMR6A Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11651 NGK spark Plug # BPM7Y Shop pack
Rotary # 11651 NGK spark Plug # BPM7Y Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11652 NGK spark Plug # BPM8Y Shop pack
Rotary # 11652 NGK spark Plug # BPM8Y Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11653 NGK spark Plug # BPMR6A Shop pack
Rotary # 11653 NGK spark Plug # BPMR6A Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11654 NGK spark Plug # BPMR7A Shop pack
Rotary # 11654 NGK spark Plug # BPMR7A Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11655 NGK spark Plug # BPR2ES Shop pack
Rotary # 11655 NGK spark Plug # BPR2ES Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11656 NGK spark Plug # BR7HS Shop pack
Rotary # 11656 NGK spark Plug # BR7HS Shop pack
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 11523 NGK spark Plug # BKR6E
Rotary # 11523 NGK spark Plug # BKR6E
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 11571 NGK spark Plug # CM6
Rotary # 11571 NGK spark Plug # CM6
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Your Price: $13.99
On sale: $12.99 On Sale
Rotary # 11307 Champion spark Plug # RCJ7Y
Rotary # 11307 Champion spark Plug # RCJ7Y
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Your Price: $5.99
On sale: $4.99 On Sale
Rotary # 11308 Champion spark Plug # RCJ8
Rotary # 11308 Champion spark Plug # RCJ8
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Your Price: $5.99
On sale: $4.99 On Sale
Rotary # 11220 Champion spark Plug # RC14YC SHOP PACK
Rotary # 11220 Champion spark Plug # RC14YC SHOP PACK
Average Rating 0 Review(s)
Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 11078 NGK spark Plug # ZGR5A
Rotary # 11078 NGK spark Plug # ZGR5A
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Your Price: $5.99
On sale: $4.99 On Sale
Rotary # 10988 NGK spark Plug # CR7E
Rotary # 10988 NGK spark Plug # CR7E
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Your Price: $10.99
On sale: $9.99 On Sale
Rotary # 10989 NGK spark Plug # BPR7HS
Rotary # 10989 NGK spark Plug # BPR7HS
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10990 NGK spark Plug # DR8EA
Rotary # 10990 NGK spark Plug # DR8EA
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10991 NGK spark Plug # DPR8EA-9
Rotary # 10991 NGK spark Plug # DPR8EA-9
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10992 NGK spark Plug # DR7EA
Rotary # 10992 NGK spark Plug # DR7EA
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10993 NGK spark Plug # CR7HS
Rotary # 10993 NGK spark Plug # CR7HS
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10994 NGK spark Plug # DR8ESL
Rotary # 10994 NGK spark Plug # DR8ESL
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10995 NGK spark Plug # CR6E
Rotary # 10995 NGK spark Plug # CR6E
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Your Price: $10.99
On sale: $9.99 On Sale
Rotary # 10997 NGK spark Plug # BPR4HS
Rotary # 10997 NGK spark Plug # BPR4HS
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10998 NGK spark Plug # DCPR8E
Rotary # 10998 NGK spark Plug # DCPR8E
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Your Price: $6.99
On sale: $5.99 On Sale
Rotary # 10999 NGK spark Plug # BR7HS
Rotary # 10999 NGK spark Plug # BR7HS
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 10898 NGK spark Plug # ZFR4F-11
Rotary # 10898 NGK spark Plug # ZFR4F-11
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Your Price: $5.99
On sale: $4.99 On Sale
Rotary # 10786 Champion spark Plug # QC12YC
Rotary # 10786 Champion spark Plug # QC12YC
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Your Price: $6.99
On sale: $5.99 On Sale
Rotary # 10788 Champion spark Plug # QJ19LM
Rotary # 10788 Champion spark Plug # QJ19LM
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Your Price: $6.29
On sale: $5.29 On Sale
Rotary # 10707 NGK spark Plug # BR6S
Rotary # 10707 NGK spark Plug # BR6S
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 10427 NGK spark Plug # CMR5H
Rotary # 10427 NGK spark Plug # CMR5H
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Your Price: $8.99
On sale: $7.99 On Sale
Rotary # 10370 NGK spark Plug # C8HSA
Rotary # 10370 NGK spark Plug # C8HSA
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 10234 NGK spark Plug # BR2LM
Rotary # 10234 NGK spark Plug # BR2LM
Average Rating 0 Review(s)
Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 10187 NGK spark Plug # CMR6H
Rotary # 10187 NGK spark Plug # CMR6H
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Your Price: $8.99
On sale: $7.99 On Sale
Rotary # 10188 NGK spark Plug # CMR7H
Rotary # 10188 NGK spark Plug # CMR7H
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Your Price: $8.99
On sale: $7.99 On Sale
Rotary # 9993 Champion spark Plug # CJ8Y SHOP PACK
Rotary # 9993 Champion spark Plug # CJ8Y SHOP PACK
Average Rating 0 Review(s)
Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 9871 NGK spark Plug # FR4
Rotary # 9871 NGK spark Plug # FR4
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 9536 Champion spark Plug # RJ19LM SHOP PACK
Rotary # 9536 Champion spark Plug # RJ19LM SHOP PACK
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 9730 Champion spark Plug # 2071
Rotary # 9730 Champion spark Plug # 2071
Average Rating 0 Review(s)
Your Price: $6.99
On sale: $5.99 On Sale
Rotary # 6877 Champion spark Plug # J19LM SHOP PACK
Rotary # 6877 Champion spark Plug # J19LM SHOP PACK
Average Rating 0 Review(s)
Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 7868 Champion spark Plug # N11YC
Rotary # 7868 Champion spark Plug # N11YC
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Your Price: $4.49
On sale: $3.49 On Sale
Rotary # 8883 Champion spark Plug # RCJ6Y
Rotary # 8883 Champion spark Plug # RCJ6Y
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Your Price: $5.99
On sale: $4.99 On Sale
Rotary # 8073 Champion spark Plug # RV17YC
Rotary # 8073 Champion spark Plug # RV17YC
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12381 Champion spark Plug # XC92YC
Rotary # 12381 Champion spark Plug # XC92YC
Average Rating 0 Review(s)
Your Price: $6.29
On sale: $5.29 On Sale
Rotary # 9371 NGK spark Plug #  B2LM SHOP PACK
Rotary # 9371 NGK spark Plug # B2LM SHOP PACK
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 9385 NGK spark Plug # B4LM SHOP PACK
Rotary # 9385 NGK spark Plug # B4LM SHOP PACK
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 9388 NGK spark Plug # BM6A SHOP PACK
Rotary # 9388 NGK spark Plug # BM6A SHOP PACK
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 9392 NGK spark Plug # BPM7A SHOP PACK
Rotary # 9392 NGK spark Plug # BPM7A SHOP PACK
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 12234 NGK spark Plug # C7HSA
Rotary # 12234 NGK spark Plug # C7HSA
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Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 12064 NGK spark Plug # CMR4H
Rotary # 12064 NGK spark Plug # CMR4H
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Your Price: $9.99
On sale: $8.99 On Sale
Rotary # 12376 NGK spark Plug # CMR-6A
Rotary # 12376 NGK spark Plug # CMR-6A
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Your Price: $9.99
On sale: $8.99 On Sale
Rotary # 9593 NGK spark Plug # CMR7A
Rotary # 9593 NGK spark Plug # CMR7A
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Your Price: $8.99
On sale: $7.99 On Sale
Rotary # 14415 NGK spark Plug # CMR7H-10
Rotary # 14415 NGK spark Plug # CMR7H-10
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Your Price: $8.99
On sale: $7.99 On Sale
Rotary # 9405 NGK spark Plug # CR5HSB
Rotary # 9405 NGK spark Plug # CR5HSB
Average Rating 0 Review(s)
Your Price: $5.29
On sale: $4.29 On Sale
Rotary # 13039 NGK spark Plug # DR7EB Kohler XT6 and XT 7
Rotary # 13039 NGK spark Plug # DR7EB Kohler XT6 and XT 7
Average Rating 0 Review(s)
Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 5851 NGK spark Plug # TR5
Rotary # 5851 NGK spark Plug # TR5
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Your Price: $4.99
On sale: $3.99 On Sale
Rotary # 5857 NGK spark Plug # UR4
Rotary # 5857 NGK spark Plug # UR4
Average Rating 0 Review(s)
Your Price: $4.99
On sale: $3.99 On Sale
  
