Best Go Kart Brake Master Cylinder for Different Kart Fitments

#1 · Best Overall

1. JINGKE Hammerhead Cylinder

• Package Dimensions: 4.92 x 4.8 x 1.69 in
• Weight: 7.8 oz

Best for: Hammerhead and TrailMaster replacement.

Why it ranks #1: Lists Hammerhead 80T, TrailMaster Mid 6.000.305 XRS/XRX, and mid-size American Sportworks fitment, with a single port for the rear caliper.

A dedicated single port for the rear brake caliper is the key feature of this JINGKE cylinder, keeping the connection focused on a rear-brake setup. Its listed fitment covers Hammerhead 80T and TrailMaster Mid 6.000.305 XRS/XRX go-karts, along with mid-size American Sportworks models.

The single-port layout serves the rear caliper directly, a straightforward match for the listed rear-brake application. JINGKE names specific Hammerhead and TrailMaster models as well as mid-size American Sportworks, giving buyers a useful starting point for identifying a replacement. The product is described as precision-fit for effortless installation, although it is an aftermarket part; comparing the supplied product images with the vehicle is part of the stated fitment check before purchase.

Skip it if you need a cylinder for a broad range of 90cc–250cc karts; JINGKE's B0G4LXHW5X lists that wider range.

For owners replacing a rear-brake cylinder on a listed Hammerhead, TrailMaster, or mid-size American Sportworks kart, this offers a focused single-port option. Check the vehicle against the supplied images because the part is aftermarket.

Listed on Amazon as: JINGKE Brake Master Cylinder HammerHead 80T TrailMaster MID 6.000.305 XRS XRX Go Kart Brake Master Cylinder

#2 · Best Mounting Detail

2. AUTOKAY Hammerhead Cylinder

• Package Dimensions: 5.83 x 5.2 x 2.83 in
• Weight: 9.9 oz

Best for: Measured rear-caliper replacement.

Why it ranks #2: Targets the same Hammerhead and TrailMaster family, and specifies a 4 1/4-inch base and 1 3/4-inch mounting-bolt spacing.

A stated 1 3/4-inch mounting-bolt spacing gives this AUTOKAY cylinder a concrete installation reference for owners replacing a rear-brake part. It is listed for Hammerhead 80T and TrailMaster Mid go-karts, and its single port serves the rear brake caliper.

The single rear-caliper port keeps the brake connection specific, while the 4 1/4-inch base length and 1 3/4-inch bolt spacing provide measurements to compare with the existing mounting area. AUTOKAY lists Hammerhead 80T, TrailMaster Mid, mid-size American Sportworks, and many Chinese brands as fit candidates. That breadth can help when identifying an older or less common kart, but the listed dimensions remain the practical installation reference rather than a guarantee for every model.

Skip it if you need included mounting hardware; SOLLON's B08BJKB4Y8 lists bolts and nuts in its package.

A useful candidate for a rear-caliper replacement when the kart matches the named models or the stated dimensions. Buyers should treat the broader Chinese-brand wording as a starting point and compare the mounting measurements before installation.

Listed on Amazon as: AUTOKAY Hammerhead 80T TrailMaster MID 6.000.305 XRS XRX Go Kart Brake Master Cylinder

#3 · Best Visible Reservoir

3. CNCMOTOK Hammerhead Cylinder

• Package Dimensions: 5.39 x 5.24 x 1.57 in
• Weight: 7.8 oz

Best for: Single-port rear brake fit.

Why it ranks #3: Lists the same specific Hammerhead and TrailMaster applications and describes a semi-transparent reservoir for checking brake-fluid level.

A semi-transparent reservoir makes brake-fluid level visible without opening the cap, a practical detail on this CNCMOTOK cylinder. It also specifies one port for the rear brake caliper and lists Hammerhead 80T, TrailMaster Mid 6.000.305 XRS/XRX, and mid-size American Sportworks fitment.

The reservoir's translucent hard plastic supports a quick visual fluid-level check, while its threaded cap has a built-in sealing gasket intended to prevent leakage. A die-cast aluminum-alloy pump body is described as lightweight, rust-resistant, and high-rigidity, giving the assembly material characteristics relevant to ongoing use. The single rear-caliper port and named model compatibility narrow the application; as an aftermarket part, its product pictures should be checked against the vehicle before purchase.

Skip it if you need a replacement that includes bolts and nuts; SOLLON's B08BJKB4Y8 lists those items.

This suits owners of the named Hammerhead, TrailMaster, or mid-size American Sportworks models who value a visible reservoir level and single rear-caliper connection. Compare the pictures with the kart before installation because fitment is aftermarket.

Listed on Amazon as: Brake Master Cylinder HammerHead 80T TrailMaster MID 6.000.305 XRS XRX Go Kart Brake Master Cylinder

#4 · Broadest Listed Fitment

4. JINGKE 90–250cc Cylinder

• Package Dimensions: 7.6 x 5.43 x 4.37 in
• Weight: 1.61 lb

Best for: Broad-range kart and buggy fit.

Why it ranks #4: Lists 90cc–250cc go karts and buggies, plus brands including Sunl, BMS, Roketa, Kandi, Kazuma, and Kinroad.

