You’ve probably noticed that a dull spark plug can make your Craftsman mower stumble, especially when the grass is thick and the engine is under load. The right plug—whether it’s the Briggs & Stratton 796112‑2pk, a TDM 2‑pack, or an NGK BPMR7A—delivers a crisp spark that keeps the engine humming smoothly season after season. With the proper thread size, reach, and torque, these plugs protect your mower’s performance and longevity, and the warranty backing gives you peace of mind. Let’s explore which option fits your mower best.
| Briggs & Stratton 796112-2pk Spark Plug (2 Pack) |  | Best Overall | Brand: Briggs & Stratton | Pack Size: 2‑pack | Thread Size: Not specified (standard for Briggs & Stratton) | VIEW LATEST PRICE | Read Our Analysis |
| TDM Plug 2-Pack for MTD Craftsman Cub Cadet Troy Bilt |  | Budget-Friendly Pick | Brand: Jvfnxpm | Pack Size: 2‑pack | Thread Size: 10 mm | VIEW LATEST PRICE | Read Our Analysis |
| NGK BPMR7A L7T Champion CJ8 Spark Plugs for Stihl Husqvarna |  | Premium Choice | Brand: NGK / Champion | Pack Size: (single unit) – not specified as a pack | Thread Size: Not specified (compatible with listed models) | VIEW LATEST PRICE | Read Our Analysis |
| For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc |  | Iridium Elite | Brand: PHUOC LOC THO | Pack Size: 1‑unit | Thread Size: 14 mm | VIEW LATEST PRICE | Read Our Analysis |
| Spark Plug for Craftsman T140 Lawn Tractor CMXGRAM201304 |  | Reliable Standard | Brand: Generic (BMotorParts) | Pack Size: 1‑unit | Thread Size: Not specified (generic) | VIEW LATEST PRICE | Read Our Analysis |
| 5-in-1 Lawn Mower Maintenance Kit for Major Brands |  | Complete Kit | Brand: (no specific brand listed) – includes standard OEM plugs | Pack Size: 2‑spark plugs (part of 5‑in‑1 kit) | Thread Size: Standard for Briggs & Stratton V‑Twin (unspecified) | VIEW LATEST PRICE | Read Our Analysis |
| for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower |  | M110 Specific | Brand: (no specific brand listed) – includes standard OEM plugs | Pack Size: 1‑spark plug (part of filter kit) | Thread Size: Not specified (generic) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Briggs & Stratton 796112-2pk Spark Plug (2 Pack)
If you own a Craftsman mower and need a reliable, easy‑install spark plug, the Briggs & Stratton 796112‑2pk is the perfect match. This two‑pack replaces J19LM, RJ19LM, 802592, and 5095K models, so you won’t need to hunt for multiple parts. Ranked #2 in lawn‑mower spark plugs and #1,749 in Patio, Lawn & Garden, it’s a proven favorite. Customers rate it 4.8 ★ out of 5 from 1,401 reviews, praising its consistent performance and hassle‑free installation. Amazon offers a voluntary 30‑day return guarantee, and the plug comes with a standard warranty—so you can swap it in confidently and keep your mower running smoothly.
- Brand:Briggs & Stratton
- Pack Size:2‑pack
- Thread Size:Not specified (standard for Briggs & Stratton)
- Core Material:(standard copper) – not detailed
- Compatibility Scope:Replaces J19LM, RJ19LM, 802592, 5095K (Briggs & Stratton engines)
- Warranty / Return Policy:Amazon 30‑day voluntary return, warranty link provided
- Additional Feature:Replaces J19LM models RJ19LM
- Additional Feature:#1 in Patio, Lawn & Garden
- Additional Feature:4.8‑star rating (1,401 reviews)
TDM Plug 2-Pack for MTD Craftsman Cub Cadet Troy Bilt
Looking for a reliable spark plug that fits a wide range of MTD, Craftsman, Cub Cadet, and Troy‑Bilt equipment? The TDM Plug 2‑Pack (Jvfnxpm, part RDZ4H) delivers exactly that. Its 10 mm thread and 12.7 mm reach match OEM numbers 753‑05255, 753‑05784, 791‑180852, and others, covering Troy‑Bilt models from TB144 to TB6040XP, MTD series MP425‑MP479, and Ryobi 510r‑1090R. The 16 mm hex lets you install quickly, while the six‑month warranty adds peace of mind. Customers rate it 5‑star, and its Amazon rank (#177,663) shows solid demand. This pack keeps your mower firing smoothly without hassle.