 

The spark plug is what makes it possible for your Lawn mower engine to ignite the gas during the combustion process. The Spark Plug is the center piece of your engine and while a clean spark plug allows for easy starting and efficient engine operation, a old spark plug that's worn, dirty or fouled won't be able to deliver the needed spark needed to start engine . If your lawn mower is difficult to start, a worn-out spark plug may be the culprit. This is a very simple fix that most home owners can do.

Step-by-Step Plug Replacement

Replacing a spark plug is one of the easiest tasks of lawn mower maintenance. The only tools you'll need is a spark plug socket and a spark plug gauge. Follow these simple steps and you'll be on your way in no time to a properly running lawnmower.

  1. Disconnect the lawnmower's spark plug lead; then clean around the spark plug to remove any debris that might have otherwise fallen into the spark plug hole once it's removed.
  2. Use the spark plug socket to remove the spark plug., and they're available in a variety of sizes to fit any size spark plug (13/16 and 3/4 in. spark plugs are the most common). If the spark plug refuses to turn, spray it with a penetrating lubricant and allow it to soak in for about 10 minutes.
  3. Once the spark plug is removed, inspect its electrode to see how the engine is running. If the spark plug's electrode is wet, there may be a problem with the engine's choke system or the fuel mixture may be too rich. If the electrode is very dry and powdery, the engine may be starved for fuel or there may be a crack in the carburetor mounting gasket.
  4. Check the gap on the new spark plug before installing it. A new plug will often come pre-gapped to match your specific engine, but use a spark plug gauge to verify that it matches the manufacturer's specifications. If necessary, use the gauge to gently bend the curved electrode to the correct gap. You'll know the gap is correct when the gauge slightly drags as you pull it through the gap.
  5. Insert the new spark plug into the spark plug hole, hand turning the new plug until the threads catch. Switch to the spark plug socket and ratchet the plug down until it stops; then turn it another quarter turn. Do not overtighten or apply too much torque to the spark plug, as you'll either crack the plug's ceramic body or you'll make it next to impossible to remove the plug the next time.

While all spark plugs are printed with a model number on their ceramic bodies, it's not uncommon for the printing to wear off over time. If you can't read the spark plug model number, or if you're unsure as to what fits your lawnmower, check with a service professional. He or she will be able to quickly determine which spark plug you need, so that you can easiiy get your mower back in service