Compatibility from 90cc to 250cc gives this JINGKE hydraulic master cylinder a broad stated reach across go-karts, buggies, and ATVs. The listing also names Sunl, BMS, Roketa, Kandi, Kazuma, Kinroad, Hammerhead 150/250, and American Sportworks applications.

The displacement range offers a useful first filter for owners of smaller and mid-size vehicles, while the named brands help narrow the search beyond engine size alone. JINGKE specifically lists Hammerhead 150/250 karts, 150cc Carter Bros, and American Sportworks vehicles, alongside other brands. That combination supports application-based shopping, but the supplied information does not give mounting dimensions or a port count, so it provides less installation detail than a measurement-specific listing.

Skip it if you need a stated rear-caliper port and named Hammerhead 80T fit; JINGKE's B0G4LTWNB6 specifies both.

A broad-application candidate for owners of listed 90cc–250cc karts, buggies, and ATVs, especially the named Hammerhead 150/250 or Carter Bros models. Verify that the vehicle's mounting and port requirements match, as those details are not supplied.

Listed on Amazon as: Hydraulic Brake Master Cylinder Compatible With 90cc 110cc 125cc 150cc 200cc 250cc Go Kart Buggy Sunl BMS Kandi Roketa Kazuma Kinroad ATV

#5

5. SOLLON Hydraulic Cylinder

• Weight: 1.65 lb

Best for: Broad-displacement kart replacement.

Why it ranks #5: Covers several go kart brands and engine sizes from 90cc to 250cc, and includes bolts and nuts with the hydraulic cylinder.

Included bolts and nuts distinguish this SOLLON hydraulic master cylinder from listings that specify the cylinder alone, giving a buyer hardware alongside the replacement part. Its stated fit range spans 90cc through 250cc go-karts and names several buggy and ATV brands.

The listed 20mm brake-pedal bolt spacing and 60mm cylinder mounting-bolt spacing give buyers two concrete points to compare during installation planning. SOLLON names Roketa, American Sportswork, Baja, Kindi, Sunl, Kinroad, BMS, Hammerhead, and Twister among compatible brands, alongside the 90cc–250cc range. The included bolts and nuts can keep basic mounting hardware with the cylinder, though the supplied information does not specify a caliper port configuration.

Skip it if you need a stated single rear-caliper port; CNCMOTOK's B07MDY82SY specifies one for that application.

Consider this for a broad-range kart or buggy replacement when its named brands and mounting measurements match the vehicle. The included hardware is useful context, but buyers needing a specified port layout should choose a listing that states one.

Listed on Amazon as: Go Kart Hydraulic Brake Master Cylinder Replacement for 90cc 110cc 125cc 150cc 200cc 250cc Go Kart Buggy Sunl BMS Kandi Roketa Kazuma Kinroad TaoTao Twister ATV

#6 · Best Stated Bore

6. Wilwood Karting Cylinder

• Weight: 11.2 oz

Best for: Precision-bore karting setup.

Why it ranks #6: Specifically identifies a go kart master cylinder and states a 0.500-inch bore and 0.700-inch stroke.

A 0.500-inch bore paired with a 0.700-inch stroke gives this Wilwood karting master cylinder two concrete hydraulic specifications for a tailored setup. Its listing also identifies an aluminum construction and direct-reservoir configuration in kit form.

The stated bore and stroke let a buyer compare the cylinder's hydraulic dimensions with a karting system's requirements, rather than selecting by vehicle model alone. Wilwood lists aluminum construction and a direct reservoir, with the product title identifying a kit. The listing also mentions a remote-mount reservoir in its features, so buyers should account for the reservoir arrangement they need; no specific kart models or mounting dimensions are supplied.

Skip it if you need named Hammerhead 80T or TrailMaster fitment; CNCMOTOK's B07MDY82SY lists those models and a rear-caliper port.

This suits karting buyers selecting a cylinder by bore and stroke who can match the reservoir arrangement to their system. The supplied listing gives no model-specific fitment or mounting dimensions, so it is less useful for a direct vehicle-based replacement search.

Listed on Amazon as: Wilwood Master Cylinder, Go Kart, 0.500 in Bore, 0.700 in Stroke, Direct Reservoir, Aluminum, Natural, Kit

#7

7. CILOYU KT196 Brake Kit

• Package Dimensions: 9.06 x 6.5 x 5.59 in
• Weight: 2.61 lb

Best for: Coleman KT196 complete brake kit.

Why it ranks #7: Fits the 196cc 6.5hp Coleman KT196 and includes both a brake master cylinder and a brake caliper.

A master cylinder and brake caliper together make this CILOYU kit a more complete replacement route for a 196cc, 6.5hp Coleman KT196 go-kart. Rather than supplying only a cylinder, the package description names both hydraulic brake components.

Pairing the master cylinder with a caliper can simplify sourcing when both parts are needed for the listed Coleman KT196 application. CILOYU also gives a clear post-installation step: bleed air while adding new fluid until a steady flow appears. That instruction makes the hydraulic workflow explicit, while the stated compatibility with a 196cc, 6.5hp KT196 limits the fit claim to a specific kart rather than a wide model range.

Skip it if you need a cylinder for many named kart brands; SOLLON's B08BJKB4Y8 lists a wider set of applications.

This kit fits buyers servicing a Coleman KT196 who need both the master cylinder and caliper and are prepared to bleed the system after installation. Its stated fit is specific to that kart, so broader applications are not established.

Listed on Amazon as: Performance KT196 Go Kart Disc Hydraulic Brake Master Cylinder Kit

#8

8. YOXUFA Rear Cylinder

• Package Dimensions: 10.51 x 7.44 x 1.65 in
• Weight: 12.6 oz

Best for: Coleman and Yerf Dog coverage.

Why it ranks #8: Lists Coleman KT196 and multiple go kart applications, including Yerf Dog and Helix 150cc models, alongside broad ATV fitments.

A lengthy named compatibility list is the main draw of this YOXUFA rear-brake master cylinder reservoir, spanning Coleman CK100 and KT196, Yerf Dog 150cc, and Helix 150cc go-karts. It also lists several ATV, motorcycle, and pit-bike applications.

The listing connects smaller go-kart applications such as Coleman CK100 and KT196 with Yerf Dog and Helix 150cc models, which helps buyers search by vehicle rather than relying only on engine size. Its compatibility extends into multiple ATV and motorcycle models, so the stated application is not limited to karts. However, the supplied details do not provide mounting dimensions or port configuration, leaving those specifics unavailable for installation planning.

Skip it if you want listed mounting material and dimensions; SOLLON's B08BJKB4Y8 specifies bolt spacing and includes bolts and nuts.

A candidate for owners of the named Coleman, Yerf Dog, or Helix models who can identify their application from the compatibility list. The supplied information lacks mounting measurements and port details, so it offers limited installation guidance.

Listed on Amazon as: Rear Brake Master Cylinder Reservoir for 98cc 196cc 212cc 2.8hp 6.5hp Coleman KT196 CK100 SK100 150cc Yerf Dog Helix Go Kart Cart Buggy 110cc 125cc 200cc 250cc Chinese ATV Quad Pit Dirt Bike

#9

9. HIAORS Rear Cylinder

• Weight: 9.8 oz

Best for: Aluminum Chinese-kart replacement.

Why it ranks #9: Lists Yerf Dog GX150 and Coleman KT196 among its applications and specifies an aluminum construction, but gives limited sizing detail.

An aluminum construction and a stated 1.77-inch-by-1.77-inch product footprint give this HIAORS rear master cylinder tangible material and size details. Its compatibility list covers Chinese ATV, quad, pit-bike, and go-kart applications, including Yerf Dog GX150 and Coleman KT196.

The aluminum material specification identifies the cylinder's construction, while the compact listed dimensions give buyers a basic size reference when planning a replacement. HIAORS names Yerf Dog GX150 150cc, Coleman CK100-S, KT196 and RTK200, Helix 150cc, and several Chinese ATV and motorcycle models. This broad application list can help narrow a candidate by vehicle, but the supplied details do not state bolt spacing or port layout for a more specific installation comparison.

Skip it if you need stated mounting-bolt spacing; SOLLON's B08BJKB4Y8 lists cylinder mounting spacing and includes bolts and nuts.

This may suit owners of listed Chinese go-kart and ATV models who value a stated aluminum construction and compact dimensions. Buyers needing detailed mounting or hydraulic connection information will find those specifics unstated in the supplied listing.

Listed on Amazon as: Rear Brake Master Cylinder Reservoir Replacement for Yerf Dog GX150 150cc 3206 4206 3209 Coleman KT196 Go Kart ATC-250R Chinese 70cc 90cc 110cc 125cc Quad 4 Wheeler Pit Dirt Bike Parts Black

#10

10. KooingTech Brake Pump

• Package Dimensions: 6.89 x 5.31 x 3.03 in
• Weight: 14.6 oz

Best for: Compact modified-kart brake pump.

Why it ranks #10: Describes use for go karts and modified three-wheel ATVs, but offers no specific kart model fitment or mounting measurements.

A listed pump size of about 81 by 35 by 80mm gives this KooingTech master cylinder a compact reference for modified-kart brake projects. The product is described for go-karts and three-wheel ATV modified brake-pump applications, with a metal construction.

The compact stated dimensions can help buyers compare available space in a modified installation, while the metal material specification identifies the pump's construction. KooingTech describes the pump as moving brake fluid or gas to other brake pumps to push the piston and achieve braking, and also mentions preventing brake-oil leakage. The listing's application is go-kart and three-wheel ATV modification, making it more relevant to those projects than a model-specific OEM replacement search.

Skip it if you need a model-specific Coleman KT196 cylinder-and-caliper kit; CILOYU's B0FGW5GD5Y lists that application and both components.

Consider this pump for a modified go-kart or three-wheel ATV project where its dimensions and general application match the installation. It is not tied to specific kart models in the supplied information, and no mounting spacing is stated.

Listed on Amazon as: Go Kart Master Cylinder 12.8UTV Go Kart Hydraulic Brake Kit Pump