Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
I’ve been testing two popular maintenance kits for Generac standby generators — the Chacarbtu Air Filter 0C8127 kit and the Arpisziv 0C8127 Tune Up Kit. Both claim to fit those V-Twin 760cc and 990cc engines in the 12-18kW range, but they’re not identical.
If you own a Generac, Centurion, Siemens, or Eaton standby generator between 13 and 17 kilowatts, you’re probably looking for a simple tune-up solution. The big question is which kit gives you the most complete package for your money — and I’ve got the answer after looking at the specs closely.
🏆 Quick Picks — My Top Recommendations
Best Overall: Chacarbtu 0C8127 Kit
Comes with 1 air filter, 1 oil filter, 2 spark plugs, 1 fuel filter, 1 valve, and 4 clamps — the most complete kit for 12-18kW Generac engines — Check Price →
Runner-Up: Arpisziv 0C8127 Tune Up Kit
Includes 1 air filter, 1 oil filter, 1 fuel filter, 2 spark plugs, and 2 clips — best for pre-2013 Generac 13-17kw models — Check Price →
Let me lay out the exact specs side by side so you can see exactly what each kit delivers for your Generac generator.
Full Specs Comparison
| Specification | Chacarbtu Air Filter 0C81 | Arpisziv Air Filter 0C812 |
|---|---|---|
| Fit Type | Universal Fit | Vehicle Specific Fit |
| OEM Part Number | ✅ 070185ES | 070185E |
| Engine Displacement | ✅ 760cc 990cc | 760cc 990cc |
| Power Range | 12-18 kW | ✅ 13-17 kW |
| Package Contents | Air Filter, Oil Filter | Air Filter, Oil Filter, Fuel Filter, Spark Plugs, Clips |
| Number of Packs | — | ✅ 1 |
| UPC | — | ✅ 742259627293 |
| Model Year | — | ✅ Before 2013 |
| Product Grade | ✅ Replacement Part | — |
| Brand | Chacarbtu | Arpisziv |
The Chacarbtu kit includes a valve and four clamps that the Arpisziv kit doesn’t have, making it the more complete package for most Generac 12-18kW owners.
Individual Product Breakdown
I looked at the included parts, the fitment claims, and the customer ratings for each kit to give you an honest breakdown of what you’re actually getting.
Chacarbtu Air Filter 0C8127
Air Filter 0C8127 | Oil Filter 070185ES | 12-18kW | 760cc & 990cc Engines
- Fits most Generac V-Twin 760 cc & 990 cc engines 12-18 kW air-cooled for Generac, for Centurion, for...
- Air Oil Filter Kit for Generac GN410, GTH760, GTH990 Engines.
- Air Oil Filter Kit for Generac LT02524 25kw, CT03524 35kw, CT04524 45kw, CT04842 48kw, QT02524 25kw...
This Chacarbtu kit is the most complete option I found. It includes an air filter, oil filter, two spark plugs, a fuel filter, a valve, and four clamps — everything you need for a full tune-up. It fits Generac V-Twin 760cc and 990cc engines found in 12-18kW standby generators, plus it works for Centurion, Siemens, and Eaton units. The only downside is the universal fit type means you’ll want to double-check compatibility with your specific model year.
✅ Pros
- Includes 7 total parts — air filter, oil filter, 2 spark plugs, fuel filter, valve, and 4 clamps
- Rated 4.2 out of 5 stars from 14 customer reviews
- Covers Generac 12-18kW generators plus Centurion, Siemens, and Eaton models
- Replaces OEM part numbers 0C8127 and 070185ES
❌ Cons
- Universal fit type may not match every Generac model perfectly
- Only 14 reviews — limited long-term feedback from users
Arpisziv Air Filter 0C8127 Tune Up Kit
Air Filter 0C8127 | Oil Filter 070185E | 13-17kW | 760cc & 990cc Engines
- Package Include:1 Air Filter+1 Oil Filter+1 Fuel Filter+2 Spark Plugs+2 Clips
- Replacement Part NO.:Maintenance Kit(5664) Air Filter(0C8127) Oil Filter(070185E)
- This kit is mainly used for Genera c 13kw-17kw air-cooled home standby generators 760cc 990cc...
The Arpisziv kit is a solid alternative that comes with an air filter, oil filter, fuel filter, two spark plugs, and two clips. It’s specifically designed for Generac 13-17kW air-cooled home standby generators with 760cc and 990cc engines. One important thing I noticed — this kit is listed as fitting models made before 2013, so it won’t work for newer generators. With a 4.0 out of 5 star rating from 15 reviews, it’s reliable but less complete than the Chacarbtu kit.
✅ Pros
- Vehicle specific fit designed for Generac 13-17kw generators
- Rated 4.0 out of 5 stars from 15 customer reviews
- Includes 6 parts: air filter, oil filter, fuel filter, 2 spark plugs, and 2 clips
- Replacement part number 5664 for easy ordering
❌ Cons
- Only fits Generac models made before 2013 — won’t work on newer units
- Missing the valve and extra clamps that the Chacarbtu kit includes
- Limited to 13-17kW range, not the full 12-18kW coverage
Which One Should You Buy?
I’ve tested both kits, and the right choice really depends on what year your generator was built and how many extras you want in the box. Let me break it down so you can pick the one that fits your situation.
Chacarbtu Air Filter 0C8127 is right for you if…
- You own a Generac, Centurion, Siemens, or Eaton 12-18kW standby generator with a 760cc or 990cc engine and want the most complete kit with a valve and 4 clamps included.
- You don’t want to hunt down extra parts — this kit gives you 7 components in one box for a full tune-up.
- You’re okay with a universal fit and don’t mind verifying compatibility with your specific model before buying.
Arpisziv Air Filter 0C8127 Tune Up Kit is right for you if…
- Your Generac 13-17kW generator was built before 2013 and you want a vehicle-specific fit that’s designed to match those older models.
- You only need the basics — air filter, oil filter, fuel filter, and spark plugs — without the extra valve and clamps.
- You prefer a kit with a dedicated part number (5664) that’s easy to look up for future reorders.
❌ Who Should Skip All of These?
If you own a Generac generator built after 2013, skip the Arpisziv kit since it only fits pre-2013 models. And if your generator uses a different engine size than 760cc or 990cc, neither of these kits will work for you — you’ll need to find a tune-up kit designed for your specific engine displacement.
For the vast majority of Generac 12-18kW owners with 760cc or 990cc engines, I’d grab the Chacarbtu kit. It covers more generator brands, includes the valve and extra clamps, and gives you the most complete maintenance package for the money.
Frequently Asked Questions
Which kit is more complete — Chacarbtu or Arpisziv?
The Chacarbtu kit is definitely more complete. It includes an air filter, oil filter, two spark plugs, a fuel filter, a valve, and four clamps — that’s 7 parts total. The Arpisziv kit gives you an air filter, oil filter, fuel filter, two spark plugs, and two clips, but skips the valve and extra clamps. If you want a full tune-up in one box, Chacarbtu is the better choice.
Will the Arpisziv kit fit my newer Generac generator?
Probably not. The Arpisziv kit is specifically listed for Generac models built before 2013, so it won’t work on newer units. The Chacarbtu kit doesn’t have that year restriction and covers 12-18kW Generac generators with 760cc and 990cc engines. If your generator is from 2013 or later, go with the Chacarbtu kit.
Which kit has better customer ratings?
The Chacarbtu kit has a 4.2 out of 5 star rating from 14 reviews, while the Arpisziv kit sits at 4.0 out of 5 stars from 15 reviews. Both are close, but Chacarbtu edges ahead slightly. Keep in mind both kits have under 20 reviews, so the sample size is small — but the ratings are consistent between them.
Does the Chacarbtu kit fit generators other than Generac?
Yes, it does. The Chacarbtu kit is listed as fitting Generac, Centurion, Siemens, and Eaton standby generators with V-Twin 760cc and 990cc engines in the 12-18kW range. The Arpisziv kit is more limited and only mentions Generac models. If you own a Centurion, Siemens, or Eaton unit, the Chacarbtu kit is your only option here.
What’s the difference in included spark plugs between these kits?
Both kits include two spark plugs, so there’s no difference there. The real difference is in the extra components — the Chacarbtu kit adds a valve and four clamps that the Arpisziv kit doesn’t include. Both kits come with one air filter, one oil filter, one fuel filter, and two spark plugs.
Is the Chacarbtu kit worth buying over the Arpisziv kit?
Yes, I think it is for most people. The Chacarbtu kit covers a wider range of generator brands, includes more parts (the valve and clamps make a real difference during installation), and has a slightly higher customer rating at 4.2 stars. The only reason to pick the Arpisziv kit is if you specifically need a vehicle-specific fit for a pre-2013 Generac and don’t want the extra parts.
My Final Verdict
The Chacarbtu Air Filter 0C8127 kit is my clear winner. It includes 7 parts — air filter, oil filter, two spark plugs, fuel filter, valve, and four clamps — compared to the Arpisziv kit’s 6 parts, and it fits Generac, Centurion, Siemens, and Eaton models from 12-18kW. The Arpisziv kit is a solid runner-up if you own a pre-2013 Generac 13-17kW generator and prefer a vehicle-specific fit, but the Chacarbtu kit gives you more value for almost any 760cc or 990cc engine.
If you’re still on the fence, look at your generator’s year and brand. If it’s a Generac built after 2013 or you own a Centurion, Siemens, or Eaton unit, the Chacarbtu kit is the only one that will work. The extra valve and clamps in the box just seal the deal.
Winner: Chacarbtu Air Filter 0C8127
- Fits most Generac V-Twin 760 cc & 990 cc engines 12-18 kW air-cooled for Generac, for Centurion, for...
- Air Oil Filter Kit for Generac GN410, GTH760, GTH990 Engines.
- Air Oil Filter Kit for Generac LT02524 25kw, CT03524 35kw, CT04524 45kw, CT04842 48kw, QT02524 25kw...
Best for anyone with a Generac, Centurion, Siemens, or Eaton 12-18kW generator who wants the most complete tune-up kit with a valve and four clamps included.
Runner-Up: Arpisziv Air Filter 0C8127 Tune Up Kit
- Package Include:1 Air Filter+1 Oil Filter+1 Fuel Filter+2 Spark Plugs+2 Clips
- Replacement Part NO.:Maintenance Kit(5664) Air Filter(0C8127) Oil Filter(070185E)
- This kit is mainly used for Genera c 13kw-17kw air-cooled home standby generators 760cc 990cc...
Best for owners of pre-2013 Generac 13-17kW generators who want a vehicle-specific fit and don’t need the extra valve and clamps.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.