Model Fit
| Trimmer | TB22EC TB80EC TB2BP TB32EC YM21CS TB2044XP TB2040XP |
| Tiller | TB225 |
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Hipa 4PCS RDJ8JU Spark Plug for Champion RDJ7J NGK BMR6F MTD 794-00055A Y2560 Y2510 Troy Bilt TB22EC TB32EC TrimmerModel Fit Guide Model Fit Troy Bilt Trimmer TB22EC TB80EC TB2BP TB32EC YM21CS TB2044XP TB2040XP Tiller TB225 Bolens BL110 BL160 Trimmer MTD MS2550 M2510 M2500 MS2560 Trimmer Yard Man YM71SS YM2BP YM2BV Trimmer Cub Cadet BB227 ST227C ST227S BV228 BB230 CS202 CC212 SS270 BC210 ST228 BC280 CC212 Trimmer Murray M7900 MS9900 M25B M2560 M2550 Trimmer Yard Machines Y2510 Y2560 String Trimmer Replacement Part Number Champion RDJ7J Craftsman MTD 753 06847 753
Model Fit Guide
Replacement Part Number
RDJ7J
Product Specifications
| Product Application Type | String Trimmer |
| Part # | RDJ8JU |
| Pre-Gap Size | 0.7mm |
| Reach | 7.8mm |
| Thread Diameter | 14mm |
| Center Electrode Material | Nickel-Copper Core |
| Center Electrode Design | V-Cut |
| Ground Electrode Material | Nickel-Alloy |
| Ground Electrode Design | U-Groove |
| Seat Type | No Gasket |
| Resistor | Yes |
| Heat Range | 6 |
| Hex Size | 16mm |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 2249 reviews
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Product Reviews
★★★★★ 5
Durable, bouncy, not annoying like squeaky ball & our dogs LOVE them.
Size: Small 2"
Love these and my dogs love them to! Not nearly as noisy as a squeaky ball (thank goodness) and they bounce which are dogs love. They will fetch them, and they will play by tossing it up and pouncing on it when it bounces. They literally entertain themselves with it when we aren't playing fetch. Much more durable than the round rubber / latex squeaky ball / toys.
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Reviewed in the United States on May 17, 2026
★★★★★ 4
Quality item.
Size: Small 2"
These seem to be quality dog toys. I bought them for a friend's chihuahua. My cats were unimpressed, lol. The chihuahua had never seen a ball. He seemed curious, but would not approach this new item. Time will tell.
The bells have a very loud shrill sound, completely unlike any I've ever heard before.
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Reviewed in the United States on January 22, 2026
★★★★★ 5
What I was looking for!
Size: Large 3"
I bought these to continue playing fetch with my blind dog, she loves it! The only downside is the bell has slipped out once in a great while, but is easily reinserted.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
great for our blind dog
Size: Large 3"
our pup is a blind but active senior and these balls have a bell inside so she can continue playing ball! this is the second time i have ordered these.. love um!
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Great toys for dogs or cats
Size: Small 2"
Sturdy, durable toys. My dog loves the jingle. Great size. Fits in her mouth but not so small we have to worry about her swallowing them.
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Reviewed in the United States on February 28, 2026