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Description
21N9-32100 CPU for Hyundai R320LC-7 Controller ExcavatorProduct Name: Controller CPU Controller UnitApplied Model: Hyundai R 7 Series Model. Part Number: 21N4 33102 21N4 32100 21N9 34100 21N8 32102 21N9 32100 21N3 32200 21NA 32600 21N6 32504 21N8 32500 21N7 32101 21N6 43100 21N8 32206 21N8 32600 21N1 32102 21N6 33103 21N6 42102 21N8 32301 21N5 34100 21N8 32302 21N8 32401 21N1 32101 21N6 32501 21NA 32101 21N1 34810 21N6 34200 21N5 32100 21N5 32101 21N4 33101 21N6 43101 21N8 32330 21N6 44101 21N7 32100 21N3
Product Name: Controller CPU Controller UnitApplied Model: Hyundai R-7 Series Model.
Part Number: 21N4-33102/21N4-32100/21N9-34100/21N8-32102/21N9-32100/21N3-32200/21NA-32600/21N6-32504/21N8-32500/21N7-32101/21N6-43100/21N8-32206/21N8-32600/21N1-32102/21N6-33103/21N6-42102/21N8-32301/21N5-34100/21N8-32302/21N8-32401/21N1-32101/21N6-32501/21NA-32101/21N1-34810/21N6-34200/21N5-32100/21N5-32101/21N4-33101/21N6-43101/21N8-32330/21N6-44101/21N7-32100/21N3-32753/21N3-32300/21N6-33100/21N6-33102/21N6-44100/21N6-42100/21N9-32101/21N6-32502/21N9-32600/21N6-20020/21NA-34100/21N6-32102/21N6-42101/21N8-32300/21N6-34890/21N6-32503/21N8-32402.
Country of Origin: China
Conditions: New and programmed.
Warranty: 12 months.
Delivery Time: 3-7 days.
Prepare Time: 2~3 days.
Brand: SINOCMP
Service System: Online support
Packing: Standard packing for export.
Shipping Method: DHL, FedEx, UPS, TNT, USPS EMS, etc.
Payment Methods: Credit Card, PayPal, etc.
Note: Please check the machine model before buying. If you are not sure, please contact us for confirmation.
Track Your Order: When it ships, an email will arrive to you containing the tracking number with a link.
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
4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Simple and easy to use
Color: Yellow, Size: 5.5" Lift
We took a late fall trip to Branson Missouri pulling our Camper. We had to use the Camco Trailer Aid when we got to our campsite and it performed as advertised. Good sturdy product that worked as advertised.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
A Must-have for Double-axle Travel Trailers
Color: Yellow, Size: 5.5" Lift
I moved from a diesel pusher motorhome back to a truck and Lance travel trailer. ‘Done with Diesels’ is my new motto. I wanted to check the wheel bearings and couldn’t find the proper way to jack up the side. Some people said jack here, some said jack there, and some said never to use a jack at all, so I was confused. Decided to use some of my leveling blocks and build a ramp to drive up onto and that ended in failure. Either it wouldn’t go up without spitting it out and still wasn’t high enough. I resorted to jacking it up at the spot I thought was best, but wasn’t comfortable with the entire side supported with a small bottle jack cylinder. So I ordered this and it was well worth the wait. Trailer pulls right up onto it and the other tire is ready to work on. The weight is more evenly distributed and certainly feels safer. Obviously this won’t work for a single axle, but for double axles it works for maintenance and makes tire changing a breeze. It’s as good as everyone says it is and has a permanent place in my trailer storage compartment.
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Reviewed in the United States on August 15, 2024
★★★★★ 5
Works exactly as stated with a dual axel trailer
Color: Yellow, Size: 5.5" Lift
I purchased this on a hope, I had a trip planned to pull a school trailer 2600 miles round trip and had to use my pickup truck jack if I had a tire issue. I didn't like my odds and bought this ramp hoping it would make things simpler.
My second day into driving and I had my first tire blow out. The ramp workers perfectly and I had the new tire on the trailer in 15 minutes. Later in the day, I caught a second tire on the trailer down to threads and used the ramp again to change out tires at a truck stop.
I analyzed all the "whys" as to what made the tires blow and fixed it to make the rest of my trip safe and trouble free but this ramp made things quick and easy when i needed it. I'd totally recommend this product and I'm planning to purchase another and leave it with the school trailers for future use.
Keep in mind you need at least a dual axel trailer for this to work and have a spare tire to swap to.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Great product!
Color: Yellow, Size: 5.5" Lift, Color: Yellow, Size: 5.5" Lift
This is the best product to own if you need to change a tire on a tandem boat trailer. We have never changed a tire on our trailer before so we did some research and discovered this product. It was the best investment made. Changing the tire was fast and easy.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
Seems to be well made
Color: Yellow, Size: 5.5" Lift
Husband says it seems to be well made. He hasn’t had to use it yet.
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Reviewed in the United States on January 29, 2026