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Left Upper Disc Brake Pump for 50cc-250cc ATV Go Kart Dirt Bike
Left Upper Disc Brake Pump for 50cc-250cc ATV Go Kart Dirt Bike
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Product Overview
This left upper disc brake pump is designed as a replacement hydraulic brake master cylinder and lever assembly for selected 50cc, 70cc, 90cc, 110cc, 125cc, 150cc, 200cc, and 250cc ATVs, go karts, 4-wheelers, quads, dirt bikes, motorcycles, scooters, mopeds, and buggies.
It is made for 7/8" / 22mm handlebar installation and uses an M10 x 1.25mm banjo bolt connection. This brake pump helps transfer hydraulic pressure from the hand brake lever to the brake caliper, supporting disc brake operation when the brake line, caliper, and mounting setup match.
A worn, leaking, damaged, or weak brake pump may cause soft lever feel, poor braking response, fluid leakage, or unstable braking performance. This black aluminum alloy replacement is suitable for repairing compatible hydraulic disc brake systems.
Please compare the handlebar diameter, banjo bolt size, brake hose fitting, lever position, reservoir style, and product photos with your original brake pump before ordering.
Product Compatibility
| Compatible Vehicle / Engine | Application |
|---|---|
| 50cc / 70cc ATV | Left upper hydraulic brake pump replacement |
| 90cc / 110cc ATV / Quad | Compatible disc brake master cylinder application |
| 125cc / 150cc Dirt Bike / Go Kart | Hydraulic brake lever replacement when size matches |
| 200cc / 250cc ATV / Motorcycle | Compatible brake pump when banjo and handlebar size match |
| Scooter / Moped / Buggy | Universal-style hydraulic disc brake pump replacement |
| 4-Wheeler / Quad | Compatible when brake hose and caliper setup match |
⚠️ This is a hydraulic brake part. Please confirm the handlebar size, banjo bolt size, brake hose fitting, and lever position before purchase.
Specifications
| Item | Details |
| Product Type | Left Upper Disc Brake Pump / Hydraulic Brake Master Cylinder |
| Position | Left Upper |
| Color | Black |
| Material | Aluminum Alloy |
| Handlebar Fitment | 7/8" / 22mm |
| Installation Aperture | 22mm / 7/8" |
| Banjo Bolt Size | M10 x 1.25mm |
| Compatible Engine Sizes | 50cc / 70cc / 90cc / 110cc / 125cc / 150cc / 200cc / 250cc |
| Compatible Vehicles | ATV / Go Kart / 4-Wheeler / Quad / Motorcycle / Buggy / Scooter / Moped |
| Application | Hydraulic disc brake control replacement |
| Condition | 100% Brand New |
Key Features
- Left upper hydraulic disc brake pump for selected 50cc-250cc small vehicles
- Fits 7/8" / 22mm handlebars for common ATV, dirt bike, go kart, and scooter setups
- M10 x 1.25mm banjo bolt connection for hydraulic brake line compatibility
- Black aluminum alloy construction for durable brake control replacement
- Helps replace leaking, worn, loose, or weak hydraulic brake master cylinders
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Fitment FAQ
Will this part fit my specific model and year?
This left upper disc brake pump may fit selected 50cc, 70cc, 90cc, 110cc, 125cc, 150cc, 200cc, and 250cc ATVs, go karts, dirt bikes, scooters, mopeds, motorcycles, quads, and buggies. Fitment depends on the handlebar diameter, banjo bolt size, brake hose fitting, lever position, and hydraulic brake layout rather than model year alone.
Do I need to match the OEM part number?
Matching the OEM part number is helpful, but for this brake pump, the most important details are the 22mm / 7/8" handlebar fitment, M10 x 1.25mm banjo bolt size, brake hose fitting, and left-side mounting layout.
What models or situations does this part not fit?
This brake pump may not fit vehicles with a different handlebar diameter, different banjo bolt thread, different brake hose connection, cable-operated brake system, drum brake system, or model-specific hydraulic master cylinder assembly.
What should I check before ordering?
Before ordering, check your original brake pump position, handlebar diameter, banjo bolt size, brake hose fitting, reservoir shape, lever style, brake line routing, and product photos. Make sure your original setup matches the listed 22mm handlebar mount and M10 x 1.25mm banjo connection.