Best Dirt Bike Piston Rings in 2026

O-RING ASSORTMENT KIT: NEIKO introduces our Rubber O-Ring Assortment Set. Each O-ring acts as a joint gasket to seal and protect water lines in any oil line, faucet, sink, filter, toilet, or other machinery.

VERSATILE & RELIABLE: Thanks to the NBR construction, these O-rings are resistant to water, UV, lubricants, hydraulic fluids, gasoline, alkalis, and grease. Each O-ring creates a long-lasting seal system that protects your devices from leaks.

DURABLE O-RING KIT: Each O-ring in this 270-piece set is built for long-lasting use with static and dynamic motion cylinder fittings. The rings are made of commercial-grade nitrile butadiene rubber for liquid resistance.

Installs and removes piston rings up to 6.4mm (1/4") without twisting.

Material: Carbon Steel (Plier) / Strong Spring Steel (Compressor)

Adjustable from 2-1/8" to 7" (53mm - 175mm)

For 4.000" cylinder bore

Anodized aircraft grade aluminum

Allows simple and easy piston ring installation

Package Dimensions: 4.572 H x 24.637 L x 15.748 W (centimetres)

Package Weight: 0.45 pounds

Fit type: Vehicle Specific

Heavy duty pliers offer strength and leverage for easy band compression

Band sizes include: 2-7/8" thru 3-1/8", 3-1/8" thru 3-3/8", 3-3/8" thru 3-5/8", 3-5/8" thru 3-7/8", 3-7/8" thru 4-1/8" 4-1/8" thru 4-3/8"

Storage case complete with usage instructions and photos

The piston diameter:54mm;The piston pin diameter:14mm,length of piston pin:40.8mm

Replacement for SSR BMS NST JCL Taotao Baja Kazuma Sunl Coolster Jetmoto and other unlisted brand

There are 2 type of Chinese 125cc engine,this item fit for Horizontal Engine 125cc,not for vertical engine

Soft:With a soft and elastic design, it won't strangle your hands, and the skin-friendly design won't hurt your ring or your hand.

Easy to Install: Wrap the adjuster around the ring, continue to wrap to ensure the right size, cut off the excess adjuster, try on the ring to make sure it fits comfortably.

Perfect Design: The spiral shape is designed to fit most rings and can be easily wrapped around the back of the band. The transparent material is invisible to wear without strangling the hand.

【Function】 Piston Ring Compressor and piston ring pliers.Piston ring disassembly process, expanding the piston rings.-- Piston installer plier used for installs and removes piston rings; Easy to use, safe and reliable.

【Material】： Constructed from spring steel for maximum strength and longevity that resists corrosion

【Size】-- 3 inch piston ring compressor: 53mm - 175mm; 4 inch piston ring compressor: 53mm - 175mm；6 inch piston ring compressor: 60mm - 195mm

Made of quality material; Carbon steel (plier)/ spring steel (compressor)

Piston installer plier used for installs and removes piston rings, thickness from 3/64 inch to 1/4 inch (1.2mm to 6.4mm)

Adjustable sizes from 2-1/8" to 7" (53mm - 175mm)

Use to install pistons on most passenger cars.

Band Diameter Sizes: 2-1/8" to 7" (53mm - 175mm)

Piston Installer Plier for use on the most common piston and ring diameters ranging in thickness from 3/64-inch to 1/4-inch (1.2mm to 6.4mm).

Specs: Description: Ring Compressor Kit, Complete kit includes three different-size plastic rings and locking clamp., Compresses piston rings from a range of 40mm to 60mm diameter

Stens 1 year warranty ensures reliability and performance for every part. We're confident that our products will work flawlessly, but in a rare case that it does not, we'll replace it anytime within one year of your order.

Stens branded parts are trusted by professional dealers tperform OEM quality repairs. The Stens name is featured on all Genuine Stens product packaging.

[Excellent Quality] Made of spring steel with maximum strength, resist corrosion, has coating on the surface, not easily broken and aged.

[Parts Protection] Use this compressor to install the piston and piston ring correctly in the cylinder without distorting or damaging the parts.

[Safe & Easy Use] Fully wrapped the piston compressor outside the piston, and take active locking measures to compress the piston ring, and allow the piston to be installed in the cylinder.

Compatible with SEA-DOO and many more... Please verify your OEM part number from your original unit to help ensure fitment.

Replaces: SEA-DOO: 271000002 271000101 271000290, EMP: 4-6806 46806, SIERRA MARINE: 18-6806 186806, ITEM DESCRIPTION: JET PUMP WEAR RING, UNIT TYPE: SEA-DOO, WEIGHT: 2 LBS, INSIDE DIAMETER: 140MM, OUTSIDE DIAMETER: 160MM ...

Full One Year Warranty

DESIGN: Tool set for compressing piston rings for cylinder installation, fine-tooth lock allows you to compress bands in small increments, fit almost all situations.

MATERIAL: Piston ring set with plier made of high quality manganese steel and durable iron, plier handles constructed with forged steel.

SIZE: Inculding 14pcs piston rings and 1pc plier, can suit different types of motors. Piston diameter ranges 62-145mm.

Fit: 66cc 80cc Motorized Bicycle Bike

Package Includes: 10xPistion Rings

【HIGH QUALITY】Long life-span matters, that is why our piston ring filer are made from high-quality aluminum to ensure it can work a long time

【FUNCTION】When building an engine it is extremely Crucial to have the proper piston ring gaps that means you need a piston ring grinder, which allows you to get a more precise grind and reduces the chance of overgrinding and dropping the ring

【HOW TO USE】Fix the piston ring on the pin and file the ring with the grinding wheel by shaking the handle to ensure the correct clearance of the piston ring.

Replace Part Number: 66785, 66786

Comes with a 120 Grit Grinding Wheel.

Made of high-quality aluminum, with proper clearance, safe and stable, strong and durable, it has been tested many times before sale and has a long service life.

Purpose: Mainly used to install piston rings in compression cylinders. Fine tooth lock supports you in compressing bands in small engine increments. It is an indispensable tool for mechanics, tractors, cars, trucks, racing cars, and diesel engines.

Includes: Piston ring compressor set includes 1 pliers and 14 piston rings. The diameter range of the piston ring is 62-145mm/2.4-5.7inch. The 14 diameters are suitable for different types of motors, practical and convenient.

High Quality: The piston ring set is made of manganese steel and iron, high quality and durable. The fine-tooth ratchet pliers can be used flexibly and can be parallel or perpendicular to the cylinder block for precise compression, saving time and effort.

[Size] - 72mm (2.83 Inch) OD, 56mm (2.2 Inch) ID, 1mm (0.04 inch) Thickness

[Application] - Widely used for replacing the piston ring to the air compressor

[Advantage] - The piston ring is characterized by high wear resistance, durable and long service life

BH-Motor 2 stroke 80cc 47mm Piston Gasket Pin Ring Kit for Motorized Bicycle Bike Engine Motor

Specs: Description: Top Cover Buckle Clip, Length: 2 1/4", Packaging type: Branded bag, Width: 9/16"

Replaces OEM Numbers: Husqvarna: 503894701

Compatible With/Replacement For: Husqvarna: 346, 351, 353, 356, 357, 359, 435, 440, 445, 450, 455, 545, 555, 570, 575 and 576 chainsaws

Face of top rings coated with latest generation Plasma-Moly

Decreases friction

Very resistant to scuffing

Package Dimensions: 5.588 H x 24.637 L x 15.748 W (centimetres)

Package Weight: 0.200 pounds

Fit type: Vehicle Specific

【Excellent materials】The piston ring compressor tool set made of high quality manganese steel and durable iron, plier handles constructed with forged steel.

【Scope of application】Suits a large ranges of piston diameter 62-145mm/ 2.4-5.7". Specifically: 62- 65mm/2. 4-2.6", 75mm/3", 80mm/3.1", 85-86-88mm/3.3-3.4-3.5",90- 92- 95mm/3.5-3.6-37", 100-102mm/3.9-4", 105-106-108mm/4.1-4.2-4.3", 13-114-115mm/4.4-4.5-4.52", 120-123mm/4.7-4.8", 125-126mm/4.9-5", 135-137mm/5.3-5. 4", 140-142-145mm/5.5-5.6-5.7".

【Practical】Tool set for compressing piston rings for cylinder installation, fine-tooth lock allows you to compress bands in small increments, tool solutions fit almost all situations.

THIS IS BRAND NEW: DNJ® Piston Ring Set Oversize .030 in. (.75mm)

FITS: 03-08 Chrysler, Dodge, Jeep 5.7L V8 OHV Naturally Aspirated

FITMENT NOTES: Set Services Complete Engine, 1.5x1.5x3.0

7 Inch Headlamp Trim Ring Fits for ’12-'16 FLD, ’83-’13 Touring (except Tour Glide and Road Glide), ’94-later Road King and '08-'13 Trike models. Also fits ’86-later FL Softail models with Freight Train Headlight Nacelle. Does not fit with Fairing Bra P/N 57800-00.

4.5" Auxiliary Lamps Bezel Fits for '62-later models equipped with Original Equipment or accessory Auxiliary Lamp Kits

Made of Metal,with Nice Chrome Finish,"eyebrow" Design Improve the Look of your Bike

Great Compatibility — Compatible with Cummins ISX 15 & QSX 15 and Caterpillar 3400, 3406, 3408, 3412 and C15 with a 5.4" bore.

Special Features— Alternative to PT-7040, 5394454, 5299448, 5299447 and 5299339. Each part is manufactured to OEM specifications.

Upgrade Design — Used In conjunction with an existing piston ring compressor to install piston rings into anti-polishing cylinder liners. Removing and installing the piston ring with ease and quick to save your time and energy.

Highest quality OE replacement piston ring set available - MAHLE replacement ring sets are designed with OE form, fit, and function

MAHLE piston rings with SAE 9254 high alloy steel base material combine to make the ultimate piston ring base material: higher tensile and yield strength, extended fatigue resistance, and increased material hardness

MAHLE second rings provide superior oil control, improved combustion gas management, top ring stability, and sealing providing the best possible oil control and least amount of power loss

54.00 millimeter cylinder bore ring set

Part number: 2126CS

Oem equivalent part number: 2126CS

THIS IS BRAND NEW: DNJ® Piston Ring Set Standard Size

FITS: 99-15 Chevrolet, GMC, Isuzu 4.8L-5.3L V8 OHV Naturally Aspirated L20,LMF,LC9,LMG,LH8,LS4,LY2,-,LH6,L59,L33,LM4

FITMENT NOTES: Set Services Complete Engine, 1.5x1.5x3.0, LY2, Set Services Complete Engine, LR4