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TRX400EX 400EX 87mm 87 416cc Big Bore Cylinder 11:1 CP Piston Cometic Gasket Kit

US $238.87
ApproximatelyAU $368.97
List price US $381.55 What does this price mean?
The seller’s previous price is required to be the previous selling price or recommended retail price (RRP) at which it was offered and/or sold for a reasonable period of time immediately prior to the discount.
Save US $142.68 (37% off)
Condition:
Brand New
More information - About this item condition
4 available4 sold
People are checking this out. 4 have added this to their Watchlist.
Breathe easy. Free delivery and returns.
Collection:
Postage:
Free USPS Ground Advantage®.
Located in: Upland, California, United States
Delivery:
Estimated between Thu, 7 Aug and Mon, 11 Aug
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the postage service selected, the seller's postage history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30-day returns. Seller pays for return postage.
Payments:
     Diners Club

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eBay item number:267172976736
Last updated on 10 Jul, 2025 12:48:22 AESTView all revisionsView all revisions

Compatibility

This part is compatible with 25 vehicle(s)
YearMakeModelSubmodelNotes
2008HondaSportrax 400TRX400EX 2x4
2007HondaSportrax 400TRX400EX 2x4
2006HondaSportrax 400TRX400EX 2x4
2005HondaSportrax 400TRX400EX 2x4
2004HondaSportrax 400TRX400EX 2x4
2003HondaSportrax 400TRX400EX 2x4
2002HondaSportrax 400TRX400EX 2x4
2001HondaSportrax 400TRX400EX 2x4
2000HondaSportrax 400TRX400EX 2x4
1999HondaSportrax 400TRX400EX 2x4
2014HondaTRX400X2x4
2013HondaTRX400X2x4
2012HondaTRX400X2x4
2011HondaTRX400X2x4
2010HondaTRX400X2x4
2009HondaTRX400X2x4
2004HondaXR400R--
2003HondaXR400R--
2002HondaXR400R--
2001HondaXR400R--
Portions of the information contained in this table have been provided by bpratv

Item specifics

Condition
Brand New
Machine Type
ATV
Items Included
Piston Rings, Gasket Set, Pistons, Wrist Pins
Color
Silver
Manufacturer Part Number
12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12251-HN1-003, 12209-KL4-005, 8604DA, 90083-KG0-981, 90085-KCY-670, C7825, H0402027S, M2001, Ring Set #3425XC, Wrist Pin #S520, CirClip #CW20
Piston Diameter
87mm
Compatible Model
TRX400EX, TRX400EX, 400X, XR400R
Material
Aluminum Alloy, Cast Iron, Steel, MLS, Viton
Custom
Best Honda 400EX Rebuild Kit On Sale Buy Rebuild Kit
MPN
M2001,C7826,12100-KCY-670,4606M08700
Brand
CP Carrillo, CP, Cometic, BPRATV, Honda TRX 400EX TRX400EX
Engine Type
4-Stroke
Type
Piston Kit
Replaces / Compared To:
196304130632, 400EX-CYL87, 400EX-TEG, 12100-KCY-670
Compatible Make
Honda
OE/OEM Part Number
12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12251-HN1-003, 12209-KL4-005, 400EX-CYL85, 8604DA, 90083-KG0-981, 90085-KCY-670, C7825, C7826, M2001, M2001,C7826,12100-KCY-670,4606M08700,1007-1, Ring Set #3425XC, Wrist Pin #S520, CirClip #CW20
Manufacturer Warranty
1 Year
Cylinder Bore Diameter
87mm
Pin Diameter
20mm
Features
The Best Parts. The Best Performance. The Best Price.
Country/Region of Manufacture
United States
Compatible Year
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Compared To:
Wiseco, ProX, Vertex, Wossner, Cylinder Works, Aftermarket
Item Weight
1 lb
Performance Part
Yes

Item description from the seller

About this seller

BPRATV

99.8% positive Feedback125K items sold

Joined Apr 2013
Welcome to BPRATV—the ultimate destination for high-quality engine rebuild kits, valvetrain components, engine bearings, pistons, cylinders, titanium hardware and fasteners, and everything Banshee! ...
See more

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage costs
5.0
Postage speed
5.0
Communication
5.0

Seller feedback (17,879)

All ratings
Positive
Neutral
Negative
  • w***e (56)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great customer service. I had some issues with the post office as I am overseas military which is no fault of BPRATV. These guys were quick and went out of their way to make sure i was taken care of and well informed on the whereabouts of my package. The package was in the mail about 24 hours after I ordered it. The items were well packaged and protected. Would 1000% recommend them for future purchases. Not to often you see this kind of customer service .
    Reply from: bpratv- Feedback replied by seller bpratv.- Feedback replied by seller bpratv.
    Thank you so much for the awesome feedback! 😊 We’re thrilled we could help you out—post office adventures can be wild, but we’ve got your back! 💪 We're glad everything arrived safe and sound (shoutout to our bubble wrap skills 😉). Customers like you make it all worth it—thank you for your service and your support! 🚀 1000% here for you anytime! 🙌
  • *****- Feedback left by buyer.
    Past month
    Verified purchase
    Exactly what I ordered and seller was very good with communication on when it has shipped and when I was getting it. Had questions about other item I ordered and they responded that day. Will definitely be shopping here again!!
  • m***r (103)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    You guys rock !!! First of all, I asked for a specific piston , and the guy took the time to go to the warehouse and try and get it for me, which he did. Then took the time to email me back. And Secondly, it was packaged perfectly. There was no way it could get damaged. There's other vendors, but I went with these guys and I'm so glad I did. I'm rebuilding a 01 trx400ex, now a 426. But I'll be going thru you first on the rest of the build. Thank you so much!!!
    Reply from: bpratv- Feedback replied by seller bpratv.- Feedback replied by seller bpratv.
    Thank you so much for your kind feedback! 😊 We’re thrilled you had a positive experience and appreciate your trust in us. Our team loves going the extra mile, and it’s great to hear efforts like finding the right piston and proper packaging mattered to you. Thank you for choosing us—it means so much. We’re always here if you need anything or just want to talk shop. Happy building, and we look forward to supporting the next steps! 🛠️ Ride on! 🚀