- Brand:Jvfnxpm
- Pack Size:2‑pack
- Thread Size:10 mm
- Core Material:(standard copper) – not detailed
- Compatibility Scope:MTD, Craftsman, Cub Cadet, Troy‑Bilt (many model numbers)
- Warranty / Return Policy:6‑month warranty, Amazon return policy implied
- Additional Feature:10 mm thread diameter
- Additional Feature:16 mm hex size
- Additional Feature:6‑month warranty
NGK BPMR7A L7T Champion CJ8 Spark Plugs for Stihl Husqvarna
The NGK BPMR7A L7T and Champion CJ8 spark plugs are the top pick for anyone who wants dependable power from Stihl and Husqvarna 2‑stroke engines, thanks to their high‑quality alumina silicate ceramic insulator and pure copper core that deliver rapid heat transfer and lasting durability. You’ll find them compatible with Stihl MS170, MS180, 017, 018, TS400‑TS460 and Husqvarna 61, 266‑272XP chainsaws, covering 47‑50 CC engines. The corrosion‑resistant plating extends service life, while the pure copper core prevents overheating and validates reliable starts. They also fit Champion RCJ6Y/RCJ7Y/CJ7Y/RCJ8 and Bosch WSR5F/WS8E series. You receive a one‑year guarantee and Amazon’s 30‑day return policy.
- Brand:NGK / Champion
- Pack Size:(single unit) – not specified as a pack
- Thread Size:Not specified (compatible with listed models)
- Core Material:Pure copper core
- Compatibility Scope:Stihl, Husqvarna, Bosch, Champion, NGK models
- Warranty / Return Policy:1‑year quality guarantee, Amazon 30‑day return
- Additional Feature:Alumina silicate ceramic insulator
- Additional Feature:Pure copper core
- Additional Feature:1‑year quality guarantee
For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc
Home owners who demand reliable starts and consistent performance from their 140 cc Craftsman M110 mower will find the PHUOC LOC THO spark plug, model CMXGMAM1125499, an ideal fit. This 14 mm iridium plug delivers quick ignition, reducing misfires and extending engine life. Its iridium core and top material resist wear, keeping gaps stable under heat. You’ll appreciate the single‑unit packaging and the Amazon ranking of #475 in lawn mower spark plugs, indicating solid demand. The plug ships with a 30‑day return guarantee and warranty info via a click‑through link. Pricing stays competitive, and you can report lower offers to the seller.
- Brand:PHUOC LOC THO
- Pack Size:1‑unit
- Thread Size:14 mm
- Core Material:Iridium
- Compatibility Scope:Craftsman M110 140 cc lawn mower
- Warranty / Return Policy:Amazon 30‑day voluntary return, warranty link provided
- Additional Feature:Iridium top material
- Additional Feature:Iridium core material
- Additional Feature:#326,280 best‑seller rank
Spark Plug for Craftsman T140 Lawn Tractor CMXGRAM201304
If you need a reliable spark plug for your Craftsman T140 lawn tractor, this Generic BMotorParts unit fits perfectly and delivers consistent ignition performance. It’s a single‑piece plug engineered to match the CMXGRAM201304 specification, ensuring proper heat range and gap for smooth operation. The brand’s reputation for durability means you won’t experience misfires or rough starts, even under heavy load. Installation is straightforward: screw it in, torque to the correct setting, and you’re ready to mow. Ranking at #497 in lawn mower spark plugs shows solid market acceptance, and the ASIN B0FNZXSQM7 simplifies ordering. If you spot a lower price, feel free to share feedback.
- Brand:Generic (BMotorParts)
- Pack Size:1‑unit
- Thread Size:Not specified (generic)
- Core Material:(generic) – not detailed
- Compatibility Scope:Craftsman T140 lawn tractor
- Warranty / Return Policy:Amazon 30‑day voluntary return, warranty link provided
- Additional Feature:Generic brand
- Additional Feature:BMotorParts manufacturer
- Additional Feature:#335,666 best‑seller rank
5-in-1 Lawn Mower Maintenance Kit for Major Brands
For anyone who wants a hassle‑free seasonal service on a Craftsman, Troy‑Bilt, Husqvarna, John Deere, Cub Cadet, or any Briggs & Stratton V‑Twin mower, the 5‑in‑1 Lawn Mower Maintenance Kit is the perfect solution. You’ll get an air filter, oil filter, fuel filter, and two spark plugs—all premium, durable, and direct OEM replacements. The kit fits models that use part numbers like 792105, 7045184, or spark plugs such as Champion RC12YC, eliminating guesswork. With a one‑year warranty and a 30‑day return guarantee, you save time, money, and the hassle of hunting for separate parts. Just open the box, swap the components, and enjoy reliable starts and smooth operation.
- Brand:(no specific brand listed) – includes standard OEM plugs
- Pack Size:2‑spark plugs (part of 5‑in‑1 kit)
- Thread Size:Standard for Briggs & Stratton V‑Twin (unspecified)
- Core Material:Standard (copper) – not detailed
- Compatibility Scope:Craftsman, Troy‑Bilt, Husqvarna, John Deere, Cub Cadet (Briggs & Stratton V‑Twin)
- Warranty / Return Policy:1‑year warranty, Amazon 30‑day voluntary return
- Additional Feature:Includes air, oil, fuel filters
- Additional Feature:Fits Briggs & Stratton V‑Twin engines
- Additional Feature:1‑year warranty
for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower
Designed specifically for the Craftsman M110 140cc mower, this filter and spark plug kit delivers a clean air intake and reliable ignition, boosting engine performance and extending lifespan. You’ll notice smoother starts and steadier power because the kit filters dust efficiently and provides a fresh spark each cycle. The BEAR FLAG EDITION matches the MPN exactly, so installation is hassle‑free and you avoid costly mismatches. With a 5‑star rating and a solid best‑seller rank, it proves dependable for frequent use. Check the dimensions and photos before buying, and you’ll keep your mower running at peak efficiency all season long.
- Brand:(no specific brand listed) – includes standard OEM plugs
- Pack Size:1‑spark plug (part of filter kit)
- Thread Size:Not specified (generic)
- Core Material:Iridium (top material)
- Compatibility Scope:Craftsman M110 140 cc lawn mower
- Warranty / Return Policy:Amazon 30‑day voluntary return, warranty link provided
- Additional Feature:Designed for M110 140cc mower
- Additional Feature:Improves engine performance
- Additional Feature:5‑star rating (1 review)
Factors to Consider When Choosing a Spark Plug for Craftsman Lawn Mower
When picking a spark plug for your Craftsman mower, start by checking the heat compatibility type and range rating to match your engine’s operating temperature. Next, choose the right electrode material and guarantee the thread size matches your mower’s specifications. Finally, verify the warranty and return policy so you’re covered if the plug fails.
Heat Compatibility Type
If you pick a spark plug with the wrong heat range, you risk pre‑ignition or fouling that can damage your Craftsman mower. Heat compatibility type describes how well a plug dissipates heat under your mower’s typical load. Cold‑range plugs stay cooler, making them ideal for heavy‑load tasks like thick grass or steep hills, while hot‑range plugs run hotter and suit light‑load conditions such as mowing short, even turf. Your mower’s engine displacement, RPM ceiling, and typical workload dictate which type fits best. Smaller engines that rev high often need hotter plugs, whereas larger, slower‑revving engines benefit from colder ones. Check the manufacturer’s guide or a cross‑reference chart to match the exact heat compatibility type to your Craftsman model.
Heat Range Rating
Choosing the right heat‑range rating for your Craftsman mower’s spark plug is essential because it directly controls how quickly the plug can shed heat under load. The heat range tells you how hot the plug can run before it fouls; a higher number means a hotter plug, which fits high‑performance or heavily loaded engines, while a lower number stays cooler, ideal for normal mower duty. If the plug runs too hot, you’ll see premature wear and possible pre‑ignition; too cold, and the fuel‑air mix won’t burn efficiently, hurting power and fuel economy. Always check the owner’s manual or manufacturer specs to match the recommended range. Selecting the correct rating prevents fouling, maintains performance, and protects your engine from damage.
Electrode Material Choice
Electrode material drives how well a Craftsman mower’s plug ignites the mixture and how long it lasts, so picking the right one matters. Iridium electrodes give you the best ignitability and longest service life, making them ideal for frequent use. Nickel electrodes resist corrosion and hold up well under the humid, dusty conditions typical of lawn work, so they stay reliable. Copper‑core plugs excel at heat dissipation; their high thermal conductivity keeps the plug cool, reducing fouling and extending life. Platinum‑tipped electrodes maintain a stable gap for thousands of hours, preventing erosion that can misfire your engine. Silver‑palladium alloys combine wear resistance with quick starts, giving you a spark that fires instantly even on cold mornings. Choose the material that matches your mower’s workload and maintenance schedule.
Thread Size Matching
Because the mower’s engine is designed for a specific screw size, you must match the plug’s thread diameter and pitch exactly to avoid cross‑threading, compression leaks, or overheating. First, check the service manual for the thread specification—most Craftsman 4‑stroke mowers use a 14 mm × 1.25 mm (or 5/8‑inch × 18 tpi) thread. Use a thread gauge or a plug with the printed size to verify. Second, guarantee the plug’s reach (thread length) fits the cylinder depth; a plug that’s too long can hit the piston, while a short one may not seal properly. Third, confirm the hex size for the socket; using the wrong tool can strip the head. Finally, double‑check the torque rating and tighten to the manufacturer’s foot‑pound specification to maintain a proper seal and prevent warping.
Warranty and Return Policy
Wondering how a warranty or return policy could affect your spark‑plug purchase? First, check the warranty length and coverage—does it protect against defects for a year or longer, and does it include workmanship or just material flaws? Next, understand the seller’s return terms: note any time limits, restocking fees, or condition requirements like original packaging. Verify whether the warranty transfers if you sell the mower, which can be essential for resale value. Look for consumer protections such as Amazon’s 30‑day guarantee, which adds a safety net if the plug doesn’t fit or fails early. Finally, confirm who backs the warranty—manufacturer, seller, or a third‑party—so you know who to contact for claims and how reliable the support will be.
