1993-2008 Honda TRX300 Sportrax TRX300EX Cylinder Jug Piston Big Bore Kit
1993-2008 Honda TRX300 Sportrax TRX300EX Cylinder Jug Piston Big Bore Kit
1993-2008 Honda TRX300 Sportrax TRX300EX Cylinder Jug Piston Big Bore Kit
1993-2008 Honda TRX300 Sportrax TRX300EX Cylinder Jug Piston Big Bore Kit

1993-2008 Honda TRX300 Sportrax TRX300EX Cylinder Jug Piston Big Bore Kit

Sale price$178.78 USD
Quantity:
Fitment:
Fit for Honda Sportrax TRX300EX 2x4 1993-2008

Replaces Part Number:
Cylinder: 12100-HM3-L00, 12100-HM3-670
Piston: 13101-HM3-670
Piston Pin: 13111-HC0-000
Piston Ring Set: 13011-HM3-671
Head Gasket: 12251-HC0-013, 12251-HC0-003
Base Gasket: 12191-HM3-670, 12191-HC0-000, 12191-HC0-306, 12191-HC0-680
Chain Tensioner Gasket: 12194-HC5-740, 12194-HA0-000, 12194-HA0-306
2 x Circlips: 94601-17000

Features:
Kit includes piston, rings, pin, clips, & top end gasket kit (you get exactly what is pictured).
Cast piston has super-high silicone content for additional strength.
Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life.
Piston dome is anodized for superior heat resistance and longer lifespan.
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
80 mm x 65.50 mm Bore and Stroke.
Piston is 80 mm.
11:1 Compression ratio.
All of the components within this kit are bolt-on ready for a hassle free installation.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Piston Material: Forged Aluminum
Actual Displacement: 330 cc
Bore size: Big bore 80 mm
Piston diameter: 80 mm
Piston height: 46 mm
Piston pin diameter: 16.9 mm
Piston pin height: 55 mm
Stroke: 65.50 mm

Package Includes:
1 x Cylinder
1 x Piston
1 x Piston Ring Set
1 x Wristpin
1 x Circlips(2)
1 x Cylinder Head Gasket
1 x Cylinder Base Gasket
1 x Chain Tensioner Gasket

Note:
Big bore kit - 80 mm - 330cc.
Ring end gaps are checked prior to shipment for proper sizing.

Shipping:
Free Shipping
Handling time: Ship within 24 hours
Delivery Time: 3-7 business days

Warranty:
1. Condition: 100% Brand New
2. Warranty Period: 1 Years
3. 24-Hour Support: Provide you with timely after-sale support

Customer Reviews

Based on 67 reviews
97%
(65)
3%
(2)
0%
(0)
0%
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0%
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A
Anonymous
Can’t beat it

I put this top end on, started first crank, I rode the heck out of it the first ride. Runs great. Literally can’t beat the price . If it blows up in 6 months I would still be happy , an order another kit

A
Anonymous
Fits my bike

Solid top end honestly. Gap the rings properly and you will have no issues. For the money it’s fine.

A
Anonymous
ok

got it in today, expecting somthing to be broken or missing but nope, came well packaged and with all parts as described, comparing it to the oem cylinder and other parts can hardly tell the difference, just the head is different color

A
Anonymous
works great

Used this kit for a top-end rebuild on my bike. The piston and gasket fit perfectly, and installation was straightforward. The engine runs smoothly now with more power and efficiency. The quality of the parts is top-notch, and I’d definitely recommend it

P
Paul Humphries
Excellent quality

What a brilliant way to breath new life into a Smokie old bike. The simplest way to fix a shed full of old quads

A
Anonymous
pefect

Everything fit perfectly—cylinder, piston, rings. Engine runs way smoother now, and I’ve had zero issues. Gasket sealed well, no leaks.

M
Mike W.
Great quality!

Parts are of very good fit and finish. Quality parts for a great price!

R
Rick McCart
Jug and piston set

Went together good is working good , Thanks

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