Brake and clutch master cylinder maintenance demands exact sealing to prevent fluid leaks and contamination. Owners of David Brown, Case and International tractors can gain confidence from the parts supplied in APUK Brake Clutch Master Cylinder Seal Kit. Will the provided sizes match older master cylinders for a dependable repair?
⚡ At a Glance
- • Seal Fit: Large and small seals sized for master cylinder ports
- • Best for: Farm vehicle owners performing brake or clutch master cylinder repairs
- • Not ideal for: Applications requiring full gasket sets or piston refurbishment kits
Replacement large and small seals plus a rubber boot are supplied for master cylinder servicing. Dimensions are given so fit can be verified before installation.
Reliable fluid sealing – thanks to accurately sized seals
Large seal outside diameter is 0.767 inches (19.5 mm) and small seal outside diameter is 0.393 inches (10 mm). Those measurements correspond to common master cylinder bore and port interfaces.
Accurate seal dimensions reduce the risk of hydraulic leaks and help restore correct pressure in brake and clutch systems. Fit-checking against the cylinder avoids time-consuming returns or reorders.
Protected cylinder internals – with a purpose-sized rubber boot
Rubber boot specifications list an internal top diameter of 6 mm, an external top diameter of 12 mm and a length of 67 mm. The boot is intended to slide over the pushrod area to shield moving parts.
Correct boot sizing helps keep dirt and water away from the master cylinder rod and seals, prolonging service life. Replacing a degraded boot reduces corrosion and grime-related failures.
Suitable for classic tractor models – thanks to explicit compatibility naming
Product description names David Brown, Case and International tractors as intended applications, indicating match with common master cylinder layouts used on those makes. Exact model-year fit should be confirmed against the provided dimensions.
Owners restoring or maintaining those tractor brands can prepare for a targeted repair using parts that match legacy assemblies. Verifying the measurements ensures the kit suits older or rebuilt master cylinders.
✨ The 4 Key Reasons for APUK Brake Clutch Master Cylinder Seal Kit
- Complete kit – Replaces both seals and the rubber boot for one repair
- Clear measurements given – Enables confident verification before purchase or fitting
- DIY friendly – Simple parts reduce workshop time for routine maintenance
- Boot included – Restores dust protection and helps preserve seal life
📋 Technical Details at a Glance
- Category: Brake/Clutch Master Cylinder Seal Kit
- Compatibility: David Brown, Case, International tractors
- Includes: Large seal, Small seal, Rubber boot
- Large Seal Outside Diameter: 0.767 in (19.5 mm)
- Small Seal Outside Diameter: 0.393 in (10 mm)
❓ Frequently Asked Questions
Q: Will these seals fit my David Brown or Case tractor master cylinder?
A: The kit is specified for David Brown, Case and International tractors; compare the provided diameters and boot measurements with the master cylinder to confirm fit. If dimensions match, the parts are appropriate for repair.
Q: What are the exact sizes of the seals included?
A: The large seal outside diameter is 0.767 inches (19.5 mm) and the small seal outside diameter is 0.393 inches (10 mm).
Q: What are the rubber boot dimensions and material?
A: The rubber boot has a top internal diameter of 6 mm, a top external diameter of 12 mm and a length of 67 mm; the boot is described as rubber.
🏆 Our Verdict
Suitable for owners and restorers of David Brown, Case and International tractors who need targeted master cylinder seal repairs. The kit’s main advantage is the inclusion of both large and small seals plus a rubber boot with explicit measurements for fit checking. Compact and practical for DIY maintenance, the kit provides straightforward value when matched correctly to the cylinder dimensions.
