Pay in installments of $8.24 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
RPM Rear A-arms for ARRMA Kraton 8S & Outcast 8S 80812The ARRMA Kraton 8S & Outcast 8S are 26 lbs. (12kg.) of high flying, dirt shredding, jump killing fun! If your A arms arent up to the abuse this massive monster can dish out, look no further than RPM. Our replacement rear A arms are designed with the backyard basher in mind and can handle some serious abuse and come back for more. RPM rear A arms have a triple beam style construction designed to spread impact energy across all three beams. Each beams
The ARRMA Kraton 8S & Outcast 8S are 26 lbs. (12kg.) of high-flying, dirt shredding, jump-killing fun! If your A-arms aren’t up to the abuse this massive monster can dish out, look no further than RPM. Our replacement rear A-arms are designed with the backyard basher in mind and can handle some serious abuse and come back for more.RPM rear A-arms have a triple beam style construction designed to spread impact energy across all three beams. Each beam’s cross-section is a whopping 5/8” (15.8mm) tall x 3/8” (9.5mm) wide. These massive beams reduce unwanted flex during normal suspension movement, yet allow impact-absorption during those not-so-perfect landings and crashes. We also moved the inner cross brace away from the chassis, eliminating the droop stop entirely. While this may seem counter-intuitive, our test truck’s chassis was bent at the droop stops, clearly illustrating that extreme impacts were too much for the chassis plate to handle. After all, there’s nothing worse than a bent chassis.
Made in the USA from our trademark blend of ultra durable materials, you can’t go wrong with RPM!
Version Notes: RPM A-arms work perfectly with 8S versions of the Kraton & Outcast using ARRMA #330569 Spring Perches. EXB models using ARRMA #330740 Spring Perches may experience interference issues at both the shock mount and sway bars. RPM does not recommend the use of our a-arms on these vehicles since modification of the a-arms may be necessary to eliminate bind at the shocks and sway bars.
Tech Notes: RPM Rear A-arms for the ARRMA Kraton 8S are sold as a pair. RPM A-arms replace stock ARRMA #ARA330590.
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
4.3 ★★★★★
Based on 15 reviews
Sort
Product Reviews
★★★★★ 5
So easy and convenient for everyday bottle washing
I’ve been using these Momcozy washing blocks with the KleanPal Pro baby bottle washer, and they work exactly as intended. The tablets dissolve fully during the wash and leave bottles, pump parts, and accessories coming out clean with no residue or strong scent.
What I like most is the convenience. There’s no measuring or spilling liquid detergent, and each tablet is perfectly portioned. It makes the whole washing process quicker and more consistent, especially when you’re washing bottles multiple times a day.
They’ve been gentle on all of my baby items and haven’t caused any cloudiness or buildup on bottles or nipples. Overall, these are a simple and reliable refill to keep the washer running smoothly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
★★★★★ 5
Compact and comes with many!
I recently tried the Mom Cozy detergent blocks for the bottle washer, and I'm thoroughly impressed. These tiny blocks come in small, compact bags, making them incredibly easy to store and use. Despite their size, they pack a powerful cleaning punch, leaving bottles sparkling clean and free of residue.
I love how convenient they are – just pop one into the washer, and you're good to go. Plus, the fact that they come in bags with many blocks ensures I won't run out anytime soon. If you're looking for a hassle-free and effective cleaning solution for your baby bottles, these Mom Cozy detergent blocks are a must-try!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
★★★★★ 5
Great cleaner
Great great! Cleans perfectly and easy to use, just drop it in the bottle washer. Super time saving and great value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
A Game-Changer for Breastfeeding Moms!
I was a bit skeptical about buying a specialized bottle washing block at first, but I'm so glad I took the plunge! The Momcozy Official Washing Block is a total game-changer for breastfeeding moms like myself. This product has made my life as a nursing mom so much easier and more convenient.
First of all, let me just say that this block is SUPER easy to use. It's simple to pop in a dirty bottle into the machine, and before you know it, your bottles are sparkling clean and ready for reuse. The block itself is also very compact and lightweight, making it easy to store in my nursing bag or diaper bag.
But what really sets this product apart is its ability to get out even the toughest stains and residue. I've tried other bottle washing methods before, but nothing compares to the effectiveness of this block. My bottles come out looking like new every time!
The best part? The Momcozy Official Washing Block is affordable and makes a great investment for any breastfeeding mom. Trust me when I say that you won't regret buying this product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
★★★★★ 5
Amazing
The Momcozy Bottle Washer Tablets have been such a great addition to our daily routine. As a busy parent, anything that makes cleaning bottles easier is a huge win, and these tablets really do the job well.
They dissolve quickly and help remove milk residue and buildup from bottles, pump parts, and other baby feeding accessories. After using them, everything comes out clean, fresh, and residue-free, which gives me peace of mind knowing my baby’s items are properly sanitized.
I also love how convenient they are. Instead of measuring or dealing with messy liquids, you simply drop a tablet in and let it work. It saves time and makes the whole process much simpler, especially during those busy days and late-night bottle cleanups.
Another plus is that they seem gentle but effective, which is important when cleaning items used for babies.
Overall, these tablets are easy to use, effective, and a real time saver. I would definitely recommend them to other parents looking for a simple and reliable way to keep baby bottles and feeding supplies clean. I will absolutely be purchasing them again! ✨
